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Home My WebLink About06.12.18 Work Sessiont F °`.�_�, ILNDOVEX 1685 CROSSTOWN BOULEVARD N.W. • ANDOVER, MINNESOTA 55304 • (763) 755 -5100 FAX (763) 755 -8923 • WWW.ANDOVERMN.GOV Andover Planning and Zoning Commission Work Meeting Agenda June 12, 2018 Andover City Hall Council Chambers 5:30 — 6:45 p.m. 1. Call to Order 2. Discussion of 2018 Comprehensive Plan Update • Draft Parks and Open Space Plan • Draft Wastewater and Comprehensive Sewer Plan 3. Other Business 4. Adjournment 1685 CROSSTOWN BOULEVARD N.W.. ANDOVER, MINNESOTA 55304 • (763) 755 -5100 FAX (763) 755 -8923 • WWW.ANDOVERMN.GOV TO: Planning and Zoning Commission CC: David D. Berkowitz, Director of Public Works /City Engineer Shane Stenzel, Park and Recreation Commission Chair FROM: Todd J. Haas, Assistant Public Works Director SUBJECT: 2. Draft Parks and Open Space Plan DATE: June 12, 2018 INTRODUCTION The Planning and Zoning Commission is requested to review the draft Parks and Open Space Chapter of the City Comprehensive Plan. DISCUSSION Attached is a draft copy of the Parks and Open Space Plan Chapter. The 2018 Park Dedication Study which is part of the Parks and Open Space Plan is not included with this item, but the Planning and Zoning Commission members were sent a copy of the study recently for review by e -mail. The Park Dedication Study was approved by the City Council on January 16, 2018. Within the Park Dedication Study, the main items of focus include the number and the types of parks (for example mini, neighborhood community playfield, etc.), suggested number of future parks that are needed to meet the standards that recommended by the National Recreation and Park Association Guidelines, the 2017 Existing and Future Park Facilities Chart and the 2018 Park Dedication fee calculation. The Parks and Open Space Plan Chapter has been reviewed and is recommended for approval by the Park and Recreation Commission. ACTION REQUIRED The Planning and Zoning Commission is requested to review the draft Parks and Open Space Chapter of the City Comprehensive Plan. Respectfully submitted, Todd J. Haas Cc: Shane Stenzel, Park and Recreation Commission Chair Attachment: Draft Parks and Open Space Plan C I T Y o v NDOVE 2018 Comprehensive Plan Update Chapter Five: Parks and Open Space Plan NL'b 60 VtO A 2018 Comprehensive Plan Update Chapter Five: Parks and Open Space Plan The City of Andover provides a variety of recreation opportunities to its residents through implementation of the Parks and Open Space Plan. The City recognizes that the anticipated growth in population will increase demands on existing facilities and programs. This chapter provides description of the various parks and recreation facilities, the tools used to plan the park system and also establishes site selection criteria for both parks and open space. Goals, policies and objectives are presented in Chapter One: Foundation of the Comprehensive Plan. Parks The City contains 69 parks and 4 open space properties ranging in size from under an acre to more than 152 acres. Anoka County operates two regional parks that serve Andover residents. There are no State or Federal parks within the city limits. Figure 5.1 shows the location of all parks and trails within the City. Figure 5.2 identifies the type of facilities in each park or open space. Types of Parks The Metropolitan Council has categorized local and regional parks according to factors such as size, use, service area, location and site attributes (Table 5). All types of local facilities can be found within the City including mini - parks, neighborhood parks\playgrounds, community playfields, community parks, local linear parks, trails, corridors and parkways. The City uses these categories in the selection of park locations to ensure a variety of park types and facilities are available to serve the needs of residents. Regional Parks The two regional parks that serve Andover residents are Bunker Hills Regional Park and Rum River Central Regional Park (Figure 5.3). • Bunker Hills Regional Park Bunker Hills Regional Park is a 1600 acre regional park reserve located in the southeast corner of Andover and extends into the adjacent cities of Blaine, Coon Rapids and Ham Lake. The park includes a variety of passive and active recreation facilities such as picnic areas and pavillions, campgrounds, playgrounds, dog park, disc golf, an indoor and outdoor archery range; a water park with multiple slides, a sand play area, a proposed lazy river, plus a wave pool; native prairie, wetland, oak savannah areas, a small lake, shade plant gardens, abundant wildlife, hiking, biking, horse and cross country skiing trails, a veterans memorial, and an 27 -hole professional golf course. A horse stable and arena offer riding lessons, trail rides, hayrides and campfire opportunities. The Bunker Hills Activities Center offer's public meeting rooms and offices full time County park staff. A year -round fullservice restaurant with banquet and meeting facilities near the south end of the County park offers seasonal theatre and serves as the golf course clubhouse. An overall master plan for the park is available from the Anoka County Park & Recreation Department. More information can also be found on their website: www.anokacountyparks.com Y 1 I Y O F '17OVE12` 2018 Comprehensive Plan Update • Rum River Central Reqional Park Rum River Central Regional Park is a 434 acre regional park located adjacent to the northwest corner of the city on the west bank of the Rum River. A substantial improvement project completed in 1999 allowed the park to reopen with picnic areas and pavilion, playground equipment, boat /canoe launch and fishing deck, canoe campsites, as well as hiking, biking, horse and cross country skiing trails. Expansion of the park area has been discussed by the Metropolitan Parks and Open Space Commission. This expansion would likely not affect adjacent residential property within Andover due to the park being separated by the Rum River. An overall master plan for the park is available from the Anoka County Park & Recreation Department. More information can also be found on their Website: www.anokacountyparks.com Regional Trails The two regional trails that pass through Andover are the Central Anoka County Regional Trail and the Rum River Regional Trail as identified in the Metropolitan Council's 2030 Regional Parks Policy Plan. Funding for these trails is provided by city, county, state and /or federal sources. Figure 5.3 shows the location of these trails in the city. A county wide trails map is available from the Anoka County Parks Department and also from their website: www.anokacountyparks.com • Central Anoka County Regional Trail Currently this trail in Andover extends along Bunker Lake Boulevard and will at some point in the future connect Bunker Hills Regional Park west to the Mississippi West County Park in the City of Anoka and to the east into Linwood Township. • Rum River Regional Trail This trail presently exists south of the intersection of Bunker Lake Boulevard and 7 t Avenue and continues south to the Mississippi River Regional Trail to provide a continuous route that connects with the Minneapolis park system. The Rum River Regional Trail is planned to extend north along 7th Avenue to the Rum River Central Regional Park in the future. Recreation Facilities Recreation facilities are an essential component of active use parks. The development of recreation facilities requires an understanding of community needs based on population, service radius, and space requirements. Standards established by the m ELEMENTS INDIAN TRIBES FLOWERS BIRDS TREES y E P x � 's F k s € e r a � s - - z k a s - k G G a a x 2 _ E h z f Y.- z k G > = x h e - € i <} i% ' x y w ^ x v, k x +, 35 x 1 2 y 4 4 e 0. x n a i p k G k G k 4 k k k C is h z z i n k x Q k¢ < W x z S w o y b y€ x ti z a z s�. k -° d ° .`. 'i 0. 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L PARKS & TRAILS MAP L E G E N D ® Parks bituminous Preserve Park 0 Park or Other Feature sidewalk C3Park Zone Acres Tobacco gravel 15 Park Number ^� nature trail ^V CIS bikeway, A City Features to CEDAR CREST PARK Na£am Comprehensive Plan Figure 5.1 177TH AVE r City Map Key for Parks & City Features +cmrlr ,r WAROJ rna.n ±s Park 0 Park or Other Feature ParkType Park Address Acres Tobacco Free �_+ r r to CEDAR CREST PARK 36W 173M LANE NW 2.49 m LAKE 2A CEDARCRESTESTATE PARK 3909174TH AVENUE NW 0.88 x Z O 9A FOX MEADOWS 4A HAWKRIDGE PARK PARK 160M FOX ST. NW 18001 VERDNI ST. NW 12.56 13.14 X 8� Z !.:,��T. SA LANGSE]H PARK 3341174THLANENW 1.67 % Q eA LUNDS NORTH PARK 2640166TH AVE. NW 4.01 X = ,x IA MARTINS MEADOWS PARKA PRESERVE 11101 NAVAJO ST. NW 54.11 X -.. - M PINE HILLS SOUTH PARK 35361615TAVE.NW 508 X (r 9A TIMBER RIVERS PARK 16980 BARIUM ST 6.78 X ❑ /_ °� + +a `r,, PARK 1776161STA ST. NW X W O I1A PINE ISNOR 11A PINE HII3 NORTH PARK 1333161ST AVE.NW 2.2 42.20 X A + +r er 13A VALLEY PARK 3929169TH AVE. NW 9.86 Q �V J I'mlrr sr WH OAKS 17A WHITE OAKS PARK 3]40172ND AVE. NW 9.27 298 BITCH RIDGE PARK 1450191ST AVE. NW 1111 28B C �-# 208 COUNTRY OAKS PARK 1063162ND LANE NW 1.10 X 21B FORESTMEADOWS PARK 1010179THAVE.NW 6.63 K 22B NORTH WOODS PRESERVE PRESERVE 16347 HANSON BLVD. NW 20.62 X 22� GQ- 288 OAKHOLLOW PARK 465159TH AVE. AVE.NW 5.89 20B /41�. +1T �.r 248 OAKVEW PARK 15951 AVOCET ST NW I" X 256 WOODLAND CROSSINGS PARK 15827 JAY Sr. NW. 511 x "... !• +>R *rssm 268 WOODLANDM ADOWS 278 DALSKE WOODLAND$ PARK PRESERVE 2139172ND AVE. NW 4WISISTAVE NW 0.98 39.45 % 288 MAPLE VIEW PARK AND OPEN SPACE PARK A PRESERVE 1251 167TH AVE NW 44.27 X r161ST AV I 11.11) Im11 29C 138MAW PARK 2602138TH AVE NW CREEK Y 0.40 X CONSTANCE BLVD ...,r +rzs 31C CROOKED LAKE BOATLANDDJG PARK 2990 BLINKER LAKE VD. MW 231 x p \((�( 251 `J f /24B L !wrxrer. sr 12C DEHNS 34C HIDDEN GREENACRES 95C HIDDEN CREEK NORTH PARK PARK PARK IM32 GUARANI ST. NW 14201UNKERLKE BL BUNKER 2.32 TUB 8.41 X tj3�✓r7 �� irora.aa rn- 95C HIDDEN CREEK LAKE 98C KELSEY ROUND LAKE PARK PARK 1341 CREEBLVD.NW NW DR 15521 HIDDEN CREEK 15521 XENA ST NW 0232 152.56 % x % 37C MEADOWOOD NORTH PARK 4519148TH AVE. NW 018 x ,3?r!4/LSP' see MEADOWOOD SOUTH 39C MEADOWSOFROUNDLAKE PARK PARK 4568147TH LANE NW 4040146TH LN. NW 0.34 037 X Q 40C NORTH WOODS EAST PARK 14035 YUKON ST. NW 2.12 X NC NORTH WOODS WEST PARK 2721140TH LANE NW 381 X 62D 42C PLEASANT OAKS 43C RNER TRAILS PARK PARK 3857143RDAVE 4635 147TH LANE NW 20.29 1293 X I) �� , 4� 741) \72D .�/ llri OT :.r 44C ROSE 45C ROLRID LAKE BOATLANDDIG PARK PARK 14MM ROSE UND AK 20604 ROUND LAKE BLVD. NW 3.51 3 51 X R D. - u,m 41x "19 48C STROOTMAN PARK 4575154TH AVE. NW 11.31 x iitJ 47G TERRACE PARK 13515 POPPY ST. NW 733 x G 46C WIDIUS PARK 3719 BUNKER LAKE BLVD. NW IL73 x �8 54Di r!:.m.ox.rr 49C CROOKED LAKE WARMING HOUSE S RINK FACILITY PARK 2939 BUNKER LAKE BLVD. NW 0.74 X 63D q 83D� ANDOVER LIONS PARK LAKE BLVD A SYCAMORE ST 19.04 X D> I!rsr.,rE.1r No ND ANDOVER STATION NORTH PARK 1823 1' 39TH 18231i9'T}iLNNW 22.16 X D 10 BLINKER HILL REGIONAL (COUNTY) PARK BUNKER LAKE BLVD. Net 558.15 {2D CHESTERTON COMMONS PARK 1414 155TH AVE 0.61 X WD CITY CAMPUS OUTDOOR HOCKEY COMPLEX PARK I S85 CROSSTOWN BLVD. NW 252 g p ,11"IAair ND CITY HALL COMPLEX eUPURPLE PARK 1685 CROSSTOWN BLVD. NW 51.28 x ( �ir76D !rtm!rr r NO COON CAEEKrtOMANDERSON TRAIL NO CREIX VIEW CROSSING PARK PARK EAST OELLOW HANSON PINE ST ON C.C. 14271 YELLOW PmE ST 1.63 0.63 X % J1175D - --�'�j 170 EVELANDFIELDS PARK 2275 ANDOVER BLVD NW 701 x n-m.n3::r 66D HARTFIELS PARK HANSON BLVD. A ANDOVER BLVD. 159 68D \1 690 HICKORYMEADOWS PARK 'NI"THAVE 077 X 9 !,e!xr/a m- 70D HIDDEN CREEK EAST PARK 2156135TH LANE NW 2.76 x �9D 71D H4LSOF BUNKER LAKE WEST PARK 1537139TH LANE NW (76 x A DOVER BLVD ,rmns.lr 72D LANDLOCKED PARK 13541 PRAIRIE RD 3.15 720 MOORES ESTATES PARK 905 CROSSTOWN BLVD. NW 076 / ° . 74D NORDEENS 76D OAK BLUFF PARK PARK 15535 JUNIPER ST. NW 14757 BLUEBIRD 57. NW 0.85 3.]9 X X �`� NNNSSS a +�:eo4rt ar 760 PRAIRIE KNOLL 770 RED OAKS EAST PARK PARK 14800 PRAIRIE ROAD NW 14045 NIGHTENGALE ST. NW 19.30 315 X 7 D /S V 0 D "'.S.c. 5D \ I �4ti 4r 78D RED OAKS WEST 79D REDWOOD PARK PARK 14058 RAVEN ST. NW 13979 BLUEBIRD ST. NW 2.96 5.82 X 1 .ELF 9D lsr °E .1r 80D SHADOWBROOK EAST NO SHADOWBROOK WEST PARK PARK 13757 BUTTERNUT ST NW BLINKER LAKE RD A GOLDENROD ST 15.03 1038 X 82D SHADY KNOLL PARK 2352 UPLANDER ST. NW 1.52 X 8 $1 D VOID 83D 83D SOPI�S PARK 1170152ND LANE NW 0.79 X Y V !fe1N�re'+r 84D SUNSHINE ND THE OAKS PARK PARK 19M CROSSTOWN BLVD NW 14431 CROSSTOWN BLVD. NW 38.65 1.33 x 79D 86D WOODI.ANDESTATES PARK 2363152ND LANE NW 0.27 X J City Features: A Andover City Hall H Composting Site O Oakview Middle School B Andover Elementary I Crooked Lake Elementary School P Recycling Center �y, 0--70 D (� _ { C Andover High School ! Fire Station # 1 O Rum River Elementary D Andover Public Works K Fire Station #2 R Staple Cemetary, �.aP,.t... E Anoka County Highway Department L Fire Station #3 F Anoka County Parks Maintenance M Legacy Christian Academy G Anoka County Sheriffs Office N Mosquito Control Parks and Open Space Inventory: # a 2.48 N O m (9 LL O) 0 d N U N 4-- Park Nama Park # Arrac Tvna .Cc iF ;° o Figure 5.2 Existing Park Facilities CEDAR CREST 1A 2.48 LIN m O) d O "O O N� L Y CEDAR CREST ESTATE N E .0 'O ;tc .O dl L L 3 C -J - C = 3 L W N 3A O ru lM O Nf >N O Y M Y U .2 U 3 HAWK RIDGE 4A E % PRE - O p A C Y O N O O U O C ca �C CEDAR CREST 1A 2.48 LIN Y CEDAR CREST ESTATE 2A 0.88 M Y FOX MEADOWS 3A 12.56 L Y Y Y HAWK RIDGE 4A 13.14 PRE Y Y LANGSETH 5A 1.67 M V Y LUND'S NORTH 6A 4.01 N MARTIN'S MEADOWS PARK 7A 12.08 CPA Y PINE HILLS SOUTH 8A 5.08 N Y Y TIMBER RIVERS 9A 6.78 N Y Y Y CL TIMBER TRAILS 10A 7.05 CPL Y Y Y PINE HILLS NORTH 11A 42.20 CPL Y Y Y Y VALLEY VIEW 12A 8.86 UN WHITE OAKS 13A 9.24 UN BIRCH RIDGE 19B 11.21 UN COUNTRY OAKS 20B 1.10 M Y Y FOREST MEADOWS 21B 6.63 N Y Y OAK HOLLOW 23B 5.89 UN OAKVIEW 24B 1.04 M Y WOODLAND CROSSINGS 25B 5.21 M Y Y Y WOODLAND MEADOWS 26B 0.98 M Y MAPLE VIEW PARK 28B 0.60 M Y Y Y 138TH AVE. 29C 0.40 M Y CREEKRIDGE 30C 2.76 UM CROOKED LAKE BOAT LANDING 31C 2.51 SUP Y BL DEHN'S 32C 2.32 UM GREEN ACRES 33C 1.08 N Y Y HIDDEN CREEK NORTH 34C 8.41 CPL Y Y Y Y Y HIDDEN CREEK SOUTH 35C 0,42 M Y KELSEY ROUND LAKE 36C 152.56 CPA Y MEADOWOOD NORTH 37C 0.58 M Y Y MEADOWOOD SOUTH 38C 0.34 UM MEADOWS OF ROUND LAKE 39C 0.37 M Y NORTH WOODS EAST 40C 2.12 N Y Y NORTH WOODS WEST 41C 3.81 N T PLEASANT OAKS 42C 20.29 M I Y RIVER TRAILS 43C 12.85 ROSE 44C 4.97 Y Y Y ROUND LAKE BOAT LANDING 45C 3.51 BL STROOTMAN 46C 11.37 FN Y Y Y CL TERRACE 47C 7.33 Y= Y Y Y Y WILD IRIS 48C 11.73 Y Y Y Y CROOKED LAKE WARMING HOUSE & RINK 49C 0.74 Y ANDOVER LIONS 59D 19.04 N Y Y Y ANDOVER STATION NORTH 60D 22.16 CPL Y Y Y` BUNKER HILL REGIONAL (COUNTY) 61D 558.15 CNTY CHESTERTON COMMONS 62D 0.61 M Y CITY CAMPUS OUTDOOR HOCKEY COMPLEX 63D 2.52 CPL Y CITY HALL PARK COMPLEX #1 /PURPLE PARK 64D 6.70 N Y Y Y COON CREEK PARKITOM ANDERSON TRAIL 65D 44.09 L Y CREEK VIEW CROSSING 66D 0.63 M Y Y Y EVELAND FIELDS 67D 7.01 CPL Y HARTFIEL'S 68D 1.59 UM HICKORY MEADOWS 69D 0.77 M Y HIDDEN CREEK EAST 70D 2.76 N Y Y HILLS OF BUNKER LAKE WEST 71D 6.76 N Y Y LANDLOCKED 72D 2.15 UN MOORES ESTATES 73D 0.76 UM NORDEEN'S 74D 0.85 M Y Y OAK BLUFF 75D 3.79 N Y Y PRAIRIE KNOLL 76D 19.38 CPL Y Y Y Y Y Y' RED OAKS EAST 77D 3.55 UM RED OAKS WEST 78D 2.96 M Y Y REDWOOD 79D 5.82 UN SHADOWBROOK EAST 80D 15.03 CPL Y. Y Y SHADOWBROOKWEST 81D 1 10.38 L SHADY KNOLL 82D 1.52 M Y Y SOPHIES 83D 0.78 M Y. Y Y SUNSHINE 84D 38.65 CPL Y` Y Y Y Y SB Y THE OAKS 85D 1.33 M Y WOODLAND ESTATES 86D 0.26 M Y MARTIN'S MEADOWS PRESERVE 7A 42.03 PRE Y NORTH WOODS PRESERVE 22B 20.62 PRE Y DALSKE WOODLANDS PRESERVE 27B 39.45 PRE MAPLE VIEW PRESERVE 28B 42.59 PRE Y updated: December 2017 file location: H:IGISDATAIPARKSIDATABASE1Parks Invenlory.XLS KEY: CPA - Community Park CNTY - County Park CPL - Community Playfield M - Mini Park U - Undeveloped N - Neighborhood Park PRE - Preserve L - Linear Park SUP - Special Use Park Trail locations are shown on the map. Figure 5.3 WII IpMFLL,N'ii: =. _ NIIRLNMYf ' � —, WIUf14FM n:E, I Lf1.EM nn:n �a 1 I SUGAR HILLS REGIONAL TRAIL ♦ I, Rum River North Martin- Island- �- - COUNTY PARK �eiux ufe4x '------ -Li•nwood Lakes I w4 .'('"'"( REGION L PARK NORTH ANOKA COUNTY RE_GI_ON_A_L TRAIL - - _ A�W WA Lake George _ 1 REGIONAL PARK 1 � , 1 � •I ------ .u, Sandhill Crane Coon Lake - - - - - _ - •'" " " ^ ° -"'"' NATURAL AREA COUNTY {L4RK uuur�xr,an Cedar Creek Rum_ River Central' CONSERVATION AREA -- ! REGIONAL PARK 1 � 1 I � ZIJ 1 GAS _ �a,tt - lllr (ul.K aatr v. IJ YIa WNA:i�IIEY I.G ' W;s Zlo Columbus Lake CONSERVATION AREA � rGIZ QI I Mississipo West ° ;W I� R IONA P 1 - �� Qr_ CENTRAL ANOKA COUNTY REGIONAL TRAIL - - � - - '`� Rum River South Rice Creek I Bunker Hills Chain of Lakes _ i1 ASS COUNTY PARK REGIONAL PARK PARK RESERVE RFO% Nq�TRq /! Coon Rapids I REGIONAL PARK LEGEND - REGIONALTRAILS - - - - - PROPOSED REGIONAL TRAILS - COUNTY AND REGIONAL PARKS CONSERVATION AREAS STATE WILDLIFE MANAGEMENT AREAS LAKES AND RIVERS COUNTY PARK Islands of Peace COUNTY PARK REGIONAL CREEK BUNKERICHAIN OF L/ 4L TRAIL REGIONAL TRAIL CREEK SRAIL ONAL Locke COUNTY PARK Kordiak COUNTY PARK I o I � NORTH TRAIL y Table 5 Classification System for Local and Regional Park Facilities Use Service Area Size Site Attributes � Site Location 7LocalFacffities Specialized facilities that May be publicly or serve a concentrated privately owned Mini -park or limited population or Less than 1/4 < 1 acre and/or incorporated specific group such as mile radius into a development tots or senior citizens. site, such as apartment, Area for intense 1/4 to 1/z mile Physical recreational activities radius to serve Proximity to Neighborhood such as field games, court a population eorah ggpy elementary schools park/playground games, crafts, apparatus of 4,000 — < 25 acres suited for or residential area, skating, and 5,000 (one intense neighborhoods. neighborhoods. neighborhood centers. neighborhood) Area for intense recreational facilities such 3 - 5 Physical Proximity to Community as athletic fields and neighborhoods 25-50 geography secondary schools playfield swimming pools; could or one acres suited for intense and other public include a neighborhood community development, facilities. use. Area of natural or ornamental quality for 3 - 5 Affords natural outdoor recreation such neighborhoods 25-100 features with Proximity to Community ark p as walkin viewin g' g' varied physical community facilities sitting, picnicking; could or one acres geographic and resources. have some field and court community interest. games. Area of natural or ornamental quality for Affords natural Proximity to outdoor recreation such 25-100 features with community facilities County park as walking, viewing, County varied physical and resources sitting, picnicking; could acres geographic and/or where have some field and court interest. resource occurs. games. Table 5 continued. Classification System for Local and Regional Park Facilities Component Site Local Facilities Area of natural quality such as watercourses Natural and wetlands that are preserved for resources environmental or Municipality, Variable, that merit Conservancy aesthetic benefits to township, based on preservation Where resource lands the community county extent of and that would occurs. and /or because of the resources. be negatively negative environmental affected by or economic effects of development. development in them. On- or off -road Where needed to trails that may link neighborhoods Area developed for one Contained or may not to components of or more varying modes A neighborhood within one city traverse scenic the local or regional Local linear parks, of recreational travel or several or township. areas while recreation system trail, corridors and such as hiking, biking, neighborhoods Width and assuring the and/or community parkways snowmobiling, horseback in a city or length trail treadway facilities such as riding, cross - country skiing, canoeing and township minimums vary has no adverse schools, libraries, commercial driving. by locality. effect on areas and to the natural link to adjacent resource base. municipalities. Often found adjacent to major On- or off -road roadways within Area developed for one trails that may the county. Other or more varying modes Traverses or may not locations where County linear of recreational travel Several one or more traverse scenic needed to link cities parks, trail, such as hiking, biking, cities and /or municipalities. areas while to components of corridors and snowmobiling, horseback townships in a Width and assuring the the local or regional parkways riding, cross - country county length trail treadway recreation system skiing, canoeing and minimums vary has no adverse and/or community driving. by county. effect on facilities such as the natural schools, libraries, resource base. commercial areas and to link to adjacent counties. Regional Facilities Area of natural or ornamental quality for Complete nature- oriented outdoor 200-500 natural setting Where natural Regional park recreation such as 3-5 communities acres (100 contiguous to water bodies or resource occurs - p icnickin g, boatin g, minimum) particularly water. fishing, swimming, watercourses camping and trail uses. where possible. 4able.5. oomttinue : Classification System for Local and Regional Park Facilities Component Area of natural quality for nature- oriented outdoor recreation such as viewing and studying Regional park nature, wildlife habitat, reserve conservation, swimming, picnicking, hiking, boating, camping and trail uses. a County, multi- county area Size 1000+ acres; sufficient area to encompass the resource envisioned for preservation. Attributes Site Location Diversity of unique resources, such as topography, Where natural resource occurs. lakes, streams, marshes, flora, fauna. When feasible, Sufficient off -road trails corridor width that utilize to protect human made natural and/or natural Area developed for resources and linear resources Preferably adjacent one or more varying can safely such as utility to high - quality modes of nonmotorized accommodate corridors, natural areas. Regional recreational travel The entire trail use. railroad and The trail treadway destination trail such as hiking, biking, metropolitan Sufficient highway rights should be placed horseback riding, cross- region length of way, stream / where it has no country skiing, and it destination river valleys, or adverse impact on canoeing. itself, or to at the edges of the natural resource forest or prairie. base. serve as a On -road trails link between are acceptable regional parks when off -road system units. trails are not feasible. When feasible, off -road trails Linkages between that utilize components of Sufficient human made the regional parks corridor width and/or natural system. When Area developed for to protect linear resources feasible, linking one or more varying natural such as utility corridors, trails should modes of nonmotorized The entire resources and railroad and attempt to connect Regional linking recreational travel metropolitan can safely highway rights to population, trail such as hiking, biking, region accommodate of way, stream / economic and horseback riding, cross- trail use. river valleys , or social centers along country skiing, and Sufficient at the edges of its route. The trail canoeing. length to link forest oprairie. r pr treadway should be regional parks On -road trails placed where it has system units. are acceptable no adverse impact when off -road on the natural trails are not resource base. feasible. Valle 5 continued. Classification System for Local and Regional Park Facilities Regional Facilities Area that preserves, maintains, and provides specialized or single - purpose recreational activities, such as nature center, marina, zoo, conservatory, arboretum, display gardens, hunter training Specific Appropriate Where most Special recreation P education facilities, Regional- standard to particular advantageous for the special feature downhill ski area, sites of metropolitan applicable special recreation feature historic or archeological area to desired recreation and the overall park significance, and bridging feature. feature. facilities. Bridging system. facilities are specialized or single - purpose facilities that are intended to attract and introduce new outdoor recreation users to the Regional Parks System. iti'DOVER` 2018 Comprehensive Plan Update National Recreation and Parks Association provide guidelines for such development. The City has used these guidelines in the preparation of a Park Study with community input. This document evaluates the present park system and facilities and uses growth projections from the Land Use Plan to determine the steps necessary to complete the park system. The Park Study is updated regularly and determines not only community park needs, but also establishes the annual park dedication fees that pay for the needed park improvements. The park dedication fees are based on a combination of needs from all new development, including residential, commercial and industrial. Additionally, the city maintains a detailed list of park facilities including their type, age and expected life. This list aids routine maintenance of facilities and is used to determine the types of facilities and improvements that need to be included in the Capital Improvement Plan. Open Space Land for preservation of open space has been purchased (utilizing an approved bond referendum) to protect natural areas from development, as well as to protect water and air quality and to preserve wildlife habitat. The City has worked cooperatively with a variety of resource protection organizations to enhance natural areas within the existing park system and open space properties and to protect floodplain and wetlands. The City's Open Space Advisory Commission is responsible for evaluating the enhancement and protection of the open space property and providing recommendations to the City Council to develop preservation recommendations. The Commission, in cooperation with the Anoka Conservation District, will continue on an as needed basis prepare a natural resource inventory as a basis for these recommendations. Open Space Evaluation and Site Selection Criteria If there are future opportunities in acquiring open space property, the following criteria are used to properly evaluate sites for open space preservation. The City of Andover will evaluate sites for open space preservation opportunities based on the following criteria: 1. The area provides an opportunity to protect and preserve significant local natural resources, including: a. Sensitive groundwater areas b. Natural hydrological systems c. Native plant communities d. Buffer areas adjacent to lakes, streams and wetlands e. Buffer areas adjacent to upland natural plant and animal communities f. Lands important as wildlife or corridors g. Threatened or endangered species of plants or animals h. Other notable features, including historical, educational, archaeological, aesthetic, and other features 7 1 1 i 1� f ljOVl; _. 2018 Comprehensive Plan Update 2. The area to be protected is sufficient in size to preserve and enhance natural resources. 3. The area presents an opportunity to protect significant natural resources that would otherwise be negatively affected by development, land use change or negligence. 4. The area provides opportunities for passive recreation and observation of the natural environment. 5. The area provides views of the natural environment along transportation corridors including roads and trails. 6. Other factors may be considered, including the amount of similar resources that exist, the location of the area, the amount of funding available, and others. The Open Space Advisory Commission will establish an objective system for recommending selection of sites. Park Land Site Selection Criteria The City has established criteria to evaluate sites for their potential to fulfill the needs identified by the plans and studies described earlier in this chapter. The following criteria are used to properly evaluate sites for the location of parks, recreation facilities. 1. The area is in close proximity to particular natural resources, such as lakes, rivers and other unique features. 2. The area is sufficient in size to allow the user to experience the natural resource and enjoy compatible recreation activities without degrading the natural resource or the visitor's experience. 3. The area is suitable for recreation opportunities that complement those provided by other city parks and county and regional agencies. 4. The area is geographically located to fulfill and not duplicate the type of park and facilities needed to serve the present needs of residents and the needs of the long range projected population in the service area. 5. The area is located where it will be easily accessible. 6. The area is physically suitable for types of facilities that are needed in the service area. 7. The Area has sufficient size and flexibility to provide a variety of recreation opportunities and the capacity to be adapted to the changing needs of residents in the future. AN D6 Y 1' f� NDOVE F 2018 Comprehensive Plan 8. The area can provide linkage to the trail system, open space corridors or other parks. Implementation The Park Study summarizes the types of parks and facilities that are needed to complete the park system. The park facilities maintenance list and policies track the condition and useful life of the existing facilities. These documents are used to determine the improvements that need to be included in the City's Capital Improvement Plan. As described earlier in this chapter, the Park and Recreation Commission and City Council make decisions about the location of new parks based on needs identified in the Park Study goals, objectives and policies of this plan and the selection criteria established in this chapter. These goals will be implemented based on overall public policy and finance considerations. Acquisition of Parks and Open Space To assure protection and availability of public land, the City of Andover shall utilize various methods of acquisition, including but not limited to: 1. Park dedication 2. City purchase 3. County, regional, state or federal funding 4. Conservation easements 5. Purchase or transfer of development rights 6. Assistance and /or cost - sharing with other agencies 7. Donations /bequests 8. Actions by conservation organizations and foundations 9. Tax forfeited land 9 ANL66W^ 1685 CROSSTOWN BOULEVARD N.W. • ANDOVER, MINNESOTA 55304 • (763) 755 -5100 FAX (763) 755 -8923 • WWW.ANDOVERMN.GOV TO: Planning and Zoning Commission CC: David D. Berkowitz, Director of Public Works /City Engineer FROM: Jason J. Law, Assistant City Engineer SUBJECT: 2. Draft Wastewater and Comprehensive Sewer Plan DATE: June 12, 2018 INTRODUCTION The Planning and Zoning Commission is requested to review the draft Wastewater and Comprehensive Sewer Plan chapter of the City Comprehensive Plan, DISCUSSION Attached is a draft copy of the Wastewater and Comprehensive Sewer Plan chapter. This chapter addresses rules and regulations regarding the City's wastewater system, which includes City owned and operated sanitary sewer systems and privately owned Individual Sewage Treatment System's (ISTS, or septic systems). The Engineering Department prepared and maintains models of the City's sanitary sewer system. These models track the capacity of each sewer line in the City and, also help determine when necessary improvements to the system related to capacity issues are necessary, when possible. ACTION REQUIRED The Planning and Zoning Commission is requested to review the draft Wastewater and Comprehensive Sewer Plan chapter of the City Comprehensive Plan. Respectfully submitted, ason J. Law, P.E. Attachment: Wastewater and Comprehensive Sewer Plan \'DOVI;IZ 2018 Comprehensive Plan Update Chapter Four: Wastewater and Comprehensive Sewer Plan M � r r o f NDOVE _ '3omprehensive Plan Update WASTEWATER AND COMPREHENSIVE SEWER PLAN The Metropolitan Urban Service Area (MUSA) boundary in general bisects Andover into a northern and southern portion. The southern portion of the City is served by municipal sewer. The northern portion of the City has individual sewage treatment systems (ISTS). Sewer flow from the City of Andover is treated by the Metropolitan Council through the Metropolitan Disposal System (MDS), specifically by the Metropolitan Waste Water Treatment Plant (WWTP) in St. Paul. A. CURRENT AND PROJECTED POPULATION / SEWERED RESIDENCES The City data as of May 1, 2016 shows that the current population of Andover is 32,335. Approximately 22,250 persons (68.8 %) are currently served by municipal sewer. The remaining 10,085 persons (31.2 %) reside in the rural areas of the City or reside within the MUSA and are still served by septic systems. It is anticipated that residences within the MUSA served by private systems will ultimately connect to the municipal sewer system as utilities are extended to serve new adjacent developments. The projected population of Andover in 2040 is 41,900. It is expected that 31,300 persons (74.7 %) will be served by municipal sewer at that time. The remaining 10,600 persons (25.3%) will reside outside of the MUSA boundary, or may still be living within the MUSA and will not yet be connected to municipal sewer. Table 4.1 below presents the population, household, and employment forecasts for the City for 2016 (most current estimate), 2020, 2030 and 2040. Table 4.1 Population, Household and Employment Forecasts B. CAPACITY AND DESIGN OF THE EXISTING SYSTEM The vast majority of properties serviced by municipal sewer in Andover flow into the Council Interceptor MSB 7035 (Coon Rapids Interceptor), a 36" trunk line that is part of the regional system maintained by the Metropolitan Council. Approximately 110 connections in the southeast comer of the City as well as the Anoka County Public Safety Campus flow south into lateral systems in Coon Rapids, ultimately flowing into the Coon Rapids Interceptor at Crooked Lake Boulevard. These 110 inter- community 2016 2020 2030 2040 Total Population 32,335 34,00o 38 200 41,900 Sewered 22,250 23,400 26,800 31,300 Unsewered 10,085 10,600 11,400 10,600 Total Households 10,391 11,400 13,500 15,400 Sewered 7,175 7,800 9,400 11,400 Unsewered 3,216 3,600 4,100 4,000 Total Em to ment 5 100 5X0 5 800 6-12-0-0 Sewered 3,700 3,900 4,200 4,500 Unsewered 1,400 1,500 1,600 1 1,700 B. CAPACITY AND DESIGN OF THE EXISTING SYSTEM The vast majority of properties serviced by municipal sewer in Andover flow into the Council Interceptor MSB 7035 (Coon Rapids Interceptor), a 36" trunk line that is part of the regional system maintained by the Metropolitan Council. Approximately 110 connections in the southeast comer of the City as well as the Anoka County Public Safety Campus flow south into lateral systems in Coon Rapids, ultimately flowing into the Coon Rapids Interceptor at Crooked Lake Boulevard. These 110 inter- community L' I f 1 11 1 NDOVE 3omprehensive Plan Update connections are depicted in Figure 4.1 in the Appendix. The existing sewer system in Andover is operating within the design capacity of the lines and lift stations (no surcharging) based upon currently constructed homes. Planned improvements to the system will be implemented in the next one to two years to upgrade lift stations and bypass trunk lines approaching capacity (discussed further below) once all lots that have been approved through preliminary plats have been built upon. For design purposes, the pipes and lift stations are assumed to be at capacity when they reach 95% of their theoretical peak flow. Currently there are nine lift stations in the City. A detailed analysis of the existing system was completed in 2007 and updated in 2018. The City has divided the existing sanitary sewer system into eight major trunk systems. Each trunk system was analyzed based upon current and ultimate anticipated connections, and existing slope and size. A map of the existing sewer system with tributary areas is included in the Appendix as Figure 4.2. Table 4.2 provides a summary of flows and percent of peak capacities of each downstream trunk line in each tributary area, the limiting pipes in the area, and lift stations. Table 4.2 Existing Trunk Line Sewer Flows and Capacities (May 2018) Trunk Line Size Slope Peak Capacity (MGD) (1) Exist. Peak Flow (MGD) (2) % of Peak Capacity(1) Bluebird Trunk -North 10" PVC 0.28% 0.93 0.80 86.3% Bluebird Trunk -North 12" PVC 0.22% 1.33 1.02 76.1% Bluebird Trunk -South 12" RCP 0.22% 1.11 1.14 102.2%(3) Bluebird Trunk -South 18" RCP 0.12% 2.40 1.52 63.5% Pinewood Trunk 18" PVC 0.12% 2.91 0.93 32.1% Coon Creek Trunk 24" PVC 0.06% 4.43 3.35 75.6% Crosstown Blvd Trunk 24" RCP 0.08% 4.26 3.90 91.5% Bunker Lake Trunk -West 24" RCP 0.08% 4.26 1.33 31.2% Bunker Lake Trunk -East 30" RCP 0.20% 12.21 4.43 36.3% Crooked Lake Blvd Trunk 36" RCP 0.05% 9.93 5-.45 54.9% Lift Station 41 387 GPM 4" DIP 0.50 0.14 27.7% Lift Station #2 180 GPM 6" DIP 0.25 0.22 88.5% Lift Station #3 470 GPM 6" DIP 0.64 0.36 55.9% Lift Station #4 486 GPM 6" PVC 0.71 Lift Station #5 181 GPM 6" DIP 0.25 0.04 16.0% Lift Station #6 106 GPM 4" PVC 0.15 0.11 75.7% Lift Station #7 90 GPM 4" DIP 0.12 0.02 12.4% Lift Station #8 105 GPM 4" DIP 0.14 0.08 57.0% Lift Station #9 100 GPM 4" DIP 0.16 (1)Based upon 95% of theoretical maximum. (2)Assuming all lots currently approved through preliminary plats are built upon. (3) Yellow Pine Lift Station Bypass will alleviate this pipe in 2019. \'DOV)✓A3omprehensive Plan Update C. CAPACITY AND PLANS FOR FUTURE SYSTEM The MCES has allocated 4.0 MGD of sewer flow in the Coon Rapids Interceptor for the City of Andover. The average projected sewer flow for the City in 2040 is 2.72 million gallons per day (MGD), with a peak of 7.35 MGD. The ultimate average projected sewer flow for the City is 2.93 MGD, with a peak of 7.62 MGD. This ultimate flow would include 100% build out within the MUSA boundary, including connection of all parcels within the current MUSA with septic systems, potential redevelopment within the MUSA, and the potential for some fringe areas adjacent to the MUSA being served at a future date (areas just north and east or the Rural Reserve as shown in Figure 4.3). These areas would be looked at in future detail for potential service when the Rural Reserve develops. Table 4.3 provides a summary of the anticipated average and peak sewer flow rates generated by the City of Andover in 5 -year increments up to the year 2040. These flow rates are consistent with population, household, and employment projections from the System Statement and 2040 Water Resources Policy Plan. Projected flow rates were calculated by multiplying the projected households by 225 gallons per unit per day. Based upon actual sewer flow rates from the Metropolitan Council at meter M218 for June 2006 — June 2007, and the actual number of sewer connections during that timeframe, the average flow per connection for Andover was 207 gallons per unit per day. Staff discussions with MCES personnel at that time indicated that the average flow per unit for the metro area is approximately 218 gallons per unit per day. City staff chose to use a value of 225 gallons per unit per day for these calculations to be somewhat conservative and to allow for variation in flow and this is the basis of our models. For commercial / industrial / institutional flows, the number of employees in the sewered portion of the City was multiplied by an assumed flow rate of 35 gallons per employee per day. This rate would include flow from restaurants, schools, businesses, car washes, etc. This flow rate would include flow from employees as well as students, patrons, and customers of these establishments. 4 C ry r ND O 2018 Comprehensive Plan Update Table 4.3 Projected Sewer Flow in 5 -Year Increments 2016 2020 2025 2030 2035 2040 Pop. Avg. Flow Peak Flow Pop. Avg. Flow Peak Flow Pop. Avg. Flow Peak Flow Pop. Avg. Flow Peak Flow Pop. Avg. Flow Peak Flow Pop. Avg. Flow Peak Flow MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD MGD otal Pop. 32,335 34,000 36,100 38,200 40,050 41,900 Sewered 22,250 23,400 25,100 26,800 1 29,050 31,300 Unsewered 10,085 10,600 11,000 11,400 11,000 1 10,600 Total Households 10,391 12,450 13,500 14,450 15,400 Sewered 7,175 1.61 1.76 8,600 1.94 9,400 2.12 10,400 2.34 11,400 2.57 Unsewered 3,216 3,850 4,100 4,050 4,000 Total Employment 5,100 5,400 5,600 5,800 6,000 6,200 Sewered 3,700 0.13 3,900 0.14 4,050 0.14 4,200 0.15 4,350 0.15 4,500 0.16 1,400 1,500 1,550 1,600 1,650 1,700 VGDUnsewere wer Flow 1.74 5.06 1.89 5.49 2.08 5.81 2.26 6.33 2.49 6.73 2.72 7.35 NDOVEA 2018 Comprehensive Plan Update To accommodate the projected sewer flows in the City, there are improvements that will need to be made to the existing system. Three major improvements have been identified that will be necessary to handle the anticipated growth in the City. Each improvement is discussed in further detail in the following sections. No additional connections directly to the Metropolitan Disposal System are planned in the City. Yellow Pine Lift Station Improvements to the Yellow Pine Lift Station would include construction of a bypass lift station for the Bluebird North Trunk Line located at Yellow Pine Street NW and Crosstown Boulevard. This improvement would divert all of the existing flow in the Bluebird Trunk north of Crosstown Boulevard west to the Pinewood Trunk Line. This improvement will allow increased capacity for development in the Bluebird South Trunk Line, specifically for the areas east of Yellow Pine Street, south of Crosstown Boulevard, north of Andover Boulevard, and extending to the eastern City limits. The manhole and wet well for the Yellow Pine lift station were constructed in 2005. The pumps, controls, and force main necessary to complete the improvements will be constructed in sequence with development east of the Bluebird South Trunk Line. Funding for this improvement would come from the City's Trunk Sewer Fund. The improvements to put the Yellow Pine Lift Station on -line are planned to be constructed in 2019. Coon Creek Trunk Sewer Line Diversion The second major improvement project would include diverting a portion of the flow in the Coon Creek Trunk Line into the Bunker Lake East Trunk Line. A flow diverter would be constructed along the Coon Creek Trunk Line at Hanson Boulevard, diverting a portion of the flow south along Hanson Boulevard to Jay Street (Andover Station North) and ultimately into the Bunker Lake East Trunk Line. This improvement would eliminate potential surcharging of the Crosstown Boulevard Trunk Line as development progresses. This improvement will be completed once upstream development increases flows to near capacity in the Crosstown Trunk Line. Funding for this improvement would come from the City's Trunk Sewer Fund. The trunk lines in Crosstown Boulevard are at approximately 91.5% of capacity. It is anticipated that this improvement will be completed within the next five years. Rural Reserve Trunk Sewer Line Development of the area referred to as the Rural Reserve will require extension of a new sewer trunk line. This trunk line would connect to the existing Crooked Lake Boulevard Trunk system at Bunker Lake Boulevard and Crooked Lake Boulevard. The trunk line will generally extend north from Bunker Lake Boulevard, following Coon Creek up to South Coon Creek Drive, then extend north through the center of the Rural Reserve up to 161" Avenue. There is sufficient grade for this system to be a gravity system, however, several lift stations may be constructed to minimize impacts of construction through existing neighborhoods between South Coon Creek Drive and Bunker Lake Boulevard and to minimize the required depth of a gravity system. The trunk line will be designed and constructed once development of the Rural Reserve is imminent. Funding for this trunk line improvement would be paid for through area and connection fees for all 0 1VDOVER 2018 Comprehensive Plan Update parcels within the Rural Reserve. Refer to Figure 4.3 for a map of the proposed sewer system with the aforementioned trunk improvements and tributary areas. D. PRIVATELY OWNED TREATMENT FACITILITIES The northern portion of the City of Andover is located outside of the MUSA boundary. In 2016, there were approximately 3,216 residences in the City that had Individual Sewage Treatment Systems (ISTS). By 2040 it is expected that approximately 4,000 homes will be served by ISTS's. While growth outside of the WSA is expected to add residences with new ISTS's, it is also anticipated that existing areas within the MUSA currently without municipal sewer service will be added to the system. Title 10, Chapter 4 of the Andover City Code regulates Individual Sewage Treatment Systems and adopts Minnesota Rules Chapters 7080 and 7081. A copy of this City Code is included in the Appendix as Figure 4.5. The City Code requires the following items be completed by owners of ISTS's: • Inspect system and submit a maintenance report to the City every two years. • Pump systems as often as needed, but at a minimum, every three years. • Owners must upgrade, replace, or discontinue use of system within six months if the system is found to be non - compliant. • Systems deemed to be a public nuisance (effluent leaking, noxious odors, etc). must be abated within 30 days. • Those persons within the City designing, evaluating, installing, maintaining, or pumping individual sewage treatment systems must be certified by the Minnesota Pollution Control Agency (MPCA) as an Individual Sewage Treatment (ISTS) Professional. The City's Building Official is responsible for ensuring that all systems are in compliance with City Code. The City of Andover Building Department maintains construction, installation, inspection and pumping records for all individual sewage treatment systems in the City. Per City Code, if owner's fail to make necessary repairs or complete pumping and inspections as required, the City has the right to contract out such work and assess the costs to the property. The City does not currently allow use of communal, or shared treatment system, or experimental or alternate systems. However, the City may consider and allow them on a case -by -case basis in the future. A copy of the City's National Pollutant Discharge Elimination System (NPDES) permit and State Disposal System (SDS) permit is included in the Appendix as Figure 4.6. A NDOVE _ 2018 Comprehensive Plan Update E. INFLOW AND INFILTRATION The City of Andover recognizes that inflow and infiltration (I/1) is a problem on a metro - wide scale that could limit the sewer capacity available for growth. Excessive amounts of I/I also increase fees billed to the cities by the MCES for treatment of wastewater. It is in the best interest of the City to minimize the I/I entering the sanitary sewer system to reduce costs and maintain capacity in the system for future growth. In general, the City of Andover does not have a significant 1/1 problem. In conversations with MCES personnel and in correlating the average flow and peak flow metering data from Meter 218 with large rainfall events, it is evident that the I/I in Andover is minor. This can be attributed to a relatively new sanitary sewer system, the presence of sand deposits throughout the City, and the implementation of standard construction and inspection practices for the system. The following Objectives, Polices and Strategies shall be followed by the City of Andover to ensure that the City maintains the integrity of the sewer system and limit potential sources of I/I. Objective: Maintain the integrity of the Andover sanitary sewer system by preventing and minimizing potential sources of I/I. Policies: The City of Andover has implemented the following policies to minimize I/I in new and existing sewer systems: • City inspection of all publicly installed sewer systems to verify compliance with City Standards. • Adoption of Construction Engineer Association of America (CEAM) Standard Utility Specifications for pressure testing of lines between manholes. • Video inspection of all newly constructed sewer lines before project acceptance. • Jet clean and vacuum 20% of existing sewer lines annually. • Video inspection of existing sewer lines on an annual basis to the extents practicable. • Require solid manholes covers with concealed pick holes. • Periodic visual inspection of manholes. Make repairs as necessary. • Do not allow discharge of residential drainage systems (sump pumps, drain tiles, roof drains, etc.) into the sanitary sewer system. • Require disconnection of any potential existing residential drainage systems that are connected to the sanitary sewer system. Strategies: The following strategies are used by the City of Andover to achieve the aforementioned objective and policies: • Ensure inspectors for utility projects have adequate knowledge and training to enforce City Standards for construction. 9 l 1 V1' �f 1' NDf OME _ 2018 Comprehensive Plan Update • Require developers of newly constructed sewer lines to submit video inspection tapes for review by City staff prior to project acceptance. • Provide funding to Public Works to annually televise and inspect existing sanitary sewer lines and make necessary repairs. • Enforce the Minnesota Plumbing Code, which prohibits discharge of drainage systems directly into the sanitary sewer system. A copy of the Minnesota Plumbing Code, Chapter 11, is included in the Appendix as Figure 4.7. • Enforce Chapter 10 -2 -4F of the City Code stating "No person shall make connection of roof downspouts, foundation drains, areaway drains, or other sources of surface runoff or ground water to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer unless such connection is approved by the City Engineer for purposes of disposal of polluted surface drainage." A copy of this section of the City Code is included in the Appendix as Figure 4.8. Implementation Plan: As previously discussed, the City of Andover does not have a problem with I/I. To ensure that problems do not occur in the future the following measures will be taken: • The City will maintain the current plan, policies and objectives to maintain the integrity of the sewer system. • Periodic and routine maintenance of the system will identify areas needing repair to limit potential I/I. Financing will come from the Trunk Sewer Fund. • The City will enforce the City Code requiring disconnection of illegal sewer connections on a complaint basis, or as identified by other means. • The City Building Inspectors will inspect newly constructed sewer service connections to verify that they comply with the Minnesota Plumbing Code. 9 VDOVIR tkL 2018 Comprehensive Plan Update WASTEWATER AND COMPREHENSIVE SEWER PLAN APPENDIX Figure 4.1: Intercommunity Connections Figure 4.2: Existing Sanitary System Figure 4.3: Proposed Sanitary System Figure 4.4: Sewer Staging Plan 2018 -2040 Figure 4.5: Andover City Code Title 10, Chapter 4: Individual Sewage Treatment Systems Figure 4.6: National Pollutant Discharge Elimination System (NPDES) and State Disposal System (SDS) permit Figure 4.7: Minnesota Plumbing Code Chapter 11, Storm Drainage Figure 4.8: Andover City Code Title 10, Chapter 2: Sewer Use and Service 10 0 ,25 250 500 veo, LEGEND QSanitary Sewer Zone with N Service from Coon Rapids 6" Gravity Sewer Main 6" Gravity Sewer Main c t ,r � o r NDOVE Incorporated 1974 z I� Comprehensive Plan Figure 4.1 Inter - Community Connections Anoka County Public Safety Campus .46 I T Y 0 1. NDOVERAk vir-T 'is 4 Figure 4.2 Existing _j Sanitary System _7 "771' KMI. 20 L U uff3v 40 6 _4 a V.; 1":� t C' 7 _I . -C X 21 L 101 22 Jr� oi�24 CS ors C C 0 50 [3 l 01 0 900 1,800 3,600 Feet 4W 53 n C C. I 10 25 0, 0 cl, P-1 13 A 38 33' �C 0 ROSS C jgcAlK, z:j ON-, AlLilli Ilk �m A 2 71 32 'TF VINK (EAST) 72 . C 'AMME 73 LEGEND ALift Station Gravity Main Sanitary Sewer Zones .I 4" _ Bluebird Trunk (North) © Manhole #%jP 6- Bluebird Trunk (South) ONO S., Bunker Lake Trunk (West) 0%02020 MUSA 0%0101, Bunker Lake Trunk (East) t�p Parcels 12" Coon Crook Trunk OvIlep 15,. Crooked Lake Blvd Trunk Force Main Crosstown Trunk Unknown 0%018-- Pinewood Trunk 0%0 4" ON020" Rural Reserve Trunk ON& G 0%1021" To Coon Rapids 0%024" 0%030" Map Date: 36" June 2018 4W 53 n C C. I 10 25 0, 0 cl, P-1 13 A 38 33' �C 0 ROSS C jgcAlK, z:j ON-, AlLilli Ilk �m A 2 71 32 'TF VINK (EAST) 72 . C 'AMME 73 C I T of 617 R* igure 4.3 Proposed t Sanitary System T T-- iij A F F f R�X=20 Ch 40 21 T 7 2y ;' y I - ; r` r 2 L 24 T�. 0 2 -T- t 50 25 ul OU 1 7 2 1 1, 13 z. k 2 ,: � b T%1- 0 900 1.800 3,600 1 - . I w — - Feet All 53 LEGEND 4 Gravity Main Proposed Sanitary Sewer Zones A Lift Station 4" Bluebird Trunk (North) e Manhole 0%06" Bluebird Trunk (South) 4 4%p 8" Bunker Lake Trunk (West) 10%&2020 MUSA 0%010" Bunker Lake Trunk (East) 6 12" Coon Creek Trunk -BUNK TRU%(WES R�Ef NK (EAS I Cs Parcels 0%015" Crooked Lake Blvd Trunk Force Main 6%_�116-- �p Crosstown Trunk 0%018-- Pinewood Trunk Unknown ------- t 7 O%p20" Rural Reserve Trunk S%p 4" 0%021" Rural Reserve Area - Non-MCES 0%0 6" O%p24" To Coon Rapids Proposed Sanitary 0%030" Map Date: It* i C�tW- June 2018 72 2 m" 3' JI 71 32) V13P C L II 10 4 j� V 4 y� 9k � _ R �/ � � � ,3 � y5 x�, 3 � C z � t - �4 � � � �'' i f• h > � Y t � 315 � u 1 C z i � �. 4 � S � � ' � � � T � � - $ q < - � � � � F E v R_ h h- e 3 ^= 3 S$ 4 a a 5 a .�. w .�i i s i A . A a _ _ J 4 `4' - - `l i x 3 4 r- z_ v a_ E? 8 F A&6 Y O 6V R ROUN LAKE J lj l; IBISTAlE.A' 1,10111A1 E. A71' 1ITHA{E I'll 1711711's In /' /Il i12 Alf 1 -6171 E.7r riTHAIY'. 4. )' ;TIIAIF ale I:SdP:Itfi.NF 1.OTHA'£/11' twnlAfE AT In +THAt'£�ti 10M.4I"E AII' 1s1THAE Vie' IVIHAI E IN WRI 14 F- \'Y' I6:\'['AIL \'II' 1WHA EAIe VWHA'E IN 1181:'i11"EAH" 13 ;HAI'E '11 1 117H.8'E 17, 1 V IHA1 "£. 1I 01THAM AT l upl::lf'h' AT 14.•TH.n'E %71 111,11,411.1. l:orH.;r£ ysT IJ1rHxr 'L' INTI/ 11'F Alr Pn"n.4E 18 III.ST.11'E AN" 11 0THAI'E All ,ill /1.1, F, IT I.ip/l /if'h'. AN' B!'.1'MLA"EBVIA 1141H.i1.E• 471• Wr/'.IIF An" JI'm OEAIe Akbbvt Incorporated 1974 Sewer Staging Plan Figure 4.4 The Sewer Staging Plan divides undeveloped land within the Municipal Urban Service Area into five year growth stages based primarily on the proxmimity of municipal sewer and water. The growth stages are intended to provide a reasonable estimate of urban growth to the year 2040. City of Andover - Planning Department 1685 Crosstown Blvd. NW Andover, MN 55304 (763) 755.5100 Map Date: May 2018 L E G E N D - - - - - -- MUSA Boundary -,1 2018 -2025 2025 -2030 2030 -2035 2035 -2040 Rural Reserve 0 2,500 5,000 10,0C 0 0.25 05 Fees 1.s Miles FIGURE 4.5: ANDOVER CITY CODE TITLE 10, CHAPTER 4 IN: V- 11i1:1:Z! INDIVIDUAL SEWAGE TREATMENT SYSTEMS' SECTION: 10 -4 -1: Purpose, Applicability, and Authority 10 -4 -2: General Provisions 10 -4 -3: Standards Adopted 10 -4 -4: Permits 10 -4 -5: Violations and Penalties 10 -4 -1: PURPOSE, APPLICABILITY, AND AUTHORITY: A. Purpose. It is the purpose and intent of this ordinance to establish standards for the design, location, construction, operation, and maintenance of Subsurface Sewage Treatment Systems (SSTS). B. Applicability. This ordinance shall apply to those sites or facilities which are licensed, permitted, or otherwise regulated by City ordinance. The sewer provisions of this ordinance shall also apply to any premises in the City that are not served by a sewage treatment system permitted by the Minnesota Pollution Control Agency or are located in a city or township which has not adopted a subsurface sewage treatment system ordinance. C. Authority. This ordinance is adopted pursuant to the authorization and requirements contained in Minnesota Statutes § 145A.05, 115.55 and Minnesota Administrative Rules Chapter 7082. (Ord. 221, 5 -6 -1997; amd. 2003 Code; amd. 1 -2 -07, Ord. 338; Ord. 432) 10 -4 -2: GENERAL PROVISIONS: A. Treatment Required. All sewage generated, in unsewered areas shall be treated and dispersed by an approved SSTS or a system permitted by the Minnesota Pollution Control Agency. ' See also sections 3 -3 -5, 10 -2 -3, and 13 -4-61-12 of this code. B. Administrative Policy and Procedures. The provisions of the Andover City Ordinance, Title 1, apply to the administration and enforcement of this Ordinance, unless otherwise expressly provided for in this Ordinance. C. Administration. This Ordinance shall be administered by the Andover City Building Inspections Department. The term "Department," where used in this ordinance and the Administrative Procedures Ordinance, shall mean the Andover City Building Inspections Department. D. Compliance. No person shall cause or permit the location, construction, alteration, extension, conversion, operation, or maintenance of a subsurface sewage treatment system, except in full compliance with the provisions of this ordinance. E. Conditions. Violation of any condition imposed by the City on a license, permit, or variance, shall be deemed a violation of this ordinance and subject to the penalty provisions set forth in this ordinance. F. Site Evaluation, System Design, Construction, Inspection, and Servicing. Site evaluation, and system design, construction, inspection and system servicing shall be performed by Minnesota Pollution Control Agency licensed SSTS businesses or qualified employees of local governments or persons exempt from licensing in Minn. R. 7083.0700. For lots platted after April 1, 1996, a design shall evaluate and locate space for a second soil treatment area. G. Inspection. No part of an individual sewage treatment system shall be covered until it has been inspected and approved by the Department. If any part of the system is covered before being inspected and approved as herein provided, it shall be uncovered upon the direction of the Department. The Department shall cause such inspections as are necessary to determine compliance with this ordinance. It shall be the responsibility of the permittee to notify the Department that the system is ready for inspection. If the integrity of the system is threatened by adverse weather if left open and the Department is unable to conduct an inspection, the permittee may, after receiving permission from the Department document compliance with the ordinance by photographic means that show said compliance and submit that evidence to the Department prior to final approval being sought. H. Compliance Inspection Required. A SSTS compliance inspection is required: 1. For anew or replacement SSTS. 2. When altering an existing structure to add a bedroom. 3. When a parcel having an existing system undergoes development, subdivision, or split. I. Imminent Public Health and Safety Threat; Failing System; and Surface Discharge. 1. A subsurface sewage treatment system which poses an imminent threat to public health and safety shall immediately abate the threat according to instructions by the Department and be brought into compliance with this ordinance in accordance with a schedule established by the Department, which schedule will not exceed ten (10) months. 2. A failing system, an SSTS that is not protective of groundwater, shall be brought into compliance within twenty -four months after receiving notice from the Department. 3. An SSTS discharging raw or partially treated wastewater to ground surface or surface water is prohibited unless permitted under the National Pollution Discharge Elimination System. J. Conflict Resolution. For SSTS systems regulated under this Ordinance, conflicts and other technical disputes over new construction, replacement and existing systems will be managed in accordance with the Andover City Administrative Procedures Ordinance, Title 1. K. Septic Tank Maintenance. The owner of a sewage tank, or tanks, shall regularly, but not less frequently than every three years (unless otherwise approved by the Department due to limited use), inspect the tank(s) and measure the accumulations of sludge, and scum. If the system is pumped, measurement is not needed. The owner shall remove and sanitarily dispose of septage whenever the top of the sludge layer is less than 12 inches below the bottom of the outlet baffle or the bottom of the scum layer is less than 3 inches above the bottom of the outlet baffle. Removal of septage shall include complete removal of scum and sludge. L. Non - Complying Systems. Existing systems which are non - complying, but not an imminent health or safety threat, failing, or discharging to surface, may continue in use so long as the use is not changed or expanded. If the use changes or is expanded, the non - complying elements of the existing system must be brought into compliance. M. Non - Complying Work. New individual sewage treatment system construction that is non - compliant, or other work on a system that is non - complying, must be brought into compliance with this ordinance in accordance with a schedule established by the Department, which schedule will not exceed seven days unless the Department finds extenuating circumstances. N. Change In Use. A Certificate of Compliance may be voided if, subsequent to the issuance of the certificate, the use of the premises or condition of the system has changed or been altered. O. Setback Reduction. Where conditions prevent the construction, alteration, and/or repair of an individual sewage treatment system on an existing developed parcel of real property, the Department may reduce property line and building setbacks and system sizing requirements provided said reduction does not endanger or unreasonably infringe on adjacent properties and with the concurrence of the affected properties. P. Floodplain. An SSTS shall not be located in a floodway or floodplain. Location within the flood fringe is permitted provided that the design complies with this ordinance and all of the rules and statutes incorporated by reference. Q. Class V Injection Wells. All owners of new or replacement SSTS that are considered to be Class V injection wells, as defined in the Code of Federal Regulations, title 40, part 144, are required by the Federal Government to submit SSTS inventory information to the Environmental Protection Agency. (Amd. 112107, Ord. 338; Amd. 112107, Ord. 338; Amd. 112107, Ord. 338; Ord. 221, 5 -6- 1997; amd. 2003 Code; Amd. 112107, Ord. 338) 10 -4 -3 STANDARDS ADOPTED A. Minnesota Rules Adopted. Minnesota Rules, Chapters 7080 and 7081, that are in effect on the date of passage of this ordinance, relating to subsurface sewage treatment systems, are hereby adopted by reference and made a part of this ordinance as if fully set forth herein. B. Rules Amended. The rules, adopted in Section 3.01 are amended as follows: Compliance Inspection - 15 Percent Vertical Separation Reduction. MR 7080.1500 Subp. 4D is amended to allow 15 percent reduction of vertical separation (separation distance no less than 30.6 inches) may be determined to be compliant for existing systems to account for settling and variable interpretation of soil characteristics. C. Holding Tanks. Holding tanks may be allowed for the following applications; as replacement to a failing existing system, an SSTS that poses an imminent threat to public health and safety, or for an existing lot in which a SSTS cannot feasibly be installed and the Department finds extenuating circumstances. D. System Abandonment. An SSTS, or component thereof, that is no longer intended to be used must be abandoned in accordance with the adopted standards of this Ordinance. (Ord. 432, 11/19/13) 10 -4 -4 PERMITS A. Permit Required. No person shall cause or allow the location, construction, alteration, extension, conversion, or modification of any subsurface sewage treatment system without first obtaining a permit for such work from the Department. No person shall construct, alter, extend, convert, or modify any structure which is or will utilize subsurface sewage treatment system without first obtaining a permit. 1. All work performed on an SSTS shall be done by an appropriately licensed business, qualified employees or persons exempt from licensing -I Permit applications shall be submitted by the person doing the individual subsurface sewage treatment system construction on forms provided by the Department and accompanied by required site and design data, and permit fees. 2. Permits shall only be issued to the person doing the individual sewage treatment system construction. 3. Permit applications for new and replacement SSTS shall include a management plan for the owner that includes a schedule for septic tank maintenance. A permit is not required for minor repairs or replacement of damaged or deteriorated components that do not alter the original function, change the treatment capacity, change the location of system components or otherwise change the original system's design, layout, or function. B. Operating Permit. An operating permit shall be required of all owners of new holding tanks, Type IV and V systems; MSTS and other SSTS that the Department has determined requires operational oversight. 1. Application. Application for an operating permit shall be made on a form provided by the Department. 2. Holding Tanks. The owner of holding tanks installed after the effective date of this Ordinance shall provide the Department with a copy of a contract with a licensed sewage maintenance business for monitoring and removal of holding tank contents. (Ord. 432, 11/19113) I See also sections 10 -1 -7 and 10 -2 -5 of this Title 10 -4 -5 VIOLATIONS AND PENALTIES A. Misdemeanor. Any person who fails to comply with the provisions of this ordinance may be charged with a misdemeanor and upon conviction thereof, shall be punished therefore, as provided by law. A separate offense shall be deemed committed upon each day during or on which a violation occurs or continues. B. Injunctive Relief. In the event of a violation or a threat of violation of this ordinance, the Department may institute appropriate actions or proceedings to include injunctive relief to prevent, restrain, correct or abate such violations or threatened violations; and the City Attorney may institute a civil action. C. Civil Action. In the event of a violation of this ordinance, the City may institute appropriate actions or proceedings to include injunctive relief to prevent, restrain, correct, or abate such violations, or threatened violations, and the City Attorney may institute such action. (Ord. 432, 11/19/13) FIGURE 4.6: NPDES and SIDS Permit for Andover Page 1 of 38 Permit No: MNR040000 Minnesota Pollution Control Agency GENERAL PERMIT AUTHORIZATION TO DISCHARGE STORMWATER ASSOCIATED WITH SMALL MUNICIPAL SEPARATE STORM SEWER SYSTEMS UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM /STATE DISPOSAL SYSTEM (NPDES /SDS) PERMIT PROGRAM EFFECTIVE DATE: August 1, 2013 EXPIRATION DATE: July 31, 2018 In compliance with the provisions of the federal Clean Water Act (CWA), as amended, (33 U.S.C. 1251 et seq); 40 CFR Parts 122, 123, and 124, as amended; Minnesota Statutes Chapters 115 and 116, as amended; and Minnesota Rules Chapter 7001 and 7090. This permit establishes conditions for discharging stormwater and specific other related discharges to waters of the state. This permit is required for discharges that are from small Municipal Separate Storm Sewer Systems (small MS4), as defined in this permit. Applicants who submit a complete application in accordance with the requirements of Part II of this permit, and that receive written notification of permit coverage from the Commissioner, are authorized to discharge stormwater from small MS4s under the terms and conditions of this permit. This permit shall become effective on the date identified above, and supersedes the previous general permit MNR040000, with an expiration date of May 31, 2011. 22 Signature: Date �J J Linc Stine C missioner Minnesota Pollution Control Agency If you have questions on this permit, including the specific permit requirements, permit reporting or permit compliance status, please contact the appropriate Minnesota Pollution Control Agency offices. Municipal Stormwater Program Municipal Division Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, MN 55155 -4194 Telephone: 651 - 296 -6300 or toll free in Minnesota: 800 - 657 -3864 Boldfaced terms are defined in "Definitions" in Appendix B, Page 36 wq- strm459k Table of Contents PART I. AUTHORIZATION UNDER THIS PERMIT.. A. Eligibility ............... ............................... B. Limitations on Authorization ............... C. Permit Authorization ........................... D. Transfer of Ownership or Control........ E. Issuance of Individual Permits ............. F. Rights and Responsibilities .................. PART II. APPLICATION REQUIREMENTS ..................... Page 2 of 38 Permit No: MNR040000 ...3 ............................ ..............................6 A. Application for Reauthorization ................................................................. ..............................6 B. New Permittee Applicants ......................................................................... ..............................6 C. Existing Permittee Applicants .................................................................... ..............................6 D. Stormwater Pollution Prevention Program (SWPPP) Document ............. ..............................6 PART III. STORMWATER POLLUTION PREVENTION PROGRAM ( SWPPP) ....................... ..............................9 A. Regulatory Mechanism( s) ........................................................................... ..............................9 B. Enforcement Response Procedures (ERPs) ................................................ ..............................9 C. Mapping and Inventory .............................................................................. ..............................9 D. Minimum Control Measures ( MCMs) .......................................................... .............................10 1. Public Education and Outreach ............................................................ .............................10 2. Public Participation / Involvement ......................................................... .............................11 3. Illicit Discharge Detection and Elimination .......................................... .............................12 4. Construction Site Stormwater Runoff Control ..................................... .............................13 5. Post- Construction Stormwater Management ...................................... .............................15 6. Pollution Prevention /Good Housekeeping For Municipal Operations . .............................18 E. Discharges To Impaired Waters With A United States Environmental Protection Agency (USE PA)- Approved Total Maximum Daily Load (TMDL) That Includes An Applicable Waste Load Allocation (WLA) ................................................................................ .............................21 F. Alum or Ferric Chloride Phosphorus Treatment SystemS .......................... .............................22 G. SWPPP Modification .................................................................................... .............................24 PART IV. ANNUAL SWPPP ASSESSMENT, ANNUAL REPORTING AND RECORD KEEPING .. .............................25 A. Annual SWPPP Assessment ......................................................................... .............................25 B. Annual Reporting ......................................................................................... .............................25 C. Record Keeping ............................................................................................ .............................25 D. Where to Submit ......................................................................................... .............................26 PART V. GENERAL CONDITIONS ....................................................................................... .............................27 APPENDIXA: SCHEDULES .................................................................................................. .............................29 APPENDIX B: DEFINITIONS AND ABBREVIATIONS ............................................................. .............................33 Page 3 of 38 Permit No: MNR040000 PART I. AUTHORIZATION UNDER THIS PERMIT A. Eligibility To be eligible for authorization to discharge stormwater under this permit, the applicant must be an owner and /or operator (owner /operator) of a small MS4 and meet one or more of the criteria requiring permit issuance as specified in Minn. R. 7090.1010. 1. Authorized Stormwater Discharges This permit authorizes stormwater discharges from small MS4s as defined in 40 CFR § 122.26(b)(16). 2. Authorized Non - Stormwater Discharges The following categories of non - stormwater discharges or flows are authorized under this permit to enter the permittee's small MS4 only if the permittee does not identify them as significant contributors of pollutants (i.e., illicit discharges), in which case the discharges or flows shall be addressed in the permittee's SWPPP: water line flushing, landscape irrigation, diverted stream flows, rising groundwaters, uncontaminated groundwater infiltration (as defined at 40 CFR § 35.2005(b)(20)), uncontaminated pumped groundwater, discharges from potable water sources, foundation drains, air conditioning condensation, irrigation water, springs, water from crawl space pumps, footing drains, lawn watering, individual residential car washing, flows from riparian habitats and wetlands, dechlorinated swimming pool discharges, street wash water, and discharges or flows from firefighting activities. B. Limitations on Authorization The following discharges or activities are not authorized by this permit: 1. Non - stormwater discharges, except those authorized in Part I.A.2. 2. Discharges of stormwater to the small MS4 from activities requiring a separate NPDES /SDS permit. This permit does not replace or satisfy any other permitting requirements. 3. Discharges of stormwater to the small M54 from any other entity located in the drainage area or outside the drainage area. Only the permittee's small MS4 and the portions of the storm sewer system that are under the permittee's operational control are authorized by this permit. 4. This permit does not replace or satisfy any environmental review requirements, including those under the Minnesota Environmental Policy Act (Minn. Stat. § 116D), or the National Environmental Policy Act (42 U.S.C. §§ 4321 - 4370 f). 5. This permit does not replace or satisfy any review requirements for endangered or threatened species, from new or expanded discharges that adversely impact or contribute to adverse impacts on a listed endangered or threatened species, or adversely modify a designated critical habitat. Page 4 of 38 Permit No: MNR040000 6. This permit does not replace or satisfy any review requirements for historic places or archeological sites, from new or expanded discharges which adversely affect properties listed or eligible for listing in the National Register of Historic Places or affecting known or discovered archeological sites. 7. Prohibited discharges pursuant to Minn. R. 7050.0180, subp. 3, 4, and 5. C. Permit Authorization In order for an applicant to be authorized to discharge stormwater from a small MS4 under this permit: 1. The applicant shall submit a complete application to discharge stormwater under this permit in accordance with Part II. 2. The Commissioner shall review the permit application for completeness and compliance with this permit. a. If an application is determined to be incomplete, the Commissioner will notify the applicant in writing, indicate why the application is incomplete, and request that the applicant resubmit the application. b. If an application is determined to be complete, the Commissioner shall make a preliminary determination as to whether the permit should be issued or denied in accordance with Minn. R. 7001. 3. The Commissioner shall provide public notice with the opportunity for a hearing on the preliminary determination. 4. Upon receipt of written notification of final approval of the application from the Commissioner, the applicant is authorized to discharge stormwater from the small MS4 under the terms and conditions of this permit. D. Transfer of Ownership or Control Where the ownership or significant operational control of the small MS4 changes after the submittal of an application under Part II, the new owner /operator must submit a new application in accordance with Part II. E. Issuance of Individual Permits 1. The permit applicant may request an individual permit in accordance with Minn. R. 7001.0210, subp.6, for authorization to discharge stormwater associated with a small MS4. 2. The Commissioner may require an individual permit for the permit applicant or permittee covered by a general permit, in accordance with Minn. R. 7001.0210, subp. 6. F. Rights and Responsibilities 1. The Commissioner may modify this permit or issue other permits, in accordance with Minn. R. 7001, to include more stringent effluent limitations or permit requirements that modify Page S of 38 Permit No: MNR040000 or are in addition to the MCMs in Part III.D of this permit, or both. These modifications may be based on the Commissioner's determination that such modifications are needed to protect water quality. 2. The Commissioner may designate additional small MS4s for coverage under this permit in accordance with Minn. R. 7090. The owner /operator of a small MS4 that is designated for coverage must comply with the permit requirements by the dates specified in the Commissioner's determination. Page 6 of 38 Permit No: MNR040000 PART IL APPLICATION REQUIREMENTS A. Application for Reauthorization If a permit has been issued by the Agency and the permittee holding the permit desires to continue the permitted activity beyond the expiration date of the permit, the permittee shall submit a written application for permit reissuance at least 180 days before the expiration date of the existing permit. (Minn. R. 7001.0040, subp.3). B. New Permittee Applicants To become a new permittee authorized to discharge stormwater under this permit, the owner /operator of a small MS4 shall submit an application, on a form provided by the Commissioner, in accordance with the schedule in Appendix A, Table 3, and the following requirements: 1. Submit Part 1 of the permit application (includes the permit application fee). 2. Submit Part 2 of the permit application, with the Stormwater Pollution Prevention Program (SWPPP) document completed in accordance with Part II.D. C. Existing Permittee Applicants All existing permittees seeking to continue discharging stormwater associated with a small MS4 after the effective date of this permit shall submit Part 2 of the permit application, on a form provided by the Commissioner, in accordance with the schedule in Appendix A, Table 1, with the SWPPP document completed in accordance with Part II.D. NOTE: Existing permittees were required to submit Part 1 of the permit application prior to the expiration date (May 31, 2011) of the Agency's small MS4 general permit NO.MNR040000, effective June 1, 2006, (see Part ILA above). D. Stormwater Pollution Prevention Program (SWPPP) Document All applicants shall submit a SWPPP document with Part 2 of the application form when seeking coverage under this permit. The SWPPP document shall become an enforceable part of this permit upon approval by the Commissioner. Modifications to the SWPPP document that are required or allowed by this permit (see Part III.G) shall also become enforceable provisions. The SWPPP document shall be submitted on a form provided by the Commissioner and shall include the following: 1. A description of partnerships with another regulated small MS4(s), into which the applicant has entered, in order to satisfy one or more requirements of this permit. 2. A description of all Regulatory Mechanism(s) (e.g., contract language, an ordinance, permits, standards, etc.) the applicant has developed, implemented, and enforced that satisfies the requirements of each program specified under Part III.D.3, 4, and 5. The description shall include the type(s) of Regulatory Mechanism(s) the applicant has in place at the time of application that will be used to satisfy the requirements. If the Regulatory Mechanism(s) have not been developed at the time of application (e.g., new permittee applicants), or revised to meet new requirements of this permit (e.g., existing permittee applicants); the Page 7 of 38 Permit No: MNR040000 applicant shall describe tasks and corresponding schedules necessary to satisfy the permit requirements in accordance with the schedule in Appendix A, Table 2 (existing permittee applicants), or Table 3 (new permittee applicants). 3. A description of existing Enforcement Response Procedures (ERPs) the applicant has developed and implemented that satisfy the requirements of Part 111.6.1. If the applicant has not yet developed ERPs (e.g., new permittee applicants), or existing ERPs must be updated to satisfy new requirements, the description must include tasks and corresponding schedules necessary to satisfy the permit requirements in accordance with the schedule in Appendix A, Table 2 (existing permittee applicants), or Table 3 (new permittee applicants). 4. A description of the status of the applicant's storm sewer system map and inventory as required by Part III.C. The description must indicate whether each requirement of Part III.C.11 is satisfied, and for Part III.C.2, is complete, at the time of application. For each requirement of Part III.0 that is not satisfied at the time of application, the applicant shall include tasks and corresponding schedules necessary to satisfy the mapping and inventory requirements in accordance with the schedule in Appendix A, Table 2 (existing permittee applicants), or Table 3 (new permittee applicants). S. For each Minimum Control Measure (MCM) outlined in Part III.D: a. The Best Management Practices (BMPs) the applicant will implement, or has implemented, for each MCM. b. The measurable goals for each of the BMPs identified in Part II.D.5.a, including as appropriate, the months and years in which the applicant will undertake required actions, including interim milestones and the frequency of the action, in narrative or numeric form, as appropriate. c. Name(s) of individual(s) or position titles responsible for implementing and /or coordinating each component of the MCM. 6. For each applicable Waste Load Allocation (WLA) approved prior to the effective date of this permit, the applicant shall submit the following information as part of the SWPPP document: a. TMDL project name(s) b. Numeric WLA(s), including units c. Type of WLA (i.e., categorical or individual) d. Pollutant(s) of concern e. Applicable flow data specific to each applicable WLA f. For each applicable WLA not met at the time of application, a compliance schedule is required. Compliance schedules can be developed to include multiple WI-As associated with a TMDL project and shall include: (1) Interim milestones, expressed as BMPs or progress toward implementation of BMPs to be achieved during the term of this permit (2) Dates for implementation of interim milestones (3) Strategies for continued BMP implementation beyond the term of this permit (4) Target dates the applicable WLA(s) will be achieved Page 8 of 38 Permit No: MNR040000 g. For each applicable WIA the permittee is reasonably confident is being met at the time of application, the permittee must provide the following documentation: (1) Implemented BMPs used to meet each applicable WLA (2) A narrative describing the permittee's strategy for long -term continuation of meeting each applicable WLA. 7. For the requirements of Part III.F, Alum or Ferric Chloride Phosphorus Treatment Systems, if applicable, the applicant shall submit the following: a. Geographic coordinates of the system b. Name(s) of individual(s) or position titles responsible for the operation of the system c. Information listed in Part III1.3.a(1) -(6), if the system is constructed at the time the application is submitted to the Agency d. Indicate if the system complies with the requirements of Part III.F e. If applicable, for each Part III.F requirement that the applicant's system does not comply with at the time of application, describe tasks and corresponding schedules necessary to bring the system into compliance in accordance with the schedule in Appendix A, Table 2 (existing permittee applicants), or Table 3 (new permittee applicants). Page 9 of 38 Permit No: MNR040000 PART III. STORMWATER POLLUTION PREVENTION PROGRAM (SWPPP) The permittee shall develop, implement, and enforce a SWPPP designed to reduce the discharge of pollutants from the small MS4 to the Maximum Extent Practicable (MEP), to protect water quality, and to satisfy the appropriate water quality requirements of the Clean Water Act. If the permittee enters into a partnership for purposes of meeting SWPPP requirements, the permittee maintains legal responsibility for compliance with this permit. Existing permittees shall revise their SWPPP developed under the Agency's small M54 general permit No.MNR040000 that was effective June, 1, 2006, to meet the requirements of this permit in accordance with the schedule in Appendix A, Table 2. New permittees shall develop, implement, and enforce their SWPPP in accordance with the schedule in Appendix A, Table 3. The permittee's SWPPP shall consist of the following: A. Regulatory Mechanism(s) To the extent allowable under state, tribal or local law, the permittee shall develop, implement, and enforce a Regulatory Mechanism(s) to meet the terms and conditions of Part III.D.3, 4, and 5. A Regulatory Mechanism(s) for the purposes of this permit may consist of contract language, an ordinance, permits, standards, or any other mechanism, that will be enforced by the permittee. B. Enforcement Response Procedures (ERPs) 1. The permittee shall develop and implement written ERPs to enforce and compel compliance with the Regulatory Mechanism(s) developed and implemented by the permittee in accordance with Part III.A. 2. Enforcement conducted by the permittee pursuant to the ERPs shall be documented. Documentation shall include, at a minimum, the following: a. Name of the person responsible for violating the terms and conditions of the permittee's Regulatory Mechanism(s) b. Date(s) and location(s) of the observed violation(s) c. Description of the violation(s), including reference(s) to relevant Regulatory Mechanism(s) d. Corrective action(s) (including completion schedule) issued by the permittee e. Date(s) and type(s) of enforcement used to compel compliance (e.g., written notice, citation, stop work order, withholding of local authorizations, etc.) f. Referrals to other regulatory organizations (if any) g. Date(s) violation(s) resolved C. Mapping and Inventory 1. Mapping New permittees shall develop, and existing permittees shall update, a storm sewer system map that depicts the following: Page 10 of 38 Permit No: MNR040000 a. The permittee's entire small MS4 as a goal, but at a minimum, all pipes 12 inches or greater in diameter, including stormwater flow direction in those pipes b. Outfalls, including a unique identification (ID) number assigned by the permittee, and an associated geographic coordinate c. Structural stormwater BMPs that are part of the permittee's small MS4 d. All receiving waters 2. Inventory (2009 Minnesota Session Law, Ch. 172. Sec. 28). a. The permittee shall complete an inventory of: (1) All ponds within the permittee's jurisdiction that are constructed and operated for purposes of water quality treatment, stormwater detention, and flood control, and that are used for the collection of stormwater via constructed conveyances. Stormwater ponds do not include areas of temporary ponding, such as ponds that exist only during a construction project or short-term accumulations of water in road ditches. (2) All wetlands and lakes, within the permittee's jurisdiction, that collect stormwater via constructed conveyances. b. The permittee shall complete and submit the inventory to the Agency on a form provided by the Commissioner. Each feature inventoried shall include the following information: (1) A unique identification (ID) number assigned by the permittee (2) A geographic coordinate (3) Type of feature (e.g., pond, wetland, or lake). This may be determined by using best professional judgment. D. Minimum Control Measures (MCMs) The permittee shall incorporate the following six MCMs into the SWPPP. The permittee shall document as part of the SWPPP, a description of BMPs used for each MCM, the responsible person(s) and department(s) in charge, an implementation schedule, and measureable goals that will be used to determine the success of each BMP. 1. Public Education and Outreach New permittees shall develop and implement, and existing permittees shall revise their current program, as necessary, and continue to implement, a public education program to distribute educational materials or equivalent outreach that informs the public of the impact stormwater discharges have on water bodies and that includes actions citizens, businesses, and other local organizations can take to reduce the discharge of pollutants to stormwater. The program shall also include: a. Distribution of educational materials or equivalent outreach focused on: (1) Specifically selected stormwater - related issue(s) of high priority to the permittee to be emphasized during this permit term (e.g., specific TMDL reduction targets, changing local business practices, promoting adoption of residential BMPs, lake Page 11 of 38 Permit No: MNR040000 improvements through lake associations, responsible management of pet waste, household chemicals, yard waste, deicing materials, etc.) (2) Illicit discharge recognition and reporting illicit discharges to the permittee b. An implementation plan that consists of the following: (1) Target audience(s), including measurable goals for each audience (2) Responsible Person(s) in charge of overall plan implementation (3) Specific activities and schedules to reach measurable goals for each target audience (4) A description of any coordination with and /or use of other stormwater education and outreach programs being conducted by other entities, if applicable (5) Annual evaluation to measure the extent to which measurable goals for each target audience are attained c. Documentation of the following information: (1) A description of any specific stormwater- related issues identified by the permittee under Part III.D.1.a(1) (2) All information required under Part III.D.1.b (3) Any modifications made to the program as a result of the annual evaluation under Part III.D.1.b(5) (4) Activities held, including dates, to reach measurable goals (5) Quantities and descriptions of educational materials distributed, including dates distributed 2. Public Participation /Involvement a. New permittees shall develop and implement, and existing permittees shall revise their current program, as necessary, and continue to implement, a Public Participation /Involvement program to solicit public input on the SWPPP. The permittee shall: (1) Provide a minimum of one (1) opportunity annually for the public to provide input on the adequacy of the SWPPP. Public meetings can be conducted to satisfy this requirement provided appropriate local public notice requirements are followed and opportunity to review and comment on the SWPPP is provided. (2) Provide access to the SWPPP document, Annual Reports, and other documentation that supports or describes the SWPPP (e.g., Regulatory Mechanism(s), etc.) for public review, upon request. All public data requests are subject to the Minnesota Government Data Practices Act, Minn. Stat. § 13. (3) Consider public input, oral and written, submitted by the public to the permittee, regarding the SWPPP. b. Document the following information: (1) All relevant written input submitted by persons regarding the SWPPP (2) All responses from the permittee to written input received regarding the SWPPP, including any modifications made to the SWPPP as a result of the written input received Page 12 of 38 Permit No: MNR040000 (3) Date(s) and location(s) of events held for purposes of compliance with this requirement (4) Notices provided to the public of any events scheduled to meet this requirement, including any electronic correspondence (e.g., website, e-mail distribution lists, notices, etc.) 3. Illicit Discharge Detection and Elimination (IDDE) New permittees shall develop, implement, and enforce, and existing permittees shall revise their current program as necessary, and continue to implement and enforce, a program to detect and eliminate illicit discharges into the small MS4. The IDDE program shall consist of the following: a. Map of the small MS4 as required by Part III.C.1. b. Regulatory Mechanism(s) that effectively prohibits non - stormwater discharges into the small M54, except those non - stormwater discharges authorized under Part 1.6.1. c. Incorporation of illicit discharge detection into all inspection and maintenance activities conducted under Part III.D.6.e and f. Where feasible, illicit discharge inspections shall be conducted during dry- weather conditions (e.g., periods of 72 or more hours of no precipitation). d. Detecting and tracking the source of illicit discharges using visual inspections. The permittee may also include the use of mobile cameras, collecting and analyzing water samples, and /or other detailed inspection procedures that may be effective investigative tools. e. Training of all field staff, in accordance with the requirements of Part III.D.6.g(2), in illicit discharge recognition (including conditions which could cause illicit discharges), and reporting illicit discharges for further investigation. f. Identification of priority areas likely to have illicit discharges, including at a minimum, evaluating land uses associated with business /industrial activities, areas where illicit discharges have been identified in the past, and areas with storage of large quantities of significant materials that could result in an illicit discharge. Based on this evaluation, the permittee shall conduct additional illicit discharge inspections in those areas identified as having a higher likelihood for illicit discharges. g. For timely response to known, suspected, and reported illicit discharges: (1) Procedures for investigating, locating, and eliminating the source of illicit discharges. (2) Procedures for responding to spills, including emergency response procedures to prevent spills from entering the small MS4. The procedures shall also include the immediate notification of the Minnesota Department of Public Safety Duty Officer at 1- 800- 422 -0798 (toll free) or 651 - 649 -5451 (Metro area), if the source of the illicit discharge is a spill or leak as defined in Minn. Stat. § 115.061. (3) When the source of the illicit discharge is found, ERPs required by Part 111.6 (if necessary) to eliminate the illicit discharge and require any needed corrective action(s). Page 13 of 38 Permit No: MNR040000 h. Documentation of the following information: (1) Date(s) and location(s) of IDDE inspections conducted in accordance with Part III.D.3.c and f (2) Reports of alleged illicit discharges received, including dates) of the report(s), and any follow -up action(s) taken by the permittee (3) Date(s) of discovery of all illicit discharges (4) Identification of outfalls, or other areas, where illicit discharges have been discovered (5) Sources (including a description and the responsible party) of illicit discharges (if known) (6) Action(s) taken by the permittee, including date(s), to address discovered illicit discharges 4. Construction Site Stormwater Runoff Control New permittees shall develop, implement, and enforce, and existing permittees shall revise their current program, as necessary, and continue to implement and enforce, a Construction Site Stormwater Runoff Control program that reduces pollutants in stormwater runoff to the small MS4 from construction activity with a land disturbance of greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale, that occurs within the permittee's jurisdiction. The program shall incorporate the following components: a. Regulatory Mechanism(s) A Regulatory Mechanism(s) that establishes requirements for erosion and sediment controls and waste controls that is at least as stringent as the Agency's general permit to Discharge Stormwater Associated with Construction Activity No.MN R100001 (as of the effective date of this permit). The permittee's Regulatory Mechanism(s) shall require that owners and operators of construction activity develop site plans that must be submitted to the permittee for review and approval, prior to the start of construction activity. Site plans must be kept up -to -date by the owners and operators of construction activity with regard to stormwater runoff controls. The Regulatory Mechanism(s) must require that site plans incorporate the following erosion and sediment controls and waste controls as described in the above referenced permit: (1) BMPsto minimize erosion (2) BMPs to minimize the discharge of sediment and other pollutants (3) BNIPs for dewatering activities (4) Site inspections and records of rainfall events (5) BMP maintenance (6) Management of solid and hazardous wastes on each project site (7) Final stabilization upon the completion of construction activity, including the use of perennial vegetative cover on all exposed soils or other equivalent means (8) Criteria for the use of temporary sediment basins Page 14 of 38 Permit No: MNR040000 b. Site plan review The program shall include written procedures for site plan reviews conducted by the permittee prior to the start of construction activity, to ensure compliance with requirements of the Regulatory Mechanism(s). The site plan review procedure shall include notification to owners and operators proposing construction activity of the need to apply for and obtain coverage under the Agency's genera/ permit to Discharge Stormwater Associated with Construction Activity No.MN R100001. c. Public input The program shall include written procedures for receipt and consideration of reports of noncompliance or other stormwater related information on construction activity submitted by the public to the permittee. d. Site inspections The program shall include written procedures for conducting site inspections, to determine compliance with the permittee's Regulatory Mechanism(s). The written procedures shall: (1) Include procedures for identifying priority sites for inspection. Prioritization can be based on such parameters as topography, soil characteristics, type of receiving water(s), stage of construction, compliance history, weather conditions, or other local characteristics and issues. (2) Identify frequency at which site inspections will be conducted (3) Identify name(s) of individual(s) or position titles responsible for conducting site inspections (4) Include a checklist or other written means to document site inspections when determining compliance. e. ERPs required by Part 111.6 of this permit f. Documentation of the following information: (1) For each site plan review —The project name, location, total acreage to be disturbed, owner and operator of the proposed construction activity, and any stormwater related comments and supporting documentation used by the permittee to determine project approval or denial. (2) For each site inspection - Inspection checklists or other written means used to document site inspections Page 15 of 38 Permit No: MNR040000 5. Post- Construction Stormwater Management New permittees shall develop, implement, and enforce, and existing permittees shall revise their current program, as necessary, and continue to implement and enforce, a Post - Construction Stormwater Management program that prevents or reduces water pollution after construction activity is completed, related to new development and redevelopment projects with land disturbance of greater than or equal to one acre, including projects less than one acre that are part of a larger common plan of development or sale, within the permittee's jurisdiction and that discharge to the permittee's small MS4. The program shall consist, at a minimum, of the following: a. A Regulatory Mechanism(s) that incorporates: (1) A requirement that owners and /or operators of construction activity submit site plans with post - construction stormwater management BMPs to the permittee for review and approval, prior to start of construction activity (2) Conditions for Post - Construction Stormwater Management: The permittee shall develop and implement a Post - Construction Stormwater Management program that requires the use of any combination of BMPs, with highest preference given to Green Infrastructure techniques and practices (e.g., infiltration, evapotranspiration, reuse /harvesting, conservation design, urban forestry, green roofs, etc.), necessary to meet the following conditions on the site of a construction activity to the MEP: (a) For new development projects — no net increase from pre - project conditions (on an annual average basis) of: 1) Stormwater discharge Volume, unless precluded by the stormwater management limitations in Part III.D.5.a(3)(a) 2) Stormwater discharges of Total Suspended Solids (TSS) 3) Stormwater discharges of Total Phosphorus (TP) (b) For redevelopment projects — a net reduction from pre - project conditions (on an annual average basis) of: 1) Stormwater discharge Volume, unless precluded by the stormwater management limitations in Part III.13.5.a(3)(a) 2) Stormwater discharges of TSS 3) Stormwater discharges of TP (3) Stormwater management limitations and exceptions (a) Limitations 1) The permittee's Regulatory Mechanism(s) shall prohibit the use of infiltration techniques to achieve the conditions for post- construction stormwater management in Part III.D.5.a(2) when the infiltration structural stormwater BMP will receive discharges from, or be constructed in areas: Page 16 of 38 Permit No: MNR040000 a) Where industrial facilities are not authorized to infiltrate industrial stormwater under an NPDES /SDS Industrial Stormwater Permit issued by the Agency b) Where vehicle fueling and maintenance occur c) With less than three (3) feet of separation distance from the bottom of the infiltration system to the elevation of the seasonally saturated soils or the top of bedrock d) Where high levels of contaminants in soil or groundwater will be mobilized by the infiltrating stormwater 2) The permittee's Regulatory Mechanism(s) shall restrict the use of infiltration techniques to achieve the conditions for post- construction stormwater management, without higher engineering review, sufficient to provide a functioning treatment system and prevent adverse impacts to groundwater, when the infiltration device will be constructed in areas: a) With predominately Hydrologic Soil Group D (clay) soils b) Within 1,000 feet up- gradient, or 100 feet down - gradient of active karst features c) Within a Drinking Water Supply Management Area (DWSMA) as defined in Minn. R. 4720.5100, subp. 13 d) Where soil infiltration rates are more than 8.3 inches per hour 3) For linear projects where the lack of right -of -way precludes the installation of volume control practices that meet the conditions for post- construction stormwater management in Part.III.D.5.a(2), the permittee's Regulatory Mechanism(s) may allow exceptions as described in Part III.D.5.a(3)(b). The permittee's Regulatory Mechanism(s) shall ensure that a reasonable attempt be made to obtain right -of -way during the project planning process. (b) Exceptions for stormwater discharge volume The permittee's Regulatory Mechanism(s) may allow for lesser volume control on the site of the original construction activity than that in Part III.D.5.a(2) only under the following circumstances: 1) The owner and /or operator of a construction activity is precluded from infiltrating stormwater through a designed system due to any of the infiltration related limitations described above, and 2) The owner and /or operator of the construction activity implements, to the MEP, volume reduction techniques, other than infiltration, (e.g., evapotranspiration, reuse /harvesting, conservation design, green roofs, etc.) on the site of the original construction activity that reduces stormwater discharge volume, but may not meet the conditions for post - construction stormwater management in Part III.D.5.a(2). Page 17 of 38 Permit No: MNR040000 (4) Mitigation provisions There may be circumstances where the permittee or other owners and operators of a construction activity cannot cost effectively meet the conditions for post - construction stormwater management for TSS and /or TP in Part III.D.5.a(2) on the site of the original construction activity. For this purpose, the permittee shall identify, or may require owners or operators of a construction activity to identify, locations where mitigation projects can be completed. The permittee's Regulatory Mechanism(s) shall ensure that any stormwater discharges of TSS and /or TP not addressed on the site of the original construction activity are addressed through mitigation and, at a minimum, shall ensure the following requirements are met: (a) Mitigation project areas are selected in the following order of preference: 1) Locations that yield benefits to the same receiving water that receives runoff from the original construction activity 2) Locations within the same Department of Natural Resource (DNR) catchment area as the original construction activity 3) Locations in the next adjacent DNR catchment area up- stream 4) Locations anywhere within the permittee's jurisdiction (b) Mitigation projects must involve the creation of new structural stormwater BMPs or the retrofit of existing structural stormwater BMPs, or the use of a properly designed regional structural stormwater BMP. (c) Routine maintenance of structural stormwater BMPs already required by this permit cannot be used to meet mitigation requirements of this Part. (d) Mitigation projects shall be completed within 24 months after the start of the original construction activity. (e) The permittee shall determine, and document, who is responsible for long -term maintenance on all mitigation projects of this Part. (f) If the permittee receives payment from the owner and /or operator of a construction activity for mitigation purposes in lieu of the owner or operator of that construction activity meeting the conditions for post- construction stormwater management in Part III.D.5.a(2), the permittee shall apply any such payment received to a public stormwater project, and all projects must be in compliance with Part III.D.5.a(4)(a) -(e). (5) Long -term maintenance of structural stormwater BMPs The permittee's Regulatory Mechanism(s) shall provide for the establishment of legal mechanism(s) between the permittee and owners or operators responsible for the long -term maintenance of structural stormwater BMPs not owned or operated by the permittee, that have been implemented to meet the conditions for post - construction stormwater management in Part III.D.5.a(2). This only includes structural stormwater BMPs constructed after the effective date of this permit, that are directly connected to the permittee's MS4, and that are in the permittee's jurisdiction. The legal mechanism shall include provisions that, at a minimum: (a) Allow the permittee to conduct inspections of structural stormwater BMPs not owned or operated by the permittee, perform necessary maintenance, and assess costs for those structural stormwater BMPs when the permittee Page 18 of 38 Permit No: MNR040000 determines that the owner and /or operator of that structural stormwater BMP has not conducted maintenance. (b) Include conditions that are designed to preserve the permittee's right to ensure maintenance responsibility, for structural stormwater BMPs not owned or operated by the permittee, when those responsibilities are legally transferred to another party. (c) Include conditions that are designed to protect /presence structural stormwater BMPs and site features that are implemented to comply with Part III.D.5.a(2). If site configurations or structural stormwater BMPs change, causing decreased structural stormwater BMP effectiveness, new or improved structural stormwater BMPs must be implemented to ensure the conditions for post - construction stormwater management in Part III.D.5.a(2) continue to be met. b. Site plan review The program shall include written procedures for site plan reviews conducted by the permittee prior to the start of construction activity, to ensure compliance with requirements of the Regulatory Mechanism(s). c. Documentation of the following information: (1) Any supporting documentation used by the permittee to determine compliance with Part III.D.S.a, including the project name, location, owner and operator of the construction activity, any checklists used for conducting site plan reviews, and any calculations used to determine compliance (2) All supporting documentation associated with mitigation projects authorized by the permittee ' (3) Payments received and used in accordance with Part III.D.S.a(4)(f) (4) All legal mechanisms drafted in accordance with Part III.D.5.a(5), including date(s) of the agreement(s) and name(s) of all responsible parties involved 6. Pollution Prevention /Good Housekeeping For Municipal Operations New permittees shall develop and implement, and existing permittees shall revise their current program, as necessary, and continue to implement, an operations and maintenance program that prevents or reduces the discharge of pollutants from permittee owned /operated facilities and operations to the small MS4. The operations and maintenance program shall include, at a minimum, the following: a. Facilities Inventory The permittee shall develop and maintain an inventory of permittee owned /operated facilities that contribute pollutants to stormwater discharges. Facilities to be inventoried may include, but is not limited to: composting, equipment storage and maintenance, hazardous waste disposal, hazardous waste handling and transfer; landfills, solid waste handling and transfer, parks, pesticide storage, public parking lots, public golf courses; public swimming pools, public works yards, recycling, salt storage, vehicle storage and maintenance (e.g., fueling and washing) yards, and materials storage yards. Page 19 of 38 Permit No: MNR040000 b. Development and Implementation of BMPs for inventoried facilities and municipal operations Considering the source of pollutants and sensitivity of receiving waters (e.g., Outstanding Resource Value Waters (ORVWs), impaired waters, trout streams, etc.), the permittee shall develop and implement BMPs that prevent or reduce pollutants in stormwater discharges from the small MS4 and from: (1) All inventoried facilities that discharge to the MS4, and (2) The following municipal operations that may contribute pollutants to stormwater discharges, where applicable: (a) Waste disposal and storage, including dumpsters (b) Management of temporary and permanent stockpiles of materials such as street sweepings, snow, deicing materials (e.g., salt), sand and sediment removal piles (c) Vehicle fueling, washing and maintenance (d) Routine street and parking lot sweeping (e) Emergency response, including spill prevention plans (f) Cleaning of maintenance equipment, building exteriors, dumpsters, and the disposal of associated waste and wastewater (g) Use, storage, and disposal of significant materials (h) Landscaping, park, and lawn maintenance (i) Road maintenance, including pothole repair, road shoulder maintenance, pavement marking, sealing, and repaving (j) Right -of -way maintenance, including mowing (k) Application of herbicides, pesticides, and fertilizers (1) Cold- weather operations, including plowing or other snow removal practices, sand use, and application of deicing compounds c. Development and implementation of BMPs for MS4 discharges that may affect Source Water Protection Areas (Minn. R. 4720.5100- 4720.5590) The permittee shall incorporate BMPs into the SWPPP to protect any of the following drinking water sources that the MS4 discharge may affect, and the permittee shall include the map of these sources with the SWPPP if they have been mapped: (1) Wells and source waters for DWSMAs identified as vulnerable under Minn. R. 4720.5205, 4720.5210, and 4720.5330 (2) Source water protection areas for surface intakes identified in the source water assessments conducted by or for the Minnesota Department of Health (MDH) under the federal Safe Drinking Water Act, U.S.C. §§ 300j —13 d. Pond Assessment Procedures and Schedule The permittee shall develop procedures and a schedule for the purpose of determining the TSS and TP treatment effectiveness of all permittee owned /operated ponds constructed and used for the collection and treatment of stormwater. The schedule (which may exceed this permit term) shall be based on measureable goals and priorities established by the permittee. Page 20 of 38 Permit No: MNR040000 e. Inspections (1) Unless inspection frequency is adjusted as described below, the permittee shall conduct annual inspections of structural stormwater BMPs (excluding stormwater ponds which are under a separate schedule below) to determine structural integrity, proper function and maintenance needs. Inspections of structural stormwater BMPs shall be conducted annually unless the permittee determines if either of the following conditions apply: 1) Complaints received or patterns of maintenance indicate a greater frequency is necessary, or 2) Maintenance or sediment removal is not required after completion of the first two annual inspections; in which case the permittee may reduce the frequency of inspections to once every two (2) years. However, existing permittees are authorized under this permit to continue using inspection frequency adjustments, previously determined under the general stormwater permit for small M54s No.MNR040000, effective June 1, 2006, provided that documentation requirements in Part III.D.6.h(2) are satisfied. (2) Prior to the expiration date of this permit, the permittee shall conduct at least one inspection of all ponds and outfalls (excluding underground outfalls) in order to determine structural integrity, proper function, and maintenance needs. (3) The permittee shall conduct quarterly inspections of stockpiles, and storage and material handling areas as inventoried in Part III.D.6.a, to determine maintenance needs and proper function of BMPs. f. Maintenance Based on inspection findings, the permittee shall determine if repair, replacement, or maintenance measures are necessary in order to ensure the structural integrity, proper function, and treatment effectiveness of structural stormwater BMPs. Necessary maintenance shall be completed as soon as possible to prevent or reduce the discharge of pollutants to stormwater. g. Employee Training The permittee shall develop and implement a stormwater management training program commensurate with employee's job- duties as they relate to the permittee's SWPPP, including reporting and assessment activities. The permittee may use training materials from the United States Environmental Protection Agency (USEPA), state and regional agencies, or other organizations as appropriate to meet this requirement. The employee training program shall: (1) Address the importance of protecting water quality (2) Cover the requirements of the permit relevant to the job duties of the employee (3) Include a schedule that establishes initial training for new and /or seasonal employees, and recurring training intervals for existing employees to address changes in procedures, practices, techniques, or requirements Page 21 of 38 Permit No: MNR040000 h. Documentation of the following information: (1) Date(s) and description of findings of all inspections conducted in accordance with Part III.D.6.e (2) Any adjustments to inspection frequency as authorized under Part III.D.6.e(1) (3) A description of maintenance conducted, including dates, as a result of inspection findings (4) Pond sediment excavation and removal activities, including: (a) The unique ID number (consistent with that required in Part III.C.2.a) of each stormwater pond from which sediment is removed (b) The volume (e.g., cubic yards) of sediment removed from each stormwater pond (c) Results from any testing of sediment from each removal activity (d) Location(s) of final disposal of sediment from each stormwater pond (5) Employee stormwater management training events, including a list of topics covered, names of employees in attendance, and date of each event E. Discharges to Impaired Waters with a USEPA- Approved TMDL that Includes an Applicable WLA For each applicable WLA approved prior to the effective date of this permit, the BMPs included in the compliance schedule at application constitute a discharge requirement for the permittee. The permittee shall demonstrate continuing progress toward meeting each discharge requirement, on a form provided by the Commissioner, by submitting the following: 1. An assessment of progress toward meeting each discharge requirement, including a list of all BMPs being applied to achieve each applicable WLA. For each structural stormwater BMP, the permittee shall provide a unique identification (ID) number and geographic coordinate. If the listed structural stormwater BMP is also inventoried as required by Part III.C.2, the same ID number shall be used. 2. A list of all BMPs the permittee submitted at the time of application in the SWPPP document compliance schedule(s) and the stage of implementation for each BMP, including any BMPs specifically identified for the small MS4 in the TMDL report that the permittee plans to implement 3. An up -dated estimate of the cumulative reductions in loading achieved for each pollutant of concern associated with each applicable WLA 4. An up -dated narrative describing any adaptive management strategies used (including projected dates) for making progress toward achieving each applicable WLA Page 22 of 38 Permit No: MNR040000 F. Alum or Ferric Chloride Phosphorus Treatment Systems If the permittee uses an alum or ferric chloride phosphorus treatment system, the permittee shall comply with the following: 1. Minimum Requirements of an Alum or Ferric Chloride Phosphorus Treatment System a. Limitations (1) The permittee shall use the treatment system for the treatment of phosphorus in stormwater. Non - stormwater discharges shall not be treated by this system. (2) The treatment system must be contained within the conveyances and structural stormwater BMPs of a small MS4. The utilized conveyances and structural stormwater BMPs shall not include any receiving waters. (3) Phosphorus treatment systems utilizing chemicals other than alum or ferric chloride must receive written approval from the Agency. (4) In -lake phosphorus treatment activities are not authorized under this permit. b. Treatment System Design (1) The treatment system shall be constructed in a manner that diverts the stormwater flow to be treated from the main conveyance system. (2) A High Flow Bypass shall be part of the inlet design. (3) A flocculent storage /settling area shall be incorporated into the design, and adequate maintenance access must be provided (minimum of 8 feet wide) for the removal of accumulated sediment. 2. Monitoring During Operation a. A designated person shall perform visual monitoring of the treatment system for proper performance at least once every seven (7) days, and within 24 hours after a rainfall event greater than 2.5 inches in 24 hours. Following visual monitoring which occurs within 24 hours after a rainfall event, the next visual monitoring must be conducted within seven (7) days after that rainfall event. b. Three benchmark monitoring stations shall be established. Table B -1 shall be used for the parameters, units of measure, and frequency of measurement for each station. c. Samples shall be collected as grab samples or flow- weighted 24 -hour composite samples. d. Each sample, excluding pH samples, must be analyzed by a laboratory certified by the MDH and /or the MPCA, and: (1) Sample preservation and test procedures for the analysis of pollutants shall conform to 40 CFR Part 136 and Minn. R. 7041.3200. (2) Detection limits for dissolved phosphorus, dissolved aluminum, and dissolved iron shall be a minimum of 6 micrograms per liter (µg /L), 10 µg /L, and 20 pg /L, respectively. (3) pH must be measured within 15 minutes of sample collection using calibrated and maintained equipment. Page 23 of 38 Permit No: MNR040000 Table B -1: Monitoring Parameters During Operation Station Alum Parameters Ferric Parameters Units Frequency Upstream- Total Phosphorus Total Phosphorus mg /L 1 x week Background Dissolved Phosphorus Dissolved Phosphorus mg /L 1 x week Total Aluminum Total Iron mg /L 1 x month Dissolved Aluminum Dissolved Iron mg /L 1 x week pH pH SU 1 x week Flow Flow Mgd Daily Alum or Ferric Alum Ferric Gallons Daily Total Dosed Chloride Feed in Gallons Discharge Total Phosphorus Total Phosphorus mg /L 1 x week From Dissolved Phosphorus Dissolved Phosphorus mg /L 1 x week Treatment Total Aluminum Total Iron mg /L 1 x month Dissolved Aluminum Dissolved Iron mg/L 1 x week pH pH SU 1 x week Flow Flow Mgd Daily e. In the following situations, the permittee shall perform corrective action(s) and immediately notify the Minnesota Department of Public Safety Duty Officer at 1- 800 - 422 -0798 (toll free) or 651 - 649 -5451 (Metro area): (1) The pH of the discharged water is not within the range of 6.0 and 9.0 (2) Any indications of toxicity or measurements exceeding water quality standards (3) A spill, as defined in Minn. Stat. § 115.01, subd. 13, of alum or ferric chloride 3. Reporting and Recordkeeping a. Annual Reporting The permittee shall submit the following information with the Annual Report in Part IV.B. The Annual Report must include a month -by -month summary of: (1) Date(s) of operation (2) Chemical(s) used for treatment (3) Gallons of water treated (4) Gallons of alum or ferric chloride treatment used (5) Calculated pounds of phosphorus removed (6) Any performance issues and the corrective action(s), including the date(s) when corrective action(s) were taken b. On -Site Recordkeeping A record of the following design parameters shall be kept on -site: (1) Site - specific jar testing conducted using typical and representative water samples in accordance with ASTM D2035 -08 (2003) (2) Baseline concentrations of the following parameters in the influent and receiving waters: Page 24 of 38 Permit No: MNR040000 (a) Aluminum or Iron (b) Phosphorus (3) The following system parameters and how each was determined: (a) Flocculent settling velocity (b) Minimum required retention time (c) Rate of diversion of stormwater into the system (d) The flow rate from the discharge of the outlet structure (e) Range of expected dosing rates 4. Treatment System Management The following site - specific procedures shall be developed and a copy kept on -site: a. Procedures for the installation, operation and maintenance of all pumps, generators, control systems, and other equipment b. Specific parameters for determining when the solids must be removed from the system and how the solids will be handled and disposed of c. Procedures for cleaning up and /or containing a spill of each chemical stored on -site G. Stormwater Pollution Prevention Program (SWPPP) Modification The Commissioner may require the permittee to modify the SWPPP as needed, in accordance with the procedures of Minn. R. 7001, and may consider the following factors: a. Discharges from the small MS4 are impacting the quality of receiving waters. b. More stringent requirements are necessary to comply with state or federal regulations. c. Additional conditions are deemed necessary to comply with the goals and applicable requirements of the Clean Water Act and protect water quality. 2. Modifications that the permittee chooses to make to the SWPPP document developed under Part II.D, other than modifications authorized in Part III.G.3 below, must be approved by the Commissioner in accordance with the procedures of Minn. R. 7001. All requests must be in writing, setting forth schedules for compliance. The request must discuss alternative program modifications, assure compliance with requirements of the permit, and meet other applicable laws. The SWPPP document may only be modified by the permittee without prior approval of the Commissioner provided it is in accordance with a. or b. below, and the Commissioner is notified of the modification in the Annual Report for the year the modification is made. a. A BMP is added, and none subtracted, from the SWPPP document. b. A less effective BMP identified in the SWPPP document is replaced with a more effective BMP. The alternate BMP shall address the same, or similar, concerns as the ineffective or failed BMP. Page 25 of 38 Permit No: MNR040000 PART IV. ANNUAL SWPPP ASSESSMENT, ANNUAL REPORTING, AND RECORD KEEPING A. Annual SWPPP Assessment The permittee shall conduct an Annual Assessment of their SWPPP to determine program compliance, the appropriateness of BMPs, and progress towards achieving the measurable goals identified in their SWPPP document. The Annual SWPPP Assessment shall be performed prior to completion of each Annual Report. B. Annual Reporting The permittee shall submit an Annual Report to the Agency by June 301h of each calendar year. The Annual Report shall cover the portion of the previous calendar year during which the permittee was authorized to discharge stormwater under this permit. The Annual Report shall be submitted to the Agency, on a form provided by the Commissioner, that will at a minimum, consist of the following: 1. The status of compliance with permit terms and conditions, including an assessment of the appropriateness of BMPs identified by the permittee and progress towards achieving the identified measurable goals for each of the MCMs in Part III.D.1 -6. The assessment must be based on results of information collected and analyzed, including monitoring (if any), inspection findings, and public input received during the reporting period. 2. The stormwater activities the permittee plans to undertake during the next reporting cycle 3. A change in any identified BMPs or measurable goals for any of the MCMs in Part III.D.1 -6 4. Information required in Part III.E, to demonstrate progress in meeting applicable WLAs 5. Information required to be recorded or documented in Part III 6. A statement that the permittee is relying on a partnership(s) with another regulated Small MS4(s) to satisfy one or more permit requirements (if applicable), and what agreements the permittee has entered into in support of this effort C. Record Keeping 1. The permittee shall keep records required by the NPDES permit for at least three (3) years beyond the term of this permit. The permittee shall submit records to the Commissioner only if specifically asked to do so. 2. The permittee shall make records, including components of the SWPPP, available to the public at reasonable times during regular business hours (see 40 CFR § 122.7 for confidentiality provision). 3. The permittee shall retain copies of the permit application, all documentation necessary to comply with SWPPP requirements, all data and information used by the permittee to complete the application process, and any information developed as a requirement of this permit or as requested by the Commissioner, for a period of at least three (3) years beyond the date of permit expiration. This period is automatically extended during the course of an Page 26 of 38 Permit No: MNR040000 unresolved enforcement action regarding the small MS4 or as requested by the Commissioner. D. Where to Submit The permittee shall use an electronic submittal process, when provided by the Agency, when submitting information required by this permit. When submitting information electronically is not possible, the permittee may use the following mailing address: Minnesota Pollution Control Agency (MPCA) Attn: WQ Submittals Center 520 Lafayette Road North St. Paul, MN 55155 -4194 Page 27 of 38 Permit No: MNR040000 PARTY. GENERAL CONDITIONS A. The Agency's issuance of a permit does not release the permittee from any liability, penalty, or duty imposed by Minnesota or federal statutes or rules or local ordinances, except the obligation to obtain the permit. (Minn. R. 7001.0150, subp.3, item A) B. The Agency's issuance of a permit does not prevent the future adoption by the Agency of pollution control rules, standards, or orders more stringent than those now in existence and does not prevent the enforcement of these rules, standards, or orders against the permittee. (Minn. R. 7001.0150, subp.3, item B) C. The permit does not convey a property right or an exclusive privilege. (Minn. R. 7001.0150, subp. 3, item C) D. The Agency's issuance of a permit does not obligate the Agency to enforce local laws, rules, or plans beyond that authorized by Minnesota statutes. (Minn. R. 7001.0150, subp.3, item D) E. The permittee shall perform the actions or conduct the activity authorized by the permit in accordance with the plans and specifications approved by the Agency and in compliance with the conditions of the permit. (Minn. R. 7001.0150, subp. 3, item E) F. The permittee shall at all times properly operate and maintain the facilities and systems of treatment and control and the appurtenances related to them which are installed or used by the permittee to achieve compliance with the conditions of the permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. The permittee shall install and maintain appropriate backup or auxiliary facilities if they are necessary to achieve compliance with the conditions of the permit and, for all permits other than hazardous waste facility permits, if these backup or auxiliary facilities are technically and economically feasible. (Minn. R. 7001.0150. subp. 3, item F.) G. The permittee may not knowingly make a false or misleading statement, representation, or certification in a record, report, plan, or other document required to be submitted to the Agency or to the Commissioner by the permit. The permittee shall immediately upon discovery report to the Commissioner an error or omission in these records, reports, plans, or other documents. (Minn. Stat. § 609.671; Minn.R. 7001.0150, subp.3, item G.; and Minn. R. 7001.1090, subp. 1, items G and H) H. The permittee shall, when requested by the Commissioner, submit within a reasonable time the information and reports that are relevant to the control of pollution regarding the construction, modification, or operation of the facility covered by the permit or regarding the conduct of the activity covered by the permit. (Minn. R. 7001.0150, subp. 3, item H) When authorized by Minn. Stat. §§ 115.04; 1156.17, subd. 4; and 116.091, and upon presentation of proper credentials, the Agency, or an authorized employee or agent of the Agency, shall be allowed by the permittee to enter at reasonable times upon the property of the permittee to examine and copy books, papers, records, or memoranda pertaining to the construction, modification, or operation of the facility covered by the permit or pertaining to the activity covered by the permit; and to conduct surveys and investigations, including sampling or monitoring, pertaining to the construction, modification, or operation of the facility covered by Page 28 of 38 Permit No: MNR040000 the permit or pertaining to the activity covered by the permit. (Minn. R. 7001.0150, subp.3, item If the permittee discovers, through any means, including notification by the Agency, that noncompliance with a condition of the permit has occurred, the permittee shall take all reasonable steps to minimize the adverse impacts on human health, public drinking water supplies, or the environment resulting from the noncompliance. (Minn. R. 7001.0150, subp.3, item J) K. If the permittee discovers that noncompliance with a condition of the permit has occurred which could endanger human health, public drinking water supplies, or the environment, the permittee shall, within 24 hours of the discovery of the noncompliance, orally notify the Commissioner. Within five days of the discovery of the noncompliance, the permittee shall submit to the Commissioner a written description of the noncompliance; the cause of the noncompliance, the exact dates of the period of the noncompliance, if the noncompliance has not been corrected; the anticipated time it is expected to continue, and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. (Minn. R. 7001.0150, subp.3, item K) L. The permittee shall report noncompliance with the permit not reported under item K as a part of the next report, which the permittee is required to submit under this permit. If no reports are required within 30 days of the discovery of the noncompliance, the permittee shall submit the information listed in item K within 30 days of the discovery of the noncompliance. (Minn. R. 7001.0150, subp.3, item L) M. The permittee shall give advance notice to the Commissioner as soon as possible of planned physical alterations or additions to the permitted facility (MS4) or activity that may result in noncompliance with a Minnesota or federal pollution control statute or rule or a condition of the permit. (Minn. R. 7001.0150, subp. 3, item M) The permit is not transferable to any person without the express written approval of the Agency after compliance with the requirements of Minn. R. 7001.0190. A person to whom the permit has been transferred shall comply with the conditions of the permit. (Minn. R. 7001.0150, subp.3, item N) O. The permit authorizes the permittee to perform the activities described in the permit under the conditions of the permit. In issuing the permit, the state and Agency assume no responsibility for damage to persons, property, or the environment caused by the activities of the permittee in the conduct of its actions, including those activities authorized, directed, or undertaken under the permit. To the extent the state and Agency may be liable for the activities of its employees, that liability is explicitly limited to that provided in the Tort Claims Act, Minn. Stat. § 3.736. (Minn. R. 7001.0150, subp. 3, item O) This permit incorporates by reference the applicable portions of 40 CFR §§ 122.41 and 122.42 parts (c) and (d), and Minn. R. 7001.1090, which are enforceable parts of this permit. Page 29 of 38 Permit No: MNR040000 APPENDIX A SCHEDULES Table 1 Application Submittal Schedule for Existing permittees Group 1 Within 90 days after permit effective date Alexandria, City Glencoe, City Oak Grove, City Andover, City Grand Rapids, City Orono, City Anoka Technical College Greenwood, City Ramsey, City Arden Hills, City Hibbing, City Sartell, City Birchwood Village, City Hilltop, City South St Paul, City Cambridge, City Inver Hills Community College St Bonifacius, City Centerville, City Little Falls, City St Cloud Technical College Chaska, City Long Lake, City St Louis County Dakota County Technical College Maple Plain, City St Paul Park, City Detroit Lakes, City Minnetonka Beach, City Waite Park, City Excelsior, City Monticello, City Woodland, City Northland Comm & Technical College Group 2 Within 120 days after permit effective date Anoka, City Hutchinson, City Nowthen, City Anoka - Ramsey Community College La Crescent, City Proctor, City Baxter, City Lake Superior College - Duluth Red Wing, City Brainerd, City Landfall, City Shakopee, City Buffalo, City Lauderdale, City South Washington WD Champlin, City Litchfield, City Spring Park, City Clay County Mendota, City St Joseph, City Coon Creek WD Midway Township St Michael, City Dayton, City MN State Comm and Tech College- Moorhead Stearns County Dilworth, City Moorhead, City Tonka Bay, City East Grand Forks, City Mounds View, City West St Paul, City Elk River, City North Oaks, City Willernie, City Elko New Market, City Winona, City Fridley, City Group 3 Within 150 days after permit effective date Albert Lea, City Hennepin Technical College Eden Prairie Owatonna, City Anoka County Hermantown, City Pine Springs, City Apple Valley, City Hopkins, City Plymouth, City Austin, City Houston County Prior Lake, City Bemidji, City Hugo, City Prior Lake- Spring Lake WSD Benton County Independence, City Ramsey County Public Works Big Lake, City Inver Grove Heights, City Ramsey - Washington Metro WD Big Lake Township Jackson Township Redwood Falls, City Blaine, City La Crescent Township Rice Creek WD Bloomington, City Laketown Township Rice Lake Township Brockway Township Lakeville, City Richfield, City Page 30 of 38 Permit No: MNR040000 Brooklyn Center, City Lake Elmo, City Robbinsdale, City Brooklyn Park, City Le Sauk Township Rochester, City Burnsville, City Lexington, City Rochester Community & Tech College Capitol Region WD Lilydale, City Rochester Township Carver, City Lino Lakes, City Rosemount, City Carver County Little Canada, City Roseville, City Cascade Township Loretto, City Sauk Rapids, City Century College Louisville Township Sauk Rapids Township Chanhassen, City Mahtomedi, City Savage, City Circle Pines, City Mankato, City Osseo, City Cloquet, City Maplewood, City Otsego, City Columbia Heights, City Maple Grove, City Scott County Coon Rapids, City Marion Township Sherburne County Corcoran, City Marshall, City Shoreview, City Cottage Grove, City Medicine Lake, City Shorewood, City Credit River Township Medina, City Spring Lake Park, City Crystal, City Mendota Heights, City Spring Lake, Township Dakota County Metropolitan State University Saint Paul College Deephaven, City Minden Township St Anthony Village, City Dellwood, City Minnehaha Creek WD St Cloud, City Duluth, City Minnesota Correctional -Lino Lakes St Cloud State University Duluth Township Minnesota Correctional-St Cloud St Joseph Township Eagan, City Minnetonka, City St Louis Park, City East Bethel, City Minnetrista, City St Peter, City Eden Prairie, City MNDOT Metro District Stillwater, City Edina, City MNDOT Outstate District Sunfish Lake, City Empire Township MN State University- Moorhead U of M- Duluth Fairmont, City Montevideo, City U of M -Twin Cities Campus Falcon Heights, City Mound, City Vadnais Heights, City Faribault, City Mpls Community/Technical College Valley Branch WD Farmington, City New Brighton, City Victoria, City Federal Medical Center New Hope, City Waconia, City Fergus Falls, City New Ulm, City Waseca, City Forest Lake, City Newport City Washington County Gem Lake, City Normandale Community College Watab Township Golden Valley, City North Branch, City Wayzata, City Grant, City North Hennepin Community College West Lakeland Township Ham Lake, City North Mankato, City White Bear Lake, City Hastings, City North St Paul, City White Bear Township Haven Township Northfield, City Willmar, City Haverhill Township Oakdale, City Woodbury, City Hennepin County Olmsted County Worthington, City Page 31 of 38 Permit No: MNR040000 Table 2 Existine Permittees — Schedule of Permit Reauirements Permit Requirement Schedule PART II. APPLICATION REQUIREMENTS • Submit Part 2 of the permit application with the SWPPP • See Table 1 above. document completed in accordance with Part H.D. Commissioner that the MS4 meets the criteria in PART III. STORMWATER POLLUTION PREVENTION Minn. R. 7090.1010, Subpart I.A. or B. and permit PROGRAM (SWPPP) coverage is required. • Complete revisions to incorporate requirements of Part • Within 12 months of the date permit coverage is III.A -F into current SWPPP. extended, unless other timelines have been • Complete all requirements of Part 111.A -F. specifically established in this permit and identified Part III.0 Mapping and Inventory below. Part III.C.2 Inventory specifically established in this permit and identified • Complete and submit inventory in accordance with Part • Within 12 months of the date permit coverage is /H.C.2. extended. Part III.D.6 Pollution Prevention /Good Housekeeping For under Part I.F.2. Municipal Operations Part III.D.6.e Inspections (see Part III.D.3) • Conduct inspections. • Annually (Part III.D.6.e(1) and (2)), Quarterly (Part III.D.6.e(3)). Part III.E Impaired Waters and TMDLs (if applicable) • With each Annual Report required in Part IV.B. • Submit all information required by Part III.E. Part III.F. Alum or Ferric Chloride Phosphorus Treatment Systems (if applicable) • Meet requirements for treatment systems under Part • Within 12 months of the date permit coverage is Ill. F. extended. PART IV. ANNUAL SWPPP ASSESSMENT, ANNUAL REPORTING AND RECORD KEEPING Part IV.A Annual SWPPP Assessment • Conduct assessment of the SWPPP. • Annually and prior to completion of each Annual Report. Part IV.B Annual Reporting • Submit an Annual Report • By June 30`h of each calendar year. Table 3 New Permittees — Schedule of Permit Reauirements Permit Requirement Schedule PART II. APPLICATION REQUIREMENTS • Submit Part 1, and Part 2 of the permit application with • Within 18 months of written notification from the the proposed SWPPP document as required by Part II.D. Commissioner that the MS4 meets the criteria in Minn. R. 7090.1010, Subpart I.A. or B. and permit coverage is required. PART III. STORMWATER POLLUTION PREVENTION PROGRAM (SWPPP) • Complete all requirements of Part 111.A -F. • Within 36 months of the date permit coverage is extended, unless other timelines have been specifically established in this permit and identified below; or • Within timelines established by the Commissioner Part III.A Regulatory Mechanism(s) under Part I.F.2. Illicit Discharge Detection and Elimination (see Part III.D.3) Page 32 of 38 Permit No: MNR040000 • Develop, implement, and enforce Regulatory Mechanism. • Within 12 months of the date permit coverage is extended. Construction Site Stormwater Runoff Control (see Part III.D.4) • Develop, implement, and enforce Regulatory Mechanism. Post- Construction Stormwater Management (see Part III.D.S) • Develop, implement, and enforce Regulatory Mechanism. • Within six (6) months of the date permit coverage is extended. • Within 24 months of the date permit coverage is extended. Part III.B Enforcement Response Procedures (ERPs) • Develop and implement written ERPs for the Regulatory • Within 24 months of the date permit coverage is Mechanism(s) required under Part III.A. extended. Part III.0 Mapping and Inventory Part III.C.1 Mapping • Develop a storm sewer system map. • Within 24 months of the date permit coverage is extended. Part III.C.2 Inventory • Complete and submit inventory in accordance with Part • Within 24 months of the date permit coverage is I1I.C.2. extended. Part III.D Minimum Control Measures Part III.D.4 Construction Site Stormwater Runoff Control • Develop, implement, and enforce o Construction Site • Within six (6) months of the date permit coverage is Stormwater Runoff Control program. extended. See Part III.A Regulatory Mechanism(s). Part III.D.S Post - Construction Stormwater Management • Develop, implement, and enforce a Post - Construction Stormwater Management program. Part III.D.6 Pollution Prevention /Good Housekeeping for Municipal Operations Part III.D.6.e Inspections • Conduct inspections. Part III.E Impaired Waters and TMDLs (if applicable) • Submit all information required by Part III.E. Part III.F. Alum or Ferric Chloride Phosphorus Treatment Systems (if applicable) • Meet requirements for treatment systems under Part ULF. PART IV. ANNUAL SWPPP ASSESSMENT, ANNUAL REPORTING AND RECORD KEEPING Part IV.A Annual SWPPP Assessment • Conduct assessment of the SWPPP. Part IV.B Annual Reporting • Submit an Annual Report • Within 24 months of the date permit coverage is extended. See Part HLA Regulatory Mechanism(s). • Annually (Part III.D.6.e(1) and (2)), Quarterly (Part III.D.6.e(3)). • With each Annual Report required in Part IV.B. • Within 12 months of the date permit coverage is extended. • Annually and prior to completion of each Annual Report. • By June 30`h of each calendar year. Page 33 of 38 Permit No: MNR040000 APPENDIX B DEFINITIONS AND ABBREVIATIONS The definitions in this Part are for purposes of this permit only. 1. "Active Karst" means geographic areas underlain by carbonate bedrock (or other forms of bedrock that can erode or dissolve) with less than 50 feet of sediment cover. 2. "Agency" means the Minnesota Pollution Control Agency or MPCA. (Minn. Stat. § 116.36, subd. 2.) 3. "Alum or Ferric Chloride Phosphorus Treatment System" means the diversion of flowing stormwater from a MS4, removal of phosphorus through the use a continuous feed of alum or ferric chloride additive, flocculation, and the return of the treated stormwater back into a MS4 or receiving water. 4. "Applicable WLA" — means a Waste Load Allocation assigned to the permittee and approved by the USEPA. 5. "Best Management Practices" or "BMPs" means practices to prevent or reduce the pollution of the waters of the state, including schedules of activities, prohibitions of practices, and other management practices, and also includes treatment requirements, operating procedures and practices to control plant site runoff, spillage or leaks, sludge, or waste disposal or drainage from raw material storage. (Minn. R. 7001.1020, subp.5.) 6. "Commissioner" means the Commissioner of the Minnesota Pollution Control Agency or the Commissioner's designee. (Minn. Stat. § 116.36, subd. 3.) 7. "Common Plan of Development or Sale" means a contiguous area where multiple separate and distinct land disturbing activities may be taking place at different times, on different schedules, but under one proposed plan. One plan is broadly defined to include design, permit application, advertisement or physical demarcation indicating that land- disturbing activities may occur. 8. "Construction Activity" includes construction activity as defined in 40 CFR § 122.26(b)(14)(x) and small construction activity as defined in 40 CFR § 122.26(b)(15). This includes a disturbance to the land that results in a change in the topography, existing soil cover (both vegetative and non - vegetative), or the existing soil topography that may result in accelerated stormwater runoff, leading to soil erosion and movement of sediment into surface waters or drainage systems. Examples of construction activity may include clearing, grading, filling, and excavating. Construction activity includes the disturbance of less than one acre of total land area that is a part of a larger common plan of development or sale if the larger common plan will ultimately disturb one (1) acre or more. 9. "DNR Catchment Area" means the Hydrologic Unit 08 areas delineated and digitized by the Minnesota DNR. The catchment areas are available for download at the Minnesota DNR Data Deli website. DNR catchment areas may be locally corrected, in which case the local corrections may be used. 10. "Effective Date" means the date, located on the front cover of this permit, on which this permit shall become effective. Page 34 of 38 Permit No: MNR040000 11. "Existing Permittee" means an Owner /Operator of a small MS4 that has been authorized to discharge stormwater under a previously issued general permit for small MS4s in the state of Minnesota. 12. "General permit" means a permit issued under Minn. R. 7001.0210 to a category of permittees whose operations, emissions, activities, discharges, or facilities are the same or substantially similar. (Minn. R. 7001.0010, subp.4.) 13. "Geographic Coordinate" means the point location of a stormwater feature expressed by X, Y coordinates of a standard Cartesian coordinate system (i.e. latitude /longitude) that can be readily converted to Universal Transverse Mercator (UTM), Zone 15N in the NAD83 datum. For polygon features, the geographic coordinate will typically define the approximate center of a stormwater feature. 14. "Green Infrastructure" means a wide array of practices at multiple scales that manage wet weather and that maintains or restores natural hydrology by infiltrating, evapotranspiring, or harvesting and using stormwater. On a regional scale, green infrastructure is the preservation or restoration of natural landscape features, such as forests, floodplains and wetlands, coupled with policies such as infill and redevelopment that reduce overall imperviousness in a watershed. On the local scale, green infrastructure consists of site and neighborhood - specific practices, such as bioretention, trees, green roofs, permeable pavements and cisterns. 15. "High Flow Bypass" means a function of an inlet device that allows a certain flow of water through, but diverts any higher flows away. High flow bypasses are generally used for BMPs that can only treat a designed amount of flow and that would be negatively affected by higher flows. 16. "Illicit Discharge" means any discharge to a municipal separate storm sewer that is not composed entirely of stormwater except discharges pursuant to a NPDES permit (other than the NPDES permit for discharges from the municipal separate storm sewer) and discharges resulting from firefighting activities. (40 CFR § 122.26(b)(2)) 17. "Impaired Water" means waters identified as impaired by the Agency, and approved by the USEPA, pursuant to section 303(d) of the Clean Water Act (33 U.S.C. § 303(d)). 18. "Maximum Extent Practicable" or "MEP" means the statutory standard (33 U.S.C. § 1342(p)(3)(B)(iii)) that establishes the level of pollutant reductions that an Owner or Operator of Regulated MS4s must achieve. The USEPA has intentionally not provided a precise definition of MEP to allow maximum flexibility in MS4 permitting. The pollutant reductions that represent MEP may be different for each small MS4, given the unique local hydrologic and geologic concerns that may exist and the differing possible pollutant control strategies. Therefore, each permittee will determine appropriate BMPs to satisfy each of the six Minimum Control Measures (MCMs) through an evaluative process. The USEPA envisions application of the MEP standard as an iterative process. 19. "Municipal separate storm sewer system" or "MS4" means a conveyance or system of conveyances including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man- made channels, or storm drains: a. owned or operated by a state, city, town, county, district, association, or other public body, created by or pursuant to state law, having jurisdiction over disposal of sewage, industrial Page 35 of 38 Permit No: MNR040000 wastes, stormwater, or other wastes, including special districts under state law such as a sewer district, flood control district, or drainage district or similar entity, or an Indian tribe or an authorized Indian tribe organization, or a designated and approved management Agency under section 208 of the federal Clean Water Act, United States Code, title 33, section 1288, that discharges into waters of the state b. designed or used for collecting or conveying stormwater c. that is not a combined sewer; and d. that is not part of a publicly owned treatment works as defined in 40 CFR § 122.2 Municipal separate storm sewer systems do not include separate storm sewers in very discrete areas, such as individual buildings. (Minn. R. 7090.0080, subp. 8). 20. "New development" means all construction activity that is not defined as redevelopment. 21. "New Permittee" means an Owner /Operator of a small MS4 that has not been authorized to discharge stormwater under a previously issued General stormwater Permit for small MS4s in the state of Minnesota and that applies for, and obtains coverage under this permit. 22. "Non - Stormwater Discharge" means any discharge not composed entirely of stormwater. 23. "Operator" means the person with primary operational control and legal responsibility for the municipal separate storm sewer system. (Minn. R. 7090.0080, subp.10.) 24. "Outfall" means the point source where a municipal separate storm sewer system discharges to a receiving water, or the stormwater discharge permanently leaves the permittee's MS4. It does not include diffuse runoff or conveyances that connect segments of the same stream or water systems (e.g., when a conveyance temporarily leaves an MS4 at a road crossing). 25. "Owner" means the person that owns the municipal separate storm sewer system. (Minn. R. 7090.0080, subp.11.) 26. "Permittee" means a person or persons, that signs the permit application submitted to the Agency and is responsible for compliance with the terms and conditions of this permit. 27. "Person" means the state or any Agency or institution thereof, any municipality, governmental subdivision, public or private corporation, individual, partnership, or other entity, including, but not limited to, association, commission or any interstate body, and includes any officer or governing or managing body of any municipality, governmental subdivision, or public or private corporation, or other entity.(Minn. Stat. § 115.01, subd. 10.) 28. "Pipe" means a closed manmade conveyance device used to transport stormwater from location to location. The definition of pipe does not include foundation drain pipes, irrigation pipes, land drain tile pipes, culverts, and road sub -grade drain pipes. 29. "Pollutant of Concern" means a pollutant specifically identified in a USEPA- approved TMDL report as causing a water quality impairment. Page 36 of 38 Permit No: MNR040000 30. "Receiving Water" means any lake, river, stream or wetland that receives stormwater discharges from an MS4. 31. "Redevelopment" means any construction activity where, prior to the start of construction, the areas to be disturbed have 15 percent or more of impervious surface(s). 32. "Reduce" means reduce to the Maximum Extent Practicable (MEP) unless otherwise defined in the context in which it is used. 33. "Saturated Soil" means the highest seasonal elevation in the soil that is in a reduced chemical state because of soil voids being filled with water. Saturated soil is evidenced by the presence of redoximorphic features or other information. 34. "Significant Materials" includes, but is not limited to: raw materials, fuels, materials such as solvents, detergents, and plastic pellets; finished materials such as metallic products; raw materials used in food processing or production; hazardous substances designated under Section 101(14) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA); any chemical the facility is required to report pursuant to Section 313 of the Emergency Planning and Community Right -to -Know Act (EPCRA); fertilizers, pesticides, and waste products such as ashes, slag, and sludge that have the potential to be released with stormwater discharges. When determining whether a material is significant, the physical and chemical characteristics of the material should be considered (e.g. the material's solubility, transportability, and toxicity characteristics) to determine the material's pollution potential. (40 CFR § 122.26(b)(12). 35. "Small Municipal Separate Storm Sewer System" or "small MS4 ", means all separate storm sewers that are: 1. Owned or operated by the United States, a state, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to state law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under state law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management Agency under section 208 of the CWA that discharges to waters of the United States. 2. Not defined as "large" or "medium" Municipal Separate Storm Sewer Systems pursuant to 40 CFR § 122.26 paragraphs (b)(4) and (b)(7) or designated under paragraph (a)(1)(v). 3. This term includes systems similar to separate storm sewer systems in municipalities, such as systems at military bases, large hospital or prison complexes, and highways and other thoroughfares. The term does not include separate storm sewers in very discrete areas, such as individual buildings. 36. " Stormwater" means stormwater runoff, snow melt runoff, and surface runoff and drainage. (Minn. R. 7090.0080, subp.12.) 37. "Stormwater flow direction" means the direction of predominant flow within a pipe.. Flow direction can be discerned if pipe elevations can be displayed on the storm sewer system map. Page 37 of 38 Permit No: MNR040000 38. "Stormwater Pollution Prevention Program" or "SWPPP" means a comprehensive program developed by the permittee to manage and reduce the discharge of pollutants in stormwater to and from the small MS4. 39. "Structural Stormwater BMP" means a stationary and permanent BMP that is designed, constructed and operated to prevent or reduce the discharge of pollutants in Stormwater. 40. "Total Maximum Daily Load" or "TMDL" means the sum of the individual Waste Load Allocations for point sources and load allocations for nonpoint sources and natural background, as more fully defined in 40 CFR § 130.2, paragraph (i). A TMDL sets and allocates the maximum amount of a pollutant that may be introduced into a water of the state and still assure attainment and maintenance of water quality standards. (Minn. R. 7052.0010 subp. 42) 41. "Waste Load Allocation" or "WLA" means the portion of a receiving water's loading capacity that is allocated to one of its existing or future point sources of pollution, as more fully defined in Code of Federal Regulations, title 40, section 130.2, paragraph (h). In the absence of a TMDL approved by USEPA under 40 CFR § 130.7, or an assessment and remediation plan developed and approved according to Minn. R. 7052.0200, subp. 1.C, a WLA is the allocation for an individual point source that ensures that the level of water quality to be achieved by the point source is derived from and complies with all applicable water quality standards and criteria. (Minn. R. 7052.0010 subp. 45) 42. "Water pollution" means (a) the discharge of any pollutant into any waters of the state or the contamination of any waters of the state so as to create a nuisance or render such waters unclean, or noxious, or impure so as to be actually or potentially harmful or detrimental or injurious to public health, safety or welfare, to domestic, agricultural, commercial, industrial, recreational or other legitimate uses, or to livestock, animals, birds, fish or other aquatic life; or (b) the alteration made or induced by human activity of the chemical, physical, biological, or radiological integrity of waters of the state. (Minn. Stat. § 115.01, subd. 13) 43. "Water Quality Standards" means those provisions contained in Minn. R. 7050 and 7052. 44. "Waters of the State" means all streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, reservoirs, aquifers, irrigation systems, drainage systems and all other bodies or accumulations of water, surface or underground, natural or artificial, public or private, which are contained within, flow through, or border upon the state or any portion thereof. (Minn. Stat. § 115.01, subd. 22.) 45. "Wetlands" are those areas that are inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Constructed wetlands designed for wastewater treatment are not waters of the state. Wetlands must have the following attributes: 1. A predominance of hydric soils 2. Inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence of hydrophytic vegetation typically adapted for life in a saturated soil condition and Page 38 of 38 Permit No: MNR040000 3. Under normal circumstances support a prevalence of such vegetation. (Minn. R. 7050.0186, subp. la.B.) ABBREVIATIONS AND ACRONYMS • BMP - Best Management Practice • CFR —Code of Federal Regulations • CWA — Clean Water Act or the Federal Water Pollution Control Act, 33 U.S.C. §1251 etseq) • DNR — Department of Natural Resources • DWSMA— Drinking Water Supply Management Area • ERPs— Enforcement Response Procedures • IDDE - Illicit Discharge Detection and Elimination • MCM — Minimum Control Measure • MDH — Minnesota Department of Health • MEP —Maximum Extent Practicable • M54 - Municipal Separate Storm Sewer System • NPDES - National Pollutant Discharge Elimination System • ORVW - Outstanding Resource Value Water • SDS — State Disposal System • TMDL - Total Maximum Daily Load • TP —Total Phosphorus • TSS - Total Suspended Solids • USEPA - United States Environmental Protection Agency • WLA—Waste Load Allocation CHAPTER 11 STORM DRAINAGE 1101.0 General. 1101.1 Where Required. Roofs, paved areas, yards, courts, courtyards, vent shafts, light wells, or similar areas having rainwater, shall be drained into a separate storm sewer system, or into a combined sewer system where a separate storm sewer system is not available, or to some other place of disposal satisfactory to the Authority Having Jurisdiction. In no case shall water, from roofs or any building roof drainage flow onto the public sidewalk. In the case of one - and two - family dwellings, storm water shall be permitted to be discharged on flat areas, such as streets or lawns, so long as the storm water shall flow away from the building and away from ad'ommg property, and shall not a a m 1101.2 Storm Water Drainage to Sanitary Sewer Prohibited.. Storm water shall not be drained into sewers intended for sanitary drainage unless approved by the municipal sewer authority or stated elsewhere in this code. the interior of a building or run within a vent or shaft shall be of cast -iron, galvanized steel, wrought iron, brass; copper, lead, Schedule 40 ABS DWV, Schedule 40 PVC DWV, stainless steel 304 or 316L [stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground], or other approved materials. Changes in direction shall be in accordance with Section 706.0. ABS and PVC DWV piping installations shall be installed in accordance with IS 5 and IS 9. 1101.4 Expansion Joints Required. Expansion joints or sleeves shall be provided where warranted by tempera- ture variations or physical conditions. 1101.5 Subsoil Drains. Subsoil drains shall be provided around the perimeter of buildings having basements, cellars, crawl spaces, or floors below grade. Such subsoil drains shall be permitted to be positioned inside or outside of the footing, shall be of perforated or open - jointed approved drain tile or pipe, not less than 3 inches (80 mm) in diameter, and shall be laid in gravel, slag, crushed rock, approved 3/4 of an inch (19.1 mm) crushed, recycled glass aggregate, or other approved porous material with not less than 4 inches (102 mm) surrounding the pipe. Filter media shall be provided for exterior subsoil piping. 1101.5.1 Discharge. Subsoil drains shall be piped to a storm drain, to an approved water course, to the front street curb or gutter, to an alley, or the discharge from the subsoil drains shall be conveyed to the alley by a concrete gutter. Where a continuously flowing spring or groundwater is encountered, subsoil drains shall be piped to a storm drain or an approved water course. 1101.5.2 Sump. Where it is not possible to convey nnar •.uuirnnrn n...e�nu.r nnnr the drainage by gravity, subsoil drains shall discharge to an accessible sump provided with an approved auto- matic electric pump. The sump shall be not less than 15 inches (381 mm) in diameter, 18 inches (457 mm) in depth, and provided with a fitted cover. The sump pump shall have an adequate capacity to discharge water coming into the sump as it accumulates to the required discharge point, and the capacity of the pump shall be not less than 15 gallons per minute (gpm) (0.95 L' /s). The discharge piping from the sump pump shall be not less than 11/2 inches (40 nun) in diameter and have a union or other approved quick - disconnect assembly to make the pump accessible for servicing. 1101.5.3 Splash Blocks. For separate dwellings not serving continuously flowing springs or groundwater, the sump discharge pipe shall be permitted to discharge onto a concrete splash block with a minimum length of 24 inches (610 mm). This pipe shall be within 4 inches (102 mm) of the splash block and positioned to direct the flow parallel to the recessed line of the splash block. 1101.5.4 Backflow Protection. Subsoil drains subject to backflow where discharging into a storm drain shall be provided with a backwater valve in the drain line so located as to be accessible for inspection and maintenance. 1101.5.5 Open Area. Nothing in Section 1101.5 shall prevent drains that serve either subsoil drains or areaways of a detached building from discharging to a properly graded open area, provided that: (1) They do not serve continuously flowing springs or groundwater. (2) The point of discharge is not less than 10 feet (3048 mm) from a property line, (3) It is impracticable to discharge such drains to a storm drain, to an approved water course, to the front street curl? or gutter, or to an alley. 1101.6 Building Sub drains. Building subdrains located below the public sewer level shall discharge into a sump or receiving tank, the contents of which shall be automatically lifted and discharged into the drainage system as required for building sumps. 1101.7 Areaway Drains. Open subsurface space adja- cent to a building, serving as an entrance to the basement or .cellar of a building, shall be provided with a drain or drains. Such areaway drains shall be not less than 2 inches (50 mm) in diameter for areaways at a maximum of 100 square feet (9.29 m2) in area, and shall be discharged in the manner provided for subsoil drains not serving continu- ously flowing springs or groundwater (see Section 1101.5.1). Areaways in excess of 100 square feet (9.29 mZ) shall not drain into subsoil drains. Areaway drains for FIGURE 4.8: ANDOVER CITY CODE TITLE 10, CHAPTER CHAPTER 2 SEWER USE AND SERVICE SECTION: 10 -2 -1: Definitions 10 -2 -2: Use Of Public Sewers Required 10 -2 -3: Private Wastewater Disposal Systems 10 -2 -4: Building Sewers And Connections 10 -2 -5: Contractor Licensing Requirements 10 -2 -6: Discharges Into Public System 10 -2 -7: Interceptors 10 -2 -8: Pretreatment Or Flow Equalizing Facilities 10 -2 -9: Industrial Users 10 -2 -10: Information Required 10 -2 -11: Measurements, Tests And Analyses 10 -2 -12: Special Agreements 10 -2 -13: Power And Authority Of Inspectors 10 -2 -14: Violation; Penalties 10 -2 -1: DEFINITIONS: Unless the context specifically indicates otherwise, the meanings of terms used in this chapter shall be as follows: BIOCHEMICAL OXYGEN DEMAND (BOD): The quantity of oxygen utilized in the biochemical oxidation of organic matter under standard laboratory procedure in five (5) days at twenty degrees centigrade (20 0C), expressed in milligrams per liter. BUILDING DRAIN: That part of the lowest horizontal piping of a drainage system which receives the discharge from soil, waste and other drainage pipes inside the walls of the building and conveys it to the building sewer, beginning five feet (5') outside the inner face of the building wall. BUILDING OFFICIAL: Officer or other designated authority charged with the administration and enforcement of this chapter. BUILDING SEWER: The extension from the building drain to the public sewer or other place of disposal, also called house connection. CITY: City of Andover. EASEMENT: An acquired legal right for the specific use of land owned by others. FLOATABLE OIL: Oil, fat, or grease, in a physical state such that it may separate by gravity from wastewater by treatment in an approved pretreatment facility. A wastewater shall be considered free of floatable oil if it is properly pretreated and the wastewater does not interfere with the collection system. GARBAGE: The animal and vegetable waste resulting from the handling, preparation, cooking and serving of foods. INDUSTRIAL WASTES: The wastewater from industrial processes, trade, or business as distinct from domestic sanitary wastes. NATURAL OUTLET: Any outlet, including storm sewers, into a watercourse, pond, ditch, lake, or other body of surface or ground water. pH: The logarithm of the reciprocal of the hydrogen ion concentration. The concentration is the weight of hydrogen ion, in grams per liter of solution. Neutral water, for example, has a pH value of 7 and a hydrogen ion concentration of 10. PERSON: Any individual, firm, company, association, society, corporation, or group. PROPERLY SHREDDED GARBAGE: The wastes from the preparation, cooking, and dispensing of foods that have been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in public sewers, with no particle greater than one -half inch (1/2 ") in any dimension. PUBLIC SEWER: A common sewer controlled by a governmental agency or public authority. SANITARY SEWER: A sewer that carries liquid and water carried wastes from residences, commercial buildings, industrial plants, and institutions together with minor quantities of ground, storm, and surface waters that are not admitted intentionally. SEWER: A pipe or conduit that carries wastewater. SHALL; MAY: "Shall' is mandatory; "may" is permissive. SLUG: Any discharge of water or wastewater which, in concentration of any given constituent or in quantity of flow, exceeds for any period of duration longer than fifteen (15) minutes more than five (5) times the average twenty four (24) hour concentration of flows during normal operation and shall adversely affect the collection system. STORM DRAIN (Sometimes Termed STORM SEWER): A drain or sewer for conveying water, ground water, subsurface water, or unpolluted water from any source. SUSPENDED SOLIDS: Total suspended matter that either floats on the surface of, or is in suspension in, water, wastewater, or other liquids, and that is removable by laboratory filtering as prescribed in "Standard Methods For The Examination Of Water And Wastewater" and referred to as non - filterable residue. UNPOLLUTED WATER: Water of quality equal to or better than the effluent criteria in effect or water that would not cause violation of receiving water quality standards and would not be benefited by discharge to the sanitary sewers. WASTEWATER: The spent water of a community. From the standpoint of source, it may be a combination of the liquid and water carried wastes from residences, commercial buildings, industrial plants, and institutions, together with any ground water, surface water, and storm water that may be present. WASTEWATER FACILITIES: The structures, equipment, and processes required to collect and carry away domestic and industrial wastes and dispose of the effluent. WATERCOURSE: A natural or artificial channel for the passage of water either continuously or intermittently. (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) 10 -2 -2: USE OF PUBLIC SEWERS REQUIRED: A. Discharge Of Human And Animal Wastes: It shall be unlawful for any person to place, deposit, or permit to be deposited in any unsanitary manner on public or private property within the city, or in any area under the jurisdiction of the city, any human or animal excrement, garbage, or objectionable waste. B. Discharges Into Natural Outlets: It shall be unlawful to discharge to any natural outlet within the city, or in any area under the jurisdiction of the city, any wastewater or other polluted waters. (Amended Ord. 32, 11 -25- 1975) C. Connection To Sewer System Required: The owner of all houses, buildings, or properties used for human occupancy, employment, recreation, or other purposes, situated within the city and abutting any street, alley, or right -of -way in which there is now located or may in the future be located a public sanitary sewer of the city, is hereby required at the owner's expense to install suitable toilet facilities therein, and to connect such facilities directly with the proper public sewer in accordance with the provisions of this chapter within one year after date of due notice to do so. (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) D. Discharges Into System: Discharge of wastewater into building sewers and sanitary sewer system shall be in conformance with the Metropolitan Waste Control Commission rules and regulations. (Amended Ord. 32, 11 -25 -1975) 10 -2 -3: PRIVATE WASTEWATER DISPOSAL SYSTEMS': A. Private Systems Permitted: Where a public sanitary sewer is not available under the provisions of Subsection 10 -2 -2C of this chapter, the building sewer shall be connected to a private wastewater disposal system complying with the Minnesota State Plumbing Code and the provisions of the city private waste disposal ordinance2. See also chapter 4 of this title and sections 3 -3 -5, 12 -12-4 and 13 -4 -61-12 of this code. 2 See chapter 4 of this title. B. Responsibility For Private System: The owner shall operate and maintain the existing private wastewater disposal facilities in accordance with the recommendations of the State Department of Public Health at no expense to the city. C. Availability Of Public Sewer: 1. Nonconforming Private System: At such time as a public sewer becomes available to a property served by a nonconforming private wastewater disposal system, a direct connection shall be made to the public sewer within thirty (30) days. 2. Conforming Private System: At such time as a public sewer becomes available to a property served by a conforming private wastewater disposal system, a direct connection shall be made to the public sewer within a period of time as determined by Council resolution. 3. Cleaning And Filling Of Private System: Immediately upon hookup to the public system, any septic tanks, cesspools, or similar private wastewater disposal facilities may be required, at the discretion of the Building Official, to be cleaned of sludge, collapsed and backfilled with a suitable granular material. (Amended Ord. 32, 11 -25 -1975) 4. Failure To Connect To Public System: If such connection is not made pursuant to this chapter, the city shall enter into a contract with a licensed contractor to have the connection made, and the cost shall be assessed to the property taxes, unless authorized by the City Council to do otherwise. (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) 10 -2 -4: BUILDING SEWERS AND CONNECTIONS: A. Permit To Connect: 1. Permit Required: No unauthorized person shall uncover, make any connections with or opening into, use, alter, or disturb any public sewer or appurtenance thereof without first obtaining a written permit from the Building Official. 2. Classes Of Permits: There shall be two (2) classes of building sewer permits: a) for residential and commercial services; and b) for service to establishments producing industrial wastes. 3. Application For Permit: In either case, the owner or his agent shall make application on a special form furnished by the city. The permit application shall be supplemented by plans, specifications, or other ' See also section 3 -3 -5 of this code. information considered pertinent in the judgment of the Building Official. (Amended Ord. 32, 11 -25 -1975) 4. Fees': A permit and inspection fee as set forth by ordinance for a residential or commercial building sewer permit, or fee as set forth by ordinance for an industrial building sewer permit shall be paid to the city at the time the application is filed, plus an administrative fee as set forth by ordinance to cover processing costs. 5. Approval Of Permit: Upon approval of the permit, the city will furnish the applicant sanitary sewer service stub elevations and location ties. B. Separate Building Sewers Required: A separate and independent building sewer shall be provided for every building except where one building stands at the rear of another, on an interior lot and no private sewer is available or can be constructed to the rear building through an adjoining alley, court, yard, or driveway. C. Construction Specifications: 1. Building sewer pipe and fitting materials and construction shall be in accordance with the current Minnesota Plumbing Code'. If polyvinyl chloride (PVC) pipe is used, it shall meet the current requirements of the American Society for Testing and Materials Designation D3034.73A, SDR- 35 extra heavy wall thickness (minimum wall thickness: 4 "- 0.125 "; 61 1 - 0.180"; 811- 0.24011). 2. The size and slope of the building sewer shall be subject to the approval of the Building Official, and in no event shall the diameter be less than four inches (4 ") and the slope less than one- eighth inch (118 ") per foot. Any variation shall be subject to the approval of the Building Official. The service stub and the building drain shall be uncovered and the differential elevation determined before construction is begun. Where practicable, the building sewer shall be laid on a uniform grade. It shall be the responsibility of the service line contractor to investigate the location of all existing public utility lines including telephone conduits, gas, water and sewer mains, and power conduits which may be in place at the site of the operations. The contractor shall utilize the Gopher State One -Call System before work has begun at those locations. In case the aforementioned public utilities are broken or damaged in any way by the contractor's operations, the utility shall be notified immediately and the damage repaired without delay at no charge to the city. (Amended Ord. 32, 11 -25- 1975; amd. 2003 Code) 1 See subsection 1 -7 -3J of this code. 2 See section 9 -1 -1 of this code. 3. Whenever possible, the building sewer shall be brought to the building at an elevation below the basement floor. No building sewer shall be laid parallel to and within three feet (3') of any bearing wall which might thereby be weakened. The depth shall be sufficient to afford protection from frost. The building sewer shall be laid in straight alignment insofar as possible, and changes in direction shall be made only with properly curved pipes and fittings. Cleanouts will be required at all ninety- degree (90 °) bends and for every seventy -five feet (75) of service line from the service stub to the house connection. Cleanouts will not be required at forty-five degree (450) bends or less. All ninety degree (900) bends will be wide sweep ells. 4. Wherever any building drain is too low to permit gravity flow to the municipal sewer, sewage carried by such drain shall be lifted by approved artificial means and discharged into the building sewer. D. Connections To System: The connection of the building sewer into the public sewer shall conform to the requirements of the Minnesota Building and Plumbing Code', State Water Well Construction Code or other applicable rules and regulations of the city. The sanitary sewer line, if constructed of plastic pressure pipe, must be at least fifty feet (50') away from a private water supply that is greater than fifty feet (50) in depth and at least one hundred feet (100) away from a private water supply that is less than fifty feet (50) in depth. The sanitary sewer line, if constructed of extra heavy cast iron soil pipe, must be at least twenty feet (20) away from a private water supply regardless of the well depth. Any deviation from the prescribed procedures and materials must be approved by the Building Official before installation. If existing sanitary sewer services cannot be found after diligent search or are not located properly for providing the needed service, a saddle type connection shall be made, provided the Building Official or representative approves. Connections of the saddle type shall be made in a smooth, round hole and machine drilled into the main sewer pipe. The fittings used in the connection shall be made in such a manner as to ensure that no protrusion of the fitting into the main sewer pipe shall result. The connector shall fit perfectly to the contour of the inside of the sanitary sewer and shall be specifically designed to fit the particular size main sewer pipe into which the connection is made. The machine - drilled hole shall be of such size to provide one - eighth inch (1/8 ") clearance between the outside of the fitting and the hole. The space thus provided shall be completely filled with joint material. The space between the shoulder of the fittings and the face of the main sewer pipe shall be one - eighth inch (1/8 ") thick, and this space shall be completely filled with joint material. The joint material used for this type house service connection shall be completely waterproof and shall be capable of withstanding any condition of stress or strain likely to be See section 9 -1 -1 of this code. encountered in normal sanitary sewer construction or maintenance. E. Excavations: All excavations in the city streets and rights -of -way shall be in accordance with the city street opening ordinance'. Excavations for building sewer installation shall be adequately guarded with barricades and lights so as to protect the public from hazard. Streets, sidewalks, parkways and other public property disturbed in the course of the work shall be restored in a satisfactory manner to comply with city ordinances. (Amended Ord. 32, 11 -25 -1975) F. Surface Water Runoff: No person shall make connection of roof downspouts, foundation drains, areaway drains, or other sources of surface runoff or ground water to a building sewer or building drain which in turn is connected directly or indirectly to a public sanitary sewer unless such connection is approved by the City Engineer for purposes of disposal of polluted surface drainage. G. Inspections: The applicant for a sewer permit shall notify the Building Official when the building sewer is ready for inspection. The inspection of the installation for the public sewer system to the house shall be made by the Building Official or representative before backfilling. (Amended Ord. 32,11-25-1975; amd. 2003 Code) H. Liability For Costs And Expenses: All costs and expenses incident to the installation and connection of the building sewer shall be borne by the owner. The owner or the person installing the building sewer for said owner shall indemnify the city from any loss or damage that may directly or indirectly be occasioned by said installation. Responsibility For System: 1. The sewer service from the main in the street to the home shall be the property of the owner and protected and maintained by him /her. The city is, however, responsible for: a. Defects in materials within the portion of the service installed under city contract that may become apparent within a one -year period following acceptance and final payment for the construction by the city. b. The city is responsible for any faulty construction within that section of the service installed under city contract. 2. Based upon the information supplied by the property owner or available to the city, the city will make a determination as to whether a problem 1 See title 8, chapter 2 of this code. exists in that portion of the service which is the city's responsibility. If the problem appears to exist in the areas for which the city has no responsibility, the private owners will be completely responsible for correction of the problem. (Amended Ord. 32, 11 -25 -1975) 10 -2 -5: CONTRACTOR LICENSING REQUIREMENTS1: A. Installing, Constructing Sewer Systems: 1. License Required: No person, firm or corporation shall engage in the business of altering, repairing, installing or constructing sanitary sewer connections within the city without first obtaining a license to carry on such occupation from the city. 2. Security: a. Insurance: The applicant shall file with the City Clerk policies of public liability and property damage insurance which shall remain in force and effect during the entire term of said license and which shall contain a provision that they shall not be canceled without ten (10) days' written notice to the city. Public liability insurance shall not be less than one hundred thousand dollars ($100,000.00) for injuries including accidental death to any one person and subject to the same limit for each person in an amount of not less than three hundred thousand dollars ($300,000.00) on account of any one accident, and property damage insurance in the amount of not less than fifty thousand dollars ($50,000.00) for each accident and not less than one hundred thousand dollars ($100,000.00) aggregate. No work shall be done under this license until said insurance policies have been filed and approved by the city. b. Bond: The applicant shall file with the City Clerk for surety a bond guaranteeing the conformance and compliance of work with this chapter. Said bond shall be in an amount of two thousand dollars ($2,000.00). The city shall hold said bond for one year following the license period. Failure to comply with provisions and requirements of this chapter shall result in forfeiture of the bond. 3. Filing And Review Of Application: Application for license shall be filed with the City Clerk and shall be reviewed and subject to the approval of the city. 4. Revocation Or Refusal To Review License: Any installation, construction, or alteration of a sanitary sewer connection by a licensee in violation of any provision of this chapter, or refusal on the part of a See also sections 10 -1 -7 and 10 -4 -2, amendment 7080.0700 of this title. licensee to correct such defective work, shall be cause for revocation of or refusal to renew a license. Said license may be revoked or refused for renewal by the city at any time for cause which shall be documented in writing. (Amended Ord. 32, 11 -25 -1975) B. Sewage Pumpers: 1. License Required: No person, firm or corporation designated as sewage pumpers shall discharge sludge into the designated discharge location within the city without first obtaining a license from the city to carry on such occupation. 2. Filing And Review Of Application: Application for license shall be filed with the City Clerk and shall be reviewed and subject to the approval by the city. C. Additional Requirements: 1. Application For License: Applications for such license shall be made annually on a form provided by the City Clerk. 2. Term Of License: Licenses shall be in effect from January 1 to December 31. 3. Renewal Of Licenses: All licenses required in this section shall be renewed annually. (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) D. Hearing On Revocation Or Refusal To Review Licenses: Before any license issued under the provisions of this section may be revoked or renewal refused, the licensee shall be given a hearing by the City Council to show cause why such license should not be revoked or refused. Notice of the time, place and purpose of such hearing shall be in writing. (Amended Ord. 32,11-25-1975) 10 -2 -6: DISCHARGES INTO PUBLIC SYSTEM: A. Storm And Surface Water Runoff: 1. No person shall discharge or cause to be discharged any unpolluted waters such as storm water, ground water, roof runoff, subsurface drainage, or cooling water to any sewer. Storm water runoff from limited areas, which may be polluted at times, may be discharged to the sanitary sewer by permission of the City Engineer. 2. Storm water other than that exempted under Subsection Al of this section and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers or to a natural outlet approved by the City Engineer and other regulatory agencies. Unpolluted industrial cooling water or process waters may be discharged to a storm sewer or natural outlet on approval of the City Engineer and other regulatory agencies. B. Prohibited Discharges: No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers: 1. Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas. 2. Any waters containing toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any waste treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the wastewater treatment plant. 3. Any waters or wastes having a pH lower than 5.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the wastewater works. 4. Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the wastewater facilities such as, but not limited to, ashes, bones, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, un- ground garbage, whole blood, paunch, manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders. C. Discharges Subject To Review: 1. The following described substances, materials, waters, or waste shall be limited in discharges to municipal systems to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment, will not have any adverse effect on the receiving stream, or will not otherwise endanger lives, limbs, public property, or constitute a nuisance. The City Engineer may set limitations lower than the limitations established in the regulations below if in his opinion such more severe limitations are necessary to meet the above objectives. In forming his opinion as to the acceptability, the City Engineer shall give consideration to such factors as the quantity of subject waste in relation to flows and velocities in the sewers, materials of construction of the sewers, the degree of treatability of the waste in the wastewater treatment plant, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or wastewaters discharged to the sanitary sewer which shall not be violated without approval of the City Engineer are as follows: (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) a. Wastewater having a temperature higher than one hundred fifty degrees Fahrenheit (150 °F) (65° Celsius). b. Wastewater containing more than twenty -five milligrams per liter (25 mg /1) of petroleum oil, non - biodegradable cutting oils, or product of mineral oil origin. c. Wastewater from industrial plants containing floatable oils, fat, or grease. d. Any garbage that has not been properly shredded. Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments, or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers. e. Any waters or wastes containing iron, chromium, copper, zinc, and similar objectionable or toxic substances to such degree that any such material received in the composite wastewater at the wastewater treatment works exceeds the limits established by the Metropolitan Waste Control Commission for such materials. f. Any waters or wastes containing odor - producing substances exceeding limits that may be established by the City Engineer. g. Any radioactive wastes or isotopes of such half -life or concentration as may exceed limits established by the City Engineer in compliance with applicable state or federal regulations. h. Quantities of flow, concentrations, or both which constitute a "slug" as defined in Section 10 -2 -1 of this chapter. i. Waters or wastes containing substances which are not amenable to treatment only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters. j. Any waters or wastes that, by interaction with other waters or wastes in the public sewer system, release obnoxious gases from suspended solids that interfere with the collection system or create a condition deleterious to structures and treatment processes. 2. If any waters or wastes are discharged or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in Subsection C1 of this section and which, in the judgment of the City Engineer may have a deleterious effect upon the wastewater facilities, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the city engineer may: a. Reject the wastes; b. Require pretreatment to an acceptable condition for discharge to the public sewers; c. Require control over the quantities and rates of discharge; and /or d. Require payment to cover added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of Chapter 3 of this Title. 3. When considering the above alternatives, the Building Official shall give consideration to the economic impact of each alternative on the discharger. If the Building Official permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the Building Official. D. Sludge From Private Systems: Sludge from private sewage disposal systems can be discharged into the sanitary sewer system at a designated location established by the County. (Amended Ord. 32, 11 -25 -1975; amd. 2003 Code) 10 -2 -7: INTERCEPTORS: Grease, oil, and sand interceptors shall be provided when, in the opinion of the Building Official, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts, as specified in Subsection 10- 2 -6C1c of this chapter, or any flammable wastes, sand, or other harmful ingredients; except, that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Building Official and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors, the owner shall be responsible for the proper removal and disposal by appropriate means of the captured material and shall maintain records of the dates and means of disposal that are subject to review by the Building Official. Any removal and hauling of the collected materials not performed by owner personnel must be performed by waste disposal firms currently licensed by the city. (Amended Ord. 32, 11 -25 -1975) 10 -2 -8: PRETREATMENT OR FLOW EQUALIZING FACILITIES: Where pretreatment or flow equalizing facilities are provided or required for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense. (Amended Ord. 32, 11 -25 -1975) 10 -2 -9: INDUSTRIAL USERS: When required by the Building Official, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable structure together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling, and measurement of the wastes. Such structure, when required, shall be constructed in accordance with plans approved by the Building Official. The structure shall be installed by the owner at his /her expense and shall be maintained by him /her so as to be safe and accessible at all times. (Amended Ord. 32, 11 -25 -1975) 10 -2 -10: INFORMATION REQUIRED: The Building Official may require a user of sewer services to provide information needed to determine compliance with this chapter. These requirements may include: A. Wastewater discharge peak rate and volume over a specified time period. B. Chemical analyses of wastewaters. C. Information on raw materials, processes, and products affecting wastewater volume and quality. D. Quantity and disposition of specific liquid, sludge, oil, solvent, or other materials important to sewer use control. E. A plot plan of sewers of the user's property showing sewer and pretreatment facility location. F. Details of wastewater pretreatment facilities G. Details of systems to prevent and control the losses of materials through spills to the municipal sewer. (Amended Ord. 32, 11 -25 -1975) 10 -2 -11: MEASUREMENTS, TESTS AND ANALYSES: All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of "Standard Methods For The Examination Of Water And Wastewater" published by the American Public Health Association. Sampling methods, location, times, durations, and frequencies are to be determined on an individual basis subject to approval by the Building Official. (Amended Ord. 32, 11 -25 -1975) 10 -2 -12: SPECIAL AGREEMENTS: No statement contained in this chapter shall be construed as preventing any special agreement between the city and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the city for treatment. Special agreements or arrangements and all parts of this chapter shall be in conformance with the Metropolitan Waste Control Commission rules and regulations. (Amended Ord. 32, 11 -25 -1975) 10 -2 -13: POWER AND AUTHORITY OF INSPECTORS: The Building Official and other duly authorized employees of the city, upon proper identification, shall be permitted to enter upon all properties for the purpose of inspections, observation, measurement, sampling and testing in accordance with the provisions of this chapter. (Amended Ord. 32, 11 -25 -1975) 10 -2 -14: VIOLATION; PENALTIES: A. Notice Of Violation: Any person found to be violating any provision of this chapter shall be served by the Building Official with written notice stating the nature of the violation and providing a reasonable time limit for the satisfactory correction thereof. The offender shall, within the period of time stated in such notice, permanently cease all violations. B. Violation; Penalty: Any person who shall continue any violation beyond the time provided for in the written notice shall be guilty of a misdemeanor and, upon conviction thereof, shall be punished according to prevailing state laws. Each day in which any such violation shall continue shall be deemed a separate offense. C. Liability For Violation: Any person violating any of the provisions of this chapter shall become liable to the city for any expense, loss or damage occasioned the city by reason of such violation. (Amended Ord. 32, 11- 25 -1975)