MS4 Pollution Reduction Plan (PRP) Perkiomen Township August 2017 Revised January 2021
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MS4 Pollution Reduction Plan (PRP) Perkiomen Township August 2017 Revised January 2021 Spotts, Stevens and McCoy | Engineers and Environmental Consulting MS4 Pollution Reduction Plan (PRP) Prepared for: Perkiomen Township 1 Trappe Road Collegeville PA 19426 August 2017 Revised January 2021 Prepared by: Spotts, Stevens and McCoy 1-11-21 Kent D. Morey, P.E. 2021 Spotts, Stevens and McCoy SSM File 100685.0141 MS4 Pollution Reduction Plan (PRP) Perkiomen Township August 2017 Revised January 2021 Table of Contents GENERAL DESCRIPTION SECTION A – PUBLIC PARTICIPATION SECTION B – MAPS SECTION C – POLLUTANTS OF CONCERN SECTION D – DETERMINE EXISTING LOADING FOR POLLUTANTS OF CONCERN Sewershed Mapping Existing Loading and Reduction Calculations SECTION E – SELECT BMPS TO ACHIEVE THE MINIMUM REQUIRED REDUCTIONS IN POLLUTANT LOADING SECTION F – IDENTIFY FUNDING MECHANISM(S) Background Goal Strategies to Achieve Measurable Goals Timing of Projects Method of Installation Financing SECTION G – IDENTIFY RESPONSIBLE PARTIES FOR OPERATION AND MAINTENANCE (O&M) OF BMPS SECTION H - STREAM RESTORATION FEASIBILITY STUDY SSM File 100685.0041 GENERAL DESCRIPTION Perkiomen Township (the MS4) is located in the Perkiomen Valley of Montgomery County, Pennsylvania. The Township is bordered by the Perkiomen Creek / Skippack Township to the east; Collegeville and Trappe Boroughs and Upper Providence to the south; Limerick Township to the west; and Lower Frederick Township and Schwenksville Borough to the north. The northern portion of the Township is located north of the confluence of Perkiomen Creek and East Branch Perkiomen Creek. The Township is roughly 4.9 square miles. As of 2010, the population is 9,139 people. The Township is a Second-Class Township governed by a five-member Board of Supervisors. There is currently 28.06 miles of roadway maintained by the Township. The Township is primarily residential with a mix of commercial, manufacturing and institutional (school) land uses. The Urbanized Area (UA) from the 2010 census covers the entire Township. The extents of the UA are shown on Map #1. All maps associated with this document may be found in Section B. The Township has decided to revise its original Pollution Reduction Plan (PRP) prepared and submitted to PaDEP in 2017. Subsequent to that submission, PaDEP provided comments of the plan and circa late 2018 it was discovered that a sanitary sewer line next to a stream had become exposed. The stream is Tributary 01164 and the exposed sewer occurred approximate 180-190 ft upstream of its confluence with Trib 01163 (aka Landis Creek). The Township recognized that work would be required in the stream to repair the stream embankment over the sewer line and at the same time it may be possible to utilize stream restoration as a Best Management Practice (BMP) to achieve its permit requirements and forego conversion of the detention basins in Perkiomen Green as suggested by the 2017 PRP. This revised report includes revisions as required by PaDEP’s review and demonstrates that the stream restoration is a feasible alternative. SECTION A – PUBLIC PARTICIPATION The newspaper ad and any public comments will be added he SSM File 100685.0041 SECTION B - MAPS SSM File 100685.0041 C E D A R RD E UPPER SALFORD AV RK P TOWNSHIP PA EN N Y P LOWER A 3 C IB 0130 K FREDERICK TR ER R TOWNSHIP D D R ER IEB M D A LOWER I N SALFORD S T R TRIB TOWNSHIP E EAST BRANCH E T 01303 RD PERKIOMEN AN AY M D W DE CREEK A E AL O V H R I SCHWENKSVILLE R H D IT M BOROUGH S TRIB 2 N 01302 D N P RA CH A E S B R K P 02 V K T E 3 I S 1 E IO P R 0 P N M A K E A E K B U N I C I E E C O RE R R K MEN C T E P E I K K E L MINE PERKE IOMEN X S I D N RUN R A CREEK ICK L G R E IME T L M ONRD RD MINE RUN TRIB RD R E L 01167 IL M N E L RD A W IGH G IE ALE D L E V R RS R PERKIOMEN YE W ME RKLEY R LIMERICK I A D O CREEK S M T M T TOWNSHIP E R D R D D R K R P N N E D L LA LL P R E A K F R S IO T E M M IT Z TRIB E O R D N F C O O 01165 65 R X 11 R 0 E D H B E TAL R TRI S K L E IO A E N T AV ISON L H ARR N H B L D V R D E R LANDIS E D IN L L CREEK TRIB A P TRIB 011 VE I 64 G E A H PL S 01163 N A I M N T W R O M A T WE RD LS H TRIB 01163 RIB 01 EEK/T 16 3 L ANDIS CR N RD ADRIA ROMAN DR H RD BRIDG FRENC E ST E PANEPINTO DR V A R E PERKIOMEN T A G D R CREEK R LV G E E B T E HIR S SKIPPACK NS EK E L P R O L TOWNSHIP C D U AL K E A D K D O BROO I R L K L Y OAD SIDE R T P R C S RR Y D BE RR CO R S L L E B L N O E AY B I IN N E D M V Y E O A R L R G A P O L A M T D O E D K K S D R T R D R S H G D E A LODAL K N R M L I L O O A R D CREEK M S N S N E R N H O N E U J Y D W M JA C A E U R R R COB OD R T I B O D O W E M N E R A E N LN N R N H K O Y I A G D W W H A MED TRIB ORTHR NNA S N ID R U G TM C E A H N O RD R D R S DR O L E U L O G MP N E A N C D S R G T TS QU W E RG E W A BU E O R C S E D O A O S C N D M R R K A R A A D N R T G L R N B D E R Y E D R R D D PERKIOMEN RY B FO LV R CREEK D G D E R D T R U D E D R G L R RD O P A N E SCH L U P E E ND USE R P O LHO O R O A L O R H K H T O SC I G U O R USKET CT S M E M EENE R B D E SCHOOLHOUSE L N V D RUN D T R R 7 N L 14 O 01 T B H IL TRI A M N UPPER L C E PROVIDENCE I E C N TOWNSHIP B N H T E N E E T O R N C B H R N E E 6 HNS RD BRIDG ROA 4 RA Y I D R A R 1 O 01 A L A IB L S D Y R T T d PERKIOMEN x P m E . 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