MS4 Pollution Reduction Plan (PRP) Boyertown Borough. August 2, Spotts, Stevens and McCoy Engineers and Environmental Consulting

Transcription

1 S4 Pollution Reduction Plan PRP Boyertown Borough August 2, 217 Spotts, Stevens and ccoy Engineers and Environmental Consulting

2 S4 Pollution Reduction Plan PRP Prepared for: Boyertown Borough 1 South Washington Street Boyertown PA August 2, 217 Prepared by: Spotts, Stevens and ccoy Kent D. orey, P.E. 217 Spotts, Stevens and ccoy SS File

3 Spotts, Stevens and ccoy Engineering and Environmental Consulting S4 Pollution Reduction Plan PRP Boyertown Borough Table of Contents GENERAL DESCRIPTION... 1 WATERSHEDS AND IPAIRENTS... 1 POLLUTION REDUCTION PLAN PRP... 1 BP INSTALLATION AND FINANCING PLAN... 3 List of Appendices Pennsylvania Department of Environmental Protection PaDEP Requirements Table... Appendix A Nutrient Separating Baffle Box T by Suntree Technologies Brochure... Appendix B aps 1 through 3... Appendix C SS File

4 Spotts, Stevens and ccoy Engineering and Environmental Consulting GENERAL DESCRIPTION Boyertown Borough the S4 is located in Berks County, Pennsylvania immediately north of Trappe Borough and primarily along the west side of Boyertown Creek. The Borough is primarily residential with a mix of commercial and manufacturing land uses. The Urbanized Area UA from the 21 census covers the entire Borough. The extents of the UA are shown on ap 1. All maps associated with this document may be found in Appendix B. Boyertown Borough is located at the eastern edge of Berks County. The Borough is surrounded by Colebrookdale Township. The Borough is roughly.8 square miles. As of 21, the population is 4,55 people. There is currently 1.75 miles of roadway in addition to storm water system, public water and sewer systems maintained by the Borough. WATERSHEDS AND IPAIRENTS There are three primary watersheds within the Borough; Ironstone Creek, inister Creek and Swamp Creek. The Swamp Creek is identified by the Pennsylvania Department of Environmental Resources PaDEP in the requirements table Appendix A of this document as impaired. The overall watersheds are shown on ap 2. Impaired Downstream Waters Name Impairment Appendix as Identified in the Permit Swamp Creek Siltation E PaDEP requires that the S4 address each impairment in accordance with the appendix noted. For those impairments that require the Borough to address impairments of Sediment Siltation, the S4 is required to prepare a Pollution Reduction Plan PRP that demonstrates that the pollutant reductions lbs/year proposed in the PRP have been achieved within 5 years following the PaDEP s approval of coverage under the General Permit. Sediments shall be reduced by 1%. The following pollution reduction plan demonstrates that Boyertown Borough will reduce sediments by 1% in accordance with the General Permit requirements. POLLUTION REDUCTION PLAN PRP apping Sewersheds As required by the original permit, Boyertown Borough had mapped their entire storm sewer system prior to the current permit renewal. In order to meet the requirements of the permit renewal for load reductions, efficiently map sewersheds, and provide a PRP that identifies Best anagement Practices BPs that can meet the required 1% sediment reductions, the Borough has taken a very systematic approach to delineating storm sewersheds. SS File Page 1

5 Spotts, Stevens and ccoy Engineering and Environmental Consulting The overall storm sewersheds were delineated first, parsing out areas not within the UA as well as areas not within the impaired watershed and only upstream of the lowest outfall said area. These maps were not finalized nor were existing loading calculations finalized until the Borough, along with its engineer, identified potential areas for BPs. One of the most efficient and cost effective means to address sediment reduction is through the conversion of conventional detention basins to extended detention wet basins or naturalized basins that more efficiently remove pollutants. Unfortunately, there are no detention basins that could serve this purpose. In addition, the only open space in which a naturalized facility could be located, is owned by a manufacturing company. The Borough tried to obtain permission to utilize the space but unfortunately, obtaining permission would have been drawn out too long by the employee owned company. The Borough also sought to partner with adjoining Colebrookdale Township but unfortunately they were not interested in collaboratimg with the Borough. Existing Loading and Reduction Calculations The Borough Engineer chose to use the simplified method excel spreadsheet for the calculations. The data source for the impervious and pervious areas were developed from the 211 National Land Cover Database NLCD 211. The BP effectiveness utilized in this analyses are taken from the PaDEP BP Effectiveness Values Table document 38-P-BCW1m. Total Watershed Exisitng Land Cover Area Ac Loading Rate lbs/ac/yr Sediment Loading lbs/yr Impervious Pervious Required Sediment Reduction lbs/yr 1% Total Trib1337 Existing Sediment Loading Proposed BP Land Cover Area Ac Loading Rate lbs/ac/yr Sediment Loading lbs/yr Impervious Pervious Sediment Reduction lbs/yr 8% Conclusion: The removal of 23,575 lbs/yr by the BP is greater than the 1% reduction requirement 17,256 lbs/year and therefore the design meets the permit requirements for this watershed. SS File Page 2

6 Spotts, Stevens and ccoy Engineering and Environmental Consulting BP INSTALLATION AND FINANCING PLAN Background Boyertown Borough realizes the importance to establish a designed infrastructure to reduce pollution being transmitted to our waterways and, even more importantly, properly plan for the installation of such facilities, including how to finance the costs of these installations. A proper sequencing plan of installations and a pro-active financing plan increase the potential for success to accomplish our goals of reducing our waterway pollution. As noted by the above calculations, Boyertown Borough has identified that by installing a hydrodynamic structure such as the Nutrient Separating Baffle Box T by Suntree Technologies with removal rates of 8% Total Suspended Solids, the 1% reduction rate may be achieved. The above calculations demonstrate that by placing such a facility at the northern end of North Walnut Street, the reduction requirements would be exceeded. Since this location is within the cartway of the street, there will be substantial costs in addition to the structure, utility relocation, paving restoration, etc. Therefore, during the first year of the permit, the Borough will refine the design by surveying the street and the utilities and refine the calculations if possible so the location of the facility is located in the best location to minimize cost. Without grants or other financial assistance, the Borough s anticipated cost to install the hydrodynamic structure to be as much as $2, assuming that substantial utility relocation and restoration is warranted. The Borough will own and maintain the BP in accordance with proper BP maintenance protocols. The estimated annual maintenance cost is approximately $4,. Goal The goal of the Boyertown Borough BP Installation and Financing Plan is to lay out a specific set of criteria to install and finance our Best anagement Practice sites to achieve measurable milestones and goals. This set of specific criteria shall be kept simple for continuity purposes with any staff changes yet detailed enough to provide accountability by the Borough. The program shall be arranged to allow some flexibility in the event of extenuating circumstances taking place outside of the Boyertown Borough Pollution Reduction Plan that may conflict with or impact the ability to implement this plan. Once the BPs are completed, routine maintenance will likely be completed by Borough staff. However, should any maintenance or repairs extend beyond their capabilities, the Borough will hire a contractor that is capable of providing the appropriate services. Strategies to Achieve easurable Goals The next S4 Permit period will contain five years from arch 16, 218 through arch 15, 223. This allows time for the Borough to plan, prepare, and arrange financing to complete the required BP facility within the five year period. Timing of Projects The facility will likely be installed in 222 to minimize the overall financial impact to the Borough in any given year. However, it will be installed and functioning by the end of the permit period. SS File Page 3

7 Spotts, Stevens and ccoy Engineering and Environmental Consulting No BP facilities will be installed in the first year of the permit cycle. This will allow the Borough to properly prepare for the projects, complete topographical surveys, avoid utility conflicts and adjust for any design modifications. This one year period will also allow the Borough to reinforce the financial planning of these projects. ethod of Installation Boyertown Borough will publicly bid the projects and their engineer will oversee the construction. Financing All material, labor and equipment costs associated with the installation of these facilities will be paid for pay for the installation of the facilities from the Capital Improvement General Fund. The Capital Improvement General Fund is funded by the General Fund through annual transfers in the range of $2, to $3,. Presently, Boyertown Borough has not created a Storm Sewer User Fee. If it is determination that the funding source must be altered, that determination will be made depending upon the most prudent course of action in implementing the PRP. Also, if grants or other funding sources are found, the Borough may seek such assistance to fund the project. SS File Page 4

8 Appendix A Pennsylvania Department of Environmental Protection PaDEP Requirements Table

9 S4 Name NPDES ID Individual Permit Required? Berks County ALSACE TWP PAG13351 No AITY TWP PAG No BALLY BORO PAG13352 No Reason Impaired Downstream Waters or Applicable TDL Name Schuylkill River Unnamed Tributaries to Schuylkill River Requirements Appendix C-PCB 4a Other Causes of Impairment Other Habitat Alterations, Water/Flow Variability 4c, TDS 4a Laurel Run Appendix E-Siltation 5 Other Habitat Alterations 4c Bernhart Creek Antietam Creek Appendix B-Pathogens 5 TDS 4a Unnamed Tributaries to Schuylkill River Cause Unknown 5 Schuylkill River Schuylkill River PCB TDL Green Lane Reservoir Appendix C-PCB 4a Appendix C-PCB 4a Appendix E-Organic Enrichment/Low D.O. 4a BECHTELSVILLE BORO PAI13359 Yes SP, IP BERN TWP PAG No BIRDSBORO BORO PAG13353 No BOYERTOWN BORO PAG No BRECKNOCK TWP PAI13358 Yes SP, IP Swamp Creek Appendix E-Siltation 5 Cause Unknown 5 Schuylkill River Schuylkill River PCB TDL Appendix C-PCB 4a Appendix C-PCB 4a Tulpehocken Creek Appendix E-Nutrients 5 Unnamed Tributaries to Plum Creek Appendix C-Pesticides 5 Irish Creek Appendix E-Siltation 5 Unnamed Tributaries to Schuylkill River Appendix E-Nutrients, Siltation 5 Schuylkill River Schuylkill River PCB TDL Appendix C-PCB 4a Appendix C-PCB 4a Unnamed Tributaries to Schuylkill River Appendix E-Siltation 5 Swamp Creek Appendix E-Siltation 5 Cause Unknown 5 Wyomissing Creek Appendix E-Siltation 4a Cause Unknown 4a, Water/Flow Variability 4c Schuylkill River Chesapeake Bay Nutrients/Sediment Appendix C-PCB 4a Appendix D-Nutrients, Siltation 4a Little uddy Creek Appendix E-Siltation 5 CENTERPORT BORO No Irish Creek Appendix E-Siltation 5 Plum Creek Appendix E-Siltation 5 Page 26 of 16 Revised 8/2/217

10 Appendix B Nutrient Separating Baffle BoxT by Suntree Technologies Brochure

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13 Appendix C aps 1 through 3

14 ap 1 Location ap Boyertown Borough Berks County, PA Stream Road Watershed Ironstone Creek WATER ST WATER ST WATER ST IRONSTONE CREEK READING AV Boyertown Borough NORTH READING AV SWAP CREEK PHILADELPHIA AV Trib 1337 to Swamp Creek Berks County ontgomery County UrbanizedArea unicipal Boundary County Boundary Surrounding unicipalities ± G:\projects\w1\w15178\w24\projects\ap_1_Locationap.mxd Berks County Douglass Township Colebrookdale Township Ironstone Creek SECOND ST INISTER CREEK ADISON ST Trib 1324 to inister Creek Douglass Township 85 1,7 Feet 1 inch = 1, feet Data Sources: Watersheds, ERRI, 27 unicipal Boundaries, PENNDOT, 214 Stream, NHD USGS, 212 Roads, PENNDOT, 213 SPOTTS STEVENS CCOY Engineering and Environmental Services Reading Lehigh Valley Central Pennsylvania P: F: ssmgroup.com 8/4/17

15 Boyertown Foundary Co. Site ID: SWAP CREEK Unicast Co. Site ID: AV RE AD IN G 4 SWAP CREEK RT H A RE 39 SE CO ND ST SWAP CREEK ± 5 1, Feet 1 inch = 3 feet 36 INISTER CREEK ISO N Douglass Township 6 38 G:\projects\w1\w15178\w24\projects\ap_2_ Overallap.mxd 41 Berks County 37 ST 47 Colebrookdale Township AV ISO N Road 1 DE LP HI A Watershed unicipal Boundary 37 PH IL A A D Storm Sewersheds 2ft Interval Contour 37 ST NPDES Property Parcels ER AT W Stream 36 Sw a 45 Storm anhole Storm Sewer Pipe Storm Sewer Inlet ek 34 4 ne ST re 38 NG DI V A ER AT W C 38 4 ST to ST 44 4 ER AT W Iro ns A D Boyertown Borough IRONSTONE CREEK Outfall Drains to Unimpaired Stream ek re pc m Trib 1337 to 43 Outfall Drains to Impaired Stream NO ap 2 Overall Boyertown Borough Berks County, PA b1 324 to i r T inis t 35 Data Sources: Storm Sewer System, Boyertown Boro, 212 Watersheds, ERRI, 27 unicipal Boundaries, PENNDOT, 214 Stream, NHD USGS, 212 Roads, PENNDOT, e r Creek SS GROUP, INC. Engineering and Environmental Services Reading Lehigh Valley Central Pennsylvania P: /4/17 F: ssmgroup.com

16 4 SPRING ST 38 EIGHTH ST ap 3 BP Sewershed Boyertown Borough Berks County, PA Colebrookdale Township BP Location Colebrookdale Township Outfall Drains to Impaired Stream Outfall Drains to Unimpaired Stream SCHAEFFER ST Storm anhole Storm Sewer Inlet Storm Sewer Pipe Stream G:\projects\w1\w15178\w24\projects\ap_3_BP.mxd SECOND ST Berks County 43 FAIRVIEW ST TERRACE ST Boyertown Borough PHILADELPHIA AV Boyertown Borough COLLEGE ST 39 THIRD ST WALNUT ST 41 READING AV 41 N WALNUT ST FIFTH ST 39 NORTH READING AV FOURTH ST 38 BOYER ST 4 CHESTNUT ST SHANER ST WASHINGTON ST 36 SEVENTH ST Storm Sewersheds Road unicipal Boundary Surrounding unicipalities ± 25 5 Feet 1:3, Data Sources: Storm Sewer System, Boyertown Boro, 212 Watersheds, ERRI, 27 unicipal Boundaries, PENNDOT, 214 Stream, NHD USGS, 212 Roads, PENNDOT, 213 SPOTTS STEVENS CCOY Engineering and Environmental Services Reading Lehigh Valley Central Pennsylvania P: F: ssmgroup.com 8/3/17

17 SPOTTS STEVENS CCOY ssmgroup.com READING 147 North Park Road; PO Box 637 Reading PA P: F: LEHIGH VALLEY Roma Corporate Center 165 North Cedar Crest Boulevard; Suite 52 Allentown PA 1814 P F HARRISBURG 195 arket Street Camp Hill, PA 1711 P F