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Stormwater plans BASIC STORMWATER POLLUTION PREVENTION PLAN NARRATIVE NYSDEC �P-D-'15-002 i 1 Prepared for: Parker & Hammond Dev., LLC I Selective Clearing Project Silver Circle Tax Map # 309.17-1-18.4 Town of Queensbury Warren County, New York Prepared by: Hutchins Engineering 169 Haviland Road Queensbury, NY 12804 January 9, 2018 f Hutchins Engineering To: -Tc�Q P6 Via. Mail -i:ve P c{'-p Date: CERTIFICATION STATEMENT To be signed by contractors performing the site construction. I hereby certify under penalty of law that I understand and agree to comply with the terms and conditions of the SWPPP and agree to implement any corrective actions identified by the qualified inspector during a site inspection. I also understand that the owner or operator must comply with the terms and conditions of the most current version of the New York State Pollutant Discharge Elimination System ("SPDES") general permit for stormwater discharges from construction activities and that it is unlawful for any person to cause or contribute to a violation of water quality standards. Furthermore, I am aware that there are significant penalties for submitting false information that I do not believe to be true, including the possibility of fine and imprisonment for knowing violations. Name: Company: Title: I Signature: Date: Each Sub-Contractor or additional Contractors completing site work must also sign below: Name: Company: Title: Area of Work & SWPPP Responsibilities: Signature: Date: Name: Company: Title: Area of Work & SWPPP Responsibilities: Signature: Date: TABLE OF CONTENTS 1.0 PROJECT DESCRIPTION .............................................................................. 1 2.0 EXISTING SITE CONDITIONS ........................................................................ 1 3.0 NYSDEC REQUIREMENTS ........................................................................... 1 4.0 ENDANGERED SPECIES .............................................................................. 1 5.0 ARCHAEOLOGICAL RESOURCES & HISTORIC PLACES ......................................... 1 6.0 CONSTRUCTION PHASE EROSION PRACTICES ................................................... 1 7.0 TEMPORARY EROSION & SEDIMENT CONTROL MEASURES ................................. 2 8.0 CONTROL OF LITTER, CONSTRUCTION DEBRIS &CONSTRUCTION CHEMICALS 2 9.0 SEQUENCE OF CONSTRUCTION ........................................................................ 2 i 10.0 MAINTENANCE OF TEMPORARY EROSION & SEDIMENT CONTROL DEVICES ......... 3 11.0 OPERATION & MAINTENANCE PLAN ................................................................... 3 I 12.0 PERMANENT EROSION CONTROL ...................................................................... 3 i 1.0 PROJECT DESCRIPTION The project consists of the selective clearing of a vacant 7.86-acre parcel at the end of Silver Circle, in the Town of Queensbury, Warren County, New York. The stumps will be removed and these areas will be regraded and revegetated. Project disturbance/selective clearing totals 7.00 acres. 2.0 EXISTING SITE CONDITIONS The project site is densely vegetated with a mixture of small to medium sized conifers and dense underbrush. The parcel is nearly flat, with slopes of 1-3% on the westerly portion. Site soils are mapped as Oakville loamy fine sand, HSG-A which are deep, well drained sandy soils on outwash plains. 3.0 NYSDEC REQUIREMENTS J As this is a project with soil disturbances exceeding 1-acre, NYSDEC SPDES requirements for stormwater discharges from construction activities in accordance with GP-0-15-002 must be applied to the project. Specifically, a Basic Stormwater Pollution Prevention Plan including erosion control practices must be developed and implemented. 4.0 ENDANGERED SPECIES In accordance with Part I.F.4 of GP-015-0-002, discharges from construction activities that adversely affect a listed or proposed to be listed endangered or threatened species are ineligible for coverage under the general permit. According to NYSDEC EAF Mapper, there are no species of animal or associated habitats listed by State or Federal government as threatened or endangered. 5.0 ARCHAEOLOGICAL RESOURCES & HISTORIC PLACES In accordance with Part I.F.8 of GP-015-0-002, discharges from construction activities that have the potential to affect historic property are ineligible for coverage under the general permit. An inquiry is being made to NYSOPRHP and the determination letter will be added to the appendix of this report when it is received. 6.0 CONSTRUCTION PHASE EROSION PRACTICES Practices to be implemented during construction for erosion and sediment control include silt fencing and temporary sediment basins in various portions of the total disturbed area. Silt ifencing will be placed across slopes (on the contour) in all areas downgrade of disturbed areas. Temporary sediment traps will be utilized in areas where construction phase runoff concentrates. 7.0 TEMPORARY EROSION & SEDIMENT CONTROL MEASURES Erosion and sediment control measures will be incorporated into the construction of the project. These practices will comply with the New York State Department of Environmental Conservation publication entitled "New York Guidelines for Urban and Sediment Control' (the blue book). Separate erosion and sediment controls will be installed for each phase of construction. The following temporary erosion and sediment control devices are to be utilized: 1. Sediment Control Fence Silt Fence shall be used to control erosion from sheet flow on slopes not to exceed 1 on 3. Concentrated flows shall not be directed toward the silt fence. The silt fence must be installed parallel to the contour lines to eliminate drainage along the fence. 2. Temporary Seeding Land that is stripped of vegetation will be seeded and planted as soon as possible. Any area that will remain cleared but not under construction for four days or longer will be seeded with a ryegrass mixture and mulched to stabilize soil until construction resumes. 3. Temporary Diversion Swales Temporary diversion swales shall be constructed either to divert clean stormwater runoff from newly graded areas or to direct sediment laden runoff to a sediment trapping device. 4. Dust Control Measures for dust control during construction shall be implemented as needed. Daily water sprays will be used during dry conditions. In addition to water sprays, temporary mulching, temporary seeding and covering stockpiles with tarps shall be implemented when necessary. 8.0 CONTROL OF LITTER, CONSTRUCTION DEBRIS & CONSTRUCTION CHEMICALS During the course of construction, the site shall be kept clear of debris and litter which could be transported by water or wind. This material shall be picked up daily and shall be stored in waste debris containers where it will be securely held. All petroleum products or other waste contaminants which are water soluble, or could be dispersed and transported by stormwater, shall be stored in covered containers and shall be regularly removed from the site and properly and legally disposed of. All petroleum or other hazardous materials shall be stored and handled in conformance with NYSDEC spill prevention and containment requirements. 9.0 SEQUENCE OF CONSTRUCTION Prior to the start of construction, the contractor shall install the sediment control fence along the low side of each area to be disturbed in order to contain runoff from the construction site. • Concurrently, the stabilized construction entrance is to be installed. r Following the completion of all planting and the establishment of all grass areas, any collected sediment and sediment control fencing shall be removed. Any debris from the perimeter of the site shall be removed and dispose of all waste material shall be disposed of in a legal manner. 10.0 MAINTENANCE OF TEMPORARY EROSION & SEDIMENT CONTROL DEVICES The contractor shall inspect the sediment control fence weekly and after every rain event and remove trapped sediment and maintain the devices such that they are in good working order. 11.0 OPERATION & MAINTENANCE PLAN Maintenance consists of inspection and repair of any eroded areas during the stabilization period. Any eroded areas shall be immediately repaired, retopsoiled, revegetated and covered with erosion control blankets. 12.0 PERMANENT EROSION CONTROL All pervious areas shall be graded, topsoil installed and seeded or planted as soon as practical, but in no case shall finish graded soils be exposed for more than fourteen days. Seeded areas on slopes over 1:3 shall be stabilized with erosion control blankets as specified on the plans. 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