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engineeringlc <br /> c <br /> CONSTRUCTION STORMWATER POLLUTION PREVENTION <br /> PLAN (SWPPP) <br /> The SWPPP narrative for this project can be found in Appendix C and is based on the requirements <br /> of Volume III of the 2014 SWMMWW. An NPDES permit from the Washington State Department <br /> of Ecology will not be required for the project, since the project will disturb less than one acre of <br /> land. This design will include the following TESC measures: <br /> • Temporary Stabilized Construction Entrance, per BMP C105 <br /> • Catch Basin Filters,per BMP C220 <br /> • Silt Fence,per BMP C233 <br /> The TESC elements shown are intended to be the minimum allowable. During construction,the <br /> contractor is responsible for upgrading these facilities as necessary. The implementation of the <br /> TESC plan and construction maintenance, replacement and upgrading of the TESC facilities are the <br /> responsibility of the contractor per the contract documents. The TESC facilities will be constructed <br /> prior to and in conjunction with all clearing and grading activity and in a manner in which sediment <br /> or sediment laden water does not leave the project site, enter the drainage system, or violate <br /> applicable water quality standards. <br /> • <br /> LPD Engineering, PLLC Page 8 Horizon Elementary School — Classroom Portable Installation <br /> Storm Drainage Report,June 5, 2019 <br />