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Stormwater Pollution Prevention Plan <br />6.1.2 Site Inspection Documentation <br />The site inspector will record each site inspection using the site log inspection forms provided in <br />Appendix E. The site inspection log forms may be separated from this SWPPP document, but <br />will be maintained on-site or within reasonable access to the site and be made available upon <br />request to Ecology or the local jurisdiction. <br />6.2 Stormwater Quality Monitoring <br />The applicant will monitor for the parameter(s) of concern described in the sections below and <br />document monitoring results in the site log book during construction. The applicant will manage <br />stormwater and construction dewatering discharges such that the discharge is consistent with <br />applicable water quality requirements. <br />Where there is no off site discharge from the construction site during a calendar week, sampling <br />is not required. Sampling is not required outside of normal working hours or during unsafe <br />conditions. <br />6.2.1 Turbidity Sampling <br />Monitoring requirements for the proposed project will include either turbidity or water <br />transparency sampling to monitor site discharges for water quality compliance with the 2005 <br />Construction Stormwater General Permit (Appendix D). Sampling will be conducted at all <br />discharge points at least once per calendar week. <br />Turbidity or transparency monitoring will follow the analytical methodologies described in <br />Section S4 of the 2005 Construction Stormwater General Permit (Appendix D). The key <br />benchmark values that require action are 25 NTU for turbidity (equivalent to 32 cm <br />transparency) and 250 NTU for turbidity (equivalent to 6 cm transparency). If the 25 NTU <br />benchmark for turbidity (equivalent to 32 cm transparency) is exceeded, the following steps will <br />be conducted: <br />Ensure all BMPs specified in this SWPPP are installed and functioning as <br />intended. <br />2. Assess whether additional BMPs should be implemented, and document <br />revisions to the SWPPP as necessary. <br />3. Sample discharge location daily until the analysis results are less than 25 <br />NTU (turbidity) or grcater than 32 cm (transparency). <br />If the turbidity is greater than 25 NTU (or transparency is less than 32 cm) but less than 250 <br />NTU (transparency greater than 6 cm) for more t11an 3 days, additional treatment BMPs will be <br />24 <br />