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• S4. MONITORING REQUIREMENTS, BENCHMARKS AND REPORTING <br />TRIGGERS <br />A. Site Log Book <br />The Permittee must maintain a site log book that contains a record of the implementation <br />of the SWPPP and other permit requirements, including the installation and maintenance <br />of BMPs, site inspections, and stormwater monitoring. <br />B. Site Inspections <br />The Permittee's site inspections must include all areas disturbed by construction <br />activities, all BMPs, and all stormwater discharge points under the Permittee's <br />operational control. (See Special Conditions S4.B.3 and BA below for detailed <br />requirements of the Permittee's Certified Erosion and Sediment Control Lead [CESCL].) <br />Construction sites one acre or larger that discharge stormwater to surface waters of the <br />State must have site inspections conducted by a certified CESCL. Sites less than one <br />acre may have a person without CESCL certification conduct inspections. <br />1. The Permittee must examine stormwater visually for the presence of suspended <br />sediment, turbidity, discoloration, and oil sheen. The Permittee must evaluate the <br />effectiveness of BMPs and determine if it is necessary to install, maintain, or repair <br />BMPs to improve the quality of stormwater discharges. <br />Based on the results of the inspection, the Permittee must correct the problems <br />0 identified by: <br />• <br />a. Reviewing the SWPPP for compliance with Special Condition S9 and making <br />appropriate revisions within 7 days of the inspection. <br />b. Immediately beginning the process of fully implementing and maintaining <br />appropriate source control and/or treatment BMPs as soon as possible, <br />addressing the problems no later than within 10 days of the inspection. If <br />installation of necessary treatment BMPs is not feasible within 10 days, Ecology <br />may approve additional time when an extension is requested by a Permittee <br />within the initial 10-day response period. <br />c. Documenting BMP implementation and maintenance in the site log book. <br />2. The Permittee must inspect all areas disturbed by construction activities, all BMPs, <br />and all stormwater discharge points at least once every calendar week and within <br />24 hours of any discharge from the site. (For purposes of this condition, individual <br />discharge events that last more than one day do not require daily inspections. For <br />example, if a stormwater pond discharges continuously over the course of a week, <br />only one inspection is required that week.) The Permittee may reduce the <br />inspection frequency for temporarily stabilized, inactive sites to once every <br />calendar month. <br />(..,.1T1,§i`rucf fior, ,,' iio "mw(T1ef GlE?7'!G?Y"(.t"r .t'E'-➢mit <br />Page 13 <br />