Title Page
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Client / Site
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Conducted on
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Prepared by
Part IV. Benchmark Monitoring Requirements Common to Many Industrial Activities Section
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Use of Benchmark Data
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The permittee must compare the results of analyses to the Sector specific benchmark values, and must include this comparison in the overall assessment of the SWP3 effectiveness. Analytical results that exceed a benchmark value are not a violation of this permit, as these values are not numeric effluent limitations, however, if a permittee is required to sample for any of the hazardous metals listed in Part III.C.1 of this general permit as part of the benchmark requirements in Part V of this permit, then the permittee is subject to the effluent limitations in Part III.D.1. for these samples that are collected at a final outfall. Results of analysis are indicators that modifications of the SWP3 may be necessary. The Pollution Prevention Team must investigate the cause for each exceedance and must document the results of this investigation in the SWP3 within 90 days following the sampling event.
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The Pollution Prevention Team investigation must identify the following.
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1) any additional potential sources of pollution, such as spills that might have occurred,
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2) necessary revisions to the Good Housekeeping Measures section of the SWP3,
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3) additional BMPs, including a schedule to install or implement the BMPs,
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4) other parts of the SWP3 for which revisions are appropriate.
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Additional Pollution Prevention Team Findings:
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