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C. Recording of Results: For each measurement or sample taken, the Permittee shall <br />record the following information: (1) the date, exact place and time of sampling; (2) <br />the individual who performed the sampling or measurement; (3) the dates the <br />analyses were performed; (4) who performed the analyses; (5) the analytical <br />techniques or methods used; and (6) the results of all analyses. <br />D. Test Procedures: All sampling and analytical methods used to meet the monitoring <br />requirements specified in this permit shall conform to the Guidelines Establishing <br />Test Procedures for the Analysis of Pollutants contained in 40 CFR Part 136, unless <br />otherwise specified in this permit or approved in writing by Ecology. <br />E. Flow Measurement: Appropriate flow measurement devices and methods consistent <br />with accepted scientific practices shall be selected and used to ensure the accuracy <br />and reliability of measurements of the volume of monitored discharges. The devices <br />shall be installed, calibrated, and maintained to ensure that the accuracy of the <br />measurements is consistent with the accepted industry standard for that type of <br />device. Frequency of calibration shall be in conformance with manufacturer's <br />recommendations or at a minimum frequency of at least one calibration per year. <br />Calibration records should be maintained for a minimum of three years. <br />F. Lab Accreditation: All monitoring data, except for flow, temperature, conductivity, <br />pH, total residual chlorine, and other exceptions approved by Ecology, shall be <br />prepared by a laboratory registered or accredited under the provisions of, <br />Accreditation of Environmental Laboratories, Chapter 173-50 WAC. Soils and <br />hazardous waste data are exempted from this requirement pending accreditation of <br />Iaboratories for analysis of these media by Ecology. Quick methods of field detection <br />of pollutants including nutrients, surfactants, salinity, and other. parameters are <br />exempted from this requirement when the purpose of the sampling is identification <br />and removal of a suspected illicit discharge. <br />G. Additional Monitoring: Ecology may establish specific monitoring requirements in <br />addition to those contained in this permit by permit modification. <br />G10. REMOVED SUBSTANCES <br />With the exception of decant from street waste vehicles, the Permittee shall not allow <br />collected screenings, grit, solids, sludges, filter backwash, or other pollutants removed in <br />the course of treatment or control of stormwater to be re -suspended or reintroduced to the <br />storm sewer system or to waters of the state. Decant from street waste vehicles resulting <br />from cleaning stormwater facilities may be reintroduced only when other practical means <br />are not available and only in accordance with the Street Waste Disposal Guidelines in <br />Appendix 6. Solids generated from maintenance of the MS4 may be reclaimed, recycled, <br />or reused when allowed by local codes and ordinances. Soils that are identified as <br />contaminated pursuant to Chapter 173-350 WAC shall be disposed at a qualified solid <br />waste disposal facility (see Appendix 6). <br />Eastern Washington Phase II Municipal Stormwater Permit — August I, 2014 <br />Page 44 <br />