Laserfiche WebLink
<br /> City of Everett, Public Works Department, Water Pollution Control Facility <br /> <br />BIOSOLIDS SAMPLING & ANALYSIS PLAN 6 <br /> <br />Samples will be tested for the pollutants listed in section WAC 173-308-160, pathogen reduction per <br />WAC 173-308-170, and vector attraction reduction per WAC 173-308-180. See Appendix E for the <br />Environmental Protection Agency’s Priority Pollutant List, and Section 2 for a list of the specific analytes <br />for biosolids testing. Solids within the oxidation pond have been surveyed, sampled, and characterized. <br />See process schematic in Appendix A, and sampling locations and analytes in Appendix B. <br />2. Biosolids Sampling Analysis & Laboratory <br />COE biosolids in the lagoons are sampled for the following: <br />• 9 priority metals (As, Cd, Cu, Pb, Hg, Mo, Ni, Se, Zn) <br />• Fecal Coliform <br />• Total Solids <br />• VAR <br />COE biosolids that have been dredged are sampled for the following: <br />• Total Solids <br />• Nitrite/Nitrate <br />• Total Kieldahl Nitrogen (TKN) <br />• Ammonia <br />• pH <br />Everett Environmental Laboratory (EEL) is the onsite lab accredited by the Department of Ecology for the <br />following: <br />• Total Metals – per EPA method 6020B <br />o Arsenic <br />o Cadmium <br />o Copper <br />o Lead <br />o Molybdenum <br />o Nickel <br />o Selenium <br />o Zinc <br />• Mercury – EPA method 7471B <br />• Fecal Coliform – SM9221 B+E1+C <br />• Solids, Total, Fixed and Volatile – SM2540G <br />• pH – EPA method 9045D <br />• VAR <br />