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<br /> City of Everett, Public Works Department, Water Pollution Control Facility <br /> <br /> <br /> <br />Table of Contents <br />Introduction .................................................................................................................................................. 3 <br />History ....................................................................................................................................................... 3 <br />Solids Treatment Process .......................................................................................................................... 3 <br />Figure 1 - Aerated Lagoons Flow Diagram ............................................................................................ 4 <br />Biosolids Management ............................................................................................................................. 5 <br />Biosolids Sampling ........................................................................................................................................ 5 <br />Table 1 – Biosolids Testing Analytes and Methods ............................................................................... 5 <br />Table 2 – Approximate Schedule of Biosolids Management ................................................................ 6 <br />Biosolids Sampling for Required Biosolids Characterization .................................................................... 7 <br />Biosolids Sampling for Internal Monitoring .............................................................................................. 7 <br />Land Application Site Management - Marshland ......................................................................................... 8 <br />Data Analysis Review ................................................................................................................................... 9 <br />Everett Biosolids Management Staff ........................................................................................................... 9 <br />Appendix A – Process Schematic ........................................................................................................ 10 <br />Appendix B – Aeration Cells Sample Site Map .................................................................................... 11 <br />Appendix C – Oxidation Pond Site Map .............................................................................................. 12 <br />Appendix D – Analysis Methods, Preservation and Holding Times .................................................... 13 <br /> <br /> <br /> <br /> <br />