WA ST Dept of Ecology 2/15/2022 - Laserfiche WebLink

Wastewater Treatment Plant Individual Action Level, TIN Outfall Number NPDES Permit lbs/year Number LOTT Budd Inlet WWTF WA0037061 338,000 001 Lynnwood STP WA0024031 340,000 001 Marysville STP WA0022497 592,000 100/001 Midway Sewer District WWTP WA0020958 625,500 001 Miller Creek WWTP 2 WA0022764 297,000 001 Mt Vernon WWTP WA0024074 396,000 004 Port Angeles WWTP WA0023973 177,000 001/002 Port Orchard WWTP (South WA0020346 215,000 001 Kitsap WRF) Redondo WWTP 1 WA0023451 249,000 001 Salmon Creek WWTP 2 WA0022772 199,000 001 Snohomish STP WA0029548 83,600 001 Tacoma North No. 3 WWTP WA0037214 339,000 001 Table 9. Bubbled Action Levels for Corrective Action Assessment Jurisdiction Bubbled Action Level, TIN lbs/year Lakehaven Water and Sewer District 1 846,000 Southwest Suburban Sewer District 2 496,000 C. NITROGEN OPTIMIZATION PLAN AND REPORT Each Permittee listed in Table 8 must develop, implement and maintain a Nitrogen Optimization Plan to evaluate operational strategies for maximizing nitrogen removal from the existing treatment plant to stay below the calculated action level. Each Permittee must document their actions taken, any action level exceedances, and apply an adaptive management approach at the WWTP. Permittees will quantify results with required monitoring under this Permit. The Permittee must begin the actions described in this section immediately upon permit coverage. Documentation of Nitrogen Optimization Plan implementation must be submitted annually through the Annual Report (S9- Reporting Requirements). See Appendix D for annual report questions that satisfy the Nitrogen Optimization Plan requirements. The Nitrogen Optimization Plan submitted by each Permittee in Table 8 must include the following components: Puget Sound Nutrient General Permit Page 20