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Lummi Indian Business Council

Sewage treatment plant, Ferndale, Washington. NPDES permit WA0025658 expired Nov 30, 2016; its limits still apply. Last 12 months: over a limit 2 times (last August 2026), 10 of 16 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 10 days after each period: form A monthly (22 values), form Q quarterly
Last report on file
September 2026
Oct 2024 – Sep 2025
8 values over a limit, 1 required value missing, 11 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
August 2026Solids, suspended percent removal, monthly average minimum74 %≥ 85 %73%
August 2026Solids, total suspended, weekly average66 mg/L≤ 45 mg/L47%

Limits in force (25)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 63 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 94 lb/dall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedmonthly average≤ 63 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedweekly average≤ 94 lb/dall year
Nitrogen, ammonia total [as N]quarterly maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]quarterly maximumreport only (mg/L)all year
Nitrite + Nitrate total [as N]quarterly maximumreport only (mg/L)all year
Fecal coliform, MPN, EC med, 44.5 Cmonthly geometric mean≤ 200 #/100mLall year
Fecal coliform, MPN, EC med, 44.5 Cweekly geometric mean≤ 400 #/100mLall year
Floating solids, waste or visible foam-visualmonthly maximum≤ 0 N=0;Y=1all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .23 mg/Lall year
Chlorine, total residualdaily maximum≤ .65 mg/Lall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Oil and grease visualmonthly maximum≤ 0 N=0;Y=1all year

How strict are these limits?

Cited limits by parameter: Washington's rules and the federal ones.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/WA0025658 · MCP: https://passage-data.com/mcp