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Weippe, City of

Sewage treatment plant, Weippe, Idaho. NPDES permit ID0020354 expired Oct 31, 2019; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (31 values), outfall REC form A quarterly (10 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
4 values over a limit, 1 required value missing, 5 of 16 reports late

Limits in force (44)

ParameterStatisticLimitMonthsOutfall
Stream flow, instantaneousmonthly minimumreport only (MGD)all year001
Stream flow, instantaneousmonthly averagereport only (MGD)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 134 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 201 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 134 lb/dall year001
Solids, total suspendedweekly average≤ 201 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec001
Phosphorus, total [as P]monthly totalreport only (lb/mo)Jan, Feb, Mar, Aug, Sep, Oct, Nov, Dec001
Phosphorus, total [as P]monthly averagereport only (mg/L)Apr–Jul001
Phosphorus, total [as P]monthly average≤ 30 lb/moApr–Jul001
Phosphorus, total [as P]monthly totalreport only (lb/mo)Apr–Jul001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year001
E. coli, MTEC-MFinstantaneous maximum≤ 406 #/100mLall year001
Floating solids, waste or visible foam-visualmonthly maximum≤ 0 N=0;Y=1all year001
Flow, in conduit or thru treatment plantmonthly totalreport only (Mgal/mo)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .32 mg/Lall year001
Chlorine, total residualweekly average≤ .97 mg/Lall year001
Chlorine, total residualmonthly average≤ 1.43 lb/dall year001
Chlorine, total residualdaily maximum≤ 4.33 lb/dall year001
Effluent dilution ratiomonthly minimum≥ 50 Ratioall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Oil and grease visualmonthly maximum≤ 0 N=0;Y=1all year001
Temperature, water deg. centigradequarterly maximumreport only (deg C)all yearREC
Temperature, water deg. centigradequarterly maximumreport only (deg C)all yearREC
Stream flow, instantaneousquarterly minimumreport only (MGD)all yearREC
Stream flow, instantaneousquarterly minimumreport only (MGD)all yearREC
pHinstantaneous minimumreport only (SU)all yearREC
pHinstantaneous minimumreport only (SU)all yearREC
pHinstantaneous maximumreport only (SU)all yearREC
pHinstantaneous maximumreport only (SU)all yearREC
Nitrogen, ammonia total [as N]quarterly maximumreport only (mg/L)all yearREC
Nitrogen, ammonia total [as N]quarterly maximumreport only (mg/L)all yearREC

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ID0020354 · MCP: https://passage-data.com/mcp