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Craigmont, City of

Sewage treatment plant, Craigmont, Idaho. NPDES permit ID0021288 expired May 31, 2025; its limits still apply. Last 12 months: over a limit 25 times (last May 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (28 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
9 values over a limit, 14 required values missing, 9 of 12 reports late

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

All 25 values over a limit
Period endingParameterReportedLimitOver by
October 2025Solids, total suspended, monthly average70 mg/L≤ 30 mg/L133%
October 2025Solids, total suspended, weekly average70 mg/L≤ 45 mg/L56%
November 2025Solids, total suspended, monthly average42.1 mg/L≤ 30 mg/L40%
December 2025Chlorine, total residual, daily maximum.07 mg/L≤ .05 mg/L40%
December 2025Chlorine, total residual, monthly average.057 mg/L≤ .05 mg/L14%
December 2025E. coli, MTEC-MF, instantaneous maximum770.1 CFU/100mL≤ 406 CFU/100mL90%
December 2025Solids, total suspended, monthly average41 mg/L≤ 30 mg/L37%
January 2026BOD, 5-day, 20 deg. C, monthly average31.5 mg/L≤ 30 mg/L5%
January 2026E. coli, MTEC-MF, instantaneous maximum1413.6 CFU/100mL≤ 406 CFU/100mL248%
January 2026Solids, total suspended, monthly average32.5 mg/L≤ 30 mg/L8%
February 2026Solids, total suspended, monthly average35 mg/L≤ 30 mg/L17%
March 2026BOD, 5-day, percent removal, monthly average minimum42 %≥ 85 %287%
March 2026Solids, suspended percent removal, monthly average minimum-23 %≥ 85 %720%
March 2026Solids, total suspended, monthly average36.06 lb/d≤ 30 lb/d20%
March 2026Solids, total suspended, monthly average47 mg/L≤ 30 mg/L57%
March 2026Solids, total suspended, weekly average47 mg/L≤ 45 mg/L4%
April 2026BOD, 5-day, 20 deg. C, monthly average30.26 lb/d≤ 30 lb/d1%
April 2026BOD, 5-day, 20 deg. C, monthly average42.9 mg/L≤ 30 mg/L43%
April 2026BOD, 5-day, percent removal, monthly average minimum64.5 %≥ 85 %137%
April 2026Solids, suspended percent removal, monthly average minimum64.7 %≥ 85 %135%
April 2026Solids, total suspended, monthly average34.7 lb/d≤ 30 lb/d16%
April 2026Solids, total suspended, monthly average49.3 mg/L≤ 30 mg/L64%
April 2026Solids, total suspended, weekly average49.3 mg/L≤ 45 mg/L10%
April 2026pH, instantaneous maximum9.5 SU≤ 9 SU—
May 2026pH, instantaneous maximum9.73 SU≤ 9 SU—

Limits in force (28)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHinstantaneous minimum≥ 6.5 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 30 lb/dall year
Solids, total suspendedweekly average≤ 45 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)all year
E. coli, MTEC-MFgeometric mean≤ 126 CFU/100mLall year
E. coli, MTEC-MFinstantaneous maximum≤ 406 CFU/100mLall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualmonthly average≤ .05 mg/Lall year
Chlorine, total residualdaily maximum≤ .05 mg/Lall year
Chlorine, total residualmonthly average≤ .05 lb/dall year
Chlorine, total residualdaily maximum≤ .05 lb/dall year
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

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/ID0021288 · MCP: https://passage-data.com/mcp