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Sandpoint, City of

Sewage treatment plant, major discharger, Sandpoint, Idaho. NPDES permit ID0020842 expired Nov 30, 2022; its limits still apply. Last 12 months: over a limit 4 times (last January 2026), 1 of 25 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form A monthly (40 values), outfall 001 form C monthly (4 values), outfall 001 form Q quarterly (4 values), outfall REC form A1 quarterly (1 value), outfall 001 form G twice a year, outfall 001 form T yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 29 reports late

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

Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, percent removal, monthly average minimum81 %≥ 85 %27%
January 2026BOD, 5-day, percent removal, monthly average minimum80 %≥ 85 %33%
January 2026Chlorine, total residual, daily maximum1.34 mg/L≤ .912 mg/L47%
January 2026E. coli, MTEC-MF, instantaneous maximum2420 #/100mL≤ 406 #/100mL496%

Limits in force (107)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademaximum daily averagereport only (deg C)all year001
Temperature, water deg. centigrademaximum 7-day averagereport only (deg C)all year001
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all year001
Conductivitymonthly averagereport only (umho/cm)all year001
Conductivitydaily maximumreport only (umho/cm)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≤ 1251 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 1877 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≤ 1251 lb/dall year001
Solids, total suspendedweekly average≤ 1877 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (ug/L)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]monthly averagereport only (ug/L)Jun–Sep001
Phosphorus, total [as P]maximum weekly averagereport only (ug/L)Jan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]maximum weekly averagereport only (ug/L)Jun–Sep001
Phosphorus, total [as P]monthly average≤ 96 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]monthly average≤ 96 lb/dJun–Sep001
Phosphorus, total [as P]weekly average≤ 125 lb/dJan, Feb, Mar, Apr, May, Oct, Nov, Dec001
Phosphorus, total [as P]weekly average≤ 125 lb/dJun–Sep001
Phosphate, ortho, dissolved [as P]monthly averagereport only (mg/L)all year001
Phosphate, ortho, dissolved [as P]daily maximumreport only (mg/L)all year001
Carbon, dissolved organic [as C]monthly averagereport only (mg/L)all year001
Carbon, dissolved organic [as C]daily maximumreport only (mg/L)all year001
Cyanide, weak acid, dissociablemonthly averagereport only (ug/L)May, Nov001
Cyanide, weak acid, dissociableinstantaneous maximumreport only (ug/L)May, Nov001
Cyanide, weak acid, dissociablemonthly averagereport only (ug/L)May, Nov001
Cyanide, weak acid, dissociableinstantaneous maximumreport only (ug/L)May, Nov001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Arsenic, total recoverablemonthly averagereport only (ug/L)May, Nov001
Arsenic, total recoverabledaily maximumreport only (ug/L)May, Nov001
Arsenic, total recoverablemonthly averagereport only (ug/L)May, Nov001
Arsenic, total recoverabledaily maximumreport only (ug/L)May, Nov001
Nickel, total recoverablemonthly averagereport only (ug/L)May, Nov001
Nickel, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Nickel, total recoverablemonthly averagereport only (ug/L)May, Nov001
Nickel, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Silver total recoverablemonthly averagereport only (ug/L)May, Nov001
Silver total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Silver total recoverablemonthly averagereport only (ug/L)May, Nov001
Silver total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Zinc, total recoverablemonthly averagereport only (ug/L)May, Nov001
Zinc, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Zinc, total recoverablemonthly averagereport only (ug/L)May, Nov001
Zinc, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Cadmium, total recoverablemonthly averagereport only (ug/L)May, Nov001
Cadmium, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Cadmium, total recoverablemonthly averagereport only (ug/L)May, Nov001
Cadmium, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Lead, total recoverablemonthly averagereport only (ug/L)May, Nov001
Lead, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Lead, total recoverablemonthly averagereport only (ug/L)May, Nov001
Lead, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Chromium, total recoverablemonthly averagereport only (ug/L)May, Nov001
Chromium, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Chromium, total recoverablemonthly averagereport only (ug/L)May, Nov001
Chromium, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Copper, total recoverablemonthly averagereport only (ug/L)May, Nov001
Copper, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Copper, total recoverablemonthly averagereport only (ug/L)May, Nov001
Copper, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)May, Nov001
Chromium, hexavalent dissolved [as Cr]instantaneous maximumreport only (ug/L)May, Nov001
Chromium, hexavalent dissolved [as Cr]monthly averagereport only (ug/L)May, Nov001
Chromium, hexavalent dissolved [as Cr]instantaneous maximumreport only (ug/L)May, Nov001
2,3,7,8-Tetrachlorodibenzo-p-dioxinmonthly averagereport only (pg/L)all year001
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (pg/L)all year001
2,3,7,8-Tetrachlorodibenzo-p-dioxinmonthly averagereport only (pg/L)all year001
2,3,7,8-Tetrachlorodibenzo-p-dioxindaily maximumreport only (pg/L)all year001
E. coli, MTEC-MFgeometric 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 averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .348 mg/Lall year001
Chlorine, total residualdaily maximum≤ .912 mg/Lall year001
Chlorine, total residualmonthly average≤ 14.5 lb/dall year001
Chlorine, total residualdaily maximum≤ 38 lb/dall year001
Toxicity [chronic], Ceriodaphnia dubiaquarterly maximumreport only (tox chronic)all year001
Toxicity [chronic], Ceriodaphnia dubiaEPA's "SEAN MAX"report only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]quarterly maximumreport only (tox chronic)all year001
Toxicity [chronic], Pimephales promelas [Fathead Minnow]EPA's "SEAN MAX"report only (tox chronic)all year001
Mercury, total recoverablemonthly average≤ .56 ug/Lall year001
Mercury, total recoverabledaily maximum≤ 1.1 ug/Lall year001
Mercury, total recoverablemonthly average≤ .014 lb/dall year001
Mercury, total recoverabledaily maximum≤ .028 lb/dall year001
Mercury, total recoverablemonthly averagereport only (ug/L)May, Nov001
Mercury, total recoverableinstantaneous maximumreport only (ug/L)May, Nov001
Polychlorinated biphenyls [PCB] pg/Lmonthly averagereport only (pg/L)all year001
Polychlorinated biphenyls [PCB] pg/Ldaily maximumreport only (pg/L)all year001
Polychlorinated biphenyls [PCB] pg/Lmonthly averagereport only (pg/L)all year001
Polychlorinated biphenyls [PCB] pg/Ldaily maximumreport only (pg/L)all year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Polychlorinated biphenyls [PCB] pg/Linstantaneous maximumreport only (pg/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/ID0020842 · MCP: https://passage-data.com/mcp