Passage Data · Check a report · Use it from your AI

South Fork Coeur D Alene River Sewer District

Sewage treatment plant, major discharger, Smelterville, Idaho. NPDES permit ID0021300 expired Sep 30, 2018; its limits still apply. Last 12 months: over a limit once (last April 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (43 values), outfall 001 form B monthly (12 values), outfall 001 form C monthly (12 values), outfall REC form A monthly (1 value), outfall REC form S monthly (30 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 4 of 48 reports late

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

Period endingParameterReportedLimitOver by
April 2026Zinc, total recoverable, monthly average849 ug/L≤ 800 ug/L6%

Limits in force (114)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademonthly averagereport only (deg C)all year001
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year001
Oxygen, dissolved [DO]monthly averagereport only (mg/L)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≤ 1100 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 1600 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
Alkalinity, total [as CaCO3]monthly averagereport only (mg/L)all year001
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 630 lb/dall year001
Solids, total suspendedweekly average≤ 1160 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan–Jun001
Nitrogen, ammonia total [as N]monthly average≤ 13.3 mg/LJul–Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan–Jun001
Nitrogen, ammonia total [as N]daily maximum≤ 34.8 mg/LJul–Dec001
Nitrogen, ammonia total [as N]monthly averagereport only (lb/d)Jan–Jun001
Nitrogen, ammonia total [as N]monthly average≤ 476 lb/dJul–Dec001
Nitrogen, ammonia total [as N]daily maximumreport only (lb/d)Jan–Jun001
Nitrogen, ammonia total [as N]daily maximum≤ 1250 lb/dJul–Dec001
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 (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year001
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year001
Zinc, total recoverablemonthly average≤ 800 ug/Lall year001
Zinc, total recoverablemonthly average≤ 800 ug/Lall year001
Zinc, total recoverablemonthly average≤ 107 ug/Lall year001
Zinc, total recoverabledaily maximum≤ 1340 ug/Lall year001
Zinc, total recoverabledaily maximum≤ 1340 ug/Lall year001
Zinc, total recoverabledaily maximum≤ 168 ug/Lall year001
Zinc, total recoverablemonthly average≤ 29 lb/dall year001
Zinc, total recoverablemonthly average≤ 29 lb/dall year001
Zinc, total recoverablemonthly average≤ 6.8 lb/dall year001
Zinc, total recoverabledaily maximum≤ 48 lb/dall year001
Zinc, total recoverabledaily maximum≤ 48 lb/dall year001
Zinc, total recoverabledaily maximum≤ 6 lb/dall year001
Cadmium, total recoverablemonthly average≤ 4.6 ug/Lall year001
Cadmium, total recoverablemonthly average≤ 4.6 ug/Lall year001
Cadmium, total recoverablemonthly average≤ 4.6 ug/Lall year001
Cadmium, total recoverabledaily maximum≤ 7.2 ug/Lall year001
Cadmium, total recoverabledaily maximum≤ 7.2 ug/Lall year001
Cadmium, total recoverabledaily maximum≤ 7.2 ug/Lall year001
Cadmium, total recoverablemonthly average≤ .16 lb/dall year001
Cadmium, total recoverablemonthly average≤ .16 lb/dall year001
Cadmium, total recoverablemonthly average≤ .16 lb/dall year001
Cadmium, total recoverabledaily maximum≤ .26 lb/dall year001
Cadmium, total recoverabledaily maximum≤ .26 lb/dall year001
Cadmium, total recoverabledaily maximum≤ .26 lb/dall year001
Lead, total recoverablemonthly average≤ 54 ug/Lall year001
Lead, total recoverablemonthly average≤ 54 ug/Lall year001
Lead, total recoverablemonthly average≤ 18 ug/Lall year001
Lead, total recoverabledaily maximum≤ 82 ug/Lall year001
Lead, total recoverabledaily maximum≤ 82 ug/Lall year001
Lead, total recoverabledaily maximum≤ 39 ug/Lall year001
Lead, total recoverablemonthly average≤ 1.9 lb/dall year001
Lead, total recoverablemonthly average≤ 1.9 lb/dall year001
Lead, total recoverablemonthly average≤ .65 lb/dall year001
Lead, total recoverabledaily maximum≤ 2.9 lb/dall year001
Lead, total recoverabledaily maximum≤ 2.9 lb/dall year001
Lead, total recoverabledaily maximum≤ 1.4 lb/dall year001
Oil and greasemonthly averagereport only (mg/L)all year001
Oil and greasedaily maximumreport only (mg/L)all year001
Phosphate, ortho [as P]monthly averagereport only (mg/L)all year001
Phosphate, ortho [as P]daily maximumreport only (mg/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year001
E. coli, MTEC-MFinstantaneous maximum≤ 576 #/100mLall 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≤ 50 ug/Lall year001
Chlorine, total residualdaily maximum≤ 73 ug/Lall year001
Chlorine, total residualdaily maximum≤ 2.6 lb/dall year001
BOD, 5-day, percent removalmonthly average minimum≥ 65 %all year001
Solids, suspended percent removalmonthly average minimum≥ 65 %all year001
Temperature, water deg. centigradesemi-annual maximumreport only (deg C)all yearREC
Stream flow, instantaneousdaily averagereport only (cfs)all yearREC
Turbiditysemi-annual maximumreport only (NTU)all yearREC
Oxygen, dissolved [DO]semi-annual maximumreport only (mg/L)all yearREC
pHinstantaneous minimumreport only (SU)all yearREC
pHinstantaneous maximumreport only (SU)all yearREC
Alkalinity, total [as CaCO3]semi-annual maximumreport only (mg/L)all yearREC
Nitrogen, ammonia total [as N]semi-annual maximumreport only (mg/L)all yearREC
Phosphorus, total [as P]semi-annual maximumreport only (mg/L)all yearREC
Cyanide, weak acid, dissociablesemi-annual maximumreport only (ug/L)all yearREC
Hardness, total [as CaCO3]semi-annual maximumreport only (mg/L)all yearREC
Selenium, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Arsenic, total [as As]semi-annual maximumreport only (ug/L)all yearREC
Cadmium, dissolved [as Cd]semi-annual maximumreport only (ug/L)all yearREC
Chromium, dissolved [as Cr]semi-annual maximumreport only (ug/L)all yearREC
Copper, dissolved [as Cu]semi-annual maximumreport only (ug/L)all yearREC
Lead, dissolved [as Pb]semi-annual maximumreport only (ug/L)all yearREC
Nickel, dissolved [as Ni]semi-annual maximumreport only (ug/L)all yearREC
Nickel, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Silver, dissolved [as Ag]semi-annual maximumreport only (ug/L)all yearREC
Silver total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Zinc, dissolved [as Zn]semi-annual maximumreport only (ug/L)all yearREC
Zinc, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Cadmium, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Lead, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Chromium, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Copper, total recoverablesemi-annual maximumreport only (ug/L)all yearREC
Selenium, dissolved [as Se]semi-annual maximumreport only (ug/L)all yearREC
E. coli, MTEC-MFsemi-annual maximumreport only (#/100mL)all yearREC
Mercury, dissolved [as Hg]semi-annual maximumreport only (ug/L)all yearREC
Mercury, total recoverablesemi-annual maximumreport only (ug/L)all yearREC

New limits from Jan 1, 2035

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Zinc, total recoverable, monthly average3.8 lb/dtighter5.075 lb/d (12 values)1.34×
Cadmium, total recoverable, daily maximum0.06 lb/dtighter0.0059 lb/d (12 values, 2 below detection)0.0983×
Cadmium, total recoverable, daily maximum1.7 ug/Ltighter0.38 ug/L (12 values, 2 below detection)0.224×
Cadmium, total recoverable, monthly average0.73 ug/Ltighter0.38 ug/L (12 values, 2 below detection)0.521×
Cadmium, total recoverable, monthly average0.026 lb/dtighter0.0059 lb/d (12 values, 2 below detection)0.227×

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

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ID0021300 · MCP: https://passage-data.com/mcp