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Hailey, City of

Sewage treatment plant, major discharger, Hailey, Idaho. NPDES permit ID0020303 expired Jul 31, 2017; its limits still apply. Last 12 months: over a limit 2 times (last June 2026), 3 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: form A monthly (55 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 2 of 12 reports late

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

Period endingParameterReportedLimitOver by
May 2026E. coli, instantaneous maximum870 #/100mL≤ 406 #/100mL114%
June 2026E. coli, instantaneous maximum450 #/100mL≤ 406 #/100mL11%

Limits in force (58)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)Apr–Oct
Temperature, water deg. centigrademonthly averagereport only (deg C)Jan, Feb, Mar, Nov, Dec
Temperature, water deg. centigradedaily maximumreport only (deg C)Apr–Oct
Temperature, water deg. centigradedaily maximumreport only (deg C)Jan, Feb, Mar, Nov, Dec
Oxygen, dissolved [DO]monthly averagereport only (mg/L)all year
Oxygen, dissolved [DO]daily maximumreport only (mg/L)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≤ 94 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 141 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
Alkalinity, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 45 lb/dall year
Solids, total suspendedannual average≤ 18.1 lb/dDec
Solids, total suspendedweekly average≤ 141 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.9 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 2.9 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 3.3 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 9 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 15.6 lb/dall year
Nitrogen, ammonia total [as N]weekly average≤ 14 lb/dall year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly average≤ 55 lb/dall year
Nitrogen, Kjeldahl, total [as N]weekly average≤ 78 lb/dall year
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly average≤ 5.2 lb/dall year
Phosphorus, total [as P]weekly average≤ 9.2 lb/dall year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Hardness, total [as CaCO3]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Zinc, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec
Zinc, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec
Copper, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec
Copper, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec
Oil and greasemonthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Oil and greasedaily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Phosphate, ortho [as P]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Phosphate, ortho [as P]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliinstantaneous maximum≤ 406 #/100mLall year
E. colimonthly geometric mean≤ 7.63 BCFU/dall year
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Solids, total dissolveddaily maximumreport only (mg/L)Mar, Jun, Sep, Dec
Mercury, total recoverablemonthly averagereport only (ug/L)Mar, Jun, Sep, Dec
Mercury, total recoverabledaily maximumreport only (ug/L)Mar, Jun, Sep, Dec
BOD, 5-day, percent removalminimum % removal≥ 85 %all year
Solids, suspended percent removalminimum % removal≥ 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/ID0020303 · MCP: https://passage-data.com/mcp