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Kuna, City of

Sewage treatment plant, major discharger, Kuna, Idaho. NPDES permit ID0028355 expired May 31, 2014; 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: form A monthly (48 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 0 of 12 reports late

Limits in force (51)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Oxygen, dissolved [DO]monthly minimumreport only (mg/L)all year
Oxygen, dissolved [DO]monthly averagereport 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≤ 876 lb/dall year
BOD, 5-day, 20 deg. Cweekly average≤ 1314 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
pHinstantaneous minimum≥ 6.3 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≤ 876 lb/dall year
Solids, total suspendedweekly average≤ 1314 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]monthly average≤ 1.7 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 50 lb/dall year
Nitrogen, ammonia total [as N]daily maximum≤ 115 lb/dall year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)Mar, Jun, Sep, Dec
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 average≤ 70 ug/LMay–Sep
Phosphorus, total [as P]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Phosphorus, total [as P]weekly average≤ 105 ug/LMay–Sep
Phosphorus, total [as P]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Oct, Nov, Dec
Phosphorus, total [as P]monthly average≤ 1.1 lb/dMay–Sep
Phosphorus, total [as P]weekly average≤ 1.65 lb/dMay–Sep
Phosphorus, total [as P]monthly averagereport only (ug/L)May–Sep
Phosphorus, total [as P]monthly averagereport only (%)May–Sep
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
Oil and greasemonthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Oil and greasedaily 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
Chlorine, total residualmonthly average≤ 50 ug/Lall year
Chlorine, total residualdaily maximum≤ 50 ug/Lall year
Chlorine, total residualmonthly average≤ .46 lb/dall year
Chlorine, total residualdaily maximum≤ .92 lb/dall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. coliinstantaneous maximum≤ 576 #/100mLall year
Solids, total dissolvedmonthly averagereport only (mg/L)Mar, Jun, Sep, Dec
Solids, total dissolveddaily maximumreport only (mg/L)Mar, Jun, Sep, Dec
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year
Toxicity, Chronicdaily maximumreport only (toxic)Apr, Oct

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ID0028355 · MCP: https://passage-data.com/mcp