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Oakley City Water Improvement

Sewage treatment plant, Oakley, Utah. NPDES permit UT0020061 expired Jul 31, 2022; its limits still apply. Last 12 months: no values over a limit, 4 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (27 values), form S twice a year (2 values), form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 3 of 14 reports late

Limits in force (37)

ParameterStatisticLimitMonths
Temperature, water deg. centigrade30-day averagereport only (deg C)all year
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum monthly average≤ 25 mg/Lall year
BOD, 5-day, 20 deg. Cmaximum weekly average≤ 35 mg/Lall year
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year
pHminimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmaximum monthly average≤ 25 mg/Lall year
Solids, total suspendedmaximum weekly average≤ 35 mg/Lall year
Solids, total suspendedmaximum monthly averagereport only (mg/L)all year
Nitrogen, total [as N]30-day averagereport only (mg/L)Apr–Sep
Nitrogen, total [as N]30-day averagereport only (mg/L)Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, total [as N]30-day maximumreport only (kg/mo)Apr–Sep
Nitrogen, total [as N]30-day maximumreport only (kg/mo)Jan, Feb, Mar, Oct, Nov, Dec
Nitrogen, total [as N]semi-annual maximum≤ 1732 kg/yrApr–Sep
Nitrogen, total [as N]annual maximum≤ 3464 kg/yrall year
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]30-day averagereport only (mg/L)all year
Nitrite + Nitrate total [as N]30-day averagereport only (mg/L)all year
Phosphorus, total [as P]30-day averagereport only (mg/L)Apr–Sep
Phosphorus, total [as P]30-day averagereport only (mg/L)Jan, Feb, Mar, Oct, Nov, Dec
Phosphorus, total [as P]30-day maximumreport only (kg/mo)Apr–Sep
Phosphorus, total [as P]30-day maximumreport only (kg/mo)Jan, Feb, Mar, Oct, Nov, Dec
Phosphorus, total [as P]semi-annual maximum≤ 173 kg/yrApr–Sep
Phosphorus, total [as P]annual maximum≤ 346 kg/yrall year
Phosphorus, total [as P]30-day averagereport only (mg/L)all year
Oil and greasedaily maximum≤ 10 mg/Lall year
Phosphate, ortho [as P]30-day averagereport only (mg/L)all year
Flow, in conduit or thru treatment plantmaximum monthly average≤ .25 MGDall year
Flow, in conduit or thru treatment plant30-day arithmetic meanreport only (MGD)all year
E. colimaximum monthly average≤ 126 #/100mLall year
E. colimaximum weekly average≤ 157 #/100mLall year
Nitrogen, nitrate total [as NO3]30-day averagereport only (mg/L)all year
Nitrogen, nitrite total [as NO2]30-day averagereport only (mg/L)all year
BOD, 5-day, percent removalminimum≥ 85 %all year
Solids, suspended percent removalminimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Utah'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/UT0020061 · MCP: https://passage-data.com/mcp