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Timpanogos Sanitary Sewer District

Sewage treatment plant, major discharger, American Fork, Utah. NPDES permit UT0023639, in force until Dec 31, 2030. Last 12 months: no values over a limit, 1 of 18 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (30 values), form P quarterly, form W quarterly, form Y yearly
Last report on file
August 2026
Oct 2024 – Sep 2025
1 value over a limit, 0 required values missing, 1 of 21 reports late

Limits in force (69)

ParameterStatisticLimitMonths
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. Cmaximum monthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cmaximum weekly averagereport only (mg/L)all year
pHdaily minimum≥ 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
Solids, total suspendedmaximum weekly averagereport only (mg/L)all year
Oil & Greasedaily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]maximum monthly average≤ 10.1 mg/LApr–Jun
Nitrogen, ammonia total [as N]maximum monthly average≤ 5.2 mg/LJul–Sep
Nitrogen, ammonia total [as N]maximum monthly average≤ 13.7 mg/LOct–Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 13.7 mg/LJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 14 mg/LApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 11.4 mg/LJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 17.7 mg/LOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 17.8 mg/LJan–Mar
Nitrogen, ammonia total [as N]maximum monthly average≤ 1311 lb/dJul–Sep
Nitrogen, ammonia total [as N]maximum monthly average≤ 3418 lb/dOct–Dec
Nitrogen, ammonia total [as N]maximum monthly average≤ 3418 lb/dJan–Mar
Nitrogen, ammonia total [as N]maximum monthly average≤ 2528 lb/dApr–Jun
Nitrogen, ammonia total [as N]daily maximum≤ 2854 lb/dJul–Sep
Nitrogen, ammonia total [as N]daily maximum≤ 4423 lb/dOct–Dec
Nitrogen, ammonia total [as N]daily maximum≤ 4459 lb/dJan–Mar
Nitrogen, ammonia total [as N]daily maximum≤ 3494 lb/dApr–Jun
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Phosphorus, total [as P]annual average≤ 1 mg/Lall year
Phosphorus, total [as P]maximum monthly averagereport only (mg/L)all year
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year
Cyanide, total [as CN]quarterly maximumreport only (mg/L)all year
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year
Arsenic, total [as As]quarterly maximumreport only (mg/L)all year
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year
Cadmium, total [as Cd]quarterly maximumreport only (mg/L)all year
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year
Chromium, total [as Cr]quarterly maximumreport only (mg/L)all year
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year
Copper, total [as Cu]quarterly maximumreport only (mg/L)all year
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year
Lead, total [as Pb]quarterly maximumreport only (mg/L)all year
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year
Molybdenum, total [as Mo]quarterly maximumreport only (mg/L)all year
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year
Nickel, total [as Ni]quarterly maximumreport only (mg/L)all year
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year
Silver, total [as Ag]quarterly maximumreport only (mg/L)all year
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year
Zinc, total [as Zn]quarterly maximumreport only (mg/L)all year
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year
Selenium, total [as Se]quarterly maximumreport only (mg/L)all year
Phosphorus, orthomaximum monthly averagereport only (mg/L)all year
E. coli30-day geometric mean≤ 126 #/100mLall year
E. coli7-day geometric mean≤ 158 #/100mLall year
Solids, total dissolvedmaximum monthly averagereport only (mg/L)all year
Nitrogen, nitrate total [as NO3]maximum monthly averagereport only (mg/L)all year
Nitrogen, nitrite total [as NO2]maximum monthly averagereport only (mg/L)all year
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year
Mercury, total [as Hg]quarterly maximumreport only (mg/L)all year
BOD, 5-day, percent removalminimum % removal≥ 85 %all year
Solids, suspended percent removalminimum % removal≥ 85 %all year
Flow, totalmaximum monthly average≤ 30 MGDall year
Flow, totalmaximum monthly averagereport only (MGD)all year
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiadaily maximum≤ 0 pass=0;fail=1Apr, May, Jun, Oct, Nov, Dec
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasdaily maximum≤ 0 pass=0;fail=1Jan, Feb, Mar, Jul, Aug, Sep

How strict are these limits?

Cited limits by parameter: Utah'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/UT0023639 · MCP: https://passage-data.com/mcp