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Sewage treatment plant, major discharger, North Salt Lake, Utah. NPDES permit UT0021628, in force until Dec 8, 2026. Last 12 months: no values over a limit, 1 of 17 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | maximum monthly average | report only (deg C) | all year |
| Oxygen, dissolved [DO] | daily minimum | ≥ 5 mg/L | all year |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 25 mg/L | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum monthly average | ≤ 20 mg/L | Jul–Sep |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 35 mg/L | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | maximum weekly average | ≤ 27 mg/L | Jul–Sep |
| BOD, 5-day, 20 deg. C | maximum monthly average | report only (mg/L) | all year |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | maximum monthly average | ≤ 25 mg/L | all year |
| Solids, total suspended | maximum weekly average | ≤ 35 mg/L | all year |
| Solids, total suspended | maximum monthly average | report only (mg/L) | all year |
| Oil & Grease | daily maximum | ≤ 10 mg/L | all year |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 8 mg/L | Jul–Sep |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 14 mg/L | Jan–Mar |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 12 mg/L | Apr–Jun |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 20 mg/L | Oct–Dec |
| Nitrogen, ammonia total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | maximum weekly average | ≤ 30 mg/L | Jul–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 17 mg/L | Jan–Mar |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 26 mg/L | Apr–Jun |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 40 mg/L | Oct–Dec |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (mg/L) | all year |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year |
| Phosphorus, total [as P] | 30-day average | report only (mg/L) | all year |
| Cyanide, free [as free] | maximum monthly average | report only (mg/L) | all year |
| Arsenic, total [as As] | quarterly average | report only (mg/L) | all year |
| Arsenic, total [as As] | quarterly average | report only (mg/L) | all year |
| Cadmium, total [as Cd] | quarterly average | report only (mg/L) | all year |
| Cadmium, total [as Cd] | quarterly average | report only (mg/L) | all year |
| Chromium, total [as Cr] | quarterly average | report only (mg/L) | all year |
| Chromium, total [as Cr] | quarterly average | report only (mg/L) | all year |
| Copper, total [as Cu] | quarterly average | report only (mg/L) | all year |
| Copper, total [as Cu] | quarterly average | report only (mg/L) | all year |
| Lead, total [as Pb] | quarterly average | report only (mg/L) | all year |
| Lead, total [as Pb] | quarterly average | report only (mg/L) | all year |
| Molybdenum, total [as Mo] | quarterly average | report only (mg/L) | all year |
| Molybdenum, total [as Mo] | quarterly average | report only (mg/L) | all year |
| Nickel, total [as Ni] | quarterly average | report only (mg/L) | all year |
| Nickel, total [as Ni] | quarterly average | report only (mg/L) | all year |
| Silver, total [as Ag] | quarterly average | report only (mg/L) | all year |
| Silver, total [as Ag] | quarterly average | report only (mg/L) | all year |
| Zinc, total [as Zn] | quarterly average | report only (mg/L) | all year |
| Zinc, total [as Zn] | quarterly average | report only (mg/L) | all year |
| Selenium, total [as Se] | quarterly average | report only (mg/L) | all year |
| Selenium, total [as Se] | quarterly average | report only (mg/L) | all year |
| Phosphate, ortho [as P] | 30-day average | report only (mg/L) | all year |
| Flow, in conduit or thru treatment plant | maximum monthly average | ≤ 4 MGD | all year |
| Chlorine, total residual | daily maximum | ≤ .253 mg/L | Oct–Dec |
| Chlorine, total residual | daily maximum | ≤ .321 mg/L | Jul–Sep |
| Chlorine, total residual | daily maximum | ≤ .134 mg/L | Jan–Mar |
| Chlorine, total residual | daily maximum | ≤ .163 mg/L | Apr–Jun |
| E. coli | maximum monthly average | ≤ 126 #/100mL | all year |
| E. coli | maximum weekly average | ≤ 157 #/100mL | all year |
| Solids, total dissolved [TDS] | maximum monthly average | report only (mg/L) | all year |
| Nitrogen, nitrate total [as NO3] | maximum monthly average | report only (mg/L) | all year |
| Nitrogen, nitrite total [as NO2] | maximum monthly average | report only (mg/L) | all year |
| Mercury, total [as Hg] | quarterly average | report only (mg/L) | all year |
| Mercury, total [as Hg] | quarterly average | report only (mg/L) | all year |
| BOD, 5-day, percent removal | minimum % removal | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum % removal | ≥ 85 % | all year |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | report only (N=0;Y=1) | Jan, Feb, Mar, Jul, Aug, Sep |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | daily maximum | report only (N=0;Y=1) | Apr, May, Jun, Oct, Nov, Dec |
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/UT0021628 · MCP: https://passage-data.com/mcp