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Sewage treatment plant, major discharger, Park City, Utah. NPDES permit UT0024414 expired Jun 30, 2025; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | maximum monthly average | report only (deg F) | all year |
| Oxygen, dissolved [DO] | minimum | ≥ 5.5 mg/L | all year |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 25 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 35 mg/L | all year |
| Solids, total suspended | 30-day average | report only (mg/L) | all year |
| Nitrogen, total [as N] | maximum monthly average | ≤ 10 mg/L | Jul, Aug |
| Nitrogen, total [as N] | maximum monthly average | ≤ 10.5 mg/L | Sep–Nov |
| Nitrogen, total [as N] | maximum monthly average | ≤ 11 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, total [as N] | maximum monthly average | ≤ 10.5 mg/L | Apr–Jun |
| Nitrogen, total [as N] | annual average | ≤ 107112 lb/yr | all year |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 4.5 mg/L | Sep–Dec |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 4 mg/L | Apr–Aug |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 1 mg/L | Jul, Aug |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 2.5 mg/L | Sep–Nov |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 3 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, ammonia total [as N] | maximum monthly average | ≤ 2.5 mg/L | Apr–Jun |
| Phosphorus, total [as P] | maximum monthly average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | maximum monthly average | ≤ 4581 lb/mo | Apr–Sep |
| Phosphorus, total [as P] | annual average | ≤ 10690 lb/yr | all year |
| Phosphorus, total [as P] | maximum monthly average | report only (lb/mo) | Apr–Sep |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year |
| Cyanide, total [as CN] | daily maximum | report only (mg/L) | all year |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year |
| Arsenic, total [as As] | daily maximum | report only (mg/L) | all year |
| Barium, total [as Ba] | daily maximum | report only (mg/L) | all year |
| Barium, total [as Ba] | daily maximum | report only (mg/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year |
| Chromium, total [as Cr] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year |
| Silver, total [as Ag] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Aluminum, total [as Al] | maximum monthly average | report only (mg/L) | all year |
| Aluminum, total [as Al] | maximum monthly average | report only (mg/L) | all year |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year |
| Selenium, total [as Se] | daily maximum | report only (mg/L) | all year |
| Oil and grease | daily maximum | ≤ 10 mg/L | all year |
| Flow, in conduit or thru treatment plant | maximum monthly average | report only (MGD) | all year |
| Phosphorus, ortho | maximum monthly average | report only (mg/L) | all year |
| E. coli | monthly average | ≤ 126 #/100mL | all year |
| E. coli | weekly average | ≤ 158 #/100mL | all year |
| Nitrogen, Total | monthly load | ≤ 45817 lb | Apr–Sep |
| Nitrogen, Kjeldahl Total | maximum monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl Total | maximum monthly average | report only (mg/L) | all year |
| Phosphorus, Total | maximum monthly average | ≤ 4581 lb | Apr–Sep |
| Solids, total dissolved | maximum monthly average | ≤ 1900 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] | daily maximum | report only (mg/L) | all year |
| Mercury, total [as Hg] | daily maximum | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum monthly average | ≤ 20 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | maximum monthly average | ≤ 10 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | report only (mg/L) | all year |
| Solids, suspended percent removal | minimum % removal | ≥ 85 % | all year |
| Carbonaceous oxygen demand, % removal | minimum % removal | ≥ 85 % | all year |
| Oil and grease visual | daily maximum | report only (N=0;Y=1) | all year |
| Pass/Fail Static Renewal 48Hr Acute Ceriodaphnia dubia | daily maximum | ≤ 0 pass=0;fail=1 | Jul–Sep |
| Pass/Fail Static Renewal 96Hr Acute Pimephales Promelas | daily maximum | ≤ 0 pass=0;fail=1 | Jan–Mar |
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | maximum | ≤ 0 pass=0;fail=1 | Apr–Jun |
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | daily maximum | ≤ 0 pass=0;fail=1 | Oct–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/UT0024414 · MCP: https://passage-data.com/mcp