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Sewage treatment plant, major discharger, Port Angeles, Washington. NPDES permit WA0023973 expired Jan 31, 2021; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Temperature, water deg. centigrade | average | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | average | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) (alert, not enforceable) | all year | 001 |
| Oxygen, dissolved [DO] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Oxygen, dissolved [DO] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| BOD, 5-day, 20 deg. C | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily minimum | ≥ 6 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| pH | daily maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | average | ≤ 1676 lb/d | all year | 001 |
| Solids, total suspended | average | ≤ 1676 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 2515 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 2515 lb/d | all year | 001 |
| Oil and grease, hexane extr method | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Oil and grease, hexane extr method | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrite + Nitrate total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Nitrite + Nitrate total [as N] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, total [as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Phosphorus, dissolved reactive [drp as P] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Cyanide, total [as CN] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Hardness, total [as CaCO3] | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Arsenic, total [as As] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Beryllium, total [as Be] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Cadmium, total [as Cd] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chromium, hexavalent [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chromium, total [as Cr] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Copper, total [as Cu] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Lead, total [as Pb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Thallium, total [as Tl] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Nickel, total [as Ni] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Silver, total [as Ag] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Zinc, total [as Zn] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Antimony, total [as Sb] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Selenium, total [as Se] | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Total phenols | average | report only (ug/L) | all year | 001 |
| Phenolics, total | single reading | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Phenolics, total | average | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Phenolics, total | average | report only (ug/L) (alert, not enforceable) | all year | 001 |
| Chlorine, total residual | average | ≤ .5 mg/L | all year | 001 |
| Chlorine, total residual | average | ≤ .5 mg/L | all year | 001 |
| Solids, total dissolved | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Solids, total dissolved | average | report only (mg/L) (alert, not enforceable) | all year | 001 |
| Mercury, total [as Hg] | single reading | report only (ng/L) (alert, not enforceable) | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | monthly geometric mean | ≤ 200 #/100mL | all year | 001 |
| Coliform, fecal general | weekly geometric mean | ≤ 400 #/100mL | all year | 001 |
| Coliform, fecal general | weekly geometric mean | ≤ 400 #/100mL | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | average | ≤ 905 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | average | ≤ 905 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 1358 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 1358 lb/d | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Carbonaceous oxygen demand, % removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Carbonaceous oxygen demand, % removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | 002 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | 002 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | 002 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | 002 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | 002 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | 002 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | 002 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | 002 |
| Duration | total | report only (hr) | all year | 002 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | 002 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | 002 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | 002 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | 002 |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | average | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Flow | total | report only (gal/d) (alert, not enforceable) | all year | 002 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | 002 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | 002 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | 002 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | 002 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS06 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS06 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS06 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS06 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS06 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS06 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS06 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS06 |
| Duration | total | report only (hr) | all year | CS06 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS06 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS06 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS06 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS06 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS06 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS06 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS06 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS06 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS07 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS07 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS07 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS07 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS07 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS07 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS07 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS07 |
| Duration | total | report only (hr) | all year | CS07 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS07 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS07 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS07 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS07 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS07 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS07 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS07 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS07 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS08 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS08 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS08 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS08 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS08 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS08 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS08 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS08 |
| Duration | total | report only (hr) | all year | CS08 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS08 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS08 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS08 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS08 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS08 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS08 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS08 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS08 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS10 |
| Rainfall duration | average | report only (hr) (alert, not enforceable) | all year | CS10 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS10 |
| Rainfall duration | total | report only (hr) (alert, not enforceable) | all year | CS10 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS10 |
| Rainfall | average | report only (in) (alert, not enforceable) | all year | CS10 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS10 |
| Rainfall | total | report only (in) (alert, not enforceable) | all year | CS10 |
| Duration | total | report only (hr) | all year | CS10 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS10 |
| Volume, total | average | report only (gal) (alert, not enforceable) | all year | CS10 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS10 |
| Volume, total | total | report only (gal) (alert, not enforceable) | all year | CS10 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS10 |
| Duration of discharge | average | report only (hr) (alert, not enforceable) | all year | CS10 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS10 |
| Duration of discharge | total | report only (hr) (alert, not enforceable) | all year | CS10 |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | INF |
| Solids, total suspended | average | report only (mg/L) (alert, not enforceable) | all year | INF |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | INF |
| Solids, total suspended | maximum | report only (mg/L) (alert, not enforceable) | all year | INF |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | INF |
| Solids, total suspended | average | report only (lb/d) (alert, not enforceable) | all year | INF |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | INF |
| Solids, total suspended | maximum | report only (lb/d) (alert, not enforceable) | all year | INF |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | INF |
| Flow | average | report only (MGD) (alert, not enforceable) | all year | INF |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | INF |
| Flow | maximum | report only (MGD) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | average | report only (mg/L) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | average | report only (mg/L) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (mg/L) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (mg/L) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | average | report only (lb/d) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | average | report only (lb/d) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (lb/d) (alert, not enforceable) | all year | INF |
| BOD, carbonaceous [5 day, 20 C] | maximum | report only (lb/d) (alert, not enforceable) | all year | INF |
Cited limits by parameter: Washington'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/WA0023973 · MCP: https://passage-data.com/mcp