EPA · Oregon · discharge permits by parameter
pH, maximum in Oregon
- 10Permits carrying a limit
- 1With a recorded exceedance
- 549Nationwide
A parameter is the substance or the property EPA writes a numeric limit for, and this page counts the Oregon permits that carry one for pH, maximum: 10 permits, of which 1 have a recorded exceedance. Nationwide the same parameter appears in 549 permits. Each row below is one permit, and it opens the agency’s own record for that permit.
Permits
| Permit holder | NPDES ID | City | Program | Discharger | Receiving water |
|---|---|---|---|---|---|
| DURHAM STP | OR0028118 | TIGARD | Publicly owned treatment works | Major | TUALATIN RIVER |
| ROCK CREEK STP | OR0029777 | HILLSBORO | Publicly owned treatment works | Major | TUALATIN RIVER (RM 38) |
Other pollutants in Oregon
- Chlorine, total residual 124
- E. coli 198
- Ultraviolet light transmittance 14
- Excess thermal load 73
- Nitrite Plus Nitrate Total 22
- Flow, total 37
- BOD, 5-day, 20 deg. C 3
- Enterococci - % samples exceeding limit 11
- Enterococci 18
- Ultraviolet light dosage 48
- pH, minimum 10
- Solids, total dissolved 40
- Formaldehyde 7
- Mercury, dissolved [as Hg] 5
- Mercury, total [as Hg] 13
- Mercury, total recoverable 3
- Depth of pond or reservoir in feet 4
- Coliform, fecal general 26
- BOD, carbonaceous [5 day, 20 C] 39
- BOD, carb-5 day, 20 deg C, percent removal 21
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