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Electric Services, Anchorage, Alaska. NPDES permit AK0026603, in force until May 31, 2031. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | ≤ 13 deg C | Jun, Dec |
| pH | instantaneous minimum | ≥ 6.5 SU | Jun, Dec |
| pH | instantaneous maximum | ≤ 8.5 SU | Jun, Dec |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jun, Dec |
| Solids, total suspended | daily maximum | ≤ 100 mg/L | Jun, Dec |
| Solids, total suspended | monthly average | ≤ 2.5 lb/d | Jun, Dec |
| Solids, total suspended | daily maximum | ≤ 8.34 lb/d | Jun, Dec |
| Oil & Grease | monthly average | ≤ 15 mg/L | Jun, Dec |
| Oil & Grease | daily maximum | ≤ 20 mg/L | Jun, Dec |
| Oil & Grease | monthly average | ≤ 1.25 lb/d | Jun, Dec |
| Oil & Grease | daily maximum | ≤ 1.67 lb/d | Jun, Dec |
| Zinc, total recoverable | daily maximum | report only (ug/L) | Jun, Dec |
| Copper, total recoverable | daily maximum | report only (ug/L) | Jun, Dec |
| Polychlorinated biphenyls [PCBs] | maximum | ≤ 0 ug/L | Jun, Dec |
| Hydrocarbons, aromatic | daily maximum | report only (ug/L) | Jun, Dec |
| Flow, in conduit or thru treatment plant | daily maximum | ≤ 10000 gal/d | Jun, Dec |
| Hydrocarbon, aqueous | daily maximum | report only (ug/L) | Jun, Dec |
| Oil and grease visual | maximum | ≤ 0 N=0;Y=1 | Jun, Dec |
Cited limits by parameter: Alaska's rules and the federal ones.
Same industry: the 5 Electric Services permits in Alaska.
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