Clean Water Act discharge permit · NPDES CA0079545
BIG CREEK POWERHOUSE NO. 1 WWTP, Big Creek, CA: NPDES CA0079545 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
BIG CREEK POWERHOUSE NO. 1 WWTP, held by SOUTHERN CALIF EDISON CO, holds NPDES permit CA0079545, which discharges to San Joaquin River. EPA’s file records it issued October 21, 2005 and expiring October 21, 2010. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for BIG CREEK POWERHOUSE NO. 1 WWTP: its NPDES ID, its permit type and status, its dates, its address in Big Creek, California, its receiving water, and 11 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CA0079545.
Identity
| Facility as filed | BIG CREEK POWERHOUSE NO. 1 WWTP |
|---|---|
| Permittee as filed | SOUTHERN CALIF EDISON CO |
| NPDES ID | CA0079545 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 21, 2005 |
| Expiration date | October 21, 2010 |
| Address | Big Creek, CA 93605 |
| Receiving water | SAN JOAQUIN RIVER |
| Subwatershed | Lower Big Creek (HUC 180400060904) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 11Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 9 | 0 | 0 | ||
| Solids, total suspended | 9 | 0 | 0 | ||
| Phosphorus, total [as P] | 4 | 0 | 0 | ||
| Specific conductance | 2 | 0 | 0 | ||
| pH | 2 | 0 | 0 | ||
| Solids, settleable | 2 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Coliform, total general | 2 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CA0079545.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES CA0079545.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, CA0079545.
Start the watch
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- One watershed — $2,990/year
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID CA0079545 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.