Clean Water Act discharge permit · NPDES CA0085171
EMPIRE MINE STATE HISTORIC PARK, Grass Valley, CA: NPDES CA0085171 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 39Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
EMPIRE MINE STATE HISTORIC PARK, held by CALIFORNIA DEPT PARKS AND REC, holds NPDES permit CA0085171, which discharges to South Fork Of Wolf Creek. EPA’s file records it issued June 23, 2006 and expiring July 31, 2011. 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.
Identity
| Facility as filed | EMPIRE MINE STATE HISTORIC PARK |
|---|---|
| Permittee as filed | CALIFORNIA DEPT PARKS AND REC |
| NPDES ID | CA0085171 |
| 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 | June 23, 2006 |
| Expiration date | July 31, 2011 |
| Address | Grass Valley, CA 95945 |
| Receiving water | SOUTH FORK OF WOLF CREEK |
| Subwatershed | Rattlesnake Creek-Wolf Creek (HUC 180201260202) |
| Other EPA IDs (FRS) | RCRA handler CAP000070367 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 39Pollutants on file
- 39Under a numeric limit
- 13With 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 |
|---|---|---|---|---|---|
| pH | 4 | 2 | 0 | ||
| Arsenic, total recoverable | 4 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 2 | 0 | ||
| Turbidity | 2 | 2 | 0 | ||
| Specific conductance | 4 | 1 | 0 | ||
| Iron, total recoverable | 4 | 1 | 0 | ||
| Manganese, total recoverable | 4 | 1 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 1 | 0 | ||
| Solids, total dissolved | 2 | 1 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 1 | 0 | ||
| Color [PT-CO units] | 1 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 1 | 0 | ||
| Oxygen, dissolved percent saturation | 1 | 1 | 0 | ||
| Thallium, total recoverable | 6 | 0 | 0 | ||
| Nickel, total recoverable | 6 | 0 | 0 | ||
| Zinc, total recoverable | 6 | 0 | 0 | ||
| Cadmium, total recoverable | 6 | 0 | 0 | ||
| Lead, total recoverable | 6 | 0 | 0 | ||
| Copper, total recoverable | 6 | 0 | 0 | ||
| Mercury, total recoverable | 6 | 0 | 0 | ||
| Solids, total suspended | 5 | 0 | 0 | ||
| Aluminum, total recoverable | 5 | 0 | 0 | ||
| Cobalt, total recoverable | 4 | 0 | 0 | ||
| Barium, total recoverable | 4 | 0 | 0 | ||
| Vanadium, total recoverable | 4 | 0 | 0 | ||
| Antimony, total recoverable | 4 | 0 | 0 | ||
| Solids, settleable | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Chromium, total recoverable | 2 | 0 | 0 | ||
| Molybdenum, total recoverable | 2 | 0 | 0 | ||
| Cyanide, total recoverable | 2 | 0 | 0 | ||
| Methylmercury | 2 | 0 | 0 | ||
| %Surv Static 96Hr Acute Oncorhynchus Mykiss | 2 | 0 | 0 | ||
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 1 | 0 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CA0085171.
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 CA0085171.
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.
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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 CA0085171 there.
Nearby on the register
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- Every permit record in California, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.