Clean Water Act discharge permit · NPDES CA0085243
ROYAL MOUNTAIN KING MINE, Copperopolis, CA: NPDES CA0085243 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 159Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ROYAL MOUNTAIN KING MINE, held by Meridian Beartrack Company, holds NPDES permit CA0085243, which discharges to Littlejohns Creek. EPA’s file records it issued February 1, 2018 and expiring January 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ROYAL MOUNTAIN KING MINE |
|---|---|
| Permittee as filed | Meridian Beartrack Company |
| NPDES ID | CA0085243 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 1, 2018 |
| Expiration date | January 31, 2023 |
| Address | Copperopolis, CA 95228 |
| Receiving water | Littlejohns Creek |
| Subwatershed | McCarty Creek-Littlejohns Creek (HUC 180400510201) |
| SIC | 9999 – Nonclassifiable Establishments |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 188Pollutants on file
- 159Under a numeric limit
- 185With a violation of any kind
- 3With 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; the 60 with the most exceedances of 188 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Arsenic, total recoverable | 18 | 27 | 3 | March 31, 2023 | 18% over the limit |
| Oxygen, dissolved [DO] | 1 | 5 | 2 | March 31, 2009 | 19% over the limit |
| Antimony, total recoverable | 2 | 7 | 1 | April 30, 2012 | 606% over the limit |
| Selenium, total recoverable | 4 | 13 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 7 | 0 | ||
| TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum) | 4 | 6 | 0 | ||
| TU Static Renewal 7-Day Chronic Ceriodaphnia dubia | 4 | 6 | 0 | ||
| TU Static Renewal 7-Day Chronic Pimphales promelas | 4 | 6 | 0 | ||
| pH | 3 | 6 | 0 | ||
| Solids, total dissolved | 3 | 5 | 0 | ||
| Specific conductance | 2 | 5 | 0 | ||
| %Surv Static Renewal 96Hr Oncorhynchus mykiss | 4 | 4 | 0 | ||
| Solids, total suspended | 1 | 4 | 0 | ||
| Zinc, total recoverable | 1 | 4 | 0 | ||
| Cadmium, total recoverable | 1 | 4 | 0 | ||
| Lead, total recoverable | 1 | 4 | 0 | ||
| Copper, total recoverable | 1 | 4 | 0 | ||
| Mercury, total recoverable | 1 | 4 | 0 | ||
| Sulfate, total [as SO4] | 1 | 3 | 0 | ||
| Manganese, total recoverable | 1 | 3 | 0 | ||
| N-Nitrosodimethylamine [NDMA] | 1 | 3 | 0 | ||
| 2-Chloroethyl vinyl ether, [mixed] | 1 | 3 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 1 | 2 | 0 | ||
| Cyanide, total [as CN] | 1 | 2 | 0 | ||
| Iron, total recoverable | 1 | 2 | 0 | ||
| Thallium, total recoverable | 1 | 2 | 0 | ||
| Beryllium, total recoverable [as Be] | 1 | 2 | 0 | ||
| Chromium, hexavalent [as Cr] | 1 | 2 | 0 | ||
| Chromium, trivalent [as Cr] | 1 | 2 | 0 | ||
| Nickel, total recoverable | 1 | 2 | 0 | ||
| Silver total recoverable | 1 | 2 | 0 | ||
| Aluminum, total recoverable | 1 | 2 | 0 | ||
| 2-Methyl-4,6-dinitrophenol | 1 | 2 | 0 | ||
| Dichlorobromomethane | 1 | 2 | 0 | ||
| Carbon tetrachloride | 1 | 2 | 0 | ||
| 1,2-Dichloroethane | 1 | 2 | 0 | ||
| Bromoform | 1 | 2 | 0 | ||
| Dibromochloromethane | 1 | 2 | 0 | ||
| Chloroform | 1 | 2 | 0 | ||
| Toluene | 1 | 2 | 0 | ||
| Benzene | 1 | 2 | 0 | ||
| .delta.-BHC | 1 | 2 | 0 | ||
| Acenaphthylene | 1 | 2 | 0 | ||
| Acenaphthene | 1 | 2 | 0 | ||
| Acrolein | 1 | 2 | 0 | ||
| Acrylonitrile | 1 | 2 | 0 | ||
| Anthracene | 1 | 2 | 0 | ||
| Benzo[b]fluoranthene | 1 | 2 | 0 | ||
| Benzo[k]fluoranthene | 1 | 2 | 0 | ||
| Benzo[a]pyrene | 1 | 2 | 0 | ||
| Bis[2-chloroethyl] ether | 1 | 2 | 0 | ||
| Bis[2-chloroethoxy]methane | 1 | 2 | 0 | ||
| Bis[2-chloroisopropyl] ether | 1 | 2 | 0 | ||
| Butyl benzyl phthalate | 1 | 2 | 0 | ||
| Chlorobenzene | 1 | 2 | 0 | ||
| Chrysene | 1 | 2 | 0 | ||
| Diethyl phthalate | 1 | 2 | 0 | ||
| Dimethyl phthalate | 1 | 2 | 0 | ||
| 1,2-Diphenylhydrazine | 1 | 2 | 0 |
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 CA0085243.
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, CA0085243.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 CA0085243 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.