Clean Water Act discharge permit · NPDES CAZ483360
THVS CORPORATION, Saint Helena, CA: NPDES CAZ483360 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
THVS CORPORATION, held by THVS Corporation, holds NPDES permit CAZ483360. EPA’s file records it issued February 22, 2017 and expiring June 30, 2020. 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.
What the register holds for THVS CORPORATION: its NPDES ID, its permit type and status, its dates, its address in Saint Helena, California. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CAZ483360.
Identity
| Facility as filed | THVS CORPORATION |
|---|---|
| Permittee as filed | THVS Corporation |
| NPDES ID | CAZ483360 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | February 22, 2017 |
| Expiration date | June 30, 2020 |
| Issuing agency | CA Waterboards |
| Address | Saint Helena, CA 94574 |
| Subwatershed | Middle Napa River (HUC 180500020202) |
| SIC | 2084 – Wines, Brandy, And Brandy Spirits |
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
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES CAZ483360.
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 CAZ483360.
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 CAZ483360 there.
Nearby on the register
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- Every permit record in Saint Helena, A to Z
- Discharge permits in California
- Every permit record in California, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.