Clean Water Act discharge permit · NPDES CA0030198
EXPLORATORIUM'S HEATING AND COOLING SYSTEM AND FOG BRIDGE DESALINATION SYSTEM, San Francisco, CA: NPDES CA0030198 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 2Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
EXPLORATORIUM'S HEATING AND COOLING SYSTEM AND FOG BRIDGE DESALINATION SYSTEM, held by Exploratorium, The, holds NPDES permit CA0030198, which discharges to San Francisco Bay Central Basin. EPA’s file records it issued February 10, 2016 and expiring March 31, 2021. 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 | EXPLORATORIUM'S HEATING AND COOLING SYSTEM AND FOG BRIDGE DESALINATION SYSTEM |
|---|---|
| Permittee as filed | Exploratorium, The |
| NPDES ID | CA0030198 |
| 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 | February 10, 2016 |
| Expiration date | March 31, 2021 |
| Address | San Francisco, CA 94111 |
| Receiving water | San Francisco Bay Central Basin |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Angel Island-San Francisco Bay Estuaries (HUC 180500021001) |
| SIC | 8733 – Noncommercial Research Organizations |
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
- 2Pollutants on file
- 2Under a numeric limit
- 1With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 8 | 8 | 0 | ||
| Temperature, water deg. fahrenheit | 3 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CA0030198.
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 CA0030198.
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
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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 CA0030198 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.