Simi Valley Base Inc
Terminated WDID 4 56I018729 Simi Valley, Ventura County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Identified receiving water on the 2026 303(d) list
- Not established
- Shown only when the reported receiving water is identified and corroborated.
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- None (no usable location)
- Monitoring results Evidence: facility-reported
- None in the current exports
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 6 violation records · 7 enforcement actions
- Counts as published in SMARTS; not a compliance determination · Details
Each label shows where a statement comes from. How to read the labels.
Overview and location
No usable coordinates in the permit record (missing).
Reported location Evidence: facility-reported
Not located: missing.
- Facility address
- Simi Valley 240 w last, Simi Valley 93062
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
No HUC12 assignment (the facility has no usable reported location, or it lies outside the loaded watersheds).
Permits and applications Evidence: SMARTS record
Current permit record
- Permit type
- Industrial
- Application type
- Notice of Intent (WDID code I)
- Status
- Terminated
- Operator
- Simi Valley Base Inc
- Primary industry (SIC)
- 1499-Miscellaneous Nonmetallic Minerals, Except Fuels
- Application ID
- 292929
- NOI processed
- Apr 01, 2004
- Termination effective
- Oct 17, 2012
- Last certified
- Mar 19, 2004
- Facility size
- 60000 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 292929 | Industrial | Terminated | Apr 01, 2004 | Oct 17, 2012 | Mar 19, 2004 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Arroyo Simi
- Discharges directly / indirectly
- — / Y (as answered in the permit application)
Evidence: not confirmed Not matchable to a single waterbody
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
Impaired waters and TMDLs
Two kinds of information, kept apart: 2026 Integrated Report waterbodies near the reported location (geographic proximity only), and TMDL records that SMARTS lists for this facility. Neither establishes where the facility discharges; see Receiving water for the facility's own statement.
Nearby waterbodies Evidence: geographic proximity
Spatial proximity only; discharge pathway not established. Being near a waterbody does not mean the facility discharges to it.
No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location (no usable location).
SMARTS TMDL records Evidence: SMARTS-reported
No TMDL records for this facility in the SMARTS TMDL export.
Reported monitoring results Evidence: facility-reported
Numeric Action Level (NAL) screening is being independently validated and is not shown. Nothing on this page states whether a result exceeded a NAL.
No industrial monitoring results for this permit are in the current exports.
Compliance and enforcement records Evidence: SMARTS record
These are records as the State Water Board publishes them in SMARTS, with the source's own types and statuses. They are not a compliance determination or rating. A record listed here is not proof of a violation beyond what the source states, and the absence of records does not establish compliance.
| Record type | Records | As published | Dates | Retrieved | List |
|---|---|---|---|---|---|
| Violations | 6 | 6 Violation · 0 Potential (preliminary) · 0 Dismissed | Feb 09, 2004 – Jul 01, 2011 | Oct 21, 2026 | All violations |
| Enforcement actions | 7 | 3 issued · 0 draft · 4 withdrawn, rescinded or superseded | Feb 09, 2004 – Aug 10, 2012 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Oct 17, 2012 – Oct 17, 2012 | Oct 21, 2026 | All inspections |
| Annual reports | 0 | certified reports (contents not shown) | — | Oct 21, 2026 | |
| Water-quality-based corrective action reports | 0 | reports, by parameter | — | Oct 21, 2026 |
Each record type is counted by its own SMARTS identifier. A violation and the enforcement action that cites it are two records in two lists; they are never added together.
Chronological record history (14 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Oct 17, 2012 | Inspections | 2017136 | NOT | — | No Further Action |
| Aug 10, 2012 | Enforcement actions | 409536 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Withdrawn | |
| Jul 01, 2011 | Violations | 848781 | Late Report | Violation | Report |
| Jun 23, 2010 | Enforcement actions | 404346 | SEL (Staff Enforcement Letter) | Historical | |
| Jun 16, 2009 | Enforcement actions | 401454 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Withdrawn | |
| Feb 05, 2009 | Violations | 843665 | Deficient BMP Implementation | Violation | Report |
| Jul 02, 2008 | Violations | 841283 | Late Report | Violation | Report |
| Aug 24, 2005 | Enforcement actions | 410407 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2005 | Violations | 849514 | Late Report | Violation | Report |
| Sep 10, 2004 | Enforcement actions | 410406 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Withdrawn | |
| Jul 02, 2004 | Violations | 849513 | Late Report | Violation | Report |
| Apr 09, 2004 | Enforcement actions | 251262 | NOV (Notice of Violation) | Withdrawn | |
| Feb 09, 2004 | Enforcement actions | 251763 | NNC (Notice of Non-Compliance) | Historical | |
| Feb 09, 2004 | Violations | 849512 | Failure to Obtain Permit | Violation | Inspection |
Sources and provenance
| Information | Source | Retrieved or published |
|---|---|---|
| Permit, location, receiving-water text | SMARTS Industrial Application Specific Data | Oct 20, 2026 |
| Permit history | SMARTS Storm Water Applications | Oct 20, 2026 |
| Monitoring results | SMARTS Industrial Parameter Data | Oct 20, 2026 |
| Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12) | USGS | 2026-10-22 |
| 2026 California Integrated Report, Appendix A: 2026 303(d) List (final) | SWRCB | 2026-10-22 |
| Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0) | SWRCB GIS | 2026-10-22 |
| SMARTS TMDL requirements | SMARTS | 2026-10-21 |
Relationships computed 2026-10-22 with methods facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1; proximity threshold 1.0 km.
How to read the evidence labels
- Evidence: SMARTS record Evidence: facility-reported Information as published in SMARTS or reported by the discharger.
- Evidence: identification corroborated The reported receiving-water name identifies one official waterbody and the facility's location is consistent with it. It does not establish a discharge pathway.
- Evidence: candidate, awaiting review Evidence: not confirmed The reported name could match one or more official waterbodies, but no identification has been confirmed; nothing is assigned without review.
- Evidence: spatial Evidence: geographic proximity Derived from the reported location only.
- Evidence: SMARTS-reported Source records whose links to official references are not yet reviewed.
- Evidence: unavailable The information could not be loaded or is not in the sources.
Records are shown as published and are not compliance determinations. How geographic context is derived.