Southern California Gas Company Aliso Canyon
Active WDID 4 19I012204 Northridge, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Northridge, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Limekiln Creek Aliso Creek (as reported by the facility)
- Evidence: not confirmed Details
- 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 246 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Nov 14, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 3 violation records · 3 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
Reported facility location HUC12 watershed Corroborated receiving water 2026 Integrated Report waterbodies nearby
Reported location Evidence: facility-reported
- Coordinates
- 34.2424, -118.55334
- Precision
- 4 decimal places
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 12801 Tampa Ave, Northridge 91324
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Aliso Canyon Wash HUC12 180701050203
The facility's reported location lies within this HUC12 watershed (spatial derivation); it is not a discharge location.
Permits and applications Evidence: SMARTS record
Current permit record
- Permit type
- Industrial
- Application type
- Notice of Intent (WDID code I)
- Status
- Active
- Operator
- Southern California Gas Company Aliso Canyon
- Primary industry (SIC)
- 1321-Natural Gas Liquids
- Secondary SIC
- 1311-Crude Petroleum and Natural Gas
- Application ID
- 190280
- NOI processed
- Mar 18, 1996
- Last certified
- Aug 07, 2025
- Facility size
- 3342 Acres
- Impervious area
- 0 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 190280 | Industrial | Active | Mar 18, 1996 | — | Aug 07, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Limekiln Creek Aliso Creek
- Discharges directly / indirectly
- N / 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Aliso Canyon Wash CAR4052100019990201130918 | 622 m | listed | 3 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
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.
246 distinct measurements across 3 parameters, most recent sample Nov 14, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Oct 14, 2025 | Nov 14, 2025 |
| 2024 | 9 | 3 | 0 | Feb 05, 2025 | Feb 12, 2025 |
| 2023 | 9 | 3 | 0 | Dec 19, 2023 | Feb 01, 2024 |
| 2022 | 18 | 3 | 0 | Nov 07, 2022 | Mar 14, 2023 |
| 2021 | 9 | 3 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 12 | 3 | 0 | Dec 28, 2020 | Mar 15, 2021 |
| 2019 | 36 | 3 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 42 | 3 | 0 | Nov 29, 2018 | Feb 14, 2019 |
| 2017 | 36 | 3 | 0 | Jan 08, 2018 | Mar 21, 2018 |
| 2016 | 39 | 3 | 0 | Dec 16, 2016 | Jan 19, 2017 |
| 2015 | 30 | 3 | 0 | Sep 15, 2015 | Apr 29, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 84 | 0 | Sep 15, 2015 | Nov 14, 2025 | Results |
| Oil and Grease | mg/L | 81 | 41 | Sep 15, 2015 | Nov 14, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 81 | 0 | Sep 15, 2015 | Nov 14, 2025 | Results |
All results (246 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Nov 14, 2025 | Oil and Grease | 1.68 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1358391 | |
| Nov 14, 2025 | pH | 8.09 | SU | Effluent | Qualifying Storm Event | pH_Field | 1358391 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 8.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1358391 | |
| Oct 14, 2025 | Oil and Grease | 1.07 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1355158 | |
| Oct 14, 2025 | pH | 8.28 | SU | Effluent | Qualifying Storm Event | pH_Field | 1355158 | |
| Oct 14, 2025 | Total Suspended Solids (TSS) | 31.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1355158 | |
| Feb 12, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323402 | |
| Feb 12, 2025 | pH | 7.73 | SU | Effluent | Qualifying Storm Event | pH_Field | 1323402 | |
| Feb 12, 2025 | Total Suspended Solids (TSS) | 3.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323402 | |
| Feb 05, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323289 | |
| Feb 05, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1323289 | |
| Feb 05, 2025 | pH | 7.68 | SU | Effluent | Qualifying Storm Event | pH_Field | 1323289 | |
| Feb 05, 2025 | pH | 8.08 | SU | Effluent | Qualifying Storm Event | pH_Field | 1323289 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 3.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323289 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 17 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1323289 | |
| Feb 01, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275296 | |
| Feb 01, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275296 | |
| Feb 01, 2024 | pH | 7.49 | SU | Effluent | Qualifying Storm Event | pH_Field | 1275296 | |
| Feb 01, 2024 | pH | 8.19 | SU | Effluent | Qualifying Storm Event | pH_Field | 1275296 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275296 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 4.69 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275296 | |
| Dec 19, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1270871 | |
| Dec 19, 2023 | pH | 8.35 | SU | Effluent | Qualifying Storm Event | pH_Field | 1270871 | |
| Dec 19, 2023 | Total Suspended Solids (TSS) | 8.48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1270871 | |
| Mar 14, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1231877 | |
| Mar 14, 2023 | pH | 8.22 | SU | Effluent | Qualifying Storm Event | pH_Field | 1231877 | |
| Mar 14, 2023 | Total Suspended Solids (TSS) | 10.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1231877 | |
| Feb 24, 2023 | Oil and Grease | .888 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1229581 | |
| Feb 24, 2023 | pH | 8.19 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229581 | |
| Feb 24, 2023 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1229581 | |
| Dec 27, 2022 | Oil and Grease | .0682 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1221707 | |
| Dec 27, 2022 | pH | 7.29 | SU | Effluent | Qualifying Storm Event | pH_Field | 1221707 | |
| Dec 27, 2022 | Total Suspended Solids (TSS) | 8.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1221707 | |
| Nov 07, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216056 | |
| Nov 07, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216056 | |
| Nov 07, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216056 | |
| Nov 07, 2022 | pH | 7.65 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216056 | |
| Nov 07, 2022 | pH | 8.23 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216056 | |
| Nov 07, 2022 | pH | 8.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216056 | |
| Nov 07, 2022 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216056 | |
| Nov 07, 2022 | Total Suspended Solids (TSS) | 4.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216056 | |
| Nov 07, 2022 | Total Suspended Solids (TSS) | 9.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216056 | |
| Mar 28, 2022 | Oil and Grease | .581 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1179933 | |
| Mar 28, 2022 | pH | 8.09 | SU | Effluent | Qualifying Storm Event | pH_Field | 1179933 | |
| Mar 28, 2022 | Total Suspended Solids (TSS) | 30.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1179933 | |
| Dec 09, 2021 | Oil and Grease | .605 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1173569 | |
| Dec 09, 2021 | pH | 7.24 | SU | Effluent | Qualifying Storm Event | pH_Field | 1173569 | |
| Dec 09, 2021 | Total Suspended Solids (TSS) | 12.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1173569 | |
| Oct 25, 2021 | Oil and Grease | .918 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1170114 | |
| Oct 25, 2021 | pH | 7.29 | SU | Effluent | Qualifying Storm Event | pH_Field | 1170114 |
Results are shown exactly as reported by the discharger. Identical rows repeated in the State's export are shown once. Where the export contains different versions of the same sample and parameter, each version is listed and flagged. Details.
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 | 3 | 2 Violation · 0 Potential (preliminary) · 1 Dismissed | Nov 04, 2008 – Nov 13, 2015 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Feb 01, 2010 – Dec 31, 2015 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Apr 03, 2002 – Apr 03, 2002 | Oct 21, 2026 | All inspections |
| Annual reports | 11 | certified reports (contents not shown) | 2015 – 2025 | Oct 21, 2026 | All reports |
| 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 (18 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 07, 2026 | Annual reports | 1334095 | Annual report 2025 | — | |
| Jul 03, 2025 | Annual reports | 1292864 | Annual report 2024 | — | |
| Jul 08, 2024 | Annual reports | 1241862 | Annual report 2023 | — | |
| Jul 03, 2023 | Annual reports | 1187786 | Annual report 2022 | — | |
| Jul 05, 2022 | Annual reports | 1111043 | Annual report 2021 | — | |
| Jul 06, 2021 | Annual reports | 1066974 | Annual report 2020 | — | |
| Jul 02, 2020 | Annual reports | 984123 | Annual report 2019 | — | |
| Jul 05, 2019 | Annual reports | 951620 | Annual report 2018 | — | |
| Jul 02, 2018 | Annual reports | 937029 | Annual report 2017 | — | |
| Jul 12, 2017 | Annual reports | 876175 | Annual report 2016 | — | |
| Jul 19, 2016 | Annual reports | 840384 | Annual report 2015 | — | |
| Dec 31, 2015 | Enforcement actions | 422299 | NOV (Notice of Violation) | Historical | |
| Nov 13, 2015 | Violations | 859510 | Unauthorized NSWD | Violation | Report |
| Jun 13, 2012 | Enforcement actions | 409027 | SEL (Staff Enforcement Letter) | Historical | |
| Oct 18, 2010 | Violations | 848091 | Deficient BMP Implementation | Dismissed | Report |
| Feb 01, 2010 | Enforcement actions | 404975 | SEL (Staff Enforcement Letter) | Historical | |
| Nov 04, 2008 | Violations | 844227 | Deficient BMP Implementation | Violation | Report |
| Apr 03, 2002 | Inspections | 1733365 | B Type compliance | — |
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.