Airgas USA LLC Los Angeles CA W006
Active WDID 4 19I021722 Los Angeles, 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
- Los Angeles, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Pacific Ocean (as reported by the facility)
- Evidence: candidate, awaiting review 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
- None
- Monitoring results Evidence: facility-reported
- 103 distinct results, 4 reporting years (2018 to 2021)
- Most recent sample Dec 30, 2021 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 4 violation records · 6 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
- 33.9111, -118.2798
- 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
- 352 W 133rd St, Los Angeles 90061
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Lower Dominguez Channel HUC12 180701060102
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
- Airgas West Inc
- Primary industry (SIC)
- 2813-Industrial Gases
- Application ID
- 349997
- NOI processed
- Aug 05, 2008
- Last certified
- Dec 04, 2024
- Facility size
- 247432 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 349997 | Industrial | Active | Aug 05, 2008 | — | Dec 04, 2024 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Pacific Ocean
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
Why it is not confirmed (1)
- C1 name is only a prefix of official names
290 official waterbodies share this name; none is assigned without review.
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.
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.
103 distinct measurements across 6 parameters, most recent sample Dec 30, 2021.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2021 | 11 | 6 | 0 | Dec 30, 2021 | Dec 30, 2021 |
| 2020 | 20 | 5 | 0 | Jan 29, 2021 | Mar 15, 2021 |
| 2019 | 18 | 6 | 0 | Nov 27, 2019 | Dec 23, 2019 |
| 2018 | 54 | 6 | 0 | Dec 06, 2018 | May 16, 2019 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total Recoverable | mg/L | 18 | 1 | Dec 06, 2018 | Dec 30, 2021 | Results |
| Iron, Total Recoverable | mg/L | 18 | 2 | Dec 06, 2018 | Dec 30, 2021 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 18 | 0 | Dec 06, 2018 | Dec 30, 2021 | Results |
| Total Suspended Solids (TSS) | mg/L | 18 | 0 | Dec 06, 2018 | Dec 30, 2021 | Results |
| pH | SU | 17 | 0 | Dec 06, 2018 | Dec 30, 2021 | Results |
| Oil and Grease | mg/L | 14 | 10 | Dec 06, 2018 | Dec 30, 2021 | Results |
All results (103 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 30, 2021 | Aluminum, Total Recoverable | .22 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1177097 | |
| Dec 30, 2021 | Aluminum, Total Recoverable | .14 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1177097 | |
| Dec 30, 2021 | Iron, Total Recoverable | .48 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1177097 | |
| Dec 30, 2021 | Iron, Total Recoverable | .18 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1177097 | |
| Dec 30, 2021 | Nitrite Plus Nitrate (as N) | .19 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1177097 | |
| Dec 30, 2021 | Nitrite Plus Nitrate (as N) | .41 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1177097 | |
| Dec 30, 2021 | Oil and Grease | 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1177097 | |
| Dec 30, 2021 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1177097 | |
| Dec 30, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1177097 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 4.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1177097 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1177097 | |
| Mar 15, 2021 | Aluminum, Total Recoverable | .096 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1148285 | |
| Mar 15, 2021 | Aluminum, Total Recoverable | ND .02 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1148285 | |
| Mar 15, 2021 | Iron, Total Recoverable | .12 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1148285 | |
| Mar 15, 2021 | Iron, Total Recoverable | ND .05 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1148285 | |
| Mar 15, 2021 | Nitrite Plus Nitrate (as N) | .45 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1148285 | |
| Mar 15, 2021 | Nitrite Plus Nitrate (as N) | .39 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1148285 | |
| Mar 15, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1148285 | |
| Mar 15, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1148285 | |
| Mar 15, 2021 | Total Suspended Solids (TSS) | 7.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1148285 | |
| Mar 15, 2021 | Total Suspended Solids (TSS) | 7.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1148285 | |
| Jan 29, 2021 | Aluminum, Total Recoverable | .14 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1143834 | |
| Jan 29, 2021 | Aluminum, Total Recoverable | .092 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1143834 | |
| Jan 29, 2021 | Iron, Total Recoverable | .16 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1143834 | |
| Jan 29, 2021 | Iron, Total Recoverable | .11 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1143834 | |
| Jan 29, 2021 | Nitrite Plus Nitrate (as N) | .35 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1143834 | |
| Jan 29, 2021 | Nitrite Plus Nitrate (as N) | .46 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1143834 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1143834 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1143834 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1143834 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | 8.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1143834 | |
| Dec 23, 2019 | Aluminum, Total Recoverable | .19 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1100331 | |
| Dec 23, 2019 | Iron, Total Recoverable | .36 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1100331 | |
| Dec 23, 2019 | Nitrite Plus Nitrate (as N) | .19 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1100331 | |
| Dec 23, 2019 | Oil and Grease | 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1100331 | |
| Dec 23, 2019 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1100331 | |
| Dec 23, 2019 | Total Suspended Solids (TSS) | 1.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1100331 | |
| Nov 27, 2019 | Aluminum, Total Recoverable | .39 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1095471 | |
| Nov 27, 2019 | Aluminum, Total Recoverable | .99 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1095471 | |
| Nov 27, 2019 | Iron, Total Recoverable | .4 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1095471 | |
| Nov 27, 2019 | Iron, Total Recoverable | 1.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1095471 | |
| Nov 27, 2019 | Nitrite Plus Nitrate (as N) | .7 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1095471 | |
| Nov 27, 2019 | Nitrite Plus Nitrate (as N) | 1.1 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1095471 | |
| Nov 27, 2019 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1095471 | |
| Nov 27, 2019 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1095471 | |
| Nov 27, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1095471 | |
| Nov 27, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1095471 | |
| Nov 27, 2019 | Total Suspended Solids (TSS) | 9.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1095471 | |
| Nov 27, 2019 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1095471 | |
| May 16, 2019 | Aluminum, Total Recoverable | .44 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1059073 |
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 | 4 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Dec 18, 2008 – Jul 15, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 6 | 6 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 09, 2010 – Sep 10, 2025 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Jun 02, 2011 – Jun 07, 2016 | 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 (23 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2026 | Annual reports | 1335775 | Annual report 2025 | — | |
| Sep 10, 2025 | Enforcement actions | 463406 | NOV (Notice of Violation) | Historical | |
| Sep 09, 2025 | Annual reports | 1294610 | Annual report 2024 | — | |
| Aug 28, 2025 | Enforcement actions | 458197 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Aug 08, 2025 | Enforcement actions | 457139 | NOV (Notice of Violation) | Historical | |
| Jul 15, 2025 | Violations | 892610 | Late Report | Violation | Report |
| Jun 11, 2024 | Annual reports | 1243719 | Annual report 2023 | — | |
| Jun 16, 2023 | Annual reports | 1189746 | Annual report 2022 | — | |
| Jul 06, 2022 | Annual reports | 1113157 | Annual report 2021 | — | |
| Jun 07, 2021 | Annual reports | 1069188 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 986491 | Annual report 2019 | — | |
| Jun 11, 2019 | Annual reports | 954067 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 939484 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 878756 | Annual report 2016 | — | |
| Jul 12, 2016 | Annual reports | 844761 | Annual report 2015 | — | |
| Jun 07, 2016 | Inspections | 2030252 | B Type compliance | — | No Further Action |
| Sep 23, 2015 | Enforcement actions | 420215 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Feb 12, 2015 | Enforcement actions | 418270 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 02, 2014 | Violations | 856325 | Late Report | Violation | Report |
| Jun 02, 2011 | Inspections | 2011906 | Non-compliance Follow-up | — | No Further Action |
| Aug 09, 2010 | Enforcement actions | 404933 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 02, 2010 | Violations | 856324 | Late Report | Violation | Report |
| Dec 18, 2008 | Violations | 844185 | Deficient BMP Implementation | Violation | Report |
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.