Baker Coupling Co Inc
Terminated WDID 4 19I018987 Los Angeles, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Terminated 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
- Los Angeles River (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 123 distinct results, 6 reporting years (2015 to 2021)
- Most recent sample Dec 30, 2021 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 3 violation records · 2 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
- 34.01069, -118.23033
- Precision
- 5 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
- 2929 S Santa Fe Ave, Los Angeles 90058
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Chavez Ravine-Los Angeles River HUC12 180701050401
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
- Terminated
- Operator
- Baker Coupling Co Inc
- Primary industry (SIC)
- 3494-Valves and Pipe Fittings, NEC
- Application ID
- 191795
- NOI processed
- Sep 02, 2004
- Termination effective
- Apr 10, 2024
- Last certified
- Jun 16, 2015
- Facility size
- 2.1 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 191795 | Industrial | Terminated | Sep 02, 2004 | Apr 10, 2024 | Jun 16, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Los Angeles River
- 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
7 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Los Angeles River Reach 2 (Carson to Figueroa Street) CAR4051501019990202085021 | 812 m | listed | 9 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
SMARTS TMDL records Evidence: SMARTS-reported
SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.
| TMDL | Waterbody (as reported) | Parameter | Limit | Type | Period | Due | Discharges to TMDL water |
|---|---|---|---|---|---|---|---|
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Zinc, Total | .159 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Nitrogen TMDL | Los Angeles River Watershed | Nitrite Plus Nitrate (as N) | 8 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
2 records. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.
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.
123 distinct measurements across 12 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 | 25 | 9 | 0 | Oct 25, 2021 | Dec 30, 2021 |
| 2019 | 14 | 7 | 0 | Dec 04, 2019 | Mar 12, 2020 |
| 2018 | 35 | 7 | 0 | Dec 06, 2018 | Feb 14, 2019 |
| 2017 | 14 | 7 | 0 | Jan 09, 2018 | Mar 22, 2018 |
| 2016 | 28 | 7 | 0 | Dec 16, 2016 | Jan 09, 2017 |
| 2015 | 7 | 7 | 0 | Jan 05, 2016 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nitrite Plus Nitrate (as N) | mg/L | 17 | 1 | Jan 05, 2016 | Dec 30, 2021 | Results |
| Oil and Grease | mg/L | 17 | 9 | Jan 05, 2016 | Dec 30, 2021 | Results |
| pH | SU | 17 | 0 | Jan 05, 2016 | Dec 30, 2021 | Results |
| Total Suspended Solids (TSS) | mg/L | 17 | 0 | Jan 05, 2016 | Dec 30, 2021 | Results |
| Aluminum, Total Recoverable | mg/L | 12 | 0 | Jan 09, 2018 | Dec 30, 2021 | Results |
| Iron, Total Recoverable | mg/L | 12 | 0 | Jan 09, 2018 | Dec 30, 2021 | Results |
| Zinc, Total Recoverable | mg/L | 12 | 0 | Jan 09, 2018 | Dec 30, 2021 | Results |
| Aluminum, Total | mg/L | 5 | 0 | Jan 05, 2016 | Jan 09, 2017 | Results |
| Iron, Total | mg/L | 5 | 0 | Jan 05, 2016 | Jan 09, 2017 | Results |
| Zinc, Total | mg/L | 5 | 0 | Jan 05, 2016 | Jan 09, 2017 | Results |
| Nitrate, Total (as N) | mg/L | 2 | 0 | Dec 14, 2021 | Dec 30, 2021 | Results |
| Nitrite, Total (as N) | mg/L | 2 | 1 | Dec 14, 2021 | Dec 30, 2021 | Results |
All results (123 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 30, 2021 | Aluminum, Total Recoverable | .21 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1177258 | |
| Dec 30, 2021 | Iron, Total Recoverable | 1.5 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1177258 | |
| Dec 30, 2021 | Nitrate, Total (as N) | .21 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1177258 | |
| Dec 30, 2021 | Nitrite Plus Nitrate (as N) | .25 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1177258 | |
| Dec 30, 2021 | Nitrite, Total (as N) | ND .05 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1177258 | |
| Dec 30, 2021 | Oil and Grease | 24 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1177258 | |
| Dec 30, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1177258 | |
| Dec 30, 2021 | Total Suspended Solids (TSS) | 19 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1177258 | |
| Dec 30, 2021 | Zinc, Total Recoverable | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1177258 | |
| Dec 14, 2021 | Aluminum, Total Recoverable | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1174797 | |
| Dec 14, 2021 | Iron, Total Recoverable | .87 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1174797 | |
| Dec 14, 2021 | Nitrate, Total (as N) | .48 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1174797 | |
| Dec 14, 2021 | Nitrite Plus Nitrate (as N) | .53 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1174797 | |
| Dec 14, 2021 | Nitrite, Total (as N) | .053 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1174797 | |
| Dec 14, 2021 | Oil and Grease | 6.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1174797 | |
| Dec 14, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1174797 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1174797 | |
| Dec 14, 2021 | Zinc, Total Recoverable | .2 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1174797 | |
| Oct 25, 2021 | Aluminum, Total Recoverable | .51 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1170138 | |
| Oct 25, 2021 | Iron, Total Recoverable | 2.5 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1170138 | |
| Oct 25, 2021 | Nitrite Plus Nitrate (as N) | 2.6 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1170138 | |
| Oct 25, 2021 | Oil and Grease | 2.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1170138 | |
| Oct 25, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1170138 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1170138 | |
| Oct 25, 2021 | Zinc, Total Recoverable | .38 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1170138 | |
| Mar 12, 2020 | Aluminum, Total Recoverable | .34 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1105820 | |
| Mar 12, 2020 | Iron, Total Recoverable | 1.9 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1105820 | |
| Mar 12, 2020 | Nitrite Plus Nitrate (as N) | .14 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1105820 | |
| Mar 12, 2020 | Oil and Grease | ND 2.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1105820 | |
| Mar 12, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1105820 | |
| Mar 12, 2020 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1105820 | |
| Mar 12, 2020 | Zinc, Total Recoverable | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1105820 | |
| Dec 04, 2019 | Aluminum, Total Recoverable | .37 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1099445 | |
| Dec 04, 2019 | Iron, Total Recoverable | 1.6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1099445 | |
| Dec 04, 2019 | Nitrite Plus Nitrate (as N) | 2.8 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1099445 | |
| Dec 04, 2019 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1099445 | |
| Dec 04, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1099445 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1099445 | |
| Dec 04, 2019 | Zinc, Total Recoverable | .17 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1099445 | |
| Feb 14, 2019 | Aluminum, Total Recoverable | .027 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1050145 | |
| Feb 14, 2019 | Iron, Total Recoverable | .11 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1050145 | |
| Feb 14, 2019 | Nitrite Plus Nitrate (as N) | .34 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1050145 | |
| Feb 14, 2019 | Oil and Grease | ND 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1050145 | |
| Feb 14, 2019 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1050145 | |
| Feb 14, 2019 | Total Suspended Solids (TSS) | 2.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1050145 | |
| Feb 14, 2019 | Zinc, Total Recoverable | .15 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1050145 | |
| Jan 31, 2019 | Aluminum, Total Recoverable | .2 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1050141 | |
| Jan 31, 2019 | Iron, Total Recoverable | .7 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1050141 | |
| Jan 31, 2019 | Nitrite Plus Nitrate (as N) | .53 | mg/L | Effluent | Qualifying Storm Event | E300.0 | 1050141 | |
| Jan 31, 2019 | Oil and Grease | ND 2.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1050141 |
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 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Jan 23, 2009 – Dec 20, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 1 issued · 0 draft · 1 withdrawn, rescinded or superseded | May 28, 2010 – Dec 20, 2023 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Sep 29, 2011 – Dec 15, 2023 | Oct 21, 2026 | All inspections |
| Annual reports | 8 | certified reports (contents not shown) | 2015 – 2022 | 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 (15 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Dec 20, 2023 | Enforcement actions | 452512 | EPL (Expedited Payment Letter) | Rescinded | R4-2023-0389 |
| Dec 20, 2023 | Violations | 887648 | Effluent | Violation | Report |
| Dec 20, 2023 | Violations | 887649 | Late Report | Violation | Report |
| Dec 15, 2023 | Inspections | 2064036 | NOT | Finalized | No Further Action |
| May 23, 2023 | Annual reports | 1188873 | Annual report 2022 | — | |
| Jul 15, 2022 | Annual reports | 1112214 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1068207 | Annual report 2020 | — | |
| Jul 13, 2020 | Annual reports | 985433 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 952968 | Annual report 2018 | — | |
| Jul 09, 2018 | Annual reports | 938382 | Annual report 2017 | — | |
| Jul 13, 2017 | Annual reports | 877595 | Annual report 2016 | — | |
| Jul 12, 2016 | Annual reports | 839185 | Annual report 2015 | — | |
| Sep 29, 2011 | Inspections | 2012803 | B Type compliance | — | No Further Action |
| May 28, 2010 | Enforcement actions | 403726 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 23, 2009 | Violations | 843385 | 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.