Schneider National Carriers Inc
Active WDID 4 19I023306 El Monte, 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
- El Monte, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Rio Hondo Reach 3 (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
- 5 waterbodies; 3 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 97 distinct results, 9 reporting years (2016 to 2025)
- Most recent sample Nov 21, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 1 violation record · 1 enforcement action
- 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
- 34.03028, -118.06
- Precision
- 2 decimal places low precision
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 329 North Durfee Ave, El Monte 91733
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Alhambra Wash-Rio Hondo HUC12 180701050303
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
- Schneider National Inc
- Primary industry (SIC)
- 4231-Terminal and Joint Terminal Maintenance Facilities for Motor Freight Transportation
- Secondary SIC
- 4213-Trucking, Except Local
- Application ID
- 419318
- NOI processed
- Aug 25, 2011
- Last certified
- Jul 10, 2019
- Facility size
- 8.67 Acres
- Impervious area
- 50 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 419318 | Industrial | Active | Aug 25, 2011 | — | Jul 10, 2019 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Rio Hondo Reach 3
- Discharges directly / indirectly
- Y / N (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
1 official waterbody shares 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 |
|---|---|---|---|
| Legg Lake CAL4053100019980917155807 | 218 m | listed | 8 |
| Zone Ditch 1 (LA River Watershed) CAR4053100020110406151505 | 220 m | not listed | 0 |
| North Lake (Whittier Narrows) CAL4123100020210715072780 | 753 m | not listed | 0 |
| San Gabriel River Reach 3 (Whittier Narrows to Ramona) CAR4053100019980917153706 | 823 m | listed | 2 |
| Rio Hondo Reach 3 (above Spreading Grounds) CAR4053100020110601150056 | 845 m | listed | 5 |
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 | Cadmium, Total | .0031 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Copper, Total | .06749 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles River Metals TMDL | Los Angeles River and Los Angeles River Tributaries | Lead, Total | .094 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| 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 |
4 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.
97 distinct measurements across 7 parameters, most recent sample Nov 21, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 7 | 7 | 0 | Nov 21, 2025 | Nov 21, 2025 |
| 2024 | 14 | 7 | 0 | Feb 13, 2025 | Feb 13, 2025 |
| 2023 | 7 | 7 | 0 | Jan 25, 2024 | Jan 25, 2024 |
| 2022 | 28 | 7 | 0 | Nov 08, 2022 | Jan 16, 2023 |
| 2021 | 21 | 7 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 9 | 7 | 0 | Jan 29, 2021 | Mar 15, 2021 |
| 2018 | 3 | 3 | 0 | Jan 14, 2019 | Jan 14, 2019 |
| 2017 | 3 | 3 | 0 | Jan 08, 2018 | Jan 08, 2018 |
| 2016 | 5 | 3 | 0 | Dec 15, 2016 | Feb 08, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 17 | 11 | Dec 15, 2016 | Nov 21, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 17 | 1 | Dec 15, 2016 | Nov 21, 2025 | Results |
| pH | SU | 15 | 0 | Feb 08, 2017 | Nov 21, 2025 | Results |
| Cadmium, Total | mg/L | 12 | 11 | Mar 15, 2021 | Nov 21, 2025 | Results |
| Copper, Total | mg/L | 12 | 0 | Mar 15, 2021 | Nov 21, 2025 | Results |
| Lead, Total | mg/L | 12 | 4 | Mar 15, 2021 | Nov 21, 2025 | Results |
| Zinc, Total | mg/L | 12 | 0 | Mar 15, 2021 | Nov 21, 2025 | Results |
All results (97 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Nov 21, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1363271 | |
| Nov 21, 2025 | Copper, Total | .0111 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1363271 | |
| Nov 21, 2025 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1363271 | |
| Nov 21, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1363271 | |
| Nov 21, 2025 | pH | 6.7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1363271 | |
| Nov 21, 2025 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1363271 | |
| Nov 21, 2025 | Zinc, Total | .256 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1363271 | |
| Feb 13, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322748 | |
| Feb 13, 2025 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331960 | |
| Feb 13, 2025 | Copper, Total | .00479 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322748 | |
| Feb 13, 2025 | Copper, Total | .00479 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331960 | |
| Feb 13, 2025 | Lead, Total | .00243 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322748 | |
| Feb 13, 2025 | Lead, Total | .00243 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331960 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1322748 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1331960 | |
| Feb 13, 2025 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1322748 | |
| Feb 13, 2025 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1331960 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 22.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1322748 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 22.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1331960 | |
| Feb 13, 2025 | Zinc, Total | .0997 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1322748 | |
| Feb 13, 2025 | Zinc, Total | .0997 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1331960 | |
| Jan 25, 2024 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1282909 | |
| Jan 25, 2024 | Copper, Total | .0054 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1282909 | |
| Jan 25, 2024 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1282909 | |
| Jan 25, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1282909 | |
| Jan 25, 2024 | pH | 6.48 | SU | Effluent | Qualifying Storm Event | A4500HB | 1282909 | |
| Jan 25, 2024 | Total Suspended Solids (TSS) | 2.92 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1282909 | |
| Jan 25, 2024 | Zinc, Total | .156 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1282909 | |
| Jan 16, 2023 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222570 | |
| Jan 16, 2023 | Copper, Total | .00389 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222570 | |
| Jan 16, 2023 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222570 | |
| Jan 16, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1222570 | |
| Jan 16, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1222570 | |
| Jan 16, 2023 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1222570 | |
| Jan 16, 2023 | Zinc, Total | .0723 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222570 | |
| Dec 12, 2022 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1269504 | |
| Dec 12, 2022 | Copper, Total | .00256 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1269504 | |
| Dec 12, 2022 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1269504 | |
| Dec 12, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1269504 | |
| Dec 12, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1269504 | |
| Dec 12, 2022 | Total Suspended Solids (TSS) | 7.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1269504 | |
| Dec 12, 2022 | Zinc, Total | .0346 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1269504 | |
| Nov 08, 2022 | Cadmium, Total | > .001 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1217316 | |
| Nov 08, 2022 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222574 | |
| Nov 08, 2022 | Copper, Total | .00739 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1217316 | |
| Nov 08, 2022 | Copper, Total | .00739 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222574 | |
| Nov 08, 2022 | Lead, Total | .0048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1217316 | |
| Nov 08, 2022 | Lead, Total | .0048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1222574 | |
| Nov 08, 2022 | Oil and Grease | > 6.06 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1217316 | |
| Nov 08, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1222574 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Feb 07, 2024 – Feb 07, 2024 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Feb 07, 2024 – Feb 07, 2024 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Dec 09, 2025 – Dec 09, 2025 | 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 | 1 | reports, by parameter | 2021-22 – 2021-22 | Oct 21, 2026 | All reports |
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 |
|---|---|---|---|---|---|
| Jul 09, 2026 | Annual reports | 1337898 | Annual report 2025 | — | |
| Dec 09, 2025 | Inspections | 2069697 | B Type compliance | Performed | Additional Info Required |
| Jun 17, 2025 | Annual reports | 1296835 | Annual report 2024 | — | |
| Jul 11, 2024 | Annual reports | 1246063 | Annual report 2023 | — | |
| Feb 07, 2024 | Enforcement actions | 452933 | ACL (Administrative Civil Liability) | Historical | R4-2023-0395 |
| Feb 07, 2024 | Violations | 888503 | Effluent | Violation | Report |
| Feb 06, 2024 | Water-quality-based corrective action reports | 1274309 | WQBCAR 2021-22 | — | Zinc, Total |
| Jul 03, 2023 | Annual reports | 1192199 | Annual report 2022 | — | |
| Jul 07, 2022 | Annual reports | 1115844 | Annual report 2021 | — | |
| Jun 30, 2021 | Annual reports | 1063969 | Annual report 2020 | — | |
| Jul 06, 2020 | Annual reports | 980910 | Annual report 2019 | — | |
| Jul 10, 2019 | Annual reports | 957194 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 942627 | Annual report 2017 | — | |
| Jul 11, 2017 | Annual reports | 882106 | Annual report 2016 | — | |
| Jun 14, 2016 | Annual reports | 842116 | Annual report 2015 | — |
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.