Asco Metals
Active WDID 4 19I009708 Santa Fe Springs, 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
- Santa Fe Springs, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- S San Gabriel Water Basin (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
- None
- Monitoring results Evidence: facility-reported
- 40 distinct results, 5 reporting years (2017 to 2025)
- Most recent sample Oct 13, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 7 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
- 33.94536, -118.05383
- 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
- 13014 Los Nietos Rd, Santa Fe Springs 90670
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- La Mirada Creek HUC12 180701060602
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
- Asco Metals
- Primary industry (SIC)
- 5093-Scrap and Waste Materials
- Application ID
- 189861
- NOI processed
- Jan 15, 1993
- Last certified
- Jun 03, 2015
- Facility size
- 40000 SqFt
- Impervious area
- 100 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 189861 | Industrial | Active | Jan 15, 1993 | — | Jun 03, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- S San Gabriel Water Basin
- 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.
No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.
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 |
|---|---|---|---|---|---|---|---|
| R4 - San Gabriel River Metals and Selenium TMDL | San Gabriel River Reach 2 and its tributary/ies | Lead, Total | .166 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
1 record. 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.
40 distinct measurements across 8 parameters, most recent sample Oct 13, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 8 | 8 | 0 | Oct 13, 2025 | Oct 13, 2025 |
| 2021 | 5 | 5 | 0 | Dec 14, 2021 | Dec 14, 2021 |
| 2020 | 5 | 5 | 0 | Jan 29, 2021 | Jan 29, 2021 |
| 2019 | 15 | 5 | 0 | Dec 04, 2019 | Apr 06, 2020 |
| 2017 | 7 | 7 | 0 | Jan 09, 2018 | Jan 09, 2018 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Chemical Oxygen Demand (COD) | mg/L | 7 | 7 | Jan 09, 2018 | Oct 13, 2025 | Results |
| Lead, Total | mg/L | 7 | 6 | Jan 09, 2018 | Oct 13, 2025 | Results |
| pH | SU | 7 | 6 | Jan 09, 2018 | Oct 13, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 7 | 5 | Jan 09, 2018 | Oct 13, 2025 | Results |
| Oil and Grease | mg/L | 6 | 5 | Dec 04, 2019 | Oct 13, 2025 | Results |
| Aluminum, Total | mg/L | 2 | 1 | Jan 09, 2018 | Oct 13, 2025 | Results |
| Iron, Total | mg/L | 2 | 1 | Jan 09, 2018 | Oct 13, 2025 | Results |
| Zinc, Total | mg/L | 2 | 1 | Jan 09, 2018 | Oct 13, 2025 | Results |
All results (40 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Oct 13, 2025 | Aluminum, Total | 1.52 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Chemical Oxygen Demand (COD) | < 25 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Iron, Total | 2.18 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Lead, Total | .074 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Oil and Grease | 5 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Total Suspended Solids (TSS) | 55 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Oct 13, 2025 | Zinc, Total | .844 | mg/L | Effluent | Qualifying Storm Event | 1377360 | ||
| Dec 14, 2021 | Chemical Oxygen Demand (COD) | DNQ 240 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1177733 | |
| Dec 14, 2021 | Lead, Total | DNQ .14 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1177733 | |
| Dec 14, 2021 | Oil and Grease | DNQ 2.9 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1177733 | |
| Dec 14, 2021 | pH | DNQ 6.82 | SU | Effluent | Qualifying Storm Event | A4500HB | 1177733 | |
| Dec 14, 2021 | Total Suspended Solids (TSS) | 52 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1177733 | |
| Jan 29, 2021 | Chemical Oxygen Demand (COD) | DNQ 28 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1144190 | |
| Jan 29, 2021 | Lead, Total | DNQ 20 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1144190 | |
| Jan 29, 2021 | Oil and Grease | DNQ 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1144190 | |
| Jan 29, 2021 | pH | DNQ 6.57 | SU | Effluent | Qualifying Storm Event | A4500HB | 1144190 | |
| Jan 29, 2021 | Total Suspended Solids (TSS) | DNQ 17 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1144190 | |
| Apr 06, 2020 | Chemical Oxygen Demand (COD) | DNQ 13 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1123420 | |
| Apr 06, 2020 | Lead, Total | DNQ 9 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123420 | |
| Apr 06, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1123420 | |
| Apr 06, 2020 | pH | DNQ 6.87 | SU | Effluent | Qualifying Storm Event | A4500HB | 1123420 | |
| Apr 06, 2020 | Total Suspended Solids (TSS) | DNQ 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1123420 | |
| Mar 13, 2020 | Chemical Oxygen Demand (COD) | DNQ 21 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1123420 | |
| Mar 13, 2020 | Lead, Total | DNQ 17 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123420 | |
| Mar 13, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1123420 | |
| Mar 13, 2020 | pH | DNQ 6.02 | SU | Effluent | Qualifying Storm Event | A4500HB | 1123420 | |
| Mar 13, 2020 | Total Suspended Solids (TSS) | DNQ 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1123420 | |
| Dec 04, 2019 | Chemical Oxygen Demand (COD) | DNQ 22 | mg/L | Effluent | Qualifying Storm Event | E410.4 | 1123420 | |
| Dec 04, 2019 | Lead, Total | DNQ .019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123420 | |
| Dec 04, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1123420 | |
| Dec 04, 2019 | pH | DNQ 5.65 | SU | Effluent | Qualifying Storm Event | A4500HB | 1123420 | |
| Dec 04, 2019 | Total Suspended Solids (TSS) | DNQ 19 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1123420 | |
| Jan 09, 2018 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123642 | |
| Jan 09, 2018 | Chemical Oxygen Demand (COD) | ND | mg/L | Effluent | Qualifying Storm Event | A5220B | 1123642 | |
| Jan 09, 2018 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123642 | |
| Jan 09, 2018 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123642 | |
| Jan 09, 2018 | pH | ND | SU | Effluent | Qualifying Storm Event | A4500HB | 1123642 | |
| Jan 09, 2018 | Total Suspended Solids (TSS) | ND | mg/L | Effluent | Qualifying Storm Event | A2540D | 1123642 | |
| Jan 09, 2018 | Zinc, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1123642 |
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 | 7 | 7 Violation · 0 Potential (preliminary) · 0 Dismissed | Dec 12, 2001 – Jul 16, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 6 | 6 issued · 0 draft · 0 withdrawn, rescinded or superseded | Feb 11, 2002 – Jul 22, 2026 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Dec 12, 2001 – Jun 06, 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 (26 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Aug 04, 2026 | Annual reports | 1334295 | Annual report 2025 | — | |
| Jul 22, 2026 | Enforcement actions | 470364 | NOV (Notice of Violation) | Active | |
| Jul 16, 2026 | Violations | 904442 | Late Report | Violation | Report |
| Jul 14, 2025 | Annual reports | 1293070 | Annual report 2024 | — | |
| Apr 30, 2025 | Enforcement actions | 455806 | NOV (Notice of Violation) | Active | |
| Apr 30, 2025 | Violations | 891132 | Failure to Notify | Violation | Report |
| Jun 20, 2024 | Annual reports | 1242079 | Annual report 2023 | — | |
| Jul 12, 2023 | Annual reports | 1188022 | Annual report 2022 | — | |
| Jul 14, 2022 | Annual reports | 1111294 | Annual report 2021 | — | |
| May 05, 2022 | Enforcement actions | 446506 | NOV (Notice of Violation) | Active | |
| Jul 30, 2021 | Violations | 881724 | Incomplete/Insufficient SWPPP | Violation | Report |
| May 07, 2021 | Annual reports | 1067240 | Annual report 2020 | — | |
| Jul 17, 2020 | Enforcement actions | 436911 | NOV (Notice of Violation) | Historical | |
| Jul 17, 2020 | Violations | 873323 | Late Report | Violation | Report |
| Jun 18, 2020 | Annual reports | 984405 | Annual report 2019 | — | |
| Jun 21, 2019 | Annual reports | 951913 | Annual report 2018 | — | |
| Jun 22, 2018 | Annual reports | 937324 | Annual report 2017 | — | |
| May 19, 2017 | Annual reports | 876479 | Annual report 2016 | — | |
| Jun 03, 2016 | Annual reports | 840228 | Annual report 2015 | — | |
| Apr 23, 2010 | Enforcement actions | 403604 | SEL (Staff Enforcement Letter) | Historical | |
| Feb 06, 2009 | Violations | 843268 | Deficient BMP Implementation | Violation | Report |
| Jun 06, 2002 | Inspections | 1733906 | Enforcement Follow-up | — | |
| Feb 11, 2002 | Enforcement actions | 240220 | NOV (Notice of Violation) | Historical | UNKNOWN |
| Dec 12, 2001 | Inspections | 1733905 | B Type compliance | — | |
| Dec 12, 2001 | Violations | 199278 | Deficient BMP Implementation | 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.