Heraeus Precious Metals North America LLC
Active WDID 4 19I015954 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
- 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
- 533 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Apr 12, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 9 violation records · 8 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
- 33.88918, -118.04656
- 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
- 15524 carmenita rd, Santa Fe Springs 90670
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Coyote Creek-San Gabriel River HUC12 180701060606
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
- Heraeus Precious Metals North America LLC
- Primary industry (SIC)
- 3341-Secondary Smelting and Refining of Nonferrous Metals
- Application ID
- 191049
- NOI processed
- Jul 18, 2000
- Last certified
- Jul 15, 2026
- Facility size
- 6.71 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 191049 | Industrial | Active | Jul 18, 2000 | — | Jul 15, 2026 |
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
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 | R4 - Coyote Creek and its tributary/ies | Copper, Total | .027 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| R4 - San Gabriel River Metals and Selenium TMDL | R4 - Coyote Creek and its tributary/ies | Lead, Total | .106 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
| R4 - San Gabriel River Metals and Selenium TMDL | R4 - Coyote Creek and its tributary/ies | Zinc, Total | .158 mg/L | NEL instantaneous | FINAL | 2020-07-01 | Y |
3 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.
533 distinct measurements across 8 parameters, most recent sample Apr 12, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 64 | 8 | 0 | Oct 14, 2025 | Apr 12, 2026 |
| 2024 | 32 | 8 | 0 | Feb 07, 2025 | Mar 13, 2025 |
| 2023 | 96 | 8 | 0 | Aug 20, 2023 | Mar 30, 2024 |
| 2022 | 77 | 8 | 0 | Nov 08, 2022 | Mar 29, 2023 |
| 2021 | 16 | 8 | 0 | Mar 28, 2022 | Mar 28, 2022 |
| 2020 | 32 | 8 | 0 | Dec 28, 2020 | Jan 29, 2021 |
| 2019 | 28 | 7 | 0 | Nov 27, 2019 | Mar 12, 2020 |
| 2018 | 21 | 7 | 0 | Oct 13, 2018 | Jan 14, 2019 |
| 2017 | 12 | 6 | 0 | Jan 09, 2018 | Jan 09, 2018 |
| 2016 | 90 | 6 | 0 | Oct 24, 2016 | Feb 17, 2017 |
| 2015 | 65 | 5 | 0 | Sep 15, 2015 | Apr 08, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 76 | 0 | Sep 15, 2015 | Apr 12, 2026 | Results |
| Oil and Grease | mg/L | 75 | 46 | Sep 15, 2015 | Apr 12, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 75 | 31 | Sep 15, 2015 | Apr 12, 2026 | Results |
| Copper, Total | mg/L | 74 | 2 | Sep 15, 2015 | Apr 12, 2026 | Results |
| Lead, Total | mg/L | 74 | 13 | Sep 15, 2015 | Apr 12, 2026 | Results |
| Ammonia, Total (as N) | mg/L | 62 | 0 | Oct 24, 2016 | Apr 12, 2026 | Results |
| Nickel, Total | mg/L | 48 | 2 | Oct 13, 2018 | Apr 12, 2026 | Results |
| Zinc, Total | mg/L | 41 | 2 | Dec 28, 2020 | Apr 12, 2026 | Results |
| Copper, Total | ug/L | 4 | 0 | Mar 07, 2016 | Apr 08, 2016 | Results |
| Lead, Total | ug/L | 4 | 0 | Mar 07, 2016 | Apr 08, 2016 | Results |
pH results (76 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 12, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371675 | |
| Apr 12, 2026 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371675 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367941 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1367941 | |
| Nov 14, 2025 | pH | 6.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1358227 | |
| Nov 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1358227 | |
| Oct 14, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1355091 | |
| Oct 14, 2025 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1355091 | |
| Mar 13, 2025 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326486 | |
| Mar 05, 2025 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326482 | |
| Feb 13, 2025 | pH | 7.46 | SU | Effluent | Qualifying Storm Event | pH_Field | 1321963 | |
| Feb 07, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1321961 | |
| Mar 30, 2024 | pH | 8.57 | SU | Effluent | Qualifying Storm Event | pH_Field | 1285165 | |
| Mar 30, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1285165 | |
| Feb 20, 2024 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1283040 | |
| Feb 20, 2024 | pH | 8.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1283040 | |
| Feb 20, 2024 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1283251 | |
| Feb 20, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1283251 | |
| Feb 20, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1284386 | |
| Jan 03, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1274407 | |
| Dec 30, 2023 | pH | 8.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278952 | |
| Dec 30, 2023 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278952 | |
| Aug 20, 2023 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1267295 | |
| Aug 20, 2023 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1267295 | |
| Mar 29, 2023 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1235494 | |
| Jan 14, 2023 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229825 | |
| Jan 14, 2023 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1229825 | |
| Jan 09, 2023 | pH | 7.05 | SU | Effluent | Qualifying Storm Event | pH_Field | 1230742 | |
| Jan 09, 2023 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1230742 | |
| Dec 11, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1221827 | |
| Dec 11, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1221827 | |
| Nov 08, 2022 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1220030 | |
| Nov 08, 2022 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1220030 | |
| Mar 28, 2022 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1183013 | |
| Mar 28, 2022 | pH | 6.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1183013 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1145204 | |
| Jan 29, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1145204 | |
| Dec 28, 2020 | pH | 7.15 | SU | Effluent | Qualifying Storm Event | 1142021 | ||
| Dec 28, 2020 | pH | 7.36 | SU | Effluent | Qualifying Storm Event | pH_Field | 1142021 | |
| Mar 12, 2020 | pH | 7.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1105345 | |
| Mar 12, 2020 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1105345 | |
| Nov 28, 2019 | pH | 7.88 | SU | Effluent | Qualifying Storm Event | pH_Field | 1097822 | |
| Nov 27, 2019 | pH | 6.87 | SU | Effluent | Qualifying Storm Event | pH_Field | 1097822 | |
| Jan 14, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1050231 | |
| Jan 14, 2019 | pH | 6.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1050231 | |
| Oct 13, 2018 | pH | 6.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1028825 | |
| Jan 09, 2018 | pH | 7.33 | SU | Effluent | Qualifying Storm Event | pH_Field | 993670 | |
| Jan 09, 2018 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 993670 | |
| Feb 17, 2017 | pH | 6.74 | SU | Effluent | Qualifying Storm Event | pH_Field | 929287 | |
| Feb 17, 2017 | pH | 7.11 | SU | Effluent | Qualifying Storm Event | pH_Field | 929287 |
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 | 9 | 7 Violation · 2 Potential (preliminary) · 0 Dismissed | Nov 27, 2001 – Nov 24, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 8 | 8 issued · 0 draft · 0 withdrawn, rescinded or superseded | Nov 27, 2001 – Nov 24, 2025 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Nov 27, 2001 – Jul 18, 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 | 2 | reports, by parameter | 2020-21 – 2023-24 | 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 (33 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2026 | Annual reports | 1337169 | Annual report 2025 | — | |
| Nov 24, 2025 | Enforcement actions | 467713 | ACL (Administrative Civil Liability) | Historical | R4-2025-0234 |
| Nov 24, 2025 | Violations | 902211 | Effluent | Violation | Report |
| Jul 18, 2025 | Inspections | 2068493 | B Type compliance | Performed | No Further Action |
| Jun 16, 2025 | Annual reports | 1296070 | Annual report 2024 | — | |
| Jan 16, 2025 | Water-quality-based corrective action reports | 1317588 | WQBCAR 2023-24 | — | Copper, Total, Zinc, Total |
| Jul 12, 2024 | Annual reports | 1245257 | Annual report 2023 | — | |
| Jul 10, 2024 | Violations | 889303 | Enforcement Action | Potential | Internal Report |
| Jul 09, 2024 | Enforcement actions | 453606 | 13383 Order (Water Code section 13383 order) | Historical | R4-2024-0188 |
| Jun 05, 2024 | Enforcement actions | 453403 | ACL (Administrative Civil Liability) | Historical | R4-2024-0218 |
| Jun 05, 2024 | Violations | 889083 | Effluent | Violation | Report |
| Jul 13, 2023 | Annual reports | 1191358 | Annual report 2022 | — | |
| Feb 06, 2023 | Enforcement actions | 449488 | TSO (Time Schedule Order) | Active | R4-2023-0010-A01 |
| Feb 06, 2023 | Violations | 884558 | Effluent | Potential | Report |
| Jul 13, 2022 | Annual reports | 1114909 | Annual report 2021 | — | |
| Mar 30, 2022 | Enforcement actions | 446403 | ACL (Administrative Civil Liability) | Historical | R4-2022-0044 |
| Mar 30, 2022 | Violations | 881597 | Effluent | Violation | Report |
| Jul 14, 2021 | Annual reports | 1062994 | Annual report 2020 | — | |
| Jul 14, 2021 | Water-quality-based corrective action reports | 1154083 | WQBCAR 2020-21 | — | Copper, Total, Zinc, Total |
| Jul 13, 2020 | Annual reports | 979851 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 956099 | Annual report 2018 | — | |
| Aug 28, 2018 | Annual reports | 941524 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 880912 | Annual report 2016 | — | |
| Jul 12, 2016 | Annual reports | 842749 | Annual report 2015 | — | |
| Aug 20, 2013 | Enforcement actions | 413357 | NTC (Notice to Comply) | Historical |
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.