Sun Chemical
Active WDID 4 19I018246 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
- Coyote Creek & San Gabriel River (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
- 125 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 16, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 7 violation records · 7 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
- 33.94044, -118.05604
- 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
- 12963 Park, 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
- Sun Chemical
- Primary industry (SIC)
- 2893-Printing Ink
- Application ID
- 191562
- NOI processed
- Jul 08, 2003
- Last certified
- Mar 24, 2015
- Facility size
- 76000 SqFt
- Impervious area
- 0 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 191562 | Industrial | Active | Jul 08, 2003 | — | Mar 24, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Coyote Creek & San Gabriel River
- Discharges directly / indirectly
- Y / N (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 | 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 | San Gabriel River Reach 2 and its tributary/ies | Lead, Total | .166 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 |
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.
125 distinct measurements across 7 parameters, most recent sample Feb 16, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 7 | 7 | 0 | Feb 16, 2026 | Feb 16, 2026 |
| 2024 | 6 | 6 | 0 | Mar 06, 2025 | Mar 06, 2025 |
| 2023 | 10 | 5 | 0 | Jan 22, 2024 | Feb 01, 2024 |
| 2022 | 20 | 5 | 0 | Nov 08, 2022 | Feb 27, 2023 |
| 2021 | 15 | 5 | 0 | Dec 14, 2021 | Mar 28, 2022 |
| 2020 | 4 | 4 | 0 | Jan 29, 2021 | Jan 29, 2021 |
| 2019 | 12 | 4 | 0 | Dec 04, 2019 | Apr 06, 2020 |
| 2018 | 16 | 4 | 0 | Dec 06, 2018 | Feb 14, 2019 |
| 2017 | 10 | 5 | 0 | Mar 02, 2018 | Mar 21, 2018 |
| 2016 | 15 | 5 | 0 | Dec 21, 2016 | Feb 17, 2017 |
| 2015 | 10 | 5 | 0 | Jan 06, 2016 | Mar 11, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 26 | 9 | Jan 06, 2016 | Feb 16, 2026 | Results |
| pH | SU | 26 | 0 | Jan 06, 2016 | Feb 16, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 26 | 4 | Jan 06, 2016 | Feb 16, 2026 | Results |
| Zinc, Total | mg/L | 26 | 0 | Jan 06, 2016 | Feb 16, 2026 | Results |
| Lead, Total | mg/L | 11 | 0 | Dec 14, 2021 | Feb 16, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 8 | 0 | Jan 06, 2016 | Feb 16, 2026 | Results |
| Copper, Total | mg/L | 2 | 0 | Mar 06, 2025 | Feb 16, 2026 | Results |
pH results (26 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 16, 2026 | pH | 5.83 | SU | Effluent | Qualifying Storm Event | A4500HB | 1368732 | |
| Mar 06, 2025 | pH | 6.95 | SU | Effluent | Qualifying Storm Event | A4500HB | 1331778 | |
| Feb 01, 2024 | pH | 6.16 | SU | Effluent | Qualifying Storm Event | A4500HB | 1290405 | |
| Jan 22, 2024 | pH | 7.13 | SU | Effluent | Qualifying Storm Event | A4500HB | 1290405 | |
| Feb 27, 2023 | pH | 6.74 | SU | Effluent | Qualifying Storm Event | A4500HB | 1250669 | |
| Jan 10, 2023 | pH | 6.88 | SU | Effluent | Qualifying Storm Event | A4500HB | 1250669 | |
| Jan 05, 2023 | pH | 6.63 | SU | Effluent | Qualifying Storm Event | A4500HB | 1250669 | |
| Nov 08, 2022 | pH | 7.03 | SU | Effluent | Qualifying Storm Event | A4500HB | 1250669 | |
| Mar 28, 2022 | pH | 6.78 | SU | Effluent | Qualifying Storm Event | A4500HB | 1199129 | |
| Dec 29, 2021 | pH | 8.14 | SU | Effluent | Qualifying Storm Event | A4500HB | 1199129 | |
| Dec 14, 2021 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1199129 | |
| Jan 29, 2021 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1153837 | |
| Apr 06, 2020 | pH | 7.33 | SU | Effluent | Qualifying Storm Event | A4500HB | 1125634 | |
| Mar 12, 2020 | pH | 7.34 | SU | Effluent | Qualifying Storm Event | A4500HB | 1125634 | |
| Dec 04, 2019 | pH | 6.66 | SU | Effluent | Qualifying Storm Event | A4500HB | 1125634 | |
| Feb 14, 2019 | pH | 6.12 | SU | Effluent | Qualifying Storm Event | A4500HB | 1076028 | |
| Jan 31, 2019 | pH | 6.68 | SU | Effluent | Qualifying Storm Event | A4500HB | 1076028 | |
| Jan 14, 2019 | pH | 6.86 | SU | Effluent | Qualifying Storm Event | A4500HB | 1076028 | |
| Dec 06, 2018 | pH | 6.39 | SU | Effluent | Qualifying Storm Event | A4500HB | 1076028 | |
| Mar 21, 2018 | pH | 7.18 | SU | Effluent | Qualifying Storm Event | A4500HB | 1010078 | |
| Mar 02, 2018 | pH | 7.28 | SU | Effluent | Qualifying Storm Event | A4500HB | 1010078 | |
| Feb 17, 2017 | pH | 6.69 | SU | Effluent | Qualifying Storm Event | A4500HB | 948833 | |
| Jan 12, 2017 | pH | 6.85 | SU | Effluent | Qualifying Storm Event | A4500HB | 948833 | |
| Dec 21, 2016 | pH | 7.31 | SU | Effluent | Qualifying Storm Event | A4500HB | 948833 | |
| Mar 11, 2016 | pH | 7.11 | SU | Effluent | Qualifying Storm Event | A4500HB | 931257 | |
| Jan 06, 2016 | pH | 7.22 | SU | Effluent | Qualifying Storm Event | A4500HB | 931257 |
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 | Oct 31, 2008 – Sep 21, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 7 | 6 issued · 0 draft · 1 withdrawn, rescinded or superseded | Aug 23, 2010 – Sep 21, 2026 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Mar 13, 2023 – Mar 13, 2023 | 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 (27 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Sep 21, 2026 | Enforcement actions | 473353 | EPL (Expedited Payment Letter) | Active | R4-2026-0275 |
| Sep 21, 2026 | Violations | 907292 | Late Report | Violation | Report |
| Jul 11, 2026 | Annual reports | 1336863 | Annual report 2025 | — | |
| May 19, 2026 | Enforcement actions | 469939 | ACL (Administrative Civil Liability) | Historical | R4-2026-0061 |
| May 19, 2026 | Violations | 904014 | Late Report | Violation | Report |
| Jul 14, 2025 | Annual reports | 1295750 | Annual report 2024 | — | |
| Jun 04, 2025 | Violations | 891420 | Late Report | Violation | Report |
| May 29, 2025 | Enforcement actions | 456239 | EPL (Expedited Payment Letter) | Historical | R4-2025-0054 |
| Aug 30, 2024 | Water-quality-based corrective action reports | 1302503 | WQBCAR 2021-22 | — | Zinc, Total |
| Jul 15, 2024 | Annual reports | 1244916 | Annual report 2023 | — | |
| Jul 14, 2023 | Annual reports | 1190998 | Annual report 2022 | — | |
| Mar 13, 2023 | Inspections | 2059549 | B Type compliance | Finalized | No Further Action |
| Jul 14, 2022 | Annual reports | 1114519 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1070613 | Annual report 2020 | — | |
| May 21, 2021 | Enforcement actions | 440818 | NOV (Notice of Violation) | Historical | |
| May 21, 2021 | Violations | 877040 | Incomplete/Insufficient SWPPP | Violation | Report |
| Aug 14, 2020 | Enforcement actions | 437222 | NOV (Notice of Violation) | Withdrawn | |
| Jul 15, 2020 | Annual reports | 988020 | Annual report 2019 | — | |
| Mar 12, 2020 | Violations | 873663 | Deficient Report | Violation | Inspection |
| Jan 01, 2020 | Enforcement actions | 436286 | NOV (Notice of Violation) | Historical | |
| Jan 01, 2020 | Violations | 872692 | Late Report | Violation | Report |
| Jul 16, 2019 | Annual reports | 955648 | Annual report 2018 | — | |
| Jul 13, 2018 | Annual reports | 941070 | Annual report 2017 | — | |
| Jul 13, 2017 | Annual reports | 880435 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 847681 | 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.