Omega Precision
Terminated WDID 4 19I019474 Santa Fe Springs, 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
- 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
- 64 distinct results, 5 reporting years (2015 to 2019)
- Most recent sample Mar 12, 2020 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 10 violation records · 0 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
- 33.94136, -118.05379
- Precision
- 5 decimal places
- Shared point
- 2 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 13040 Telegraph 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
- Terminated
- Operator
- Omega Precision
- Primary industry (SIC)
- 3728-Aircraft Parts and Auxiliary Equipment, NEC
- Application ID
- 293091
- NOI processed
- May 05, 2005
- Termination effective
- Nov 20, 2020
- Last certified
- Jun 25, 2015
- Facility size
- 16332 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 293091 | Industrial | Terminated | May 05, 2005 | Nov 20, 2020 | Jun 25, 2015 |
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 |
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.
64 distinct measurements across 12 parameters, most recent sample Mar 12, 2020.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2019 | 10 | 5 | 0 | Nov 27, 2019 | Mar 12, 2020 |
| 2018 | 25 | 5 | 0 | Nov 29, 2018 | Feb 14, 2019 |
| 2017 | 5 | 5 | 0 | Jan 09, 2018 | Jan 09, 2018 |
| 2016 | 5 | 5 | 0 | Mar 21, 2017 | Mar 21, 2017 |
| 2015 | 19 | 10 | 0 | Sep 15, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 11 | 8 | Sep 15, 2015 | Mar 12, 2020 | Results |
| pH | SU | 11 | 0 | Sep 15, 2015 | Mar 12, 2020 | Results |
| Total Suspended Solids (TSS) | mg/L | 11 | 1 | Sep 15, 2015 | Mar 12, 2020 | Results |
| Copper, Total Recoverable | mg/L | 9 | 0 | Mar 21, 2017 | Mar 12, 2020 | Results |
| Magnesium, Total Recoverable | mg/L | 9 | 0 | Mar 21, 2017 | Mar 12, 2020 | Results |
| Aluminum, Total | mg/L | 2 | 0 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Chromium (Total) | mg/L | 2 | 2 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Copper, Total | mg/L | 2 | 0 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Iron, Total | mg/L | 2 | 0 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Nitrate, Total (as N) | mg/L | 2 | 1 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 2 | 2 | Sep 15, 2015 | Jan 05, 2016 | Results |
| Magnesium, Total | mg/L | 1 | 0 | Sep 15, 2015 | Sep 15, 2015 | Results |
All results (64 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 12, 2020 | Copper, Total Recoverable | .013 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1109052 | |
| Mar 12, 2020 | Magnesium, Total Recoverable | .26 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1109052 | |
| Mar 12, 2020 | Oil and Grease | 3.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1109052 | |
| Mar 12, 2020 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1109052 | |
| Mar 12, 2020 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1109052 | |
| Nov 27, 2019 | Copper, Total Recoverable | .029 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1097926 | |
| Nov 27, 2019 | Magnesium, Total Recoverable | .47 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1097926 | |
| Nov 27, 2019 | Oil and Grease | 2.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1097926 | |
| Nov 27, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1097926 | |
| Nov 27, 2019 | Total Suspended Solids (TSS) | 8.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1097926 | |
| Feb 14, 2019 | Copper, Total Recoverable | .017 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1052251 | |
| Feb 14, 2019 | Magnesium, Total Recoverable | .27 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1052251 | |
| Feb 14, 2019 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1052251 | |
| Feb 14, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1052251 | |
| Feb 14, 2019 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1052251 | |
| Jan 31, 2019 | Copper, Total Recoverable | .01 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1045105 | |
| Jan 31, 2019 | Magnesium, Total Recoverable | .17 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1045105 | |
| Jan 31, 2019 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1045105 | |
| Jan 31, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1045105 | |
| Jan 31, 2019 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1045105 | |
| Jan 15, 2019 | Copper, Total Recoverable | .0068 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1045103 | |
| Jan 15, 2019 | Magnesium, Total Recoverable | .18 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1045103 | |
| Jan 15, 2019 | Oil and Grease | ND 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1045103 | |
| Jan 15, 2019 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1045103 | |
| Jan 15, 2019 | Total Suspended Solids (TSS) | 4.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1045103 | |
| Dec 06, 2018 | Copper, Total Recoverable | .0038 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1034413 | |
| Dec 06, 2018 | Magnesium, Total Recoverable | .18 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1034413 | |
| Dec 06, 2018 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1034413 | |
| Dec 06, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1034413 | |
| Dec 06, 2018 | Total Suspended Solids (TSS) | 2.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1034413 | |
| Nov 29, 2018 | Copper, Total Recoverable | .0067 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1034412 | |
| Nov 29, 2018 | Magnesium, Total Recoverable | .2 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1034412 | |
| Nov 29, 2018 | Oil and Grease | ND 1.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1034412 | |
| Nov 29, 2018 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1034412 | |
| Nov 29, 2018 | Total Suspended Solids (TSS) | 4.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1034412 | |
| Jan 09, 2018 | Copper, Total Recoverable | .0007 | mg/L | Effluent | Non-Qualifying Storm Event | E200.8 | 992192 | |
| Jan 09, 2018 | Magnesium, Total Recoverable | .11 | mg/L | Effluent | Non-Qualifying Storm Event | E200.7 | 992192 | |
| Jan 09, 2018 | Oil and Grease | 1.5 | mg/L | Effluent | Non-Qualifying Storm Event | E1664A | 992192 | |
| Jan 09, 2018 | pH | 7 | SU | Effluent | Non-Qualifying Storm Event | pH_Paper | 992192 | |
| Jan 09, 2018 | Total Suspended Solids (TSS) | ND .53 | mg/L | Effluent | Non-Qualifying Storm Event | A2540D | 992192 | |
| Mar 21, 2017 | Copper, Total Recoverable | .0012 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 930052 | |
| Mar 21, 2017 | Magnesium, Total Recoverable | .042 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 930052 | |
| Mar 21, 2017 | Oil and Grease | ND 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 930052 | |
| Mar 21, 2017 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Paper | 930052 | |
| Mar 21, 2017 | Total Suspended Solids (TSS) | 1.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 930052 | |
| Jan 05, 2016 | Aluminum, Total | .256 | mg/L | Effluent | Qualifying Storm Event | EPA 200.7 | 889509 | |
| Jan 05, 2016 | Chromium (Total) | < .005 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 889509 | |
| Jan 05, 2016 | Copper, Total | .021 | mg/L | Effluent | Qualifying Storm Event | EPA 200.7 | 889509 | |
| Jan 05, 2016 | Iron, Total | .312 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 889509 | |
| Jan 05, 2016 | Nitrate, Total (as N) | .439 | mg/L | Effluent | Qualifying Storm Event | A4500NOD | 889509 |
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 | 10 | 9 Violation · 0 Potential (preliminary) · 1 Dismissed | Jul 02, 2007 – Jan 01, 2017 | Oct 21, 2026 | All violations |
| Enforcement actions | 0 | 0 issued · 0 draft · 0 withdrawn, rescinded or superseded | — | Oct 21, 2026 | |
| Inspections | 3 | inspections, not findings | Aug 28, 2012 – Feb 21, 2014 | Oct 21, 2026 | All inspections |
| Annual reports | 5 | certified reports (contents not shown) | 2015 – 2019 | 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 (18 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 01, 2020 | Annual reports | 985855 | Annual report 2019 | — | |
| Jul 01, 2019 | Annual reports | 953406 | Annual report 2018 | — | |
| Jul 10, 2018 | Annual reports | 938822 | Annual report 2017 | — | |
| Jul 05, 2017 | Annual reports | 878054 | Annual report 2016 | — | |
| Jan 01, 2017 | Violations | 862596 | Enforcement Action | Violation | Internal Report |
| Jul 14, 2016 | Annual reports | 839538 | Annual report 2015 | — | |
| Feb 27, 2015 | Violations | 856685 | Late Report | Dismissed | Report |
| Feb 21, 2014 | Inspections | 2021427 | Non-compliance Follow-up | — | Additional Info Required |
| Aug 15, 2013 | Inspections | 2020323 | Enforcement Follow-up | — | Additional Info Required |
| Jul 02, 2013 | Violations | 853429 | Late Report | Violation | Report |
| Aug 28, 2012 | Inspections | 2016373 | B Type compliance | — | Additional Info Required |
| Aug 28, 2012 | Violations | 849096 | Deficient BMP Implementation | Violation | Inspection |
| Jul 02, 2012 | Violations | 853428 | Late Report | Violation | Report |
| Jul 02, 2011 | Violations | 848352 | Late Report | Violation | Report |
| Jul 02, 2010 | Violations | 853427 | Late Report | Violation | Report |
| Jul 02, 2009 | Violations | 853426 | Late Report | Violation | Report |
| Jul 02, 2008 | Violations | 841181 | Late Report | Violation | Report |
| Jul 02, 2007 | Violations | 853424 | Late Report | 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.