Ducommun Aero Structures Inc
Active WDID 8 30I002947 Orange, Orange County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Orange, Orange County
- Region 8 · Santa Ana · Location · Statewide map
- 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
- 2 waterbodies; 0 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 452 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 16, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 3 inspections · 5 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
- 33.81888, -117.86204
- 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
- 1885 N Batavia St, Orange 92865
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Walnut Canyon-Santa Ana River HUC12 180702031002
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
- DUCOMMUN AEROSTRUCTURES
- Primary industry (SIC)
- 3728-Aircraft Parts and Auxiliary Equipment, NEC
- Secondary SIC
- 3499-Fabricated Metal Products, NEC
- Application ID
- 208326
- NOI processed
- Apr 02, 1992
- Last certified
- Jul 14, 2017
- Facility size
- 4.4 Acres
- Impervious area
- 97 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 208326 | Industrial | Active | Apr 02, 1992 | — | Jul 14, 2017 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Ana River Bed
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Collins Channel CAR8011100020251002056453 | 512 m | not listed | 0 |
| Santa Ana River, Reach 2 CAR8011300019991014130438 | 632 m | not listed | 0 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
SMARTS TMDL records Evidence: SMARTS-reported
No TMDL records for this facility in the SMARTS TMDL export.
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.
452 distinct measurements across 9 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 | 54 | 9 | 0 | Nov 14, 2025 | Feb 16, 2026 |
| 2024 | 36 | 9 | 0 | Feb 12, 2025 | Mar 31, 2025 |
| 2023 | 36 | 9 | 0 | Mar 06, 2024 | Mar 18, 2024 |
| 2022 | 80 | 8 | 0 | Nov 08, 2022 | Mar 21, 2023 |
| 2021 | 32 | 8 | 0 | Oct 25, 2021 | Dec 14, 2021 |
| 2020 | 46 | 9 | 0 | Dec 28, 2020 | Mar 03, 2021 |
| 2019 | 70 | 7 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 42 | 7 | 0 | Dec 05, 2018 | Feb 14, 2019 |
| 2017 | 28 | 7 | 0 | Jan 08, 2018 | Mar 08, 2018 |
| 2016 | 14 | 7 | 0 | Feb 27, 2017 | Feb 27, 2017 |
| 2015 | 14 | 7 | 0 | Jan 05, 2016 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 58 | 26 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Iron, Total | mg/L | 58 | 27 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 58 | 7 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Oil and Grease | mg/L | 58 | 48 | Jan 05, 2016 | Feb 16, 2026 | Results |
| pH | SU | 58 | 0 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 58 | 16 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Zinc, Total | mg/L | 56 | 4 | Jan 05, 2016 | Feb 16, 2026 | Results |
| Copper, Total | mg/L | 33 | 14 | Dec 28, 2020 | Feb 16, 2026 | Results |
| Copper, Dissolved | mg/L | 15 | 9 | Dec 28, 2020 | Feb 16, 2026 | Results |
All results (452 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 16, 2026 | Aluminum, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Aluminum, Total | .225 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Copper, Dissolved | ND | mg/L | Effluent | Qualifying Storm Event | 1369494 | ||
| Feb 16, 2026 | Copper, Dissolved | ND | mg/L | Effluent | Qualifying Storm Event | 1369494 | ||
| Feb 16, 2026 | Copper, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Copper, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Iron, Total | .074 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Iron, Total | .089 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | .25 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1369494 | |
| Feb 16, 2026 | Nitrite Plus Nitrate (as N) | .484 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1369494 | |
| Feb 16, 2026 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369494 | |
| Feb 16, 2026 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369494 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1369494 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1369494 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369494 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369494 | |
| Feb 16, 2026 | Zinc, Total | .135 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Feb 16, 2026 | Zinc, Total | .385 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1369494 | |
| Dec 24, 2025 | Aluminum, Total | < .2 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Aluminum, Total | .34 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Copper, Dissolved | < .1 | mg/L | Effluent | Qualifying Storm Event | 1362970 | ||
| Dec 24, 2025 | Copper, Dissolved | < .1 | mg/L | Effluent | Qualifying Storm Event | 1362970 | ||
| Dec 24, 2025 | Copper, Total | < .1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Copper, Total | < .1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Iron, Total | .14 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Iron, Total | < .1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1362970 | |
| Dec 24, 2025 | Nitrite Plus Nitrate (as N) | .084 | mg/L | Effluent | Qualifying Storm Event | A4500NE | 1362970 | |
| Dec 24, 2025 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1362970 | |
| Dec 24, 2025 | Oil and Grease | < 5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1362970 | |
| Dec 24, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1362970 | |
| Dec 24, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1362970 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | < 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362970 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | < 4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362970 | |
| Dec 24, 2025 | Zinc, Total | .27 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Dec 24, 2025 | Zinc, Total | .22 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1362970 | |
| Nov 14, 2025 | Aluminum, Total | .08 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Aluminum, Total | .19 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Copper, Dissolved | .02 | mg/L | Effluent | Qualifying Storm Event | 1359743 | ||
| Nov 14, 2025 | Copper, Dissolved | .02 | mg/L | Effluent | Qualifying Storm Event | 1359743 | ||
| Nov 14, 2025 | Copper, Total | .02 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Copper, Total | .02 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Iron, Total | .07 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Iron, Total | .07 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1359743 | |
| Nov 14, 2025 | Nitrite Plus Nitrate (as N) | .91 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1359743 | |
| Nov 14, 2025 | Nitrite Plus Nitrate (as N) | .47 | mg/L | Effluent | Qualifying Storm Event | E353.2 | 1359743 | |
| Nov 14, 2025 | Oil and Grease | 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1359743 | |
| Nov 14, 2025 | Oil and Grease | < 2.1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1359743 | |
| Nov 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359743 | |
| Nov 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1359743 |
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 | 5 | 4 Violation · 0 Potential (preliminary) · 1 Dismissed | Apr 04, 2001 – Jan 31, 2018 | Oct 21, 2026 | All violations |
| Enforcement actions | 6 | 5 issued · 0 draft · 1 withdrawn, rescinded or superseded | Apr 09, 2001 – Jan 31, 2018 | Oct 21, 2026 | All actions |
| Inspections | 3 | inspections, not findings | Apr 05, 2001 – May 20, 2026 | 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 (25 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 26, 2026 | Annual reports | 1335176 | Annual report 2025 | — | |
| May 20, 2026 | Inspections | 2071779 | B Type compliance | Finalized | No Further Action |
| Jun 23, 2025 | Annual reports | 1293979 | Annual report 2024 | — | |
| May 31, 2024 | Annual reports | 1243057 | Annual report 2023 | — | |
| Dec 30, 2023 | Annual reports | 1189051 | Annual report 2022 | — | |
| Jul 05, 2022 | Annual reports | 1112410 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1068414 | Annual report 2020 | — | |
| Jun 19, 2020 | Annual reports | 985652 | Annual report 2019 | — | |
| Jun 27, 2019 | Annual reports | 953194 | Annual report 2018 | — | |
| Nov 06, 2018 | Inspections | 2040311 | Complaint | — | No Further Action |
| Jul 13, 2018 | Annual reports | 938610 | Annual report 2017 | — | |
| Jan 31, 2018 | Enforcement actions | 428554 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Violations | 865638 | Late Report | Violation | Report |
| Jul 24, 2017 | Annual reports | 877834 | Annual report 2016 | — | |
| Mar 28, 2017 | Enforcement actions | 425831 | SEL (Staff Enforcement Letter) | Active | |
| Feb 28, 2017 | Enforcement actions | 425698 | SEL (Staff Enforcement Letter) | Active | |
| Jan 02, 2017 | Violations | 862648 | Late Report | Violation | Report |
| Jul 14, 2016 | Annual reports | 844804 | Annual report 2015 | — | |
| Jan 15, 2015 | Enforcement actions | 418197 | SEL (Staff Enforcement Letter) | Withdrawn | |
| Jan 15, 2015 | Violations | 856249 | Deficient Report | Dismissed | Report |
| Sep 27, 2002 | Enforcement actions | 247106 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 01, 2002 | Violations | 213627 | Deficient Report | Violation | Report |
| Apr 09, 2001 | Enforcement actions | 247808 | SEL (Staff Enforcement Letter) | Historical | UNKNOWN |
| Apr 05, 2001 | Inspections | 2002617 | B Type compliance | — | Additional Info Required |
| Apr 04, 2001 | Violations | 216072 | 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.