Rockwell Collins
Active WDID 2 48I016358 Fairfield, Solano County Region 2 · San Francisco Bay
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Fairfield, Solano County
- Region 2 · San Francisco Bay · Location · Statewide map
- Receiving water
- Suisun Marsh (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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 445 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 17, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 1 violation record · 1 enforcement action
- 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
- 38.22569, -121.95179
- 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
- 3530 Branscombe Rd, Fairfield 94533
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- Union Creek-Frontal Suisun Bay Estuaries HUC12 180500010107
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
- Universal Propulsion Company
- Primary industry (SIC)
- 3728-Aircraft Parts and Auxiliary Equipment, NEC
- Secondary SIC
- 3769-Guided Missile Space Vehicle Parts and Auxiliary Equipment, NEC
- Application ID
- 184706
- NOI processed
- Feb 15, 2001
- Last certified
- Jun 29, 2026
- Facility size
- 550 Acres
- Impervious area
- 19 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 184706 | Industrial | Active | Feb 15, 2001 | — | Jun 29, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Suisun Marsh
- 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
1 official waterbody shares 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Suisun Marsh Wetlands CAT2072400019980929145809 | 264 m | listed | 5 |
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.
445 distinct measurements across 10 parameters, most recent sample Feb 17, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 33 | 8 | 0 | Nov 13, 2025 | Feb 17, 2026 |
| 2024 | 43 | 8 | 0 | Nov 22, 2024 | Feb 13, 2025 |
| 2023 | 15 | 5 | 0 | Apr 04, 2024 | Apr 04, 2024 |
| 2022 | 15 | 6 | 0 | Nov 01, 2022 | Nov 08, 2022 |
| 2021 | 38 | 8 | 0 | Oct 21, 2021 | Nov 09, 2021 |
| 2020 | 28 | 8 | 0 | Jan 27, 2021 | Jan 27, 2021 |
| 2019 | 33 | 8 | 0 | Jan 16, 2020 | Mar 24, 2020 |
| 2018 | 56 | 8 | 0 | Feb 13, 2019 | Feb 26, 2019 |
| 2017 | 71 | 8 | 0 | Jan 08, 2018 | Apr 06, 2018 |
| 2016 | 94 | 8 | 0 | Oct 14, 2016 | Apr 07, 2017 |
| 2015 | 19 | 4 | 0 | Jan 29, 2016 | Mar 04, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 84 | 65 | Jan 29, 2016 | Feb 17, 2026 | Results |
| pH | SU | 84 | 0 | Jan 29, 2016 | Feb 17, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 82 | 0 | Jan 29, 2016 | Feb 17, 2026 | Results |
| Lead, Total | mg/L | 79 | 25 | Oct 14, 2016 | Feb 17, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 77 | 4 | Oct 14, 2016 | Feb 17, 2026 | Results |
| Aluminum, Total | mg/L | 11 | 0 | Feb 17, 2017 | Nov 13, 2025 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 11 | 4 | Feb 17, 2017 | Nov 13, 2025 | Results |
| Copper, Total | mg/L | 11 | 1 | Feb 17, 2017 | Nov 13, 2025 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 4 | 4 | Mar 04, 2016 | Mar 04, 2016 | Results |
| Nitrate, Total (as N) | mg/L | 2 | 0 | Nov 01, 2022 | Nov 01, 2022 | Results |
All results (445 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 17, 2026 | Lead, Total | .00631 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374970 | |
| Feb 17, 2026 | Lead, Total | .00565 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374970 | |
| Feb 17, 2026 | Nitrite Plus Nitrate (as N) | .69 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374970 | |
| Feb 17, 2026 | Nitrite Plus Nitrate (as N) | .28 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374970 | |
| Feb 17, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374970 | |
| Feb 17, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374970 | |
| Feb 17, 2026 | pH | 8.46 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374970 | |
| Feb 17, 2026 | pH | 8.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374970 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | 73 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374970 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | 79 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374970 | |
| Nov 13, 2025 | Aluminum, Total | 15 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Chemical Oxygen Demand (COD) | 130 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1374969 | |
| Nov 13, 2025 | Copper, Total | .0156 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Lead, Total | .0321 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Lead, Total | .113 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Lead, Total | .0124 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Lead, Total | .00716 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374969 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | 7.3 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374969 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | 4.2 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374969 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | 1.2 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374969 | |
| Nov 13, 2025 | Nitrite Plus Nitrate (as N) | 1.5 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1374969 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374969 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374969 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374969 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374969 | |
| Nov 13, 2025 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374969 | |
| Nov 13, 2025 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374969 | |
| Nov 13, 2025 | pH | 9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374969 | |
| Nov 13, 2025 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374969 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 530 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374969 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 2300 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374969 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 660 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374969 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 230 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374969 | |
| Feb 13, 2025 | Aluminum, Total | 30 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Chemical Oxygen Demand (COD) | 120 | mg/L | Effluent | Qualifying Storm Event | A5520D | 1332206 | |
| Feb 13, 2025 | Copper, Total | .0403 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Lead, Total | .0935 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Lead, Total | .0673 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Lead, Total | .0219 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Lead, Total | .01 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Lead, Total | .00431 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332206 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | .37 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1332206 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | 3.4 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1332206 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | .39 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1332206 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | .37 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1332206 | |
| Feb 13, 2025 | Nitrite Plus Nitrate (as N) | 1.2 | mg/L | Effluent | Qualifying Storm Event | A4500F | 1332206 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332206 | |
| Feb 13, 2025 | Oil and Grease | 2.6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332206 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332206 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332206 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Jan 01, 2023 – Jan 01, 2023 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jan 12, 2023 – Jan 12, 2023 | Oct 21, 2026 | All actions |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| 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 (13 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1337032 | Annual report 2025 | — | |
| Jul 07, 2025 | Annual reports | 1295922 | Annual report 2024 | — | |
| Jul 12, 2024 | Annual reports | 1245098 | Annual report 2023 | — | |
| Jul 26, 2023 | Annual reports | 1191186 | Annual report 2022 | — | |
| Jan 12, 2023 | Enforcement actions | 449392 | SEL (Staff Enforcement Letter) | Active | |
| Jan 01, 2023 | Violations | 884449 | Late Report | Violation | Report |
| Jul 08, 2022 | Annual reports | 1114726 | Annual report 2021 | — | |
| Jun 16, 2021 | Annual reports | 1070825 | Annual report 2020 | — | |
| Jun 30, 2020 | Annual reports | 988247 | Annual report 2019 | — | |
| Jul 15, 2019 | Annual reports | 955882 | Annual report 2018 | — | |
| Jul 03, 2018 | Annual reports | 941305 | Annual report 2017 | — | |
| Jul 12, 2017 | Annual reports | 880682 | Annual report 2016 | — | |
| Jul 14, 2016 | Annual reports | 844066 | 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.