Southwestern Wire Inc
Active WDID 5S34I021305 North Highlands, Sacramento County Region 5S · Central Valley (Sacramento)
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- North Highlands, Sacramento County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Magpie Creek (as reported by the facility)
- Evidence: identification corroborated Magpie Creek Details
- Identified receiving water on the 2026 303(d) list
- Not on the 2026 303(d) list Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 3 waterbodies; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 471 distinct results, 10 reporting years (2015 to 2025)
- Most recent sample Apr 21, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 5 violation records · 3 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
- 38.65017, -121.39433
- 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
- 4318 Dudley Blvd 475E, North Highlands 95652
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Lower Steelhead Creek HUC12 180201110303
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
- Southwestern Wire Inc
- Primary industry (SIC)
- 3496-Miscellaneous Fabricated Wire Products
- Application ID
- 336749
- NOI processed
- Nov 28, 2007
- Last certified
- Jun 23, 2015
- Facility size
- 95647 SqFt
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 336749 | Industrial | Active | Nov 28, 2007 | — | Jun 23, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Magpie Creek
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: identification corroborated Magpie Creek CAR5192100020110819170251
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 408 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
Magpie Creek is not on the 2026 303(d) list.
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only.. A listing describes the waterbody, not this facility. Waterbody profile.
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 |
|---|---|---|---|
| Magpie Creek CAR5192100020110819170251 | 408 m | not listed | 0 |
| Arcade Creek CAR5192100019980813113546 | 996 m | listed | 7 |
| Arcade Creek (Sacramento County) CAR5192100020201209037596 | 996 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.
471 distinct measurements across 7 parameters, most recent sample Apr 21, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 28 | 7 | 0 | Nov 13, 2025 | Apr 21, 2026 |
| 2024 | 28 | 7 | 0 | Dec 12, 2024 | Feb 04, 2025 |
| 2023 | 28 | 7 | 0 | Nov 06, 2023 | Mar 30, 2024 |
| 2022 | 29 | 7 | 0 | Nov 01, 2022 | Mar 10, 2023 |
| 2021 | 28 | 7 | 0 | Nov 09, 2021 | Mar 28, 2022 |
| 2020 | 35 | 7 | 0 | Dec 13, 2020 | Mar 10, 2021 |
| 2019 | 22 | 7 | 0 | Dec 02, 2019 | Mar 16, 2020 |
| 2018 | 28 | 7 | 0 | Nov 29, 2018 | Feb 02, 2019 |
| 2017 | 77 | 7 | 0 | Nov 16, 2017 | Mar 21, 2018 |
| 2015 | 168 | 7 | 0 | Nov 02, 2015 | Mar 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Zinc, Total | mg/L | 69 | 0 | Nov 02, 2015 | Apr 21, 2026 | Results |
| Aluminum, Total | mg/L | 67 | 7 | Nov 02, 2015 | Apr 21, 2026 | Results |
| Iron, Total | mg/L | 67 | 8 | Nov 02, 2015 | Apr 21, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 67 | 19 | Nov 02, 2015 | Apr 21, 2026 | Results |
| Oil and Grease | mg/L | 67 | 57 | Nov 02, 2015 | Apr 21, 2026 | Results |
| pH | SU | 67 | 0 | Nov 02, 2015 | Apr 21, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 67 | 1 | Nov 02, 2015 | Apr 21, 2026 | Results |
Iron, Total results (67 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 21, 2026 | Iron, Total | .187 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1372430 | |
| Feb 16, 2026 | Iron, Total | .285 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1367666 | |
| Dec 22, 2025 | Iron, Total | 2.02 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1363195 | |
| Nov 13, 2025 | Iron, Total | .125 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1357975 | |
| Feb 04, 2025 | Iron, Total | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1321141 | |
| Jan 31, 2025 | Iron, Total | .47 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1321120 | |
| Dec 16, 2024 | Iron, Total | .73 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1318004 | |
| Dec 12, 2024 | Iron, Total | .46 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1318003 | |
| Mar 30, 2024 | Iron, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1284908 | |
| Mar 01, 2024 | Iron, Total | .77 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1282596 | |
| Nov 18, 2023 | Iron, Total | .11 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1268472 | |
| Nov 06, 2023 | Iron, Total | .58 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1268471 | |
| Mar 10, 2023 | Iron, Total | .1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1231675 | |
| Feb 24, 2023 | Iron, Total | .18 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1230529 | |
| Dec 01, 2022 | Iron, Total | .28 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1218630 | |
| Nov 01, 2022 | Iron, Total | 1.36 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1217311 | |
| Mar 28, 2022 | Iron, Total | 1.16 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1180011 | |
| Mar 15, 2022 | Iron, Total | .814 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1179815 | |
| Dec 09, 2021 | Iron, Total | .66 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1172089 | |
| Nov 09, 2021 | Iron, Total | DNQ .305 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1171010 | |
| Mar 10, 2021 | Iron, Total | DNQ .361 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1145880 | |
| Feb 02, 2021 | Iron, Total | DNQ .382 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1142312 | |
| Jan 27, 2021 | Iron, Total | DNQ .31 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1140649 | |
| Dec 28, 2020 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1140504 | |
| Dec 13, 2020 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1138395 | |
| Mar 16, 2020 | Iron, Total | .832 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1102946 | |
| Jan 16, 2020 | Iron, Total | .676 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1100938 | |
| Dec 02, 2019 | Iron, Total | .403 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1094288 | |
| Feb 02, 2019 | Iron, Total | .205 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1040411 | |
| Feb 02, 2019 | Iron, Total | .191 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1040411 | |
| Nov 29, 2018 | Iron, Total | .364 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1032179 | |
| Nov 29, 2018 | Iron, Total | .453 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1032179 | |
| Mar 21, 2018 | Iron, Total | .102 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 998731 | |
| Mar 21, 2018 | Iron, Total | .105 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 998731 | |
| Mar 21, 2018 | Iron, Total | DNQ .0615 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 998731 | |
| Mar 02, 2018 | Iron, Total | .115 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 996211 | |
| Mar 02, 2018 | Iron, Total | .17 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 996211 | |
| Mar 02, 2018 | Iron, Total | .185 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 996211 | |
| Jan 08, 2018 | Iron, Total | .399 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 992966 | |
| Jan 08, 2018 | Iron, Total | .125 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 992966 | |
| Jan 08, 2018 | Iron, Total | .39 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 992966 | |
| Nov 16, 2017 | Iron, Total | .141 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 988621 | |
| Nov 16, 2017 | Iron, Total | .161 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 988621 | |
| Mar 07, 2016 | Iron, Total | .576 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Mar 07, 2016 | Iron, Total | .156 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Mar 07, 2016 | Iron, Total | .161 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Mar 07, 2016 | Iron, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Mar 07, 2016 | Iron, Total | .32 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Mar 07, 2016 | Iron, Total | .146 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 | |
| Feb 18, 2016 | Iron, Total | .407 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 868290 |
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 | 5 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 01, 2009 – Jul 01, 2014 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Oct 23, 2009 – Dec 05, 2014 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Aug 17, 2010 – Aug 17, 2010 | 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 (20 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 08, 2026 | Annual reports | 1336730 | Annual report 2025 | — | |
| Jul 10, 2025 | Annual reports | 1295608 | Annual report 2024 | — | |
| Jul 03, 2024 | Annual reports | 1244762 | Annual report 2023 | — | |
| Jul 06, 2023 | Annual reports | 1190833 | Annual report 2022 | — | |
| Jul 09, 2022 | Annual reports | 1114337 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1070421 | Annual report 2020 | — | |
| Jul 08, 2020 | Annual reports | 987811 | Annual report 2019 | — | |
| Jul 02, 2019 | Annual reports | 955436 | Annual report 2018 | — | |
| Jul 11, 2018 | Annual reports | 940857 | Annual report 2017 | — | |
| Jul 13, 2017 | Annual reports | 880210 | Annual report 2016 | — | |
| Jul 15, 2016 | Annual reports | 847369 | Annual report 2015 | — | |
| Dec 05, 2014 | Enforcement actions | 417213 | 13267 Letter/Order (Water Code section 13267 letter or order) | Active | |
| Jul 01, 2014 | Violations | 855447 | Deficient BMP Implementation | Violation | Report |
| Jul 01, 2013 | Violations | 855448 | Deficient BMP Implementation | Violation | Report |
| Jul 01, 2012 | Violations | 855449 | Deficient BMP Implementation | Violation | Report |
| Mar 23, 2012 | Enforcement actions | 408415 | 13267 Letter/Order (Water Code section 13267 letter or order) | Historical | |
| Jun 29, 2011 | Violations | 847719 | Deficient BMP Implementation | Violation | Report |
| Aug 17, 2010 | Inspections | 2008438 | B Type compliance | — | Additional Info Required |
| Oct 23, 2009 | Enforcement actions | 401610 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 01, 2009 | Violations | 841407 | Deficient BMP Implementation | 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.