San Joaquin Cnty Stockton Metr
Active WDID 5S39I000174 Stockton, San Joaquin 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
- Stockton, San Joaquin County
- Region 5S · Central Valley (Sacramento) · 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
- None
- Monitoring results Evidence: facility-reported
- 304 distinct results, 10 reporting years (2016 to 2025)
- Most recent sample Apr 21, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 3 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
- 37.897, -121.25278
- Precision
- 3 decimal places low precision
- Shared point
- No
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 5000 S Airport Way Ste 202, Stockton 95206
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Walker Slough-French Camp Slough HUC12 180400510403
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
- San Joaquin Cnty
- Primary industry (SIC)
- 4581-Airports, Flying Fields, and Airport Terminal Services
- Application ID
- 201548
- NOI processed
- Feb 26, 1992
- Last certified
- Aug 26, 2026
- Facility size
- 1551 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 201548 | Industrial | Active | Feb 26, 1992 | — | Aug 26, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Little Johns Creek
- Discharges directly / indirectly
- N / 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
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.
304 distinct measurements across 9 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 | 52 | 4 | 0 | Oct 02, 2025 | Apr 21, 2026 |
| 2024 | 39 | 4 | 0 | Dec 24, 2024 | Feb 04, 2025 |
| 2023 | 18 | 3 | 0 | Jan 02, 2024 | Jan 10, 2024 |
| 2022 | 18 | 3 | 0 | Mar 09, 2023 | Mar 21, 2023 |
| 2021 | 18 | 3 | 0 | Dec 22, 2021 | Dec 29, 2021 |
| 2020 | 18 | 3 | 0 | Feb 02, 2021 | Feb 11, 2021 |
| 2019 | 33 | 3 | 0 | Sep 16, 2019 | Jan 16, 2020 |
| 2018 | 27 | 3 | 0 | Dec 24, 2018 | Feb 13, 2019 |
| 2017 | 20 | 4 | 0 | Jan 08, 2018 | Feb 26, 2018 |
| 2016 | 61 | 8 | 0 | Dec 15, 2016 | Apr 08, 2017 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 90 | 48 | Dec 15, 2016 | Apr 21, 2026 | Results |
| pH | SU | 90 | 0 | Dec 15, 2016 | Apr 21, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 90 | 1 | Dec 15, 2016 | Apr 21, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 8 | 0 | Dec 15, 2016 | Feb 26, 2018 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 7 | 6 | Dec 24, 2024 | Apr 21, 2026 | Results |
| Gasoline | mg/L | 7 | 7 | Dec 15, 2016 | Apr 08, 2017 | Results |
| 2,4-D | ug/L | 4 | 1 | Dec 15, 2016 | Apr 08, 2017 | Results |
| Diesel Oil | mg/L | 4 | 3 | Dec 23, 2016 | Apr 08, 2017 | Results |
| Diuron | ug/L | 4 | 0 | Dec 15, 2016 | Apr 08, 2017 | Results |
All results (304 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 21, 2026 | Chemical Oxygen Demand (COD) | ND | mg/L | Effluent | Qualifying Storm Event | A5220D | 1373021 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373021 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373021 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373021 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1373021 | |
| Apr 21, 2026 | pH | 7.27 | SU | Effluent | Qualifying Storm Event | pH_Field | 1373021 | |
| Apr 21, 2026 | pH | 8.02 | SU | Effluent | Qualifying Storm Event | pH_Field | 1373021 | |
| Apr 21, 2026 | pH | 7.34 | SU | Effluent | Qualifying Storm Event | pH_Field | 1373021 | |
| Apr 21, 2026 | pH | 7.65 | SU | Effluent | Qualifying Storm Event | pH_Field | 1373021 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 79.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373021 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 36.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373021 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 1.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373021 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 5.05 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1373021 | |
| Feb 16, 2026 | Chemical Oxygen Demand (COD) | ND | mg/L | Effluent | Qualifying Storm Event | A5220D | 1369173 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369173 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369173 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369173 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369173 | |
| Feb 16, 2026 | pH | 8.02 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369173 | |
| Feb 16, 2026 | pH | 8.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369173 | |
| Feb 16, 2026 | pH | 8.54 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369173 | |
| Feb 16, 2026 | pH | 7.57 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369173 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 28.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369173 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 40.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369173 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 48.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369173 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 5.55 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369173 | |
| Nov 13, 2025 | Chemical Oxygen Demand (COD) | 72.9 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1362910 | |
| Nov 13, 2025 | Oil and Grease | 4.26 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362910 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362910 | |
| Nov 13, 2025 | Oil and Grease | 11.1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362910 | |
| Nov 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362910 | |
| Nov 13, 2025 | pH | 7.73 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362910 | |
| Nov 13, 2025 | pH | 8.52 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362910 | |
| Nov 13, 2025 | pH | 7.77 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362910 | |
| Nov 13, 2025 | pH | 7.91 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362910 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 36.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362910 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 27.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362910 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 27.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362910 | |
| Nov 13, 2025 | Total Suspended Solids (TSS) | 44.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362910 | |
| Oct 02, 2025 | Chemical Oxygen Demand (COD) | ND | mg/L | Effluent | Qualifying Storm Event | A5220D | 1350269 | |
| Oct 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1350269 | |
| Oct 02, 2025 | Oil and Grease | 2.45 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1350269 | |
| Oct 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1350269 | |
| Oct 02, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1350269 | |
| Oct 02, 2025 | pH | 7.53 | SU | Effluent | Qualifying Storm Event | pH_Field | 1350269 | |
| Oct 02, 2025 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1350269 | |
| Oct 02, 2025 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1350269 | |
| Oct 02, 2025 | pH | 6.75 | SU | Effluent | Qualifying Storm Event | pH_Field | 1350269 | |
| Oct 02, 2025 | Total Suspended Solids (TSS) | 6.87 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1350269 | |
| Oct 02, 2025 | Total Suspended Solids (TSS) | 149 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1350269 |
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 | 3 | 3 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 02, 2006 – Jan 01, 2018 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 17, 2006 – Feb 23, 2018 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Feb 14, 2020 – Feb 14, 2020 | 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 (18 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 06, 2026 | Annual reports | 1337050 | Annual report 2025 | — | |
| Jul 11, 2025 | Annual reports | 1295941 | Annual report 2024 | — | |
| Jul 09, 2024 | Annual reports | 1245118 | Annual report 2023 | — | |
| Jul 14, 2023 | Annual reports | 1191206 | Annual report 2022 | — | |
| Jul 15, 2022 | Annual reports | 1114747 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1070848 | Annual report 2020 | — | |
| Jul 20, 2020 | Annual reports | 988271 | Annual report 2019 | — | |
| Feb 14, 2020 | Inspections | 2046589 | B Type compliance | Performed | No Further Action |
| Jul 11, 2019 | Annual reports | 955907 | Annual report 2018 | — | |
| Jul 03, 2018 | Annual reports | 941330 | Annual report 2017 | — | |
| Feb 23, 2018 | Enforcement actions | 429155 | NOV (Notice of Violation) | Active | |
| Jan 01, 2018 | Violations | 866256 | Late Report | Violation | Report |
| Jul 12, 2017 | Annual reports | 880708 | Annual report 2016 | — | |
| Jul 18, 2016 | Annual reports | 843925 | Annual report 2015 | — | |
| Oct 23, 2009 | Enforcement actions | 401625 | SEL (Staff Enforcement Letter) | Historical | |
| Jul 01, 2009 | Violations | 841422 | Deficient BMP Implementation | Violation | Report |
| Aug 17, 2006 | Enforcement actions | 316105 | NNC (Notice of Non-Compliance) | Active | |
| Jul 02, 2006 | Violations | 445823 | 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.