Oldcastle APG
Active WDID 5S39I019399 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
- Receiving water
- North Branch Weber Creek (as reported by the facility)
- Evidence: not confirmed 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
- 146 distinct results, 8 reporting years (2015 to 2024)
- Most recent sample Mar 14, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 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
- 37.90752, -121.26565
- 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
- 4202 Gibralter Ct, 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
- Oldcastle APG
- Primary industry (SIC)
- 3271-Concrete Block and Brick
- Application ID
- 293049
- NOI processed
- Apr 01, 2005
- Last certified
- Jul 14, 2020
- Facility size
- 17 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 293049 | Industrial | Active | Apr 01, 2005 | — | Jul 14, 2020 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- North Branch Weber Creek
- 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.
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.
146 distinct measurements across 5 parameters, most recent sample Mar 14, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2024 | 30 | 5 | 0 | Nov 22, 2024 | Mar 14, 2025 |
| 2023 | 28 | 5 | 0 | Dec 18, 2023 | Mar 01, 2024 |
| 2022 | 24 | 4 | 0 | Nov 07, 2022 | Feb 27, 2023 |
| 2020 | 4 | 4 | 0 | Jan 28, 2021 | Jan 28, 2021 |
| 2018 | 24 | 4 | 0 | Nov 28, 2018 | May 18, 2019 |
| 2017 | 12 | 4 | 0 | Jan 08, 2018 | Apr 08, 2018 |
| 2016 | 8 | 4 | 0 | Nov 15, 2016 | Mar 21, 2017 |
| 2015 | 16 | 4 | 0 | Nov 02, 2015 | Mar 04, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Iron, Total | mg/L | 34 | 0 | Nov 02, 2015 | Mar 14, 2025 | Results |
| Oil and Grease | mg/L | 34 | 13 | Nov 02, 2015 | Mar 14, 2025 | Results |
| pH | SU | 34 | 0 | Nov 02, 2015 | Mar 14, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 34 | 0 | Nov 02, 2015 | Mar 14, 2025 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 10 | 0 | Feb 05, 2024 | Mar 14, 2025 | Results |
All results (146 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Mar 14, 2025 | Chemical Oxygen Demand (COD) | 38 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1328792 | |
| Mar 14, 2025 | Chemical Oxygen Demand (COD) | 29 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1328792 | |
| Mar 14, 2025 | Iron, Total | 4.2 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1328792 | |
| Mar 14, 2025 | Iron, Total | 3.8 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1328792 | |
| Mar 14, 2025 | Oil and Grease | 2.3 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1328792 | |
| Mar 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1328792 | |
| Mar 14, 2025 | pH | 7.63 | SU | Effluent | Qualifying Storm Event | pH_Field | 1328792 | |
| Mar 14, 2025 | pH | 7.89 | SU | Effluent | Qualifying Storm Event | pH_Field | 1328792 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 150 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328792 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 65 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328792 | |
| Feb 13, 2025 | Chemical Oxygen Demand (COD) | 49 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1325246 | |
| Feb 13, 2025 | Chemical Oxygen Demand (COD) | 23 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1325246 | |
| Feb 13, 2025 | Iron, Total | 14 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1325246 | |
| Feb 13, 2025 | Iron, Total | 1.4 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1325246 | |
| Feb 13, 2025 | Oil and Grease | 5.4 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1325246 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1325246 | |
| Feb 13, 2025 | pH | 8.38 | SU | Effluent | Qualifying Storm Event | pH_Field | 1325246 | |
| Feb 13, 2025 | pH | 7.83 | SU | Effluent | Qualifying Storm Event | pH_Field | 1325246 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 250 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325246 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 27 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325246 | |
| Nov 22, 2024 | Chemical Oxygen Demand (COD) | 120 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1317501 | |
| Nov 22, 2024 | Chemical Oxygen Demand (COD) | 95 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1317501 | |
| Nov 22, 2024 | Iron, Total | 4.6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1317501 | |
| Nov 22, 2024 | Iron, Total | 5.9 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1317501 | |
| Nov 22, 2024 | Oil and Grease | 2.1 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1317501 | |
| Nov 22, 2024 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1317501 | |
| Nov 22, 2024 | pH | 8.02 | SU | Effluent | Qualifying Storm Event | pH_Field | 1317501 | |
| Nov 22, 2024 | pH | 7.92 | SU | Effluent | Qualifying Storm Event | pH_Field | 1317501 | |
| Nov 22, 2024 | Total Suspended Solids (TSS) | 130 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1317501 | |
| Nov 22, 2024 | Total Suspended Solids (TSS) | 130 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1317501 | |
| Mar 01, 2024 | Chemical Oxygen Demand (COD) | 260 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1282333 | |
| Mar 01, 2024 | Chemical Oxygen Demand (COD) | 390 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1282333 | |
| Mar 01, 2024 | Iron, Total | 1.7 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1282333 | |
| Mar 01, 2024 | Iron, Total | 2 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1282333 | |
| Mar 01, 2024 | Oil and Grease | 4.9 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1282333 | |
| Mar 01, 2024 | Oil and Grease | 16 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1282333 | |
| Mar 01, 2024 | pH | 7.96 | SU | Effluent | Qualifying Storm Event | pH_Field | 1282333 | |
| Mar 01, 2024 | pH | 7.92 | SU | Effluent | Qualifying Storm Event | pH_Field | 1282333 | |
| Mar 01, 2024 | Total Suspended Solids (TSS) | 84 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1282333 | |
| Mar 01, 2024 | Total Suspended Solids (TSS) | 85 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1282333 | |
| Feb 05, 2024 | Chemical Oxygen Demand (COD) | 130 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1278858 | |
| Feb 05, 2024 | Chemical Oxygen Demand (COD) | 36 | mg/L | Effluent | Qualifying Storm Event | A5220D | 1278858 | |
| Feb 05, 2024 | Iron, Total | 15 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1278858 | |
| Feb 05, 2024 | Iron, Total | 1.8 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1278858 | |
| Feb 05, 2024 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1278858 | |
| Feb 05, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1278858 | |
| Feb 05, 2024 | pH | 7.92 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278858 | |
| Feb 05, 2024 | pH | 7.83 | SU | Effluent | Qualifying Storm Event | pH_Field | 1278858 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 200 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1278858 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 28 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1278858 |
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 | Mar 30, 2006 – Mar 30, 2006 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 30, 2007 – Mar 30, 2007 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Dec 18, 2018 – Dec 18, 2018 | 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 (14 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 08, 2026 | Annual reports | 1336803 | Annual report 2025 | — | |
| Jul 09, 2025 | Annual reports | 1295685 | Annual report 2024 | — | |
| Jun 12, 2024 | Annual reports | 1244845 | Annual report 2023 | — | |
| Jul 06, 2023 | Annual reports | 1190920 | Annual report 2022 | — | |
| Jun 21, 2022 | Annual reports | 1114431 | Annual report 2021 | — | |
| Jul 08, 2021 | Annual reports | 1070519 | Annual report 2020 | — | |
| Jul 16, 2020 | Annual reports | 987916 | Annual report 2019 | — | |
| Jun 29, 2019 | Annual reports | 955544 | Annual report 2018 | — | |
| Dec 18, 2018 | Inspections | 2041095 | B Type compliance | — | Additional Info Required |
| Jul 10, 2018 | Annual reports | 940965 | Annual report 2017 | — | |
| Jun 27, 2017 | Annual reports | 880321 | Annual report 2016 | — | |
| Jun 28, 2016 | Annual reports | 844301 | Annual report 2015 | — | |
| Mar 30, 2007 | Enforcement actions | 328412 | NOV (Notice of Violation) | Active | |
| Mar 30, 2006 | Violations | 507240 | Deficient 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.