Leprino Foods Co
Active WDID 5S39I016427 Tracy, 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
- Tracy, San Joaquin County
- Region 5S · Central Valley (Sacramento) · Location · Statewide map
- Receiving water
- Sugar Cut Of Sacramento River (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
- 111 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 16, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 2 violation records · 2 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
- 37.75434, -121.41468
- 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
- 2401 N Macarthur Dr, Tracy 95376
- Regional Water Board
- 5S — Central Valley (Sacramento)
HUC12 watershed Evidence: spatial
- Upper Old River HUC12 180400030601
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
- Leprino Foods Company
- Primary industry (SIC)
- 2022-Natural, Processed, and Imitation Cheese
- Secondary SIC
- 2023-Dry, Condensed, and Evaporated Dairy Products
- Application ID
- 201842
- NOI processed
- Mar 23, 2001
- Last certified
- Dec 08, 2025
- Facility size
- 8 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 201842 | Industrial | Active | Mar 23, 2001 | — | Dec 08, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Sugar Cut Of Sacramento River
- Discharges directly / indirectly
- Y / 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.
111 distinct measurements across 3 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 | 12 | 3 | 0 | Oct 13, 2025 | Feb 16, 2026 |
| 2024 | 6 | 3 | 0 | Nov 14, 2024 | Feb 04, 2025 |
| 2023 | 6 | 3 | 0 | Dec 06, 2023 | Jan 02, 2024 |
| 2022 | 15 | 3 | 0 | Nov 02, 2022 | Dec 06, 2023 |
| 2021 | 6 | 3 | 0 | Oct 21, 2021 | Oct 25, 2021 |
| 2020 | 12 | 3 | 0 | Nov 18, 2020 | Mar 10, 2021 |
| 2019 | 9 | 3 | 0 | Dec 02, 2019 | Jan 16, 2020 |
| 2018 | 12 | 3 | 0 | Nov 23, 2018 | Mar 07, 2019 |
| 2017 | 12 | 3 | 0 | Nov 16, 2017 | Mar 01, 2018 |
| 2016 | 12 | 3 | 0 | Oct 16, 2016 | Jan 18, 2017 |
| 2015 | 9 | 3 | 0 | Nov 24, 2015 | Apr 14, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 37 | 0 | Nov 24, 2015 | Feb 16, 2026 | Results |
| pH | SU | 37 | 0 | Nov 24, 2015 | Feb 16, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 37 | 0 | Nov 24, 2015 | Feb 16, 2026 | Results |
All results (111 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 16, 2026 | Oil and Grease | 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1369961 | |
| Feb 16, 2026 | pH | 8.15 | SU | Effluent | Qualifying Storm Event | pH_Field | 1369961 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 2.45 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1369961 | |
| Feb 10, 2026 | Oil and Grease | 0 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1368267 | |
| Feb 10, 2026 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1368267 | |
| Feb 10, 2026 | Total Suspended Solids (TSS) | 23.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1368267 | |
| Jan 05, 2026 | Oil and Grease | 7.45 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1368251 | |
| Jan 05, 2026 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1368251 | |
| Jan 05, 2026 | Total Suspended Solids (TSS) | 24.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1368251 | |
| Oct 13, 2025 | Oil and Grease | 3.51 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1356478 | |
| Oct 13, 2025 | pH | 9.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1356478 | |
| Oct 13, 2025 | Total Suspended Solids (TSS) | 29.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1356478 | |
| Feb 04, 2025 | Oil and Grease | 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1324552 | |
| Feb 04, 2025 | pH | 7.49 | SU | Effluent | Qualifying Storm Event | A4500HB | 1324552 | |
| Feb 04, 2025 | Total Suspended Solids (TSS) | 21.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1324552 | |
| Nov 14, 2024 | Oil and Grease | 3.58 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315805 | |
| Nov 14, 2024 | pH | 7.01 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315805 | |
| Nov 14, 2024 | Total Suspended Solids (TSS) | 20.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315805 | |
| Jan 02, 2024 | Oil and Grease | 2.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1272148 | |
| Jan 02, 2024 | pH | 7.01 | SU | Effluent | Qualifying Storm Event | A4500HB | 1272148 | |
| Jan 02, 2024 | Total Suspended Solids (TSS) | 15.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1272148 | |
| Dec 06, 2023 | Oil and Grease | 5.05 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1217160 | |
| Dec 06, 2023 | Oil and Grease | 5.05 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1272145 | |
| Dec 06, 2023 | pH | 7.01 | SU | Effluent | Qualifying Storm Event | A4500HB | 1217160 | |
| Dec 06, 2023 | pH | 7.01 | SU | Effluent | Qualifying Storm Event | A4500HB | 1272145 | |
| Dec 06, 2023 | Total Suspended Solids (TSS) | 36.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1217160 | |
| Dec 06, 2023 | Total Suspended Solids (TSS) | 36.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1272145 | |
| Jan 11, 2023 | Oil and Grease | 2.47 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1225760 | |
| Jan 11, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1225760 | |
| Jan 11, 2023 | Total Suspended Solids (TSS) | 18.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1225760 | |
| Jan 04, 2023 | Oil and Grease | 3.23 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1225751 | |
| Jan 04, 2023 | pH | 8.24 | SU | Effluent | Qualifying Storm Event | pH_Field | 1225751 | |
| Jan 04, 2023 | Total Suspended Solids (TSS) | 41.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1225751 | |
| Dec 07, 2022 | Oil and Grease | 3.48 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1217160 | |
| Dec 07, 2022 | pH | 6.86 | SU | Effluent | Qualifying Storm Event | pH_Field | 1217160 | |
| Dec 07, 2022 | Total Suspended Solids (TSS) | 30.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1217160 | |
| Nov 02, 2022 | Oil and Grease | 16.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1217158 | |
| Nov 02, 2022 | pH | 7.16 | SU | Effluent | Qualifying Storm Event | pH_Field | 1217158 | |
| Nov 02, 2022 | Total Suspended Solids (TSS) | 87.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1217158 | |
| Oct 25, 2021 | Oil and Grease | 2.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1170298 | |
| Oct 25, 2021 | pH | 7.39 | SU | Effluent | Qualifying Storm Event | pH_Field | 1170298 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 56.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1170298 | |
| Oct 21, 2021 | Oil and Grease | 6.14 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1170291 | |
| Oct 21, 2021 | pH | 6.91 | SU | Effluent | Qualifying Storm Event | pH_Field | 1170291 | |
| Oct 21, 2021 | Total Suspended Solids (TSS) | 79.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1170291 | |
| Mar 10, 2021 | Oil and Grease | 2.86 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1146772 | |
| Mar 10, 2021 | pH | 7.82 | SU | Effluent | Qualifying Storm Event | pH_Field | 1146772 | |
| Mar 10, 2021 | Total Suspended Solids (TSS) | 31.2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1146772 | |
| Feb 02, 2021 | Oil and Grease | 7.61 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1144870 | |
| Feb 02, 2021 | pH | 7.26 | SU | Effluent | Qualifying Storm Event | pH_Field | 1144870 |
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 | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 01, 2014 – Dec 01, 2016 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 2 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 15, 2014 – Dec 09, 2016 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Dec 01, 2016 – Sep 15, 2026 | Oct 21, 2026 | All inspections |
| Annual reports | 10 | 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 (16 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Sep 15, 2026 | Inspections | 2072004 | B Type compliance | Finalized | Additional Info Required |
| Jun 15, 2026 | Annual reports | 1333820 | Annual report 2025 | — | |
| Jul 02, 2025 | Annual reports | 1292580 | Annual report 2024 | — | |
| Jul 03, 2024 | Annual reports | 1241562 | Annual report 2023 | — | |
| Jul 13, 2023 | Annual reports | 1187476 | Annual report 2022 | — | |
| Jul 05, 2022 | Annual reports | 1110702 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1066616 | Annual report 2020 | — | |
| Jun 17, 2020 | Annual reports | 983740 | Annual report 2019 | — | |
| Jun 19, 2019 | Annual reports | 951228 | Annual report 2018 | — | |
| Jun 12, 2017 | Annual reports | 875755 | Annual report 2016 | — | |
| Dec 09, 2016 | Enforcement actions | 425396 | NOV (Notice of Violation) | Active | |
| Dec 01, 2016 | Inspections | 2032129 | Complaint | — | Additional Info Required |
| Dec 01, 2016 | Violations | 862321 | Deficient BMP Implementation | Violation | Inspection |
| Jun 24, 2016 | Annual reports | 839689 | Annual report 2015 | — | |
| Aug 15, 2014 | Enforcement actions | 416517 | 1st NNC - AR (First Notice of Non-Compliance (annual report)) | Historical | |
| Jul 01, 2014 | Violations | 854866 | 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.