Granite Rock Co Salinas Concre
Active WDID 3 27I006078 Salinas, Monterey County Region 3 · Central Coast
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Salinas, Monterey County
- Region 3 · Central Coast · Location · Statewide map
- Receiving water
- Salinas River (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
- 253 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Apr 21, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 2 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
- 36.67293, -121.64417
- 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
- 400 Work St, Salinas 93901
- Regional Water Board
- 3 — Central Coast
HUC12 watershed Evidence: spatial
- Nativdad Creek-Gabilan Creek HUC12 180600150102
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
- Granite Rock Co Concrete
- Primary industry (SIC)
- 3273-Ready-Mixed Concrete
- Application ID
- 185165
- NOI processed
- Apr 20, 1992
- Last certified
- Dec 22, 2023
- Facility size
- 6 Acres
- Impervious area
- 100 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 185165 | Industrial | Active | Apr 20, 1992 | — | Dec 22, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Salinas River
- Discharges directly / indirectly
- N / N (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
6 official waterbodies share 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 |
|---|---|---|---|
| Salinas Reclamation Canal CAR3091101019980828112229 | 283 m | listed | 31 |
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.
253 distinct measurements across 5 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 | 20 | 4 | 0 | Nov 17, 2025 | Apr 21, 2026 |
| 2024 | 19 | 4 | 0 | Nov 11, 2024 | Mar 13, 2025 |
| 2023 | 24 | 4 | 0 | Dec 19, 2023 | Feb 05, 2024 |
| 2022 | 32 | 4 | 0 | Nov 01, 2022 | Feb 24, 2023 |
| 2021 | 24 | 4 | 0 | Oct 25, 2021 | Apr 22, 2022 |
| 2020 | 24 | 4 | 0 | Jan 27, 2021 | Mar 19, 2021 |
| 2019 | 28 | 4 | 0 | Nov 27, 2019 | Apr 06, 2020 |
| 2018 | 19 | 4 | 0 | Nov 28, 2018 | Mar 05, 2019 |
| 2017 | 16 | 4 | 0 | Jan 05, 2018 | Mar 13, 2018 |
| 2016 | 38 | 5 | 0 | Jan 03, 2017 | Apr 07, 2017 |
| 2015 | 9 | 5 | 0 | Dec 21, 2015 | Dec 22, 2015 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 62 | 42 | Dec 21, 2015 | Apr 21, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 62 | 1 | Dec 21, 2015 | Apr 21, 2026 | Results |
| pH | SU | 61 | 0 | Dec 21, 2015 | Apr 21, 2026 | Results |
| Iron, Total | mg/L | 58 | 2 | Dec 21, 2015 | Apr 21, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 10 | 0 | Dec 21, 2015 | Apr 07, 2017 | Results |
All results (253 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 21, 2026 | Iron, Total | .96 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1374528 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1374528 | |
| Apr 21, 2026 | pH | 7.45 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374528 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374528 | |
| Feb 17, 2026 | Iron, Total | 4.6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371862 | |
| Feb 17, 2026 | Iron, Total | 4 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371862 | |
| Feb 17, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1371862 | |
| Feb 17, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1371862 | |
| Feb 17, 2026 | pH | 7.28 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371862 | |
| Feb 17, 2026 | pH | 7.4 | SU | Effluent | Qualifying Storm Event | pH_Field | 1371862 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | 70 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371862 | |
| Feb 17, 2026 | Total Suspended Solids (TSS) | 74 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371862 | |
| Feb 11, 2026 | Iron, Total | 4.4 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1368816 | |
| Feb 11, 2026 | Oil and Grease | 1 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1368816 | |
| Feb 11, 2026 | pH | 8.36 | SU | Effluent | Qualifying Storm Event | pH_Field | 1368816 | |
| Feb 11, 2026 | Total Suspended Solids (TSS) | 330 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1368816 | |
| Nov 17, 2025 | Iron, Total | 5.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1360496 | |
| Nov 17, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1360496 | |
| Nov 17, 2025 | pH | 7.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1360496 | |
| Nov 17, 2025 | Total Suspended Solids (TSS) | 120 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1360496 | |
| Mar 13, 2025 | Iron, Total | 1.5 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1329565 | |
| Mar 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1329565 | |
| Mar 13, 2025 | pH | 8.06 | SU | Effluent | Qualifying Storm Event | pH_Field | 1329565 | |
| Mar 13, 2025 | Total Suspended Solids (TSS) | 44 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1329565 | |
| Feb 13, 2025 | Iron, Total | 5 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1325011 | |
| Feb 13, 2025 | Iron, Total | 2.7 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1325011 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325011 | |
| Feb 13, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1325011 | |
| Feb 13, 2025 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1325011 | |
| Feb 13, 2025 | pH | 8.38 | SU | Effluent | Qualifying Storm Event | pH_Field | 1325011 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 210 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325011 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1325011 | |
| Feb 06, 2025 | Iron, Total | 4.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1321893 | |
| Feb 06, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321893 | |
| Feb 06, 2025 | pH | 7.84 | SU | Effluent | Qualifying Storm Event | pH_Field | 1321893 | |
| Feb 06, 2025 | Total Suspended Solids (TSS) | 120 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321893 | |
| Nov 11, 2024 | Iron, Total | 3.8 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1316366 | |
| Nov 11, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1316366 | |
| Nov 11, 2024 | Total Suspended Solids (TSS) | 100 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1316366 | |
| Feb 05, 2024 | Iron, Total | 1.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1280672 | |
| Feb 05, 2024 | Iron, Total | 1.2 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1280672 | |
| Feb 05, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1280672 | |
| Feb 05, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1280672 | |
| Feb 05, 2024 | pH | 7.01 | SU | Effluent | Qualifying Storm Event | pH_Field | 1280672 | |
| Feb 05, 2024 | pH | 7.06 | SU | Effluent | Qualifying Storm Event | pH_Field | 1280672 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1280672 | |
| Feb 05, 2024 | Total Suspended Solids (TSS) | 10 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1280672 | |
| Jan 22, 2024 | Iron, Total | 3.1 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1280668 | |
| Jan 22, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1280668 | |
| Jan 22, 2024 | pH | 7.69 | SU | Effluent | Qualifying Storm Event | pH_Field | 1280668 |
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 | May 02, 2019 – May 02, 2019 | Oct 21, 2026 | All violations |
| Enforcement actions | 3 | 3 issued · 0 draft · 0 withdrawn, rescinded or superseded | Mar 01, 2012 – Dec 06, 2019 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | May 02, 2019 – Sep 29, 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 13, 2026 | Annual reports | 1333895 | Annual report 2025 | — | |
| Jul 10, 2025 | Annual reports | 1292656 | Annual report 2024 | — | |
| Jul 09, 2024 | Annual reports | 1241643 | Annual report 2023 | — | |
| Jul 14, 2023 | Annual reports | 1187561 | Annual report 2022 | — | |
| Jul 13, 2022 | Annual reports | 1110801 | Annual report 2021 | — | |
| Jul 01, 2021 | Annual reports | 1066718 | Annual report 2020 | — | |
| Sep 29, 2020 | Inspections | 2052011 | B Type compliance | Finalized | No Further Action |
| Jul 14, 2020 | Annual reports | 983853 | Annual report 2019 | — | |
| Dec 06, 2019 | Enforcement actions | 435503 | NOV (Notice of Violation) | Historical | |
| Dec 06, 2019 | Enforcement actions | 435504 | NOV (Notice of Violation) | Historical | |
| Jun 29, 2019 | Annual reports | 951344 | Annual report 2018 | — | |
| May 02, 2019 | Inspections | 2042574 | B Type compliance | — | Additional Info Required |
| May 02, 2019 | Violations | 872144 | Incomplete/Insufficient SWPPP | Violation | Inspection |
| May 02, 2019 | Violations | 872146 | Unauthorized NSWD | Violation | Inspection |
| Jul 10, 2018 | Annual reports | 936750 | Annual report 2017 | — | |
| Jul 09, 2017 | Annual reports | 875876 | Annual report 2016 | — | |
| Jun 30, 2016 | Annual reports | 838932 | Annual report 2015 | — | |
| Mar 01, 2012 | Enforcement actions | 408156 | SEL (Staff Enforcement Letter) | Historical |
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.