Rich Readimix Concrete
Active WDID 2 21I001882 Greenbrae, Marin County Region 2 · San Francisco Bay
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Greenbrae, Marin County
- Region 2 · San Francisco Bay · Location · Statewide map
- Receiving water
- San Francisco Bay (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
- 2 waterbodies; 2 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 280 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Dec 23, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 4 inspections · 3 violation records · 4 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
- 37.9395, -122.5137
- Precision
- 4 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
- 101 Rich St, Greenbrae 94904
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- Angel Island-Frontal San Francisco Bay Estuaries HUC12 180500021001
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
- Rich Readimix Concrete
- Primary industry (SIC)
- 3273-Ready-Mixed Concrete
- Application ID
- 182132
- NOI processed
- Mar 31, 1992
- Last certified
- May 26, 2015
- Facility size
- 1 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 182132 | Industrial | Active | Mar 31, 1992 | — | May 26, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Francisco Bay
- Discharges directly / indirectly
- N / Y (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
3 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 |
|---|---|---|---|
| Corte Madera Creek CAR2032001119990218112526 | 389 m | listed | 1 |
| San Francisco Bay, Central CAB2031201019981217171707 | 696 m | listed | 11 |
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.
280 distinct measurements across 4 parameters, most recent sample Dec 23, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 16 | 4 | 0 | Nov 14, 2025 | Dec 23, 2025 |
| 2024 | 32 | 4 | 0 | Nov 21, 2024 | Mar 14, 2025 |
| 2023 | 32 | 4 | 0 | Dec 19, 2023 | Jan 22, 2024 |
| 2022 | 32 | 4 | 0 | Nov 09, 2022 | Jan 10, 2023 |
| 2021 | 32 | 4 | 0 | Oct 25, 2021 | Apr 15, 2022 |
| 2020 | 32 | 4 | 0 | Nov 19, 2020 | Mar 19, 2021 |
| 2019 | 28 | 4 | 0 | Dec 05, 2019 | Mar 25, 2020 |
| 2018 | 32 | 4 | 0 | Nov 27, 2018 | Feb 15, 2019 |
| 2017 | 12 | 4 | 0 | Nov 20, 2017 | Jan 26, 2018 |
| 2016 | 16 | 4 | 0 | Oct 28, 2016 | Feb 03, 2017 |
| 2015 | 16 | 4 | 0 | Dec 03, 2015 | Mar 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Iron, Total | mg/L | 70 | 0 | Dec 03, 2015 | Dec 23, 2025 | Results |
| Oil and Grease | mg/L | 70 | 60 | Dec 03, 2015 | Dec 23, 2025 | Results |
| pH | SU | 70 | 0 | Dec 03, 2015 | Dec 23, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 70 | 16 | Dec 03, 2015 | Dec 23, 2025 | Results |
All results (280 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 23, 2025 | Iron, Total | .0602 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362396 | |
| Dec 23, 2025 | Iron, Total | .0227 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1362396 | |
| Dec 23, 2025 | Oil and Grease | DNQ .625 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362396 | |
| Dec 23, 2025 | Oil and Grease | DNQ .389 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1362396 | |
| Dec 23, 2025 | pH | 8.5 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362396 | |
| Dec 23, 2025 | pH | 8.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1362396 | |
| Dec 23, 2025 | Total Suspended Solids (TSS) | 1.95 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362396 | |
| Dec 23, 2025 | Total Suspended Solids (TSS) | DNQ 1.22 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1362396 | |
| Nov 14, 2025 | Iron, Total | .314 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361089 | |
| Nov 14, 2025 | Iron, Total | .194 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1361089 | |
| Nov 14, 2025 | Oil and Grease | DNQ .329 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1361089 | |
| Nov 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1361089 | |
| Nov 14, 2025 | pH | 8.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1361089 | |
| Nov 14, 2025 | pH | 8.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1361089 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 14.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1361089 | |
| Nov 14, 2025 | Total Suspended Solids (TSS) | 7.58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1361089 | |
| Mar 14, 2025 | Iron, Total | .185 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1326784 | |
| Mar 14, 2025 | Iron, Total | .379 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1326784 | |
| Mar 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1326784 | |
| Mar 14, 2025 | Oil and Grease | DNQ .189 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1326784 | |
| Mar 14, 2025 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326784 | |
| Mar 14, 2025 | pH | 7.7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1326784 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 4.89 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1326784 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 13.9 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1326784 | |
| Feb 14, 2025 | Iron, Total | .354 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1321938 | |
| Feb 14, 2025 | Iron, Total | .42 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1321938 | |
| Feb 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321938 | |
| Feb 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1321938 | |
| Feb 14, 2025 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1321938 | |
| Feb 14, 2025 | pH | 8 | SU | Effluent | Qualifying Storm Event | pH_Field | 1321938 | |
| Feb 14, 2025 | Total Suspended Solids (TSS) | 5.48 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321938 | |
| Feb 14, 2025 | Total Suspended Solids (TSS) | 8.31 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1321938 | |
| Dec 25, 2024 | Iron, Total | .12 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1315794 | |
| Dec 25, 2024 | Oil and Grease | ND 1.54 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315794 | |
| Dec 25, 2024 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315794 | |
| Dec 25, 2024 | Total Suspended Solids (TSS) | 1.56 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315794 | |
| Nov 25, 2024 | Iron, Total | .108 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1315794 | |
| Nov 25, 2024 | Oil and Grease | ND 1.72 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315794 | |
| Nov 25, 2024 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315794 | |
| Nov 25, 2024 | Total Suspended Solids (TSS) | DNQ 1.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315794 | |
| Nov 21, 2024 | Iron, Total | .0739 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1315794 | |
| Nov 21, 2024 | Iron, Total | .137 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1315794 | |
| Nov 21, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315794 | |
| Nov 21, 2024 | Oil and Grease | ND 1.35 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1315794 | |
| Nov 21, 2024 | pH | 6.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315794 | |
| Nov 21, 2024 | pH | 6.2 | SU | Effluent | Qualifying Storm Event | pH_Field | 1315794 | |
| Nov 21, 2024 | Total Suspended Solids (TSS) | 3.24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315794 | |
| Nov 21, 2024 | Total Suspended Solids (TSS) | 4.54 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1315794 | |
| Jan 22, 2024 | Iron, Total | .139 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1273074 | |
| Jan 22, 2024 | Iron, Total | .188 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1273074 |
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 | 2 Violation · 0 Potential (preliminary) · 1 Dismissed | Jul 02, 1999 – Jul 16, 2026 | Oct 21, 2026 | All violations |
| Enforcement actions | 4 | 3 issued · 1 draft · 0 withdrawn, rescinded or superseded | Nov 08, 1999 – Jul 22, 2026 | Oct 21, 2026 | All actions |
| Inspections | 4 | inspections, not findings | Feb 06, 2012 – Aug 23, 2023 | 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 (22 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 30, 2026 | Annual reports | 1336634 | Annual report 2025 | — | |
| Jul 22, 2026 | Enforcement actions | 470174 | NOV (Notice of Violation) | Active | |
| Jul 16, 2026 | Violations | 904249 | Late Report | Violation | Report |
| Jul 07, 2025 | Annual reports | 1295503 | Annual report 2024 | — | |
| Jul 10, 2024 | Annual reports | 1244653 | Annual report 2023 | — | |
| Aug 23, 2023 | Inspections | 2061511 | B Type compliance | Finalized | Additional Info Required |
| Jul 06, 2023 | Annual reports | 1190722 | Annual report 2022 | — | |
| Jul 11, 2022 | Annual reports | 1114220 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1070297 | Annual report 2020 | — | |
| May 26, 2020 | Annual reports | 987676 | Annual report 2019 | — | |
| Jul 12, 2019 | Annual reports | 955294 | Annual report 2018 | — | |
| Jan 16, 2019 | Inspections | 2041091 | B Type compliance | — | Follow-up Inspection Needed |
| Jul 10, 2018 | Annual reports | 940714 | Annual report 2017 | — | |
| Jun 30, 2017 | Annual reports | 880059 | Annual report 2016 | — | |
| Jun 14, 2016 | Annual reports | 844140 | Annual report 2015 | — | |
| May 07, 2012 | Inspections | 2015484 | B Type compliance | — | No Further Action |
| Feb 06, 2012 | Inspections | 2014259 | B Type compliance | — | No Further Action |
| Aug 05, 2005 | Enforcement actions | 310808 | NNC (Notice of Non-Compliance) | Draft | 97-03DWQ |
| Aug 05, 2005 | Violations | 434891 | Late Report | Dismissed | Report |
| Dec 28, 1999 | Enforcement actions | 227014 | NOV (Notice of Violation) | Active | UNKNOWN |
| Nov 08, 1999 | Enforcement actions | 225895 | NOV (Notice of Violation) | Active | UNKNOWN |
| Jul 02, 1999 | Violations | 137017 | Deficient Report | Violation | Inspection |
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.