Nicasio Rock Quarry Lafranchi Quarry
Active WDID 2 21I015249 Nicasio, 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
- Nicasio, Marin County
- Region 2 · San Francisco Bay · 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 57 distinct results, 5 reporting years (2015 to 2025)
- Most recent sample Apr 11, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 10 violation records · 19 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
- 38.08361, -122.72103
- Precision
- 5 decimal places
- Shared point
- 2 permits report this exact point
- Matches application record
- same
Facility location as reported by the discharger in SMARTS; not a discharge point or outfall.
- Facility address
- 5400 Nicasio Valley Rd, Nicasio 94946
- Regional Water Board
- 2 — San Francisco Bay
HUC12 watershed Evidence: spatial
- Nicasio Creek HUC12 180500050102
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
- Lunny Grading Paving Inc
- Primary industry (SIC)
- 1429-Crushed and Broken Stone, NEC
- Application ID
- 182165
- NOI processed
- Jul 06, 1999
- Last certified
- Dec 26, 2015
- Facility size
- 6 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 182165 | Industrial | Active | Jul 06, 1999 | — | Dec 26, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Halleck Creek
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Nicasio Reservoir CAL2011301220050519182548 | 82 m | listed | 1 |
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.
57 distinct measurements across 3 parameters, most recent sample Apr 11, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 9 | 3 | 0 | Feb 11, 2026 | Apr 11, 2026 |
| 2024 | 9 | 3 | 0 | Dec 27, 2024 | Mar 12, 2025 |
| 2023 | 15 | 3 | 0 | Dec 19, 2023 | Feb 14, 2024 |
| 2016 | 12 | 3 | 0 | Nov 19, 2016 | Feb 02, 2017 |
| 2015 | 12 | 3 | 0 | Dec 24, 2015 | Mar 21, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 19 | 0 | Dec 24, 2015 | Apr 11, 2026 | Results |
| pH | SU | 19 | 0 | Dec 24, 2015 | Apr 11, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 19 | 0 | Dec 24, 2015 | Apr 11, 2026 | Results |
All results (57 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Apr 11, 2026 | Oil and Grease | 3.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377211 | |
| Apr 11, 2026 | pH | 7.2 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377211 | |
| Apr 11, 2026 | Total Suspended Solids (TSS) | 93 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377211 | |
| Feb 16, 2026 | Oil and Grease | 13 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377211 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377211 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377211 | |
| Feb 11, 2026 | Oil and Grease | .8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1377211 | |
| Feb 11, 2026 | pH | 7.3 | SU | Effluent | Qualifying Storm Event | A4500HB | 1377211 | |
| Feb 11, 2026 | Total Suspended Solids (TSS) | 99 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1377211 | |
| Mar 12, 2025 | Oil and Grease | 3.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1333628 | |
| Mar 12, 2025 | pH | 7.72 | SU | Effluent | Qualifying Storm Event | A4500HB | 1333628 | |
| Mar 12, 2025 | Total Suspended Solids (TSS) | 122 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1333628 | |
| Feb 13, 2025 | Oil and Grease | 4.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1333628 | |
| Feb 13, 2025 | pH | 7.76 | SU | Effluent | Qualifying Storm Event | A4500HB | 1333628 | |
| Feb 13, 2025 | Total Suspended Solids (TSS) | 58 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1333628 | |
| Dec 27, 2024 | Oil and Grease | 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1333628 | |
| Dec 27, 2024 | pH | 7.65 | SU | Effluent | Qualifying Storm Event | A4500HB | 1333628 | |
| Dec 27, 2024 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1333628 | |
| Feb 14, 2024 | Oil and Grease | 5.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1288068 | |
| Feb 14, 2024 | pH | 8 | SU | Effluent | Qualifying Storm Event | A4500HB | 1288068 | |
| Feb 14, 2024 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1288068 | |
| Jan 31, 2024 | Oil and Grease | 5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275753 | |
| Jan 31, 2024 | pH | 7.62 | SU | Effluent | Qualifying Storm Event | A4500HB | 1275753 | |
| Jan 31, 2024 | Total Suspended Solids (TSS) | 220 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275753 | |
| Jan 19, 2024 | Oil and Grease | 6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275753 | |
| Jan 19, 2024 | Oil and Grease | 6 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1275753 | |
| Jan 19, 2024 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1275753 | |
| Jan 19, 2024 | pH | 7.9 | SU | Effluent | Qualifying Storm Event | A4500HB | 1275753 | |
| Jan 19, 2024 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275753 | |
| Jan 19, 2024 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1275753 | |
| Dec 19, 2023 | Oil and Grease | 6.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1270553 | |
| Dec 19, 2023 | pH | 7.61 | SU | Effluent | Qualifying Storm Event | A4500HB | 1270553 | |
| Dec 19, 2023 | Total Suspended Solids (TSS) | 29.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1270553 | |
| Feb 02, 2017 | Oil and Grease | 8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 914776 | |
| Feb 02, 2017 | pH | 7.73 | SU | Effluent | Qualifying Storm Event | pH_Field | 914776 | |
| Feb 02, 2017 | Total Suspended Solids (TSS) | 50 | mg/L | Effluent | Qualifying Storm Event | A2540D | 914776 | |
| Jan 18, 2017 | Oil and Grease | 16 | mg/L | Effluent | Qualifying Storm Event | E1664A | 914776 | |
| Jan 18, 2017 | pH | 7.6 | SU | Effluent | Qualifying Storm Event | pH_Field | 914776 | |
| Jan 18, 2017 | Total Suspended Solids (TSS) | 78 | mg/L | Effluent | Qualifying Storm Event | A2540D | 914776 | |
| Dec 14, 2016 | Oil and Grease | 11.2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 914776 | |
| Dec 14, 2016 | pH | 7.8 | SU | Effluent | Qualifying Storm Event | pH_Field | 914776 | |
| Dec 14, 2016 | Total Suspended Solids (TSS) | 29 | mg/L | Effluent | Qualifying Storm Event | A2540D | 914776 | |
| Nov 19, 2016 | Oil and Grease | .4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 914776 | |
| Nov 19, 2016 | pH | 7.75 | SU | Effluent | Qualifying Storm Event | pH_Field | 914776 | |
| Nov 19, 2016 | Total Suspended Solids (TSS) | .2 | mg/L | Effluent | Qualifying Storm Event | A2540D | 914776 | |
| Mar 21, 2016 | Oil and Grease | 10.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 864318 | |
| Mar 21, 2016 | pH | 8.65 | SU | Effluent | Qualifying Storm Event | pH_Field | 864318 | |
| Mar 21, 2016 | Total Suspended Solids (TSS) | 42 | mg/L | Effluent | Qualifying Storm Event | A2540D | 864318 | |
| Feb 17, 2016 | Oil and Grease | .3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 864318 | |
| Feb 17, 2016 | pH | 8.1 | SU | Effluent | Qualifying Storm Event | pH_Field | 864318 |
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 | 10 | 8 Violation · 0 Potential (preliminary) · 2 Dismissed | Jul 04, 2005 – Aug 15, 2015 | Oct 21, 2026 | All violations |
| Enforcement actions | 19 | 17 issued · 2 draft · 0 withdrawn, rescinded or superseded | Aug 05, 2005 – Dec 11, 2015 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Oct 26, 2011 – Oct 26, 2011 | 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 (41 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 14, 2026 | Annual reports | 1334951 | Annual report 2025 | — | |
| Jul 15, 2025 | Annual reports | 1293748 | Annual report 2024 | — | |
| Jun 24, 2024 | Annual reports | 1242800 | Annual report 2023 | — | |
| Jul 16, 2023 | Annual reports | 1188784 | Annual report 2022 | — | |
| Jul 25, 2022 | Annual reports | 1112114 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1068103 | Annual report 2020 | — | |
| Jul 12, 2020 | Annual reports | 985323 | Annual report 2019 | — | |
| Jun 28, 2019 | Annual reports | 952852 | Annual report 2018 | — | |
| Jul 15, 2018 | Annual reports | 938265 | Annual report 2017 | — | |
| Jul 15, 2017 | Annual reports | 877476 | Annual report 2016 | — | |
| Jul 11, 2016 | Annual reports | 844024 | Annual report 2015 | — | |
| Dec 11, 2015 | Enforcement actions | 421972 | NNC (Notice of Non-Compliance) | Active | |
| Oct 30, 2015 | Enforcement actions | 421054 | NNC (Notice of Non-Compliance) | Active | |
| Aug 15, 2015 | Violations | 858733 | Failure to Obtain Permit | Violation | Report |
| Jul 03, 2012 | Enforcement actions | 409918 | EPL (Expedited Payment Letter) | Historical | Order No. R2-2012-0067 |
| Nov 14, 2011 | Enforcement actions | 407129 | NOV (Notice of Violation) | Active | |
| Oct 26, 2011 | Inspections | 2013188 | B Type compliance | — | Additional Info Required |
| Oct 26, 2011 | Violations | 846526 | Deficient BMP Implementation | Violation | Inspection |
| Aug 31, 2011 | Enforcement actions | 407183 | NOV (Notice of Violation) | Historical | |
| Jul 02, 2011 | Violations | 846820 | Late Report | Violation | Report |
| Feb 16, 2010 | Enforcement actions | 401163 | ACL (Administrative Civil Liability) | Historical | R2-2010-0024 |
| Aug 03, 2009 | Enforcement actions | 371369 | NNC (Notice of Non-Compliance) | Historical | |
| Jul 02, 2009 | Violations | 838810 | Late Report | Violation | Report |
| Dec 12, 2008 | Enforcement actions | 358172 | NNC (Notice of Non-Compliance) | Historical | |
| Dec 12, 2008 | Enforcement actions | 358173 | NNC (Notice of Non-Compliance) | 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.