Zamaroni Quarry Inc
Active WDID 1 49I012744 Santa Rosa, Sonoma County Region 1 · North Coast
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Santa Rosa, Sonoma County
- Region 1 · North Coast · 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
- 334 distinct results, 10 reporting years (2015 to 2025)
- Most recent sample May 10, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 8 inspections · 4 violation records · 6 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
- 38.405815, -122.699618
- Precision
- 6 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
- 3500 Petaluma Hill Rd, Santa Rosa 95404
- Regional Water Board
- 1 — North Coast
HUC12 watershed Evidence: spatial
- Upper Laguna De Santa Rosa HUC12 180101100701
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
- Zamaroni Quarry Inc
- Primary industry (SIC)
- 3281-Cut Stone and Stone Products
- Secondary SIC
- 2875-Fertilizers, Mixing Only
- Tertiary SIC
- 3273-Ready-Mixed Concrete
- Application ID
- 178868
- NOI processed
- Dec 17, 1996
- Last certified
- Jul 15, 2015
- Facility size
- 21.8 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 178868 | Industrial | Active | Dec 17, 1996 | — | Jul 15, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Laguna De Santa Rosa
- 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.
| Waterbody (2026 Integrated Report) | Distance | 2026 303(d) list | Appendix A decisions |
|---|---|---|---|
| Russian River HU, Middle Russian River HA, Laguna HSA, tributaries to the Laguna de Santa Rosa (except Santa Rosa Creek and its tributaries) CAR1142100020131104054267 | 248 m | listed | 7 |
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.
334 distinct measurements across 9 parameters, most recent sample May 10, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 28 | 5 | 0 | Feb 16, 2026 | May 10, 2026 |
| 2024 | 48 | 8 | 0 | Feb 07, 2025 | Mar 14, 2025 |
| 2023 | 32 | 8 | 0 | Jan 03, 2024 | Mar 12, 2024 |
| 2022 | 16 | 8 | 0 | Feb 03, 2023 | Feb 03, 2023 |
| 2021 | 16 | 8 | 0 | Dec 13, 2021 | Dec 13, 2021 |
| 2019 | 40 | 8 | 0 | Dec 22, 2019 | Jan 07, 2020 |
| 2018 | 72 | 8 | 0 | Dec 16, 2018 | Mar 20, 2019 |
| 2017 | 72 | 8 | 0 | Mar 01, 2018 | Apr 06, 2018 |
| 2016 | 6 | 3 | 0 | Dec 23, 2016 | Dec 23, 2016 |
| 2015 | 4 | 4 | 0 | Dec 21, 2015 | Dec 21, 2015 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 46 | 33 | Dec 21, 2015 | May 10, 2026 | Results |
| pH | SU | 46 | 0 | Dec 21, 2015 | May 10, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 46 | 0 | Dec 21, 2015 | May 10, 2026 | Results |
| Iron, Total | mg/L | 43 | 0 | Mar 01, 2018 | May 10, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 41 | 4 | Mar 01, 2018 | May 10, 2026 | Results |
| Lead, Total | mg/L | 37 | 21 | Mar 01, 2018 | Mar 14, 2025 | Results |
| Phosphorus, Total (as P) | mg/L | 37 | 2 | Mar 01, 2018 | Mar 14, 2025 | Results |
| Zinc, Total | mg/L | 37 | 2 | Mar 01, 2018 | Mar 14, 2025 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 1 | 0 | Dec 21, 2015 | Dec 21, 2015 | Results |
All results (334 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| May 10, 2026 | Iron, Total | .72 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372981 | |
| May 10, 2026 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372981 | |
| May 10, 2026 | Oil and Grease | 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372981 | |
| May 10, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1372981 | |
| May 10, 2026 | Total Suspended Solids (TSS) | 9.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372981 | |
| Apr 21, 2026 | Iron, Total | .09 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372984 | |
| Apr 21, 2026 | Iron, Total | .24 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372984 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372984 | |
| Apr 21, 2026 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372984 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372984 | |
| Apr 21, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372984 | |
| Apr 21, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1372984 | |
| Apr 21, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1372984 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 1.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372984 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372984 | |
| Apr 10, 2026 | Iron, Total | .82 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1372981 | |
| Apr 10, 2026 | Nitrite Plus Nitrate (as N) | ND | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1372981 | |
| Apr 10, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1372981 | |
| Apr 10, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1372981 | |
| Apr 10, 2026 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1372981 | |
| Feb 16, 2026 | Iron, Total | .26 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371018 | |
| Feb 16, 2026 | Iron, Total | .37 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1371018 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1371018 | |
| Feb 16, 2026 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1371018 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1371018 | |
| Feb 16, 2026 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1371018 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371018 | |
| Feb 16, 2026 | Total Suspended Solids (TSS) | 7.8 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1371018 | |
| Mar 14, 2025 | Iron, Total | .11 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332418 | |
| Mar 14, 2025 | Iron, Total | .62 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332418 | |
| Mar 14, 2025 | Iron, Total | 1.3 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1332418 | |
| Mar 14, 2025 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332418 | |
| Mar 14, 2025 | Lead, Total | .000299 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332418 | |
| Mar 14, 2025 | Lead, Total | .000945 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332418 | |
| Mar 14, 2025 | Nitrite Plus Nitrate (as N) | 15 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1332418 | |
| Mar 14, 2025 | Nitrite Plus Nitrate (as N) | 1.4 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1332418 | |
| Mar 14, 2025 | Nitrite Plus Nitrate (as N) | 1.1 | mg/L | Effluent | Qualifying Storm Event | A4500NOH | 1332418 | |
| Mar 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332418 | |
| Mar 14, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332418 | |
| Mar 14, 2025 | Oil and Grease | 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1332418 | |
| Mar 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1332418 | |
| Mar 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1332418 | |
| Mar 14, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1332418 | |
| Mar 14, 2025 | Phosphorus, Total (as P) | .1 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1332418 | |
| Mar 14, 2025 | Phosphorus, Total (as P) | .1 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1332418 | |
| Mar 14, 2025 | Phosphorus, Total (as P) | .16 | mg/L | Effluent | Qualifying Storm Event | A4500PFH | 1332418 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 8.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332418 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332418 | |
| Mar 14, 2025 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1332418 | |
| Mar 14, 2025 | Zinc, Total | .057 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1332418 |
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 | 4 | 4 Violation · 0 Potential (preliminary) · 0 Dismissed | Jul 01, 2003 – Aug 15, 2015 | Oct 21, 2026 | All violations |
| Enforcement actions | 6 | 6 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 13, 2003 – Dec 11, 2015 | Oct 21, 2026 | All actions |
| Inspections | 8 | inspections, not findings | Jul 03, 2007 – Sep 10, 2019 | 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 (29 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Apr 21, 2008 | Enforcement actions | 345493 | NOV (Notice of Violation) | Active | |
| Jul 03, 2007 | Inspections | 1521259 | B Type compliance | — | No Further Action |
| Aug 13, 2003 | Enforcement actions | 250763 | 13267 Letter/Order (Water Code section 13267 letter or order) | Historical | UNKNOWN |
| Jul 01, 2003 | Violations | 246766 | 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.