Dynamic Precast Co Inc
Terminated WDID 1 49I019589 Santa Rosa, Sonoma County Region 1 · North Coast
At a glance
- Permit Evidence: SMARTS record
- Terminated 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
- 100 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Jan 31, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 2 inspections · 1 violation record · 1 enforcement action
- 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
- 38.41174, -122.79377
- 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
- 5300 Sebastopol Rd, Santa Rosa 95407
- Regional Water Board
- 1 — North Coast
HUC12 watershed Evidence: spatial
- Lower Laguna De Santa Rosa HUC12 180101100704
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
- Terminated
- Operator
- Dynamic Precast
- Primary industry (SIC)
- 3272-Concrete Products, Except Block and Brick
- Application ID
- 272495
- NOI processed
- Jun 23, 2005
- Termination effective
- Nov 14, 2024
- Last certified
- Jun 10, 2015
- Facility size
- 1.3 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 272495 | Industrial | Terminated | Jun 23, 2005 | Nov 14, 2024 | Jun 10, 2015 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Gravenstein Creek
- 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 | 61 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.
100 distinct measurements across 5 parameters, most recent sample Jan 31, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 10 | 5 | 0 | Dec 06, 2023 | Jan 31, 2024 |
| 2022 | 10 | 5 | 0 | Nov 08, 2022 | Feb 23, 2023 |
| 2021 | 10 | 5 | 0 | Nov 01, 2021 | Apr 21, 2022 |
| 2020 | 10 | 5 | 0 | Jan 04, 2021 | Mar 09, 2021 |
| 2019 | 10 | 5 | 0 | Dec 13, 2019 | Mar 24, 2020 |
| 2018 | 10 | 5 | 0 | Nov 27, 2018 | Feb 13, 2019 |
| 2017 | 10 | 5 | 0 | Jan 08, 2018 | Mar 02, 2018 |
| 2016 | 10 | 5 | 0 | Oct 24, 2016 | Feb 17, 2017 |
| 2015 | 20 | 5 | 0 | Dec 22, 2015 | Mar 10, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Diesel Oil | mg/L | 20 | 19 | Dec 22, 2015 | Jan 31, 2024 | Results |
| Iron, Total | mg/L | 20 | 1 | Dec 22, 2015 | Jan 31, 2024 | Results |
| Oil and Grease | mg/L | 20 | 15 | Dec 22, 2015 | Jan 31, 2024 | Results |
| pH | SU | 20 | 0 | Dec 22, 2015 | Jan 31, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 20 | 1 | Dec 22, 2015 | Jan 31, 2024 | Results |
All results (100 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Jan 31, 2024 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1281363 | |
| Jan 31, 2024 | Iron, Total | .74 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1281363 | |
| Jan 31, 2024 | Oil and Grease | DNQ 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281363 | |
| Jan 31, 2024 | pH | 7.05 | SU | Effluent | Qualifying Storm Event | pH_Field | 1281363 | |
| Jan 31, 2024 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281363 | |
| Dec 06, 2023 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1281362 | |
| Dec 06, 2023 | Iron, Total | .64 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1281362 | |
| Dec 06, 2023 | Oil and Grease | DNQ 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1281362 | |
| Dec 06, 2023 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1281362 | |
| Dec 06, 2023 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1281362 | |
| Feb 23, 2023 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1236934 | |
| Feb 23, 2023 | Iron, Total | DNQ .09 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1236934 | |
| Feb 23, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1236934 | |
| Feb 23, 2023 | pH | 7.69 | SU | Effluent | Qualifying Storm Event | pH_Field | 1236934 | |
| Feb 23, 2023 | Total Suspended Solids (TSS) | 3.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1236934 | |
| Nov 08, 2022 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1218217 | |
| Nov 08, 2022 | Iron, Total | .82 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1218217 | |
| Nov 08, 2022 | Oil and Grease | 1.9 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1218217 | |
| Nov 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1218217 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 25 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1218217 | |
| Apr 21, 2022 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1186413 | |
| Apr 21, 2022 | Iron, Total | .26 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186413 | |
| Apr 21, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186413 | |
| Apr 21, 2022 | pH | 7.54 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186413 | |
| Apr 21, 2022 | Total Suspended Solids (TSS) | 5.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186413 | |
| Nov 01, 2021 | Diesel Oil | .14 | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1186412 | |
| Nov 01, 2021 | Iron, Total | .69 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1186412 | |
| Nov 01, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1186412 | |
| Nov 01, 2021 | pH | 8.12 | SU | Effluent | Qualifying Storm Event | pH_Field | 1186412 | |
| Nov 01, 2021 | Total Suspended Solids (TSS) | 9.1 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1186412 | |
| Mar 09, 2021 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1153657 | |
| Mar 09, 2021 | Iron, Total | .46 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1153657 | |
| Mar 09, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1153657 | |
| Mar 09, 2021 | pH | 7.21 | SU | Effluent | Qualifying Storm Event | pH_Field | 1153657 | |
| Mar 09, 2021 | Total Suspended Solids (TSS) | 6.3 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1153657 | |
| Jan 04, 2021 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1153656 | |
| Jan 04, 2021 | Iron, Total | .49 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1153656 | |
| Jan 04, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1153656 | |
| Jan 04, 2021 | pH | 7.15 | SU | Effluent | Qualifying Storm Event | pH_Field | 1153656 | |
| Jan 04, 2021 | Total Suspended Solids (TSS) | 12 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1153656 | |
| Mar 24, 2020 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | SW8015B | 1108476 | |
| Mar 24, 2020 | Iron, Total | .86 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1108476 | |
| Mar 24, 2020 | Oil and Grease | 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1108476 | |
| Mar 24, 2020 | pH | 7.08 | SU | Effluent | Qualifying Storm Event | pH_Field | 1108476 | |
| Mar 24, 2020 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | 1108476 | ||
| Dec 13, 2019 | Diesel Oil | ND | mg/L | Effluent | Qualifying Storm Event | M8015 | 1100803 | |
| Dec 13, 2019 | Iron, Total | .3 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1100803 | |
| Dec 13, 2019 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1100803 | |
| Dec 13, 2019 | pH | 7.22 | SU | Effluent | Qualifying Storm Event | pH_Field | 1100803 | |
| Dec 13, 2019 | Total Suspended Solids (TSS) | 9.7 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1100803 |
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 | 1 | 1 Violation · 0 Potential (preliminary) · 0 Dismissed | Nov 20, 2009 – Nov 20, 2009 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jul 28, 2010 – Jul 28, 2010 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Aug 04, 2010 – Jul 20, 2017 | Oct 21, 2026 | All inspections |
| Annual reports | 10 | certified reports (contents not shown) | 2015 – 2024 | 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 (14 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Nov 14, 2024 | Annual reports | 1294057 | Annual report 2024 | — | |
| Jun 11, 2024 | Annual reports | 1243137 | Annual report 2023 | — | |
| Jul 13, 2023 | Annual reports | 1189133 | Annual report 2022 | — | |
| Jul 11, 2022 | Annual reports | 1112496 | Annual report 2021 | — | |
| Jul 13, 2021 | Annual reports | 1068500 | Annual report 2020 | — | |
| Jul 09, 2020 | Annual reports | 985750 | Annual report 2019 | — | |
| Jul 11, 2019 | Annual reports | 953298 | Annual report 2018 | — | |
| Jul 11, 2018 | Annual reports | 938714 | Annual report 2017 | — | |
| Jul 20, 2017 | Inspections | 2034444 | B Type compliance | — | No Further Action |
| Jul 06, 2017 | Annual reports | 877942 | Annual report 2016 | — | |
| Jul 11, 2016 | Annual reports | 843241 | Annual report 2015 | — | |
| Aug 04, 2010 | Inspections | 2008210 | B Type compliance | — | Follow-up Inspection Needed |
| Jul 28, 2010 | Enforcement actions | 402338 | SEL (Staff Enforcement Letter) | Historical | |
| Nov 20, 2009 | Violations | 842206 | Unauthorized NSWD | 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.