Hanson Aggregates
Terminated WDID 3 40I020155 Nipomo, San Luis Obispo County Region 3 · Central Coast
Watershed, receiving-water, nearby-water and TMDL information is temporarily unavailable. Permit and monitoring records below are complete.
At a glance
- Permit Evidence: SMARTS record
- Terminated Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Nipomo, San Luis Obispo County
- Region 3 · Central Coast · Location · Statewide map
- Receiving water
- Santa Maria River (as reported by the facility)
- Evidence: identification unavailable 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
- Evidence: unavailable
- Monitoring results Evidence: facility-reported
- None in the current exports
- Compliance and enforcement records Evidence: SMARTS record
- 0 inspections · 0 violation records · 0 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
34.99533, -120.43821
Coordinates as reported in the permit application; not a discharge point.
- Facility address
- 305 Cuyama Lane, Nipomo 93444
- Regional Water Board
- 3 — Central Coast
HUC12 watershed Evidence: spatial
Unavailable.
Permits and applications Evidence: SMARTS record
Current permit record
- Permit type
- Industrial
- Application type
- Notice of Intent (WDID code I)
- Status
- Terminated
- Operator
- Hanson Aggregates
- Primary industry (SIC)
- 3273-Ready-Mixed Concrete
- Application ID
- 298623
- NOI processed
- Mar 21, 2006
- Termination effective
- Aug 02, 2023
- Last certified
- Jan 24, 2023
- Facility size
- 3.1 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 298623 | Industrial | Terminated | Mar 21, 2006 | Aug 02, 2023 | Jan 24, 2023 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Santa Maria River
Evidence: unavailable Match status unavailable.
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.
Evidence: unavailable Unavailable.
SMARTS TMDL records Evidence: SMARTS-reported
Evidence: unavailable Unavailable.
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.
No industrial monitoring results for this permit are in the current exports.
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 | 0 | 0 Violation · 0 Potential (preliminary) · 0 Dismissed | — | Oct 21, 2026 | |
| Enforcement actions | 0 | 0 issued · 0 draft · 0 withdrawn, rescinded or superseded | — | Oct 21, 2026 | |
| Inspections | 0 | inspections, not findings | — | Oct 21, 2026 | |
| Annual reports | 8 | certified reports (contents not shown) | 2015 – 2022 | 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 (8 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 10, 2023 | Annual reports | 1188060 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1111337 | Annual report 2021 | — | |
| Jul 09, 2021 | Annual reports | 1067284 | Annual report 2020 | — | |
| Jul 08, 2020 | Annual reports | 984453 | Annual report 2019 | — | |
| Jun 12, 2019 | Annual reports | 951960 | Annual report 2018 | — | |
| Jul 11, 2018 | Annual reports | 937371 | Annual report 2017 | — | |
| May 31, 2017 | Annual reports | 876531 | Annual report 2016 | — | |
| Jul 05, 2016 | Annual reports | 841844 | Annual report 2015 | — |
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 |
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.