Port San Luis Harbor District
Active WDID 3 40I009364 Avila Beach, San Luis Obispo County Region 3 · Central Coast
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Avila Beach, San Luis Obispo County
- Region 3 · Central Coast · Location · Statewide map
- Receiving water
- Pacific Ocean at Port San Luis Harbor (as reported by the facility)
- Evidence: not confirmed 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
- 3 waterbodies; 2 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 315 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample May 28, 2026 · 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
- 35.17137, -120.75648
- 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
- 3950 Avila Beach Drive 3950 Avila Beach Dr, Avila Beach 93424
- Regional Water Board
- 3 — Central Coast
HUC12 watershed Evidence: spatial
- Meadow Creek-Frontal Pacific Ocean HUC12 180600060705
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
- Port San Luis Harbor District
- Primary industry (SIC)
- 4493-Marinas
- Application ID
- 185703
- NOI processed
- Nov 15, 1992
- Last certified
- Aug 29, 2025
- Facility size
- 10 Acres
- Impervious area
- 90 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 185703 | Industrial | Active | Nov 15, 1992 | — | Aug 29, 2025 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Pacific Ocean at Port San Luis Harbor
- 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 |
|---|---|---|---|
| Port San Luis CAB3102501220080620152438 | 0 m | listed | 4 |
| Pacific Ocean Shoreline at Olde Port Beach (131 yards west of restrooms) CAC3102501220100404164852 | 905 m | listed | 2 |
| Pacific Ocean Shoreline at Olde Port Beach (at restrooms) CAC3102501220100404164219 | 970 m | not listed | 0 |
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.
315 distinct measurements across 12 parameters, most recent sample May 28, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 22 | 11 | 0 | Apr 21, 2026 | May 28, 2026 |
| 2024 | 11 | 11 | 0 | Feb 05, 2025 | Feb 05, 2025 |
| 2023 | 33 | 11 | 0 | Dec 18, 2023 | Mar 06, 2024 |
| 2022 | 11 | 11 | 0 | Dec 27, 2022 | Dec 27, 2022 |
| 2021 | 33 | 11 | 0 | Oct 25, 2021 | Dec 22, 2021 |
| 2020 | 22 | 11 | 0 | Dec 28, 2020 | Jan 27, 2021 |
| 2019 | 33 | 11 | 0 | Dec 04, 2019 | Mar 10, 2020 |
| 2018 | 44 | 11 | 0 | Oct 03, 2018 | Feb 27, 2019 |
| 2017 | 22 | 11 | 0 | Mar 02, 2018 | Mar 16, 2018 |
| 2016 | 60 | 12 | 0 | Dec 08, 2016 | Mar 21, 2017 |
| 2015 | 24 | 12 | 0 | Nov 02, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 28 | 0 | Nov 02, 2015 | May 28, 2026 | Results |
| Cadmium, Total | mg/L | 28 | 9 | Nov 02, 2015 | May 28, 2026 | Results |
| Chromium (Total) | mg/L | 28 | 3 | Nov 02, 2015 | May 28, 2026 | Results |
| Copper, Total | mg/L | 28 | 0 | Nov 02, 2015 | May 28, 2026 | Results |
| Iron, Total | mg/L | 28 | 0 | Nov 02, 2015 | May 28, 2026 | Results |
| Lead, Total | mg/L | 28 | 2 | Nov 02, 2015 | May 28, 2026 | Results |
| Nickel, Total | mg/L | 28 | 3 | Nov 02, 2015 | May 28, 2026 | Results |
| Oil and Grease | mg/L | 28 | 9 | Nov 02, 2015 | May 28, 2026 | Results |
| pH | SU | 28 | 0 | Nov 02, 2015 | May 28, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 28 | 0 | Nov 02, 2015 | May 28, 2026 | Results |
| Zinc, Total | mg/L | 28 | 1 | Nov 02, 2015 | May 28, 2026 | Results |
| Electrical Conductivity @ 25 Deg. C | umhos/cm | 7 | 7 | Nov 02, 2015 | Mar 21, 2017 | Results |
All results (315 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| May 28, 2026 | Aluminum, Total | .41 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1374570 | |
| May 28, 2026 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| May 28, 2026 | Chromium (Total) | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| May 28, 2026 | Copper, Total | .027 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| May 28, 2026 | Iron, Total | .69 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1374570 | |
| May 28, 2026 | Lead, Total | .001 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| May 28, 2026 | Nickel, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| May 28, 2026 | Oil and Grease | DNQ 1.6 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374570 | |
| May 28, 2026 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374570 | |
| May 28, 2026 | Total Suspended Solids (TSS) | 21 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374570 | |
| May 28, 2026 | Zinc, Total | .22 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374570 | |
| Apr 21, 2026 | Aluminum, Total | .26 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1374569 | |
| Apr 21, 2026 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Apr 21, 2026 | Chromium (Total) | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Apr 21, 2026 | Copper, Total | .019 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Apr 21, 2026 | Iron, Total | .44 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1374569 | |
| Apr 21, 2026 | Lead, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Apr 21, 2026 | Nickel, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Apr 21, 2026 | Oil and Grease | DNQ 1.5 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1374569 | |
| Apr 21, 2026 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1374569 | |
| Apr 21, 2026 | Total Suspended Solids (TSS) | 11 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1374569 | |
| Apr 21, 2026 | Zinc, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1374569 | |
| Feb 05, 2025 | Aluminum, Total | 1.3 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Cadmium, Total | ND 1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Chromium (Total) | .0048 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Copper, Total | .13 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Iron, Total | 2.1 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Lead, Total | .0072 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Nickel, Total | .0044 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Feb 05, 2025 | Oil and Grease | DNQ 1.7 | mg/L | Effluent | Qualifying Storm Event | E1664B | 1348284 | |
| Feb 05, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1348284 | |
| Feb 05, 2025 | Total Suspended Solids (TSS) | 31 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1348284 | |
| Feb 05, 2025 | Zinc, Total | .046 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1348284 | |
| Mar 06, 2024 | Aluminum, Total | 3.9 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1290496 | |
| Mar 06, 2024 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 06, 2024 | Chromium (Total) | .009 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 06, 2024 | Copper, Total | .093 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 06, 2024 | Iron, Total | 6.6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1290496 | |
| Mar 06, 2024 | Lead, Total | .007 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 06, 2024 | Nickel, Total | .016 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 06, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664B | 1290496 | |
| Mar 06, 2024 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1290496 | |
| Mar 06, 2024 | Total Suspended Solids (TSS) | 124 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1290496 | |
| Mar 06, 2024 | Zinc, Total | .06 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290496 | |
| Mar 01, 2024 | Aluminum, Total | 1.6 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1290486 | |
| Mar 01, 2024 | Cadmium, Total | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290486 | |
| Mar 01, 2024 | Chromium (Total) | ND | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290486 | |
| Mar 01, 2024 | Copper, Total | .21 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290486 | |
| Mar 01, 2024 | Iron, Total | .67 | mg/L | Effluent | Qualifying Storm Event | E200.7 | 1290486 | |
| Mar 01, 2024 | Lead, Total | .0063 | mg/L | Effluent | Qualifying Storm Event | E200.8 | 1290486 |
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 | Jul 15, 2025 – Jul 15, 2025 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Aug 08, 2025 – Aug 08, 2025 | Oct 21, 2026 | All actions |
| Inspections | 2 | inspections, not findings | Feb 26, 2019 – Mar 25, 2026 | Oct 21, 2026 | All inspections |
| Annual reports | 10 | 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 (14 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 25, 2026 | Annual reports | 1335911 | Annual report 2025 | — | |
| Mar 25, 2026 | Inspections | 2070996 | B Type compliance | Finalized | Additional Info Required |
| Sep 08, 2025 | Annual reports | 1294748 | Annual report 2024 | — | |
| Aug 08, 2025 | Enforcement actions | 457149 | NOV (Notice of Violation) | Active | |
| Jul 15, 2025 | Violations | 892620 | Late Report | Violation | Report |
| Aug 19, 2024 | Annual reports | 1243859 | Annual report 2023 | — | |
| Jul 15, 2022 | Annual reports | 1113310 | Annual report 2021 | — | |
| Jul 14, 2021 | Annual reports | 1069349 | Annual report 2020 | — | |
| Jun 25, 2020 | Annual reports | 986660 | Annual report 2019 | — | |
| Aug 15, 2019 | Annual reports | 954241 | Annual report 2018 | — | |
| Feb 26, 2019 | Inspections | 2042276 | B Type compliance | — | Additional Info Required |
| Jul 16, 2018 | Annual reports | 939658 | Annual report 2017 | — | |
| Jul 14, 2017 | Annual reports | 878940 | Annual report 2016 | — | |
| Aug 09, 2016 | Annual reports | 842299 | 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 |
| 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.