Costco Wholesale Corporation
Active WDID 9 37I022776 National City, San Diego County Region 9 · San Diego
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- National City, San Diego County
- Region 9 · San Diego · Location · Statewide map
- Receiving water
- San Diego Bay (as reported by the facility)
- Evidence: identification corroborated San Diego Bay Details
- Identified receiving water on the 2026 303(d) list
- Yes · 3 Appendix A decisions, category 5 Evidence: State-published
- Describes the waterbody, not this facility · Waterbody profile
- 2026 Integrated Report waters within 1.0 km Evidence: geographic proximity
- 4 waterbodies; 4 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 252 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Dec 24, 2025 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 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
- 32.66303, -117.11519
- 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
- 1001 W 19th St, National City 91950
- Regional Water Board
- 9 — San Diego
HUC12 watershed Evidence: spatial
- San Diego Bay HUC12 180703041202
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
- Costco Wholesale Corporation
- Primary industry (SIC)
- 3851-Ophthalmic Goods
- Application ID
- 405980
- NOI processed
- Aug 10, 2010
- Last certified
- Feb 04, 2026
- Facility size
- 8.37 Acres
- Impervious area
- 100 %
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 405980 | Industrial | Active | Aug 10, 2010 | — | Feb 04, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- San Diego Bay
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: identification corroborated San Diego Bay CAB9101000019990210132422
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 335 m. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
San Diego Bay is on the 2026 Clean Water Act section 303(d) list (3 Appendix A decisions; category 5).
| Pollutant | Category | Listing decision | TMDL requirement | Decision ID |
|---|---|---|---|---|
| Mercury | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 128207 |
| PAHs (Polycyclic Aromatic Hydrocarbons) | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 127732 |
| PCBs (Polychlorinated biphenyls) | 5 | Do Not Delist from 303(d) list (associated with a USEPA accepted Advanced Restoration Plan) | 5R · San Diego Bay Sediment Cleanup and Source Control Alternative Restoration Plan | 170605 |
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. State Board adoption 2026-02-03; USEPA approval not confirmed. A listing describes the waterbody, not this facility. Waterbody profile.
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 |
|---|---|---|---|
| San Diego Bay CAB9101000019990210132422 | 335 m | listed | 3 |
| San Diego Bay Shoreline, North of 24th Street Marine Terminal CAB9083200019990210110421 | 479 m | listed | 2 |
| Paradise Creek, HSA 908.320 CAR9091200019991117092131 | 787 m | listed | 2 |
| San Diego Bay Shoreline, Seventh Street Channel CAB9083200019990210105829 | 995 m | listed | 2 |
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.
252 distinct measurements across 6 parameters, most recent sample Dec 24, 2025.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 6 | 3 | 0 | Dec 24, 2025 | Dec 24, 2025 |
| 2024 | 6 | 3 | 0 | Mar 11, 2025 | Mar 11, 2025 |
| 2023 | 6 | 3 | 0 | Feb 01, 2024 | Feb 01, 2024 |
| 2022 | 12 | 3 | 0 | Nov 08, 2022 | Jan 19, 2023 |
| 2021 | 12 | 3 | 0 | Oct 25, 2021 | Feb 15, 2022 |
| 2020 | 18 | 6 | 0 | Dec 28, 2020 | Jan 23, 2021 |
| 2019 | 16 | 4 | 0 | Nov 27, 2019 | Jan 17, 2020 |
| 2018 | 32 | 4 | 0 | Nov 29, 2018 | Feb 13, 2019 |
| 2017 | 48 | 6 | 0 | Nov 07, 2017 | Feb 27, 2018 |
| 2016 | 48 | 6 | 0 | Sep 20, 2016 | Feb 07, 2017 |
| 2015 | 48 | 6 | 0 | Sep 15, 2015 | Apr 07, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Oil and Grease | mg/L | 54 | 52 | Sep 15, 2015 | Dec 24, 2025 | Results |
| pH | SU | 54 | 0 | Sep 15, 2015 | Dec 24, 2025 | Results |
| Total Suspended Solids (TSS) | mg/L | 54 | 5 | Sep 15, 2015 | Dec 24, 2025 | Results |
| Zinc, Total | mg/L | 38 | 0 | Sep 15, 2015 | Dec 28, 2020 | Results |
| Total Dissolved Solids (TDS) | mg/L | 26 | 2 | Sep 15, 2015 | Dec 28, 2020 | Results |
| Turbidity | NTU | 26 | 0 | Sep 15, 2015 | Dec 28, 2020 | Results |
All results (252 distinct rows)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 24, 2025 | Oil and Grease | DNQ 3.3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1364096 | |
| Dec 24, 2025 | Oil and Grease | DNQ 2.5 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1364096 | |
| Dec 24, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1364096 | |
| Dec 24, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1364096 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | 52 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364096 | |
| Dec 24, 2025 | Total Suspended Solids (TSS) | 41 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1364096 | |
| Mar 11, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1328311 | |
| Mar 11, 2025 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1328311 | |
| Mar 11, 2025 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1328311 | |
| Mar 11, 2025 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1328311 | |
| Mar 11, 2025 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328311 | |
| Mar 11, 2025 | Total Suspended Solids (TSS) | 23 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1328311 | |
| Feb 01, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1280598 | |
| Feb 01, 2024 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1280598 | |
| Feb 01, 2024 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1280598 | |
| Feb 01, 2024 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1280598 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 2.5 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1280598 | |
| Feb 01, 2024 | Total Suspended Solids (TSS) | 19 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1280598 | |
| Jan 19, 2023 | Oil and Grease | DNQ 3 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1225466 | |
| Jan 19, 2023 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1225466 | |
| Jan 19, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1225466 | |
| Jan 19, 2023 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Field | 1225466 | |
| Jan 19, 2023 | Total Suspended Solids (TSS) | 9.6 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1225466 | |
| Jan 19, 2023 | Total Suspended Solids (TSS) | 13 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1225466 | |
| Nov 08, 2022 | Oil and Grease | DNQ 1.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216462 | |
| Nov 08, 2022 | Oil and Grease | DNQ 2 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1216462 | |
| Nov 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216462 | |
| Nov 08, 2022 | pH | 7 | SU | Effluent | Qualifying Storm Event | pH_Field | 1216462 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 20 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216462 | |
| Nov 08, 2022 | Total Suspended Solids (TSS) | 150 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1216462 | |
| Feb 15, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1178532 | |
| Feb 15, 2022 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1178532 | |
| Feb 15, 2022 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1178532 | |
| Feb 15, 2022 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1178532 | |
| Feb 15, 2022 | Total Suspended Solids (TSS) | 65 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1178532 | |
| Feb 15, 2022 | Total Suspended Solids (TSS) | 120 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1178532 | |
| Oct 25, 2021 | Oil and Grease | DNQ 3.4 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1168575 | |
| Oct 25, 2021 | Oil and Grease | DNQ 2.8 | mg/L | Effluent | Qualifying Storm Event | E1664A | 1168575 | |
| Oct 25, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1168575 | |
| Oct 25, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1168575 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 15 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1168575 | |
| Oct 25, 2021 | Total Suspended Solids (TSS) | 24 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1168575 | |
| Jan 23, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1141502 | |
| Jan 23, 2021 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1141502 | |
| Jan 23, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1141502 | |
| Jan 23, 2021 | pH | 6 | SU | Effluent | Qualifying Storm Event | pH_Paper | 1141502 | |
| Jan 23, 2021 | Total Suspended Solids (TSS) | 6.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1141502 | |
| Jan 23, 2021 | Total Suspended Solids (TSS) | 5.4 | mg/L | Effluent | Qualifying Storm Event | A2540D | 1141502 | |
| Dec 28, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1138940 | |
| Dec 28, 2020 | Oil and Grease | ND | mg/L | Effluent | Qualifying Storm Event | E1664A | 1138940 |
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 01, 2011 – Jul 01, 2011 | Oct 21, 2026 | All violations |
| Enforcement actions | 1 | 1 issued · 0 draft · 0 withdrawn, rescinded or superseded | Jul 04, 2011 – Jul 04, 2011 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Dec 27, 2011 – Dec 27, 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 (14 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2026 | Annual reports | 1337690 | Annual report 2025 | — | |
| Jul 08, 2025 | Annual reports | 1296614 | Annual report 2024 | — | |
| Jul 15, 2024 | Annual reports | 1245833 | Annual report 2023 | — | |
| Jul 06, 2023 | Annual reports | 1191961 | Annual report 2022 | — | |
| Jul 12, 2022 | Annual reports | 1115578 | Annual report 2021 | — | |
| Jun 21, 2021 | Annual reports | 1063683 | Annual report 2020 | — | |
| Jun 30, 2020 | Annual reports | 980599 | Annual report 2019 | — | |
| Jul 10, 2019 | Annual reports | 956872 | Annual report 2018 | — | |
| Jul 11, 2018 | Annual reports | 942304 | Annual report 2017 | — | |
| Jun 29, 2017 | Annual reports | 881757 | Annual report 2016 | — | |
| Jul 13, 2016 | Annual reports | 845298 | Annual report 2015 | — | |
| Dec 27, 2011 | Inspections | 2013604 | Enforcement Follow-up | — | Additional Info Required |
| Jul 04, 2011 | Enforcement actions | 407133 | NOV (Notice of Violation) | Historical | R9-2011-0120 |
| Jul 01, 2011 | Violations | 846530 | Late Report | 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.