Naval Weapons Station Seal Beach
Active WDID 8 30I004651 Seal Beach, Orange County Region 8 · Santa Ana
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Seal Beach, Orange County
- Region 8 · Santa Ana · Location · Statewide map
- Receiving water
- Anaheim Bay (as reported by the facility)
- Evidence: identification corroborated Anaheim 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
- None
- Monitoring results Evidence: facility-reported
- 1,056 distinct results, 9 reporting years (2015 to 2023)
- Most recent sample Feb 20, 2024 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 7 inspections · 6 violation records · 11 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
- 33.746679, -118.09127
- 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
- 800 Seal Beach Blvd, Seal Beach 90740
- Regional Water Board
- 8 — Santa Ana
HUC12 watershed Evidence: spatial
- Anaheim Bay HUC12 180702010001
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
- NAVWPNSTASB
- Primary industry (SIC)
- 4491-Marine Cargo Handling
- Secondary SIC
- 3471-Electroplating, Plating, Polishing, Anodizing, and Coloring
- Application ID
- 208481
- NOI processed
- Apr 07, 1992
- Last certified
- Apr 09, 2026
- Facility size
- 5003 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 208481 | Industrial | Active | Apr 07, 1992 | — | Apr 09, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Anaheim Bay
- Discharges directly / indirectly
- Y / Y (as answered in the permit application)
Evidence: identification corroborated Anaheim Bay CAB8011100019990308101956
Receiving water reported by facility — waterbody identification corroborated by geographic evidence.
Nearest distance from the reported facility location: 1.0 km. Method receiving_water/2.
2026 Integrated Report status Evidence: State-published
Anaheim 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 |
|---|---|---|---|---|
| Nickel | 5 | List on 303(d) list (TMDL required list) | 5A | 69290 |
| PCBs (Polychlorinated biphenyls) | 5 | Do Not Delist from 303(d) list (TMDL required list) | 5A | 132400 |
| Toxicity | 5 | List on 303(d) list (TMDL required list) | 5A | 69325 |
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.
No 2026 Integrated Report waterbody lies within the proximity threshold of the reported location.
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.
1,056 distinct measurements across 101 parameters, most recent sample Feb 20, 2024.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2023 | 36 | 11 | 0 | Dec 22, 2023 | Feb 20, 2024 |
| 2022 | 38 | 12 | 0 | Nov 08, 2022 | Feb 24, 2023 |
| 2021 | 30 | 9 | 0 | Dec 14, 2021 | Dec 30, 2021 |
| 2020 | 24 | 10 | 0 | Jan 29, 2021 | Jan 29, 2021 |
| 2019 | 111 | 11 | 0 | Dec 04, 2019 | Mar 12, 2020 |
| 2018 | 74 | 10 | 0 | Nov 29, 2018 | Feb 13, 2019 |
| 2017 | 77 | 24 | 0 | Mar 22, 2018 | May 01, 2018 |
| 2016 | 280 | 86 | 0 | Dec 21, 2016 | Feb 03, 2017 |
| 2015 | 386 | 88 | 0 | Sep 15, 2015 | Jan 05, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| pH | SU | 64 | 0 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Total Suspended Solids (TSS) | mg/L | 64 | 4 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Oil and Grease | mg/L | 55 | 41 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Iron, Total | mg/L | 38 | 0 | Jan 05, 2016 | Dec 22, 2023 | Results |
| Lead, Total | mg/L | 38 | 7 | Sep 15, 2015 | Dec 22, 2023 | Results |
| Zinc, Total | mg/L | 35 | 0 | Sep 15, 2015 | Jan 10, 2023 | Results |
| Copper, Total | mg/L | 32 | 0 | Sep 15, 2015 | Feb 13, 2019 | Results |
| Aluminum, Total | mg/L | 29 | 0 | Jan 05, 2016 | Dec 22, 2023 | Results |
| Ethylene glycol | mg/L | 23 | 22 | Sep 15, 2015 | Feb 20, 2024 | Results |
| Nickel, Total | mg/L | 19 | 8 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Selenium, Total | mg/L | 19 | 19 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Silver, Total | mg/L | 19 | 19 | Sep 15, 2015 | Mar 22, 2018 | Results |
Show 96 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Total Organic Carbon (TOC) | mg/L | 19 | 0 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Arsenic, Total | mg/L | 17 | 15 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Cadmium, Total | mg/L | 17 | 14 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Chromium (Total) | mg/L | 17 | 10 | Sep 15, 2015 | Mar 22, 2018 | Results |
| Aluminum, Total | ug/L | 15 | 0 | Dec 04, 2019 | Mar 12, 2020 | Results |
| Copper, Total | ug/L | 15 | 0 | Dec 04, 2019 | Mar 12, 2020 | Results |
| Mercury, Total | ug/L | 15 | 15 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Zinc, Total | ug/L | 15 | 0 | Dec 04, 2019 | Mar 12, 2020 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 14 | 1 | Sep 15, 2015 | Jan 29, 2021 | Results |
| Zinc, Total Recoverable | ug/L | 14 | 0 | Jan 29, 2021 | Feb 20, 2024 | Results |
| Aluminum, Total Recoverable | ug/L | 13 | 0 | Jan 29, 2021 | Feb 20, 2024 | Results |
| Iron, Total Recoverable | mg/L | 13 | 0 | Jan 29, 2021 | Feb 20, 2024 | Results |
| Lead, Total Recoverable | ug/L | 13 | 0 | Jan 29, 2021 | Feb 20, 2024 | Results |
| Polychlorinated Biphenyls (PCBs), Sum | ug/L | 11 | 11 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Lead, Total | ug/L | 7 | 0 | Dec 04, 2019 | Mar 12, 2020 | Results |
| Mercury, Total | mg/L | 7 | 7 | Mar 22, 2018 | May 01, 2018 | Results |
| 1,2,4-Trichlorobenzene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 1,2-Dichlorobenzene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 1,3-Dichlorobenzene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4,5-Trichlorophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4,6-Trichlorophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4-Dichlorophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4-Dimethylphenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4-Dinitrophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,4-Dinitrotoluene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2,6-Dinitrotoluene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Chloronaphthalene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Methyl-4,6-Dinitrophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Methylnaphthalene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Nitroaniline | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Nitrophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 3,3-Dichlorobenzidine | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 3-Methyl-4-Chlorophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 3-Methylphenol/4-Methylphenol Coelution | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 3-Nitroaniline | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 4-Bromophenyl Phenyl Ether | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 4-Chloroaniline | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 4-Chlorophenyl Phenyl Ether | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 4-Nitroaniline | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 4-Nitrophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Acenaphthene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Acenaphthylene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Anthracene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzo(a)anthracene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzo(b)fluoranthene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzo(ghi)perylene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzo(k)fluoranthene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Bis (2-Chloroethoxy) Methane | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Bis (2-Chloroethyl) Ether | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Bis (2-Chloroisopropyl) Ether | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Bis (2-Ethylhexyl) Phthalate | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Butylbenzyl Phthalate | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Chrysene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Di-n-butyl Phthalate | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Di-n-octyl Phthalate | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Dibenzo(a,h)anthracene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Dibenzofuran | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Fluoranthene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Fluorene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Hexachlorobenzene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Hexachlorobutadiene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Hexachlorocyclopentadiene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Hexachloroethane | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Indeno (1,2,3-cd) Pyrene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Iron, Total | ug/L | 6 | 0 | Dec 04, 2019 | Dec 04, 2019 | Results |
| Isophorone | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| N-Nitrosodi-n-Propylamine | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Naphthalene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Nitrobenzene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Pentachlorophenol | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Phenanthrene | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Phenol, Single Compound | ug/L | 6 | 6 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 1,4-Dichlorobenzene | ug/L | 5 | 5 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Methylphenol | ug/L | 5 | 5 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Diethyl Phthalate | ug/L | 5 | 5 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Dimethyl Phthalate | ug/L | 5 | 5 | Sep 15, 2015 | Feb 03, 2017 | Results |
| N-Nitrosodiphenylamine | ug/L | 5 | 5 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Pyrene | ug/L | 5 | 5 | Sep 15, 2015 | Dec 21, 2016 | Results |
| 2-Chlorophenol | ug/L | 4 | 4 | Sep 15, 2015 | Dec 21, 2016 | Results |
| Benzo(a)pyrene | ug/L | 4 | 4 | Sep 15, 2015 | Jan 05, 2016 | Results |
| 1,2-Diphenylhydrazine | ug/L | 3 | 3 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzidine | ug/L | 3 | 3 | Sep 15, 2015 | Feb 03, 2017 | Results |
| N-Nitrosodimethylamine | ug/L | 3 | 3 | Sep 15, 2015 | Feb 03, 2017 | Results |
| 2-Chlorophenol-d4 | ug/L | 2 | 2 | Sep 15, 2015 | Feb 03, 2017 | Results |
| Benzo(e)pyrene | mg/L | 2 | 2 | Dec 21, 2016 | Feb 03, 2017 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 2 | 2 | Jan 29, 2021 | Dec 30, 2021 | Results |
| 1,4-Dichlorobenzene-d4 | ug/L | 1 | 1 | Sep 15, 2015 | Sep 15, 2015 | Results |
| N-Nitrosodiethylamine | mg/L | 1 | 1 | Sep 15, 2015 | Sep 15, 2015 | Results |
| Nitrite Plus Nitrate (as N) | ug/L | 1 | 1 | Dec 04, 2019 | Dec 04, 2019 | Results |
| PCB-1016 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1221 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1232 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1242 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1248 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1254 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
| PCB-1260 | ug/L | 1 | 1 | Mar 22, 2018 | Mar 22, 2018 | Results |
2-Chlorophenol results (4 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Dec 21, 2016 | 2-Chlorophenol | ND | ug/L | Effluent | Qualifying Storm Event | 948502 | ||
| Jan 05, 2016 | 2-Chlorophenol | ND | ug/L | Effluent | Qualifying Storm Event | 864836 | ||
| Jan 05, 2016 | 2-Chlorophenol | ND | ug/L | Effluent | Qualifying Storm Event | 864836 | ||
| Sep 15, 2015 | 2-Chlorophenol | ND | ug/L | Effluent | Qualifying Storm Event | 855905 |
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 | 6 | 6 Violation · 0 Potential (preliminary) · 0 Dismissed | Apr 13, 2004 – Apr 03, 2019 | Oct 21, 2026 | All violations |
| Enforcement actions | 11 | 10 issued · 0 draft · 1 withdrawn, rescinded or superseded | Apr 13, 2004 – Apr 14, 2020 | Oct 21, 2026 | All actions |
| Inspections | 7 | inspections, not findings | May 12, 2000 – Sep 01, 2022 | 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 (35 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jun 24, 2026 | Annual reports | 1337400 | Annual report 2025 | — | |
| May 29, 2025 | Annual reports | 1296315 | Annual report 2024 | — | |
| Jun 17, 2024 | Annual reports | 1245518 | Annual report 2023 | — | |
| Jun 07, 2023 | Annual reports | 1191631 | Annual report 2022 | — | |
| Sep 01, 2022 | Inspections | 2057826 | B Type compliance | Finalized | No Further Action |
| Jun 07, 2022 | Annual reports | 1115215 | Annual report 2021 | — | |
| Jun 21, 2021 | Annual reports | 1063309 | Annual report 2020 | — | |
| Jul 10, 2020 | Annual reports | 980192 | Annual report 2019 | — | |
| Apr 14, 2020 | Enforcement actions | 436823 | Verbal Communication | Historical | |
| Jul 09, 2019 | Annual reports | 956449 | Annual report 2018 | — | |
| Jul 01, 2019 | Enforcement actions | 433529 | Verbal Communication | Historical | |
| Apr 03, 2019 | Enforcement actions | 433003 | SEL (Staff Enforcement Letter) | Historical | |
| Apr 03, 2019 | Violations | 869857 | Late Report | Violation | Report |
| Jun 29, 2018 | Annual reports | 941876 | Annual report 2017 | — | |
| May 07, 2018 | Inspections | 2038097 | B Type compliance | — | No Further Action |
| Mar 01, 2018 | Enforcement actions | 429316 | SEL (Staff Enforcement Letter) | Historical | |
| Mar 01, 2018 | Enforcement actions | 429317 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Enforcement actions | 428542 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Enforcement actions | 428557 | SEL (Staff Enforcement Letter) | Historical | |
| Jan 31, 2018 | Violations | 865625 | Late Report | Violation | Report |
| Jan 31, 2018 | Violations | 865641 | Late Report | Violation | Report |
| Jul 14, 2017 | Annual reports | 881282 | Annual report 2016 | — | |
| Jul 08, 2016 | Annual reports | 841117 | Annual report 2015 | — | |
| Mar 23, 2015 | Enforcement actions | 418555 | Verbal Communication | Historical | |
| Mar 17, 2015 | Inspections | 2025099 | B Type compliance | — | No Further Action |
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.