Harbor Generating Station
Active WDID 4 19I005196 Wilmington, Los Angeles County Region 4 · Los Angeles
At a glance
- Permit Evidence: SMARTS record
- Active Industrial
- Notice of Intent (WDID code I) · Permits and applications
- Location Evidence: facility-reported
- Wilmington, Los Angeles County
- Region 4 · Los Angeles · Location · Statewide map
- Receiving water
- Los Angeles Harbor (as reported by the facility)
- Evidence: candidate, awaiting review 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
- 1 waterbody; 1 on the 2026 303(d) list
- Proximity only; not a discharge pathway · Nearby waterbodies
- Monitoring results Evidence: facility-reported
- 5,103 distinct results, 11 reporting years (2015 to 2025)
- Most recent sample Feb 19, 2026 · Monitoring
- Compliance and enforcement records Evidence: SMARTS record
- 1 inspection · 2 violation records · 2 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
- 33.77056, -118.2656
- Precision
- 4 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
- 161 Island, Wilmington 90744
- Regional Water Board
- 4 — Los Angeles
HUC12 watershed Evidence: spatial
- Long Beach Harbor HUC12 180701060701
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
- Los Angeles Department of Water and Power Power
- Primary industry (SIC)
- 4911-Electric Services
- Application ID
- 189491
- NOI processed
- Apr 09, 1992
- Last certified
- Sep 21, 2026
- Facility size
- 20.5 Acres
Retrieved from SMARTS Oct 20, 2026. Verify against SMARTS before relying on it.
Permit history
| Application | Type | Status | Processed | Terminated | Certified |
|---|---|---|---|---|---|
| 189491 | Industrial | Active | Apr 09, 1992 | — | Sep 21, 2026 |
Every storm water application SMARTS records for this WDID, newest first (1).
Receiving water
- Reported by the facility Evidence: facility-reported
- Los Angeles Harbor
- Discharges directly / indirectly
- N / Y (as answered in the permit application)
Evidence: not confirmed Evidence: candidate, awaiting review Awaiting review
Receiving-water text as reported by the discharger in SMARTS; no waterbody identification has been confirmed.
Why it is not confirmed (1)
- C1 name is only a prefix of official names
4 official waterbodies share this name; none is assigned without review.
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 |
|---|---|---|---|
| Los Angeles - Long Beach Inner Harbor CAB4051200020050207122133 | 589 m | listed | 8 |
Waterbodies within 1.0 km of the reported facility location. Method proximity/1.
SMARTS TMDL records Evidence: SMARTS-reported
SMARTS TMDL record as reported for this facility; it is not a determination that the TMDL applies to the facility.
| TMDL | Waterbody (as reported) | Parameter | Limit | Type | Period | Due | Discharges to TMDL water |
|---|---|---|---|---|---|---|---|
| Los Angeles Harbor Bacteria | Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel) | Enterococci MPN | 104 MPN/100 mL | TMDL NAL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles Harbor Bacteria | Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel) | Fecal Coliform | 400 MPN/100 mL | TMDL NAL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles Harbor Bacteria | Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel) | Total Coliform | 1000 MPN/100 mL | TMDL NAL instantaneous | FINAL | 2020-07-01 | Y |
| Los Angeles Harbor Bacteria | Los Angeles Harbor (Inner Cabrillo Beach and Main Ship Channel) | Total Coliform | 10000 MPN/100 mL | TMDL NAL instantaneous | FINAL | 2021-07-01 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Copper, Total | .0058 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Lead, Total | .221 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
| R4 - Los Angeles and Long Beach Harbor Waters TMDL | R4 - Greater Los Angeles/Long Beach Harbor Waters | Zinc, Total | .095 mg/L | TMDL NAL instantaneous | FINAL | 2032-05-05 | Y |
7 records. Links between these records and specific TMDL projects or listed waterbodies have not been reviewed and are not shown.
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.
5,103 distinct measurements across 27 parameters, most recent sample Feb 19, 2026.
By reporting year
| Reporting year (July–June) | Distinct results | Parameters | With several versions | First sample | Last sample |
|---|---|---|---|---|---|
| 2025 | 342 | 23 | 0 | Oct 14, 2025 | Feb 19, 2026 |
| 2024 | 230 | 23 | 0 | Feb 13, 2025 | Mar 05, 2025 |
| 2023 | 418 | 23 | 0 | Aug 20, 2023 | Apr 05, 2024 |
| 2022 | 780 | 20 | 0 | Dec 02, 2022 | May 04, 2023 |
| 2021 | 500 | 20 | 0 | Oct 25, 2021 | Mar 28, 2022 |
| 2020 | 200 | 20 | 0 | Dec 28, 2020 | Mar 10, 2021 |
| 2019 | 280 | 20 | 0 | Nov 20, 2019 | Mar 12, 2020 |
| 2018 | 640 | 21 | 0 | Nov 22, 2018 | Mar 06, 2019 |
| 2017 | 284 | 26 | 0 | Jan 09, 2018 | Mar 22, 2018 |
| 2016 | 1,045 | 21 | 0 | Nov 20, 2016 | Feb 18, 2017 |
| 2015 | 384 | 24 | 0 | Jan 05, 2016 | Mar 06, 2016 |
By parameter
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Aluminum, Total | mg/L | 244 | 8 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Ammonia, Total (as N) | mg/L | 244 | 76 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Chemical Oxygen Demand (COD) | mg/L | 244 | 10 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Iron, Total | mg/L | 244 | 5 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Magnesium, Total | mg/L | 244 | 8 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Mercury, Total | ug/L | 244 | 157 | Jan 05, 2016 | Feb 19, 2026 | Results |
| pH | SU | 244 | 0 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Phosphorus, Total (as P) | mg/L | 244 | 6 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Selenium, Total | mg/L | 244 | 138 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Cadmium, Total | mg/L | 243 | 54 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Copper, Total | mg/L | 243 | 25 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Cyanide, Total (as CN) | mg/L | 243 | 203 | Jan 05, 2016 | Feb 19, 2026 | Results |
Show 16 more parameters
| Parameter | Units | Measurements | Below detection | First sample | Last sample | Results |
|---|---|---|---|---|---|---|
| Nickel, Total | mg/L | 243 | 19 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Silver, Total | mg/L | 243 | 157 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Total Suspended Solids (TSS) | mg/L | 243 | 9 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Zinc, Total | mg/L | 243 | 0 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Arsenic, Total | mg/L | 242 | 49 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Oil and Grease | mg/L | 242 | 136 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Lead, Total | mg/L | 241 | 1 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Nitrite Plus Nitrate (as N) | mg/L | 222 | 0 | Jan 05, 2016 | Feb 19, 2026 | Results |
| BOD5 @ 20 Deg. C, Percent Removal | mg/L | 54 | 17 | Jan 05, 2016 | Feb 03, 2017 | Results |
| Enterococci MPN | MPN/100 mL | 54 | 0 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Fecal Coliform | MPN/100 mL | 54 | 11 | Jan 05, 2016 | Feb 19, 2026 | Results |
| Total Coliform | MPN/100 mL | 54 | 2 | Jan 05, 2016 | Feb 19, 2026 | Results |
| 2,4-DDT | ug/L | 11 | 11 | Jan 09, 2018 | Mar 22, 2018 | Results |
| BOD5 @ 20 Deg. C, Percent Removal | % | 11 | 1 | Jan 09, 2018 | Mar 22, 2018 | Results |
| Polychlorinated Biphenyls (PCBs), Sum | ug/L | 11 | 9 | Jan 09, 2018 | Mar 22, 2018 | Results |
| Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) | mg/L | 10 | 0 | Nov 29, 2018 | Dec 06, 2018 | Results |
Total Coliform results (54 distinct rows, show all)
| Sample date | Parameter | Result | Units | Location type | Event | Method | Report | Versions |
|---|---|---|---|---|---|---|---|---|
| Feb 19, 2026 | Total Coliform | 1000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377368 | |
| Feb 19, 2026 | Total Coliform | 7700 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377368 | |
| Feb 19, 2026 | Total Coliform | 24000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377368 | |
| Feb 19, 2026 | Total Coliform | 2900 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377368 | |
| Feb 19, 2026 | Total Coliform | 130000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377368 | |
| Nov 14, 2025 | Total Coliform | 3474 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1377209 | |
| Oct 14, 2025 | Total Coliform | 980 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1357600 | |
| Oct 14, 2025 | Total Coliform | 2260 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1357600 | |
| Oct 14, 2025 | Total Coliform | 3300 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1357600 | |
| Oct 14, 2025 | Total Coliform | 140 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1357600 | |
| Oct 14, 2025 | Total Coliform | 3960 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1357600 | |
| Mar 05, 2025 | Total Coliform | 5800 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1327640 | |
| Mar 05, 2025 | Total Coliform | 5800 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1327640 | |
| Mar 05, 2025 | Total Coliform | 39000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1327640 | |
| Mar 05, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1327640 | |
| Mar 05, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1327640 | |
| Feb 13, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1326602 | |
| Feb 13, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1326602 | |
| Feb 13, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1326602 | |
| Feb 13, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1326602 | |
| Feb 13, 2025 | Total Coliform | 2419.6 | MPN/100 mL | Effluent | Qualifying Storm Event | A9222B | 1326602 | |
| Apr 05, 2024 | Total Coliform | 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1288183 | |
| Apr 05, 2024 | Total Coliform | 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1288183 | |
| Apr 05, 2024 | Total Coliform | 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1288183 | |
| Apr 05, 2024 | Total Coliform | 3500 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1288183 | |
| Apr 05, 2024 | Total Coliform | 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1288183 | |
| Jan 03, 2024 | Total Coliform | 35000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1274475 | |
| Mar 22, 2018 | Total Coliform | 2400 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1002834 | |
| Mar 22, 2018 | Total Coliform | 2400 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1002834 | |
| Mar 22, 2018 | Total Coliform | 9200 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1002834 | |
| Mar 22, 2018 | Total Coliform | 230 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 1002834 | |
| Jan 09, 2018 | Total Coliform | 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | > 16000 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | 790 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | 1700 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | 2400 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | 170 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Jan 09, 2018 | Total Coliform | 79 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221B | 997684 | |
| Mar 06, 2016 | Total Coliform | 70 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | 300 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | 2400 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | ND 0 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | 230 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | 140 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | ND 0 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Mar 06, 2016 | Total Coliform | 700 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Jan 05, 2016 | Total Coliform | 260 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Jan 05, 2016 | Total Coliform | 460 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Jan 05, 2016 | Total Coliform | 260 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 | |
| Jan 05, 2016 | Total Coliform | 80 | MPN/100 mL | Effluent | Qualifying Storm Event | A9221BE | 870842 |
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 | 2 | 2 Violation · 0 Potential (preliminary) · 0 Dismissed | Oct 31, 2008 – Mar 14, 2021 | Oct 21, 2026 | All violations |
| Enforcement actions | 2 | 1 issued · 0 draft · 1 withdrawn, rescinded or superseded | Jun 10, 2010 – Apr 10, 2024 | Oct 21, 2026 | All actions |
| Inspections | 1 | inspections, not findings | Apr 16, 2013 – Apr 16, 2013 | 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 (16 records, newest first)
| Date | Record | ID | Type or purpose | Status as published | Detail |
|---|---|---|---|---|---|
| Jul 15, 2026 | Annual reports | 1333977 | Annual report 2025 | — | |
| Jul 11, 2025 | Annual reports | 1292741 | Annual report 2024 | — | |
| Jul 15, 2024 | Annual reports | 1241733 | Annual report 2023 | — | |
| Apr 10, 2024 | Enforcement actions | 453230 | EPL (Expedited Payment Letter) | Rescinded | R4-2024-0046 |
| Jul 17, 2023 | Annual reports | 1187653 | Annual report 2022 | — | |
| Jul 15, 2022 | Annual reports | 1110898 | Annual report 2021 | — | |
| Jul 15, 2021 | Annual reports | 1066822 | Annual report 2020 | — | |
| Mar 14, 2021 | Violations | 888879 | Late Report | Violation | Report |
| Jul 15, 2020 | Annual reports | 983964 | Annual report 2019 | — | |
| Jul 15, 2019 | Annual reports | 951457 | Annual report 2018 | — | |
| Jul 16, 2018 | Annual reports | 936863 | Annual report 2017 | — | |
| Jul 17, 2017 | Annual reports | 876000 | Annual report 2016 | — | |
| Jul 14, 2016 | Annual reports | 845286 | Annual report 2015 | — | |
| Apr 16, 2013 | Inspections | 2018594 | B Type compliance | — | Follow-up Inspection Needed |
| Jun 10, 2010 | Enforcement actions | 403952 | SEL (Staff Enforcement Letter) | Historical | |
| Oct 31, 2008 | Violations | 843472 | Deficient BMP Implementation | 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.