Compton Creek
2026 303(d) list Waterbody ID CAR4051501019990202111430 River & Stream Region 4 · Los Angeles
At a glance
- 2026 listing Evidence: State-published
- On the 2026 303(d) list · 8 Appendix A decisions
- Category 5: a TMDL is required
- What a listing means
- Pollutants and stressors
- 8 pollutants in 4 Appendix A categories
- Metals (4) · Other Cause (2) · Pathogens (1) · Trash (1)
- Listing decisions
- TMDL information Evidence: State-published
- 8 decisions with a TMDL requirement status; 6 name a TMDL project
- Status codes as published: 5A, 5B
- TMDL details
- Industrial stormwater facilities
- 77 report it as their receiving water Evidence: identification corroborated
- 272 within 1 km Evidence: geographic proximity
- Neither count establishes a discharge · Facilities
What a 303(d) listing means
The Clean Water Act section 303(d) list names waters that do not meet water quality standards for one or more pollutants or stressors. California publishes it in the Integrated Report; this page shows the 2026 decisions from Appendix A as published.
- A listing describes the condition of the waterbody. It does not identify which sources cause the impairment, and it does not by itself place a requirement on any particular facility.
- Listed waters do not all have the same status. The Integrated Report category says how an impairment is being addressed: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant. This waterbody's decisions are in category 5.
- TMDL requirement status values (such as 5A or 5B) are shown exactly as published in Appendix A.
2026 listing status Evidence: State-published
- On the 2026 303(d) list
- Yes
- Appendix A decisions
- 8
- Integrated Report category
- 5 (a TMDL is required)
- Listing cycle
- 2026
- State Board adoption
- 2026-02-03 (Resolution 2026-0005)
- USEPA approval
- not confirmed — submittal letter to USEPA published; no approval found on the report page (checked 2026-10-22)
- Regional Water Board
- 4 — Los Angeles
Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. A listing describes the condition of this waterbody, not of any facility.
Location
Loading the waterbody shape…
Open this area on the statewide map · Browse impaired waters
Listing decisions and pollutants Evidence: State-published
Grouped by the Pollutant Category published in Appendix A. Pollutant names, categories and decisions are exactly as published.
Metals (4 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Aluminum | Metals | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 153906 |
| Copper | Metals | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Original | A Source Unknown | 89976 |
| Lead | Metals | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Original | A Source Unknown | 70408 |
| Zinc | Metals | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Revised | A Source Unknown | 138332 |
Other Cause (2 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Benthic Community Effects | Other Cause | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 153905 |
| pH | Other Cause | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Original | Nonpoint Source Point Source | 90033 |
Pathogens (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Indicator Bacteria | Pathogens | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Revised | See TMDL documentation | 150286 |
Trash (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Trash | Trash | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | Original | Nonpoint Source | 70557 |
TMDL information Evidence: State-published
| Pollutant | TMDL requirement status | TMDL project | Priority | USEPA approval of TMDL | Expected attainment |
|---|---|---|---|---|---|
| Aluminum | 5A | — | Low | — | — |
| Benthic Community Effects | 5A | — | Low | — | — |
| Copper | 5B | Los Angeles River Metals (13) | — | 2008-10-29 | — |
| Indicator Bacteria | 5B | Los Angeles River Pathogens (15) | — | 2012-03-23 | — |
| Lead | 5B | Los Angeles River Metals (13) | — | 2005-12-22 | — |
| pH | 5B | Los Angeles River Nitrogen (11) | — | 2004-03-18 | — |
| Trash | 5B | Los Angeles River Trash (12) | — | 2008-07-24 | — |
| Zinc | 5B | Los Angeles River Metals (13) | — | 2008-10-29 | — |
This is TMDL information for the waterbody. It does not establish that a TMDL applies to any particular facility. Facility-specific TMDL requirements recorded in SMARTS appear on facility pages and are not linked to this waterbody until reviewed.
HUC12 watersheds
Published with the listing Evidence: publisher-reported
- Compton Creek-Los Angeles River 180701050402
Overlapping the waterbody's shape Evidence: spatial
- Compton Creek-Los Angeles River 180701050402 also published
Industrial stormwater facilities
Evidence: identification corroborated
Shows: the facility named this waterbody as its receiving water in SMARTS, and the name and the facility's location are consistent with it. Does not establish: a discharge pathway, a discharge of any pollutant, or a cause of the listing.
Evidence: geographic proximity
Shows: the facility's reported location is within 1 km of the waterbody's mapped shape. Does not establish: that the facility discharges to this waterbody, or any other relationship.
Report this waterbody as their receiving water Evidence: identification corroborated
| Facility | WDID | Status | Distance from reported location | Map |
|---|---|---|---|---|
| Compton Steel Co Inc | 4 19I027412 | Active | 2.3 km | map |
| Foster Farms Fernandos Foods | 4 19I022320 | Active | 2.3 km | map |
| Metal Movers LLC | 4 19I026857 | Terminated | 2.4 km | map |
| USA Waste of California Inc | 4 19I012082 | Active | 2.4 km | map |
| Compu Die Casting Inc | 4 19I009099 | Terminated | 2.5 km | map |
| Cemak Trucking | 4 19I007108 | Terminated | 2.5 km | map |
| Thorock Metals Inc | 4 19I001791 | Terminated | 2.5 km | map |
| Jones Lumber Co | 4 19I010315 | Active | 2.6 km | map |
| Earle M Jorgensen Co | 4 19I001923 | Terminated | 2.6 km | map |
| Earle M Jorgensen Co | 4 19NEC016365 | Active | 2.6 km | map |
| Edey Mfg Co Inc | 4 19I026989 | Terminated | 2.7 km | map |
| Southern Counties Express | 4 19I030738 | Active | 2.8 km | map |
| Southern Counties Express | 4 19NEC013054 | Terminated | 2.8 km | map |
| A & I Pallets LLC | 4 19I028138 | Active | 2.8 km | map |
| Cocos Auto Dismantler Corp | 4 19I021965 | Active | 2.8 km | map |
| Matthews Pallets Inc | 4 19I024972 | Terminated | 2.9 km | map |
| Universal Molding Co Inc | 4 19I014397 | Active | 3.1 km | map |
| Universal Molding Company Inc | 4 19I026222 | Terminated | 3.2 km | map |
| Roger Caruso Enterprises Inc dba Century Pallets | 4 19I029066 | Terminated | 3.2 km | map |
| Hon Co | 4 19I003770 | Terminated | 3.3 km | map |
| Sun Lite Metals | 4 19I026498 | Active | 3.4 km | map |
| Alameda Recycling & Metals | 4 19I023898 | Terminated | 3.4 km | map |
| Aacon Auto Parts Wrecking | 4 19I017083 | Active | 4.1 km | map |
| Alameda Imports Inc | 4 19I031435 | Active | 4.2 km | map |
| 75S Corp FMC Metals | 4 19I022308 | Active | 4.9 km | map |
| Rogers Poultry | 4 19I026781 | Active | 4.9 km | map |
| Best Pallet Repair Inc | 4 19I027386 | Active | 5.0 km | map |
Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 77 facilities. Page 2 of 2: previous
Within 1 km of a facility's reported location Evidence: geographic proximity
Spatial proximity only; discharge pathway not established. Being near this waterbody does not mean a facility discharges to it.
| Facility | WDID | Status | Distance | Map |
|---|---|---|---|---|
| West Coast Aerospace Inc | 4 19I023808 | Active | 569 m | map |
| Golden Gate Steel Inc | 4 19I022550 | Terminated | 571 m | map |
| Tricap International | 4 19NEC006084 | Terminated | 574 m | map |
| Fleetwood Continental Inc | 4 19I009313 | Active | 575 m | map |
| Amazon com Services LLC DCW1 | 4 19NEC011048 | Active | 580 m | map |
| Pacifica Trucks LLC | 4 19I030232 | Active | 588 m | map |
| Doudell Trucking Company | 4 19NEC004487 | Active | 591 m | map |
| Chemco Products Company | 4 19I003939 | Active | 593 m | map |
| RSK Tool Inc | 4 19NEC013621 | Active | 597 m | map |
| Merit Abrasive | 4 19I013180 | Terminated | 597 m | map |
| Cal Style Furniture | 4 19I001680 | Terminated | 598 m | map |
| California Surface Hardening | 4 19IN602471 | Undetermined | 605 m | map |
| MNM MANFACTURING INC | 4 19NEC003146 | Active | 618 m | map |
| El Mar Plastics | 4 19I020999 | Terminated | 624 m | map |
| Morrison Express Corp LTD | 4 19NEC015945 | Active | 640 m | map |
| Advanex America Metal Stamping | 4 19NEC003302 | Terminated | 641 m | map |
| Aerol Co | 4 19I013173 | Terminated | 641 m | map |
| Fibernetics | 4 19I009477 | Terminated | 642 m | map |
| Performance Composites Inc | 4 19I019123 | Active | 642 m | map |
| BGI Worldwide Logistics Inc | 4 19NEC004485 | Terminated | 642 m | map |
| DOLPHIN LOGISTICS INC | 4 19NEC007688 | Terminated | 643 m | map |
| Nova Transportation Services Inc | 4 19NEC012300 | Terminated | 645 m | map |
| Harbor Green Grain | 4 19IN603381 | Terminated | 648 m | map |
| Harbor Green Grain | 4 19NEC003044 | Terminated | 648 m | map |
| Epsilon Plastics Inc | 4 19I019628 | Active | 650 m | map |
| Monico Alloys Inc | 4 19I019156 | Active | 659 m | map |
| Ball Industries Dv Ww Grainger | 4 19I011296 | Terminated | 660 m | map |
| Butcher Co | 4 19I013746 | Terminated | 662 m | map |
| Serra Manufacturing Corporation | 4 19NEC005392 | Active | 665 m | map |
| CALIFAME OF LOS ANGELES INC | 4 19NEC013353 | Active | 677 m | map |
| Atkinson Brick Co | 4 19I005620 | Terminated | 685 m | map |
| Imperial Molding Corporation | 4 19IN602045 | No Action Required | 694 m | map |
| Diamond Mattress Co | 4 19I022540 | Active | 697 m | map |
| Siemens Trans Systems | 4 19I015947 | Terminated | 698 m | map |
| Keep on Trucking | 4 19I020940 | Terminated | 698 m | map |
| Keep on Trucking | 4 19NEC002131 | Terminated | 698 m | map |
| Fastener Innovation Technology | 4 19I025345 | Terminated | 702 m | map |
| Fastener Innovation Technology | 4 19NEC006811 | Active | 702 m | map |
| Coastcast Corp | 4 19I018434 | Terminated | 702 m | map |
| FS Precision Tech LLC | 4 19I019377 | Terminated | 702 m | map |
| Allied Signal Aerospace | 4 19I001308 | Terminated | 704 m | map |
| Electro Sheen Ind Inc | 4 19I002227 | Terminated | 705 m | map |
| Western State Envelope | 4 19I012451 | Terminated | 709 m | map |
| Sea Recovery Corp | 4 19I021776 | Terminated | 709 m | map |
| Sonora Mills DBA Popchips | 4 19I023366 | Terminated | 716 m | map |
| Solvay USA Inc | 4 19I025288 | Terminated | 717 m | map |
| Energy Solutions US LLC | 4 19I029924 | Active | 717 m | map |
| Compton Airport | 4 19I016803 | Terminated | 721 m | map |
| CALLTEXPRINT | 4 19NEC012108 | Active | 733 m | map |
| Chemtex Print USA Incorporated | 4 19NEC004695 | Terminated | 734 m | map |
Sources and provenance
| Information | Source | Retrieved |
|---|---|---|
| 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 (facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1).
Integrated Report categories: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant.