Agua Hedionda Creek
2026 303(d) list Waterbody ID CAR9043100020010924145051 River & Stream Region 9 · San Diego
At a glance
- 2026 listing Evidence: State-published
- On the 2026 303(d) list · 17 Appendix A decisions
- Category 5: a TMDL is required
- What a listing means
- Pollutants and stressors
- 17 pollutants in 8 Appendix A categories
- Metals (2) · Nutrients (2) · Other Cause (1) · Pathogens (1) · Pesticides (8) · SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES (1) · Sediment (1) · Total Toxics (1)
- Listing decisions
- TMDL information Evidence: State-published
- 17 decisions with a TMDL requirement status
- Status codes as published: 5A
- TMDL details
- Industrial stormwater facilities
- 41 report it as their receiving water Evidence: identification corroborated
- 207 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
- 17
- 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
- 9 — San Diego
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
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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 (2 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Manganese | Metals | 5 | List on 303(d) list (TMDL required list) | Original | A Source Unknown | 68777 |
| Selenium | Metals | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111597 |
Nutrients (2 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Nitrogen | Nutrients | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 132037 |
| Phosphorus | Nutrients | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111596 |
Other Cause (1 decision)
| 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 | 125884 |
Pathogens (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Indicator Bacteria | Pathogens | 5 | List on 303(d) list (TMDL required list) | Original | A Source Unknown | 75644 |
Pesticides (8 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Bifenthrin | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111604 |
| Chlorpyrifos | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111585 |
| Cyfluthrin | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 111610 |
| Cyhalothrin, Lambda | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 111612 |
| Cypermethrin | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 144941 |
| Deltamethrin | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 144942 |
| Malathion | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111591 |
| Pyrethroids | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 144940 |
SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Total Dissolved Solids | SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111598 |
Sediment (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Turbidity | Sediment | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 111600 |
Total Toxics (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Toxicity | Total Toxics | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 111599 |
TMDL information Evidence: State-published
| Pollutant | TMDL requirement status | TMDL project | Priority | USEPA approval of TMDL | Expected attainment |
|---|---|---|---|---|---|
| Benthic Community Effects | 5A | — | Low | — | — |
| Bifenthrin | 5A | — | Low | — | — |
| Chlorpyrifos | 5A | — | Low | — | — |
| Cyfluthrin | 5A | — | Low | — | — |
| Cyhalothrin, Lambda | 5A | — | Low | — | — |
| Cypermethrin | 5A | — | Low | — | — |
| Deltamethrin | 5A | — | Low | — | — |
| Indicator Bacteria | 5A | — | Low | — | — |
| Malathion | 5A | — | Low | — | — |
| Manganese | 5A | — | Low | — | — |
| Nitrogen | 5A | — | Low | — | — |
| Phosphorus | 5A | — | Low | — | — |
| Pyrethroids | 5A | — | Low | — | — |
| Selenium | 5A | — | Low | — | — |
| Total Dissolved Solids | 5A | — | Low | — | — |
| Toxicity | 5A | — | Low | — | — |
| Turbidity | 5A | — | Low | — | — |
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
- Agua Hedionda Creek 180703030502
Overlapping the waterbody's shape Evidence: spatial
- Agua Hedionda Creek 180703030502 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 |
|---|---|---|---|---|
| Aztec Containers | 9 37I026237 | Active | 41 m | map |
| Camston Wrather LLC | 9 37I029826 | Active | 452 m | map |
| Stines Machine Incorporated | 9 37I025981 | Terminated | 507 m | map |
| Stines Machine Incorporated | 9 37NEC015954 | Active | 507 m | map |
| Origin Golf | 9 37NEC003714 | Active | 580 m | map |
| Top of the Bagel | 9 37NEC002848 | Active | 627 m | map |
| Nordson Asymtek | 9 37I026312 | Terminated | 634 m | map |
| FedEx Freight Inc NSD | 9 37I025026 | Active | 669 m | map |
| Amazon com Services LLC DSD5 PKG CARLSBAD5 | 9 37I030353 | Active | 710 m | map |
| E World Recyclers LLC | 9 37I024443 | Terminated | 747 m | map |
| Chaparros Mexican Food Inc | 9 37I027559 | Active | 806 m | map |
| Wyroc Inc | 9 37I007227 | Terminated | 842 m | map |
| Ionis Pharmaceuticals Inc | 9 37I014738 | Active | 909 m | map |
| Architectural Millwork Solutions Inc | 9 37NEC003693 | Active | 968 m | map |
| Rockwell Collins Optronics | 9 37NEC001483 | Active | 1.1 km | map |
| Coast Waste Management Inc | 9 37I014374 | Terminated | 1.1 km | map |
| Captek Softgel International | 9 37I031707 | Active | 1.2 km | map |
| Captek Softgel International | 9 37NEC010775 | Terminated | 1.2 km | map |
| Coorstek Vista Inc | 9 37I023369 | Terminated | 1.2 km | map |
| Coorstek Vista Inc | 9 37NEC000050 | Terminated | 1.2 km | map |
| Rayzist Photomask Inc | 9 37I019312 | Active | 1.3 km | map |
| Watkins Manufacturing | 9 37I005398 | Active | 1.3 km | map |
| FLUX POWER | 9 37I030548 | Active | 1.3 km | map |
| FLUX POWER | 9 37NEC011646 | Terminated | 1.3 km | map |
| US Foods Vista 4J | 9 37NEC014406 | Terminated | 1.4 km | map |
| Dr Bronners | 9 37I025623 | Terminated | 1.4 km | map |
| Dr Bronners | 9 37NEC000728 | Active | 1.4 km | map |
| Ferro Electronic Materials | 9 37I015837 | Terminated | 1.5 km | map |
| Ferro Electronic Materials | 9 37NEC000465 | Terminated | 1.5 km | map |
| Pro Spot International Inc | 9 37I031244 | Active | 1.5 km | map |
| Pro Spot International Inc | 9 37NEC007393 | Terminated | 1.5 km | map |
| Drs Own | 9 37NEC011615 | Active | 1.6 km | map |
| Javo Beverage Co | 9 37I021167 | Active | 1.6 km | map |
| Versaform Corporation | 9 37I018562 | Active | 1.7 km | map |
| Acushnet Co | 9 37I015433 | Terminated | 1.7 km | map |
| Acushnet Co | 9 37NEC001664 | Active | 1.7 km | map |
| RTX Corporation Pratt & Whitney Division | 9 37I029933 | Active | 1.7 km | map |
| Breg Inc | 9 37NEC004718 | Active | 1.9 km | map |
| UPS Carlsbad CALSB | 9 37I030884 | Active | 1.9 km | map |
| Amazon com Services LLC CARLSBAD6 | 9 37I030435 | Active | 2.2 km | map |
| Amazon com Services LLC DGB6 | 9 37I030051 | Active | 2.3 km | map |
Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 41 facilities.
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 |
|---|---|---|---|---|
| GE Osmonics | 9 37I018961 | Terminated | 959 m | map |
| ND1 Inc | 9 37I024100 | Terminated | 964 m | map |
| Architectural Millwork Solutions Inc | 9 37NEC003693 | Active | 968 m | map |
| solatube international incorporated | 9 37NEC003142 | Active | 973 m | map |
| Desalination Systems | 9 37I012226 | Terminated | 979 m | map |
| Osmonics Desal | 9 37I015983 | Terminated | 979 m | map |
| CubeSmart 551 | 9 37NNA001872 | NONA Submitted | 1,000 m | map |
207 facilities, nearest first. Page 5 of 5: previous
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.