Carquinez Strait
2026 303(d) list Waterbody ID CAE2071002019980928134605 Estuary Region 2 · San Francisco Bay
At a glance
- 2026 listing Evidence: State-published
- On the 2026 303(d) list · 10 Appendix A decisions
- Category 5: a TMDL is required
- What a listing means
- Pollutants and stressors
- 10 pollutants in 4 Appendix A categories
- Metals (2) · Other Cause (1) · Pesticides (3) · Toxic Organics (4)
- Listing decisions
- TMDL information Evidence: State-published
- 10 decisions with a TMDL requirement status; 4 name a TMDL project
- Status codes as published: 5A, 5B
- TMDL details
- Industrial stormwater facilities
- 8 report it as their receiving water Evidence: identification corroborated
- 36 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
- 10
- 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
- 2 — San Francisco Bay
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 (2 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Mercury | Metals | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Revised | A Source Unknown | 145425 |
| Selenium | Metals | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Revised | Exotic Species Major Industrial Point Source Natural Sources | 141166 |
Other Cause (1 decision)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Invasive Species | Other Cause | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 170607 |
Pesticides (3 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Chlordane | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 151260 |
| DDT (Dichlorodiphenyltrichloroethane) | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 151521 |
| Dieldrin | Pesticides | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 151261 |
Toxic Organics (4 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Dioxin compounds (including 2,3,7,8-TCDD) | Toxic Organics | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 151262 |
| Furan Compounds | Toxic Organics | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 151264 |
| PCBs (Polychlorinated biphenyls) | Toxic Organics | 5 | Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL) | Revised | A Source Unknown | 141165 |
| PCBs (Polychlorinated biphenyls) (dioxin-like) | Toxic Organics | 5 | List on 303(d) list (being addressed by USEPA approved TMDL) | Original | A Source Unknown | 70414 |
TMDL information Evidence: State-published
| Pollutant | TMDL requirement status | TMDL project | Priority | USEPA approval of TMDL | Expected attainment |
|---|---|---|---|---|---|
| Chlordane | 5A | — | Low | — | — |
| DDT (Dichlorodiphenyltrichloroethane) | 5A | — | Low | — | — |
| Dieldrin | 5A | — | Low | — | — |
| Dioxin compounds (including 2,3,7,8-TCDD) | 5A | — | Low | — | — |
| Furan Compounds | 5A | — | Low | — | — |
| Invasive Species | 5A | — | Low | — | — |
| Mercury | 5B | San Francisco Bay Mercury | — | 2008-02-12 | — |
| PCBs (Polychlorinated biphenyls) | 5B | San Francisco Bay PCBs | — | 2010-03-29 | — |
| PCBs (Polychlorinated biphenyls) (dioxin-like) | 5B | San Francisco Bay PCBs | — | 2010-03-29 | — |
| Selenium | 5B | San Francisco Bay Selenium - North Bay | — | 2016-08-23 | — |
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
- American Canyon-Frontal Suisun Bay Estuaries 180500010109
- Arroyo del Hambre-Frontal Suisun Bay Estuaries 180500010303
- Suisun Bay Estuaries-Frontal Suisun Bay 180500010401
The published list is truncated in Appendix A; it is not a complete list of watersheds.
Overlapping the waterbody's shape Evidence: spatial
- American Canyon-Frontal Suisun Bay Estuaries 180500010109 also published
- Arroyo del Hambre-Frontal Suisun Bay Estuaries 180500010303 also published
- Suisun Bay Estuaries-Frontal Suisun Bay 180500010401 also published
- Suisun Bay Islands 180500010402
- Suisun Bay 180500010403
- American Canyon Creek-Frontal San Pablo Bay Estuaries 180500020401
- Novato Creek-Frontal San Pablo Bay Estuaries 180500020801
- San Pablo Bay 180500020802
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 |
|---|---|---|---|---|
| Valero Benicia Coke Silo | 2 48I030268 | Active | 94 m | map |
| Dist & Auto Ser | 2 48I005880 | Terminated | 278 m | map |
| Union Pacific Railroad Benicia | 2 48I025905 | Active | 1.9 km | map |
| Pacific Rim Recycling | 2 48I022328 | Terminated | 2.0 km | map |
| Clean Harbors San Jose LLC | 2 48I015015 | Active | 2.4 km | map |
| BCI Coca Cola Bottling Company of LA | 2 48I006460 | Terminated | 3.1 km | map |
| Reyes Coca Cola Bottling LLC | 2 48I027431 | Active | 3.1 km | map |
| Flowserve Corp | 2 48I021465 | Terminated | 4.3 km | map |
Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 8 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 |
|---|---|---|---|---|
| Benicia Harbor Corporation | 2 48NEC009150 | Active | 14 m | map |
| Valero Benicia Coke Silo | 2 48I030268 | Active | 94 m | map |
| C & H Sugar Refinery | 2 07I003079 | Terminated | 186 m | map |
| Marine Services Complex | 2 07I004593 | Terminated | 218 m | map |
| Eagle Marine | 2 07I015215 | Active | 218 m | map |
| East Canyon Landfill | 2 48I018068 | Terminated | 232 m | map |
| Bradbury & Bradbury Wallpapers | 2 48NNA000511 | NOI Required | 253 m | map |
| Pac Custom Materials | 2 07I012421 | Terminated | 258 m | map |
| Dist & Auto Ser | 2 48I005880 | Terminated | 278 m | map |
| Smyers Glass | 2 48I014289 | Terminated | 294 m | map |
| VINTNERS WAY TRANSPORT LLC | 2 48NNA003520 | Undetermined | 303 m | map |
| Unocal | 2 07I005558 | Terminated | 318 m | map |
| Rhone Poulenc Basic Chemicals | 2 07I009750 | Terminated | 335 m | map |
| Benicia City Wwtp | 2 48I000072 | Terminated | 341 m | map |
| Waters Moving & Storage | 2 07I005716 | Terminated | 399 m | map |
| John Swett High Sch | 2 07I006993 | Terminated | 436 m | map |
| Holy Moly Hauling | 2 48NEC009835 | Active | 449 m | map |
| 20 oak rd | 2 48IN602761 | Undetermined | 488 m | map |
| Telfer Oil Co | 2 07I000191 | Terminated | 490 m | map |
| Telfer Pavement Technologies LLC | 2 07I026469 | Terminated | 490 m | map |
| Propercare Transportation | 2 48NNA002661 | No Action Required | 568 m | map |
| Phillips 66 Company Rodeo Carbon Plant | 2 07I021771 | Terminated | 613 m | map |
| Lee Mark Co | 2 07I013790 | Terminated | 645 m | map |
| Sperry Mill Group | 2 48I031042 | Active | 684 m | map |
| Amorco Terminal Tank Farm | 2 07I023613 | Active | 689 m | map |
| American Cabinetry | 2 48NEC007281 | Active | 708 m | map |
| Five Suns Brewing LLC | 2 07NEC006907 | Active | 709 m | map |
| General Mills Operations Inc | 2 48I009110 | Terminated | 725 m | map |
| Shore Terminals LLC | 2 07I014705 | Terminated | 761 m | map |
| Public Storage | 2 48NNA001230 | No Action Required | 778 m | map |
| CC Myers Inc Benicia | 2 48I021677 | Terminated | 828 m | map |
| Wear Ever Mfg | 2 48NEC006602 | Terminated | 869 m | map |
| Wear Ever Manufacturing | 2 48NEC009746 | Terminated | 869 m | map |
| Wear Ever Mfg | 2 48NEC010066 | Terminated | 869 m | map |
| Shell Chemical LP Martinez Catalyst Plant | 2 07I029888 | Active | 875 m | map |
| AMPORTS | 2 48I015336 | Terminated | 974 m | map |
36 facilities, nearest first.
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.