Carroll Canyon
2026 303(d) list Waterbody ID CAR9061000020090127004841 River & Stream Region 9 · San Diego
At a glance
- 2026 listing Evidence: State-published
- On the 2026 303(d) list · 4 Appendix A decisions
- Category 5: a TMDL is required
- What a listing means
- Pollutants and stressors
- 4 pollutants in 3 Appendix A categories
- Other Cause (1) · Pesticides (2) · Total Toxics (1)
- Listing decisions
- TMDL information Evidence: State-published
- 4 decisions with a TMDL requirement status
- Status codes as published: 5A
- TMDL details
- Industrial stormwater facilities
- 12 report it as their receiving water Evidence: identification corroborated
- 323 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
- 4
- 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
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.
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 Hydromodification Illicit Connections/Illegal Hook-ups/Dry Weather Flows Unknown Nonpoint Source Unknown Point Source Urban Runoff/Storm Sewers | 125933 |
Pesticides (2 decisions)
| Pollutant | Pollutant category | Category | Final listing decision | Decision status | Sources | Decision ID |
|---|---|---|---|---|---|---|
| Cyfluthrin | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 130852 |
| Pyrethroids | Pesticides | 5 | List on 303(d) list (TMDL required list) | Revised | A Source Unknown | 130849 |
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 | 113637 |
TMDL information Evidence: State-published
| Pollutant | TMDL requirement status | TMDL project | Priority | USEPA approval of TMDL | Expected attainment |
|---|---|---|---|---|---|
| Benthic Community Effects | 5A | — | Low | — | — |
| Cyfluthrin | 5A | — | Low | — | — |
| Pyrethroids | 5A | — | Low | — | — |
| Toxicity | 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
- Carroll Canyon 180703040401
Overlapping the waterbody's shape Evidence: spatial
- Carroll Canyon 180703040401 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 |
|---|---|---|---|---|
| Care Medical Transportation | 9 37I029796 | Terminated | 30 m | map |
| Hanson Aggregates LLC | 9 37I014663 | Terminated | 34 m | map |
| Robertsons Carroll Canyon Batch Plant | 9 37I028431 | Active | 96 m | map |
| Athletic Brewing Company | 9 37I031543 | Active | 343 m | map |
| Illumina Inc | 9 37I027780 | Terminated | 354 m | map |
| BioLegend Inc | 9 37NEC002423 | Terminated | 530 m | map |
| BioLegend PacHts | 9 37I027923 | Terminated | 532 m | map |
| Westside Building San Diego LLC | 9 37I022212 | Terminated | 629 m | map |
| US Foods Inc | 9 37I031752 | Active | 701 m | map |
| UPS San Diego North CACLR | 9 37I004617 | Terminated | 710 m | map |
| TForce Freight North San Diego | 9 37I029533 | Terminated | 710 m | map |
| Viking Freight Inc | 9 37I005843 | Terminated | 1.3 km | map |
Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 12 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 |
|---|---|---|---|---|
| Vanguard Space Technologies Inc | 9 37IN600682 | Undetermined | 571 m | map |
| PCI Pharmaceutical Services | 9 37NEC008566 | Active | 575 m | map |
| Care Ambulance | 9 37IN601655 | No Action Required | 582 m | map |
| Scripps Mesa Storage | 9 37IN602464 | No Action Required | 582 m | map |
| SonTek YSI | 9 37IN600723 | Undetermined | 583 m | map |
| Nationsway Trans Ser | 9 37I011139 | Terminated | 584 m | map |
| Old Dominion Freight Line SDO | 9 37I021748 | Active | 584 m | map |
| Hybritech Inc | 9 37I013274 | Terminated | 585 m | map |
| Apta | 9 37I012183 | Terminated | 586 m | map |
| Timothy Crabtree | 9 37IN600717 | Undetermined | 590 m | map |
| Right Manufacturing | 9 37IN600799 | Undetermined | 590 m | map |
| Global Moving Systems | 9 37I004959 | Terminated | 592 m | map |
| Global Moving Systems Inc | 9 37I007171 | Terminated | 592 m | map |
| Westaflex Inc | 9 37IN601710 | Undetermined | 593 m | map |
| Epitope Diagnostics Inc | 9 37IN602276 | Undetermined | 595 m | map |
| Cue Health Nancy Ridge | 9 37NEC009004 | Terminated | 601 m | map |
| Creative Computer Products | 9 37IN601706 | Undetermined | 607 m | map |
| Turbine Components, Inc | 9 37IN600378 | Undetermined | 608 m | map |
| National Resource MGMT | 9 37IN600654 | Undetermined | 609 m | map |
| Beckman Coulter | 9 37I016840 | Terminated | 612 m | map |
| Carroll Ridge Business Park | 9 37I012107 | Terminated | 613 m | map |
| Corporate Computer Centers Inc | 9 37IN601719 | Undetermined | 619 m | map |
| DRTS Enterprises Ltd | 9 37IN601959 | Undetermined | 626 m | map |
| Robertsons Miramar Plant | 9 37I020853 | Active | 628 m | map |
| Expo Industries Inc | 9 37I020510 | Terminated | 629 m | map |
| Westside Building San Diego LLC | 9 37I022212 | Terminated | 629 m | map |
| Toppan Electronics | 9 37I003999 | Terminated | 629 m | map |
| Stone Yard Inc | 9 37I020296 | Terminated | 630 m | map |
| Expo Industries INC | 9 37I021627 | Terminated | 630 m | map |
| Iseki Inc | 9 37I012106 | Terminated | 631 m | map |
| Eco Air Prod Inc | 9 37I012118 | Terminated | 636 m | map |
| OCB Reprographics | 9 37IN600632 | No Action Required | 640 m | map |
| USF Bestway 398 | 9 37I019160 | Terminated | 643 m | map |
| Erik Vogt | 9 37I020381 | Terminated | 647 m | map |
| Saryna Technologies LLC | 9 37IN600356 | Undetermined | 653 m | map |
| San Diego Petroleum Corp | 9 37I001832 | Terminated | 658 m | map |
| PolyPeptide Laboratories San Diego (PPL-SD) | 9 37NEC002473 | Terminated | 672 m | map |
| Alere San Diego Incorporation | 9 37NEC000300 | Terminated | 672 m | map |
| PolyPeptide Laboratories San Diego | 9 37IN601194 | Undetermined | 674 m | map |
| PolyPeptide Laboratories San Diego | 9 37NEC007950 | Active | 676 m | map |
| Scott Summeril | 9 37IN600860 | Undetermined | 677 m | map |
| Quidel Cardiovascular Inc | 9 37NEC009930 | Active | 679 m | map |
| ChemTreat dba Trident Technologies | 9 37NEC007432 | Terminated | 684 m | map |
| T Systems Intl Inc | 9 37I018785 | Terminated | 686 m | map |
| T Systems International | 9 37I021607 | Terminated | 686 m | map |
| Solder Station One P 3 | 9 37I002811 | Terminated | 689 m | map |
| Hi-Z Technology | 9 37IN600388 | Undetermined | 689 m | map |
| Rhino Linings Corporation | 9 37I025287 | Terminated | 693 m | map |
| CalPortland Company DBA Superior Carroll Road Plant | 9 37I031583 | Active | 693 m | map |
| Mesa Distributing Co | 9 37I001878 | Terminated | 695 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.