Chino Creek Reach 2 (Beginning of concrete channel to confl w San Antonio Creek)
2026 303(d) list Waterbody ID CAR8012100019990211094451 River & Stream Region 8 · Santa Ana
At a glance
- 2026 listing Evidence: State-published
- On the 2026 303(d) list · 2 Appendix A decisions
- Category 5: a TMDL is required
- What a listing means
- Pollutants and stressors
- 2 pollutants in 2 Appendix A categories
- Other Cause (1) · Pathogens (1)
- Listing decisions
- TMDL information Evidence: State-published
- 2 decisions with a TMDL requirement status; 1 name a TMDL project
- Status codes as published: 5A, 5B
- TMDL details
- Industrial stormwater facilities
- 0 report it as their receiving water Evidence: identification corroborated
- 111 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
- 2
- 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
- 8 — Santa Ana
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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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 |
|---|---|---|---|---|---|---|
| pH | Other Cause | 5 | Do Not Delist from 303(d) list (TMDL required list) | Revised | A Source Unknown | 132761 |
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 | Unknown Nonpoint Source | 149140 |
TMDL information Evidence: State-published
| Pollutant | TMDL requirement status | TMDL project | Priority | USEPA approval of TMDL | Expected attainment |
|---|---|---|---|---|---|
| Indicator Bacteria | 5B | Middle Santa Ana River Watershed Bacterial Indicator TMDLs | — | 2007-05-16 | — |
| pH | 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
- Upper Chino Creek 180702030702
- Middle Chino Creek 180702030703
Overlapping the waterbody's shape Evidence: spatial
- Upper Chino Creek 180702030702 also published
- Middle Chino Creek 180702030703 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
No facility's reported receiving water is identified as this waterbody.
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 |
|---|---|---|---|---|
| OC Flavors LLC | 8 36NEC011826 | Active | 496 m | map |
| OC Flavors LLC dba Mosaic Flavors | 8 36NEC015068 | Active | 496 m | map |
| OC Flavors LLC dba Mosaic Flavors | 8 36NEC015823 | Active | 496 m | map |
| E & K Precision Inc | 8 36NEC012995 | Active | 500 m | map |
| Tomcom International Inc | 8 36NEC016135 | Active | 510 m | map |
| Tomcom International Inc | 8 36NNA003606 | NONA Submitted | 510 m | map |
| DK ENGINEERING | 8 36NEC009610 | Active | 516 m | map |
| Best Buy DDC 724 | 8 36IN602858 | Undetermined | 519 m | map |
| Best Buy DDC 724 & SVC 624 | 8 36NEC001040 | Terminated | 525 m | map |
| Whiplash Building 16 | 8 36NEC004060 | Active | 570 m | map |
| Clariant Corp | 8 36I021944 | Terminated | 579 m | map |
| Clariant Corp | 8 36NEC000350 | Terminated | 579 m | map |
| JW AMERICA INC | 8 36IN602074 | Undetermined | 583 m | map |
| Superior Metal Shapes Inc | 8 36I015007 | Active | 592 m | map |
| Universal Packing Systems Inc DBA PakLab | 8 36NEC002549 | Active | 596 m | map |
| CA Institution For Men | 8 36I005625 | Terminated | 601 m | map |
| Hitek Product Finishing Inc | 8 36I003607 | Terminated | 610 m | map |
| Cowden Metal Finishing Inc | 8 36I015638 | Terminated | 610 m | map |
| Trend Technologies | 8 36I017184 | Terminated | 610 m | map |
| Trend Technologies | 8 36I017782 | Terminated | 610 m | map |
| CES 2020 LLC | 8 36NEC015871 | Active | 635 m | map |
| Best Buy Pacific Sales DDC 1755 | 8 36NEC001041 | Terminated | 636 m | map |
| PDC LLC | 8 36NEC001881 | Active | 673 m | map |
| PB Industry | 8 36NEC003392 | Terminated | 695 m | map |
| 8DSpace LLC | 8 36NEC014662 | Active | 708 m | map |
| PLZ Corp | 8 36NEC003688 | Terminated | 728 m | map |
| Masonite Corp | 8 36I012341 | Terminated | 732 m | map |
| Nevamar Co., LLC | 8 36I017564 | Terminated | 732 m | map |
| Sundance Spas Inc | 8 36I016250 | Active | 748 m | map |
| PLZ Corp | 8 36I030605 | Terminated | 751 m | map |
| Ramona | 8 36NEC003955 | Terminated | 759 m | map |
| Exhaust Gas Technologies Inc | 8 36NEC006935 | Active | 800 m | map |
| California Distribution Center | 8 36I027575 | Terminated | 830 m | map |
| California Distribution Center | 8 36NEC004408 | Terminated | 830 m | map |
| Amcor Rigid Packaging USA LLC | 8 36I026083 | Active | 835 m | map |
| Advance Technical Industries | 8 36IN606036 | No Action Required | 836 m | map |
| B and K Engineering Inc | 8 36NEC003166 | Terminated | 836 m | map |
| Advance Technical Industries | 8 36NEC007412 | Active | 836 m | map |
| Omanson Precision Engineering Inc | 8 36NEC014771 | Active | 836 m | map |
| Performance Team Freight Systems 127 | 8 36NEC001927 | Terminated | 837 m | map |
| Usf Logistics Tricor Warehousi | 8 36I004420 | Terminated | 845 m | map |
| GE Silicones | 8 36I017027 | Terminated | 863 m | map |
| Momentive Performance Materials USA LLC | 8 36I020620 | Terminated | 863 m | map |
| Specialty Machining & Fab Inc | 8 36NEC002642 | Active | 867 m | map |
| Equator Global Logistics Inc | 8 36NEC014058 | Active | 883 m | map |
| FREIGHT EXPRESS SHIPPING CORP | 8 36NEC015496 | Active | 883 m | map |
| Performance Team Freight Systems 27 | 8 36NEC001925 | Terminated | 897 m | map |
| Gluten Free Foods Manufacturing LLC | 8 36NEC003502 | Terminated | 931 m | map |
| Gluten Free Foods Mfg LLC | 8 36NEC009908 | Active | 935 m | map |
| Westcoast Plush Workshop Ltd | 8 36NEC011208 | Terminated | 944 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.