California Stormwater Intelligence

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Waterbody profile

Official Water Board record · 2026 cycle

Long Canyon Creek (tributary to Murrieta Creek)

Waterbody ID (WBID): CAR9028300020011025112509
County / counties: Riverside
Regional Water Board: Regional Board 9 - San Diego Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (5)

Each row is one official listing decision from Appendix A of the Final 2026 California Integrated Report. Source terminology is preserved as published.

Pollutant / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
ChlorpyrifosPesticides	76196	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
IronMetals	77172	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ManganeseMetals	77086	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
NitrogenNutrients	77747	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
PhosphorusNutrients	76024	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low

Source & provenance

Agency: California State Water Resources Control Board
Report: Final 2026 California Integrated Report
Dataset: Appendix A — 2026 303(d) List of Impaired Waters
Imported: Sep 16, 2026, 10:57 PM UTC
Waterbody ID: CAR9028300020011025112509
CALWNUM: 4902.32
WBD code: 180703020407
Geometry: Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

View official Water Board fact sheet ↗Download Appendix A source file ↗

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

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Watershed: —
Assessed size: 5.56 Miles

Facilities with an NAL exceedance for a listed pollutant (3)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

Heavy Metal Scrap Recycling9 33I025249

Iron · most recent exceedance RY 2019 · association: derived nearby in watershed

SA Recycling9 33I022862

Iron · most recent exceedance RY 2019 · association: derived watershed association

Temecula Valley RWRF9 33I000856

Iron · most recent exceedance RY 2025 · association: derived watershed association

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

Industrial stormwater facilities geographically associated with this waterbody. These are derived spatial associations, not Water Board findings.

Derived

Abbott Cardiovascular Systems Inc

Temecula · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC DUR9

Temecula · Notice of Intent · 0.65 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Temecula · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Briar Rose Winery

Temecula · No Exposure Certification · 0.69 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

callaway winery

Temecula · No Exposure Certification · 0.41 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

CNC Manufacturing

Temecula · No Exposure Certification · 0.94 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Temecula · Notice of Non-Applicability · 0.87 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

DENSO Murrieta Operations

Temecula · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Europa Village Bolero

Temecula · No Exposure Certification · 0.28 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Garage Brewing Co

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Green Go Recycling Temecula

Temecula · Notice of Intent · 0.76 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Heavy Metal Scrap Recycling

Temecula · Notice of Intent · 0.30 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Infineon Technologies Americas Corp

Temecula · Notice of Intent · 0.90 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Ironfire Brewing Company Incorporated

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Milgard Windows and Doors LLC

Temecula · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification · 0.65 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Mount Palomar Winery

Temecula · Notice of Intent · 0.84 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

relentless brewing company

Temecula · No Exposure Certification · 0.43 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

RobinsonPrinting

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Murrieta · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Rosa Water Reclamation Facility

Murrieta · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Scotts Miracle Gro Company

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

StorAmerica Temecula

Temecula · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Symbio North America Corporation

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula Quality Plating

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula Ready Mix

Temecula · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula Valley RWRF

Temecula · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Temecula · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Thornton Winery

Temecula · Notice of Intent · 0.07 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Tropitone Furniture Co Inc

Temecula · No Exposure Certification · 1.00 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Facility records are official Industrial General Permit registrations, but the association between a facility and this waterbody is derived geographically (proximity or shared HUC12 subwatershed) and is not a Water Board receiving-water determination. Where a permit carries a Water Board-stated TMDL requirement naming this water, it is listed separately above.