California Stormwater Intelligence

← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Walker Slough (in Delta Waterways, eastern portion)

Waterbody ID (WBID): CAR5314000020020111134652
County / counties: San Joaquin
Regional Water Board: Regional Board 5 - Central Valley Region
Waterbody type: River & Stream
Condition category: Category 4a — TMDL completed
Integrated Report cycle: 2026

303(d) listings (1)

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
Indicator BacteriaPathogens	73368	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Stockton Area Sloughs and Rivers - Pathogens	—

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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR5314000020020111134652
CALWNUM: 6531.400000, 6544.000000
WBD code: 180400510402, 180400510403
Geometry: Not available in imported GIS services

Download Appendix A source file ↗

Location

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

Official Water Board geometry was not available in the imported GIS services for this waterbody. All regulatory information above comes directly from Appendix A.

Watershed: —
Assessed size: 2.85 Miles

Derived facility associations

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

Derived

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

A A Concrete Supply Stockton

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

ABF Freight System Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Advanced Industrial Coatings

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC SCK1

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC SCK4

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC SCK9

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC SMF3

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

American Recycling Holdings

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Applied Aerospace Structs Corp

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ardent Mills LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ardex Stockton Plant

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

BNSF Railway Almond (Mariposa) Intermodal

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

C & H Enterprises Qantas

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

CA Army National Guard Stockto

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Campbell Soup Co

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Cargill Inc Nutrena Feed

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Chemical Transfer Co Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Coastal Pacific Food Distributors

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Costco Stockton CA Direct Delivery Center

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Custom Building Products

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Cutter Lumber Prod

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Delicato Manteca Winery

Manteca · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Delta Charter Service

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

discount auto used parts

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Donaldson Company Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Durham School Services

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

East Coast West Coast Logistics dba The Gilbert Company

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

FedEx Freight Stockton

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

G I Trucking Co dba Estes West

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Jb Hunt Trans Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

JM Manufacturing Co Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Kennedy Auto Co Inc

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Lawleys Incorporated

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Lhoist North America Stockton Terminal

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Lopez Custom Composites

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

LSC Communications Transport LLC

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

French Camp · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Martin Brower Co LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Maxim Crane Works

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Mitsubishi Chemical

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Moctezumas Auto Dismantler and Auto Body

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Murray Trailer a division of Hogan Manufacturing Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Niagara Bottling LLC Stockton

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Niagara Bottling LLC Stockton 2

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Northern California Youth Correctional Center

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Oldcastle Infastructure

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Oldcastle Infastructure

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Pactiv Performance

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pick N Pull Auto Dismantlers Stockton LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pick N Pull Auto Dismantlers Stockton LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

REACH 002 Stockton

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

ReConserve of California Stockton Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Rudolph and Sletten Equipment Yard

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

San Joaquin Cnty Stockton Metr

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

SCAFCO STEEL STUD MFG CO

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Shepard Bros Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Shred It Stockton

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Sika Corporation

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton Auto Dismantlers Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton Logistics LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

The Sygma Network Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Tri Map International Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

UNFI Stockton BWS

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Universal Service Recycling Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

USG Interiors LLC 603 Main Facility

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

USPS Stockton VMF

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Valley Pacific Petroleum Stockton

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Value Products INC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Vanderbend Manufacturing Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Waste Recovery West LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Winsome Enterprises Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

World Class Distribution Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

World Class Distribution Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

XPO Logistics Freight Inc UST

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification

derived_watershed_association

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.