California Stormwater Intelligence

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Waterbody profile

Official Water Board record · 2026 cycle

Mormon Slough (in Delta Waterways, eastern portion)

Waterbody ID (WBID): CAR5313000020000209130407
County / counties: San Joaquin
Regional Water Board: Regional Board 5 - Central Valley Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (2)

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	73172	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Stockton Area Sloughs and Rivers - Pathogens	—
Organic Enrichment/Low Dissolved OxygenNutrients	72952	Do Not Delist from 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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR5313000020000209130407
CALWNUM: 6544
WBD code: 180400030303
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: 1.08 Miles

Derived facility associations

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

Derived

99 Auto Dismantler

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

All Good Pallets Sto

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Aspire Bakeries LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

BNSF Railway Stockton

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

California Pallets Inc

Stockton · Notice of Intent · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Central California Railcar Repair

San Joaquin · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Central Valley Fabricators

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Delta Marine Services Inc

Stockton · Notice of Intent · 0.16 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Stockton · No Exposure Certification · 0.77 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Diamond Foods Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent · 0.69 km away

derived_receiving_water

Derived by California Stormwater Intelligence

E Stockton Recycling Transfer Station

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Finish Line Auto Parts

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

FTG Const Materials Inc

Stockton · Notice of Intent · 0.86 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Geiger Manufacturing Inc

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Industrial Solution Service

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

JM Dismantler Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Kents Oil Service Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Lincoln Street Plant

Stockton · Notice of Intent · 0.04 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

LKQ Acme Truck Parts

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

LKQ Acme Trucks Parts

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

MV Transportation Div 09

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

N J McCutchen Inc

Stockton · Notice of Intent · 0.21 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

New Stockton Poultry Inc

Stockton · Notice of Intent · 0.64 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pacific Paper Tube

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Panella Trucking Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

PDM STEEL SERVICE CENTER

Stockton · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Penny Newman Grain Co

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Production Car Care Prod

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Recycled Fibers

Stockton · Notice of Intent · 0.64 km away

derived_receiving_water

Derived by California Stormwater Intelligence

San Joaquin Regional Transit District

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

San Joaquin RTD Filbert St

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton Cold Storage

Stockton · No Exposure Certification · 0.29 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Stockton Tri Industries LLC

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Stockton Unified Sch Dist Tran

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Tri Valley Recycling

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

UPS Stockton CASTO

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

URecycle Inc DBA 99 Recycling Center

Stockton · Notice of Non-Applicability · 0.81 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Wardley Industrial Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

West Star Industries

Stockton · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Western Square Ind Inc

Stockton · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Wilmar Oils and Fats Stockton LLC

Stockton · Notice of Intent

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.