← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Lake Jennings

Waterbody ID (WBID)
CAL9071200020190614046308
County / counties
San Diego
Regional Water Board
Regional Board 9 - San Diego Region
Waterbody type
Lake & Reservoir
Condition category
Category 5 — 303(d) listed, TMDL required
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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
MercuryMetals128235List on 303(d) list (TMDL required list)Revised5A — 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
CAL9071200020190614046308
CALWNUM
4907.12
WBD code
180703040703
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

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

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Watershed
—
Assessed size
157.56 Acres

Derived facility associations

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

Derived
74Weld

El Cajon · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Altech Machining Inc

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Aluminess Products

San Diego · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Anza Knives

El Cajon · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Artistic Marble Granite Inc

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Aymar Engineering

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Bare Steel Inc

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Bill Signs Trucking LLC

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Blue Star Steel

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

BORNEMAN TRUCKING INC

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

C W Mcgrath Inc Tunnel Hill Gr

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CALIFORNIA CRAFTED MARBLE

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CALIFORNIA CRAFTED MARBLE

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CM Manufacturing

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Computer Integrated Machining Inc

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Current Ways Inc

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Custom Aircraft Parts

El Cajon · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Diamond Concrete Supply

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

DM Miller Trucking Inc

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

DS Fibertech Corporation

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

East County Ready Mix & Materials Corp

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Eddy Pump Corp

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

FORTIN RACING INC

El Cajon · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Future Machine

Santee · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Grape Sales

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Hanson Aggregates Channel Rd

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Jimco Racing

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Johns Trucking Inc

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

King of Stone

El Cajon · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Lakeside USD Pupil Trans

Lakeside · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Martinez Tile Granite

Lakeside Farms · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

MAXIMA RACING OILS

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Oldcastle Precast Inc

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

PEDROZA READY MIX

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pepsi Beverages North America

Lakeside · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Quality Controlled Mfg Inc

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Quality Recycling Inc

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Quality Recycling Inc

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Quiroz Recycling

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ricks Machine Shop

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Rust Sons Trucking

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

San Diego Laser Cutting

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Santee - Mission Gorge Rd

Santee · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Santee - Woodside Ave (Site 1984)

Santee · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Santee Sch Dist Bus Mainten Fac

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Scantibodies Laboratory Inc

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

SoCal Machine Inc

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

SoCal Truck Accessories & Equipment

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Southland Envelope Company

Lakeside · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Superior Ready Mix

Lakeside · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Swift Powder Coat Inc

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Sycamore Landfill

San Diego · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Terra Nova Technologies Inc

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Torres General Inc

Santee · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Turvey DG Pit

Alpine · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Unique Drawer Boxes Incorporated dba Drawer Depot

El Cajon · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Vision Systems

Santee · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Vortex Engineering LLC

Santee · 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.