Oxnard Drain

2026 303(d) list Waterbody ID CAR4031100020110724175808 River & Stream Region 4 · Los Angeles

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 4 Appendix A decisions; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 4 pollutants in 4 Appendix A categories; Nutrients (1) · Other Cause (1) · Pathogens (1) · Trash (1); Listing decisions
TMDL information Evidence: State-published: 4 decisions with a TMDL requirement status; Status codes as published: 5A, 5C; TMDL details
Regional Water Board: Region 4 · Los Angeles; River & Stream · Map
Industrial stormwater facilities: 5 report it as their receiving water Evidence: identification corroborated; 209 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: 4
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: 4 — Los Angeles

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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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.

Nutrients (1 decision)

Nutrients: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Nitrogen, Nitrate	Nutrients	5	List on 303(d) list (TMDL required list)	Original	A Source Unknown	100055

Other Cause (1 decision)

Other Cause: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
pH	Other Cause	5	List on 303(d) list (TMDL required list)	Original	A Source Unknown	95001

Pathogens (1 decision)

Pathogens: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Escherichia coli (E. coli)	Pathogens	5	List on 303(d) list (TMDL required list)	Original	A Source Unknown	100248

Trash (1 decision)

Trash: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Trash	Trash	5	List on 303(d) list (being addressed by action other than TMDL)	Original	A Source Unknown	100249

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Escherichia coli (E. coli)	5A	—	Low	—	—
Nitrogen, Nitrate	5A	—	Low	—	—
pH	5A	—	Low	—	—
Trash	5C	—	—	—	2027

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

None published.

Overlapping the waterbody's shape Evidence: spatial

Mugu Lagoon 180701030201
McGrath Lake-Frontal Pacific Ocean 180701030202

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

Facilities whose reported receiving water is identified as this waterbody
Facility	WDID	Status	Distance from reported location	Map
Gills Onions Limited Liability Company	4 56I027908	Active	428 m	map
Canopy Beauty Packaging	4 56I029938	Terminated	1.1 km	map
Cosmetic Specialties International	4 56I028184	Terminated	1.1 km	map
Canopy Beauty Packaging	4 56I031548	Active	1.1 km	map
Columbia Fruit	4 56I030766	Active	1.2 km	map

Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 5 facilities.

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.

Facilities whose reported location is within 1 km of this waterbody
Facility	WDID	Status	Distance	Map
Golden State Mold	4 56NEC006646	Active	664 m	map
Geans Auto Wrecker	4 56I004931	Terminated	671 m	map
CDTi Advanced Materials Inc	4 56NEC004733	Terminated	671 m	map
Costal Fresh Farms Inc	4 56IN606497	No Action Required	692 m	map
Alliance Finishing and Manufacturing	4 56NEC004684	Active	693 m	map
Pac Auto Salvage	4 56I002668	Terminated	693 m	map
De La Calle Co Inc	4 56NEC014436	Active	697 m	map
Kurt MacFarlane Inc dba Rakar AKKT	4 56NEC015634	Active	698 m	map
Rakar Incorporated	4 56NEC012741	Active	701 m	map
Hueneme Boat Works	4 56I013574	Terminated	702 m	map
Birns Inc	4 56IN605348	No Action Required	705 m	map
BIRNS Oceanographics Inc	4 56NEC005542	Active	705 m	map
Seaboard Produce Distributors Inc	4 56NEC006971	Active	712 m	map
Xtreme Soccer	4 56NEC014552	Active	713 m	map
CALIFORNIA ROTATIONAL PLASTICS	4 56NEC005068	Active	713 m	map
UPS Oxnard CAOXN	4 56I020396	Terminated	715 m	map
UPS Oxnard CAOXN	4 56I027555	Terminated	715 m	map
TForce Freight Oxnard	4 56I029592	Terminated	715 m	map
UPS Oxnard CAOXN	4 56NEC003874	Terminated	715 m	map
SIMBA CAL INC	4 56NEC004314	Terminated	718 m	map
Simba Cal Inc	4 56NEC005377	Terminated	718 m	map
Tradewind Seafood Inc	4 56NEC014245	Active	718 m	map
T&T Truck and Crane Oxnard	4 56I027826	Terminated	724 m	map
Dean Foods Vegetable Co	4 56I002994	Terminated	726 m	map
Coastal Green Frozen Foods LLC	4 56I018686	Terminated	726 m	map
Team Transit Mix	4 56I017447	Terminated	745 m	map
Oxnard Ready Mix	4 56I021860	Active	745 m	map
B & B Sales & Imports Inc	4 56I013734	Terminated	745 m	map
Industrial Tools Incorporated	4 56NEC006080	Terminated	747 m	map
Harris Water Conditioning	4 56I023722	Terminated	759 m	map
California Rotational Plastics	4 56IN601910	No Action Required	760 m	map
SANTOS GRANITE LLC	4 56NEC004511	Active	762 m	map
Halls Culligan Water	4 56NEC009984	Active	764 m	map
Kaiser Air Conditioning & Sheet Metal	4 56NEC005209	Active	779 m	map
u store it	4 56NEC007764	Active	787 m	map
Fifth Street Auto Salvage	4 56I027200	Active	790 m	map
Unified Natural Product Solutions Inc	4 56NEC005859	Terminated	791 m	map
CH Carpenter	4 56NEC005495	Active	792 m	map
Standard Industries	4 56I013593	Terminated	793 m	map
Halliburton Energy Services	4 56I016483	Terminated	795 m	map
CIComposites	4 56NEC004883	Active	795 m	map
PKP MACHINING INC	4 56NEC004622	Active	815 m	map
Coastal Green Vegetable Co LLC	4 56I022678	Terminated	820 m	map
Lujan Transport Inc	4 56NNA000803	No Action Required	821 m	map
zamora woodworks	4 56NEC004912	Terminated	851 m	map
Guptill Gears	8 30IN603431	NOI Required	853 m	map
Precision Machine & Tool	8 30IN603432	NOI Required	854 m	map
Cal Sun Produce LLC	4 56I029789	Active	862 m	map
Cal Sun Produce LLC	4 56NEC004798	Terminated	862 m	map
Consolidated Precision Products	4 56I010387	Active	863 m	map

209 facilities, nearest first. Page 4 of 5: previous next

Sources and provenance

Sources behind this page
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.