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California State Report

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Water Quality Data Available for this Watershed

California, Calleguas Watershed


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Features

Listed Waters for Reporting Year 1998
California, Calleguas Watershed

Description of this table
NOTE: Click on the underlined "Waterbody Name" to view a Waterbody report.
Waterbody Name Waterbody ID Location Waterbody Type Size Units State TMDL Development Status
Arroyo Las Posas Reach 1 (Lewis Somis Rd To Fox Barranca) CA404.0590R A LS POSAS R1 Rivers and Streams 1.99 miles
Arroyo Las Posas Reach 2 (Fox Barranca To Moorpark Fwy (23)) CA404.0600R A LS POSAS R2 Rivers and Streams 9.62 miles
Arroyo Simi Reach 1 (Moorpark Frwy (23) To Brea Cyn) CA404.0710R ARRYO SIMI R1 Rivers and Streams 7.58 miles
Arroyo Simi Reach 2 (Above Brea Canyon) CA404.0770R ARRYO SIMI R2 Rivers and Streams 11.12 miles
Beardsley Channel (Above Central Avenue) CA404.0160R BEARDSLEY CH Rivers and Streams 6.16 miles
Calleguas Creek Reach 1 (Was Mugu Lagoon On 1998 303(D) List) CA404.0200R CALLEGUAS R1 Rivers and Streams 2.2 miles
Calleguas Creek Reach 1 (Was Mugu Lagoon On 1998 303(D) List) CA404.0200R CALLEGUAS R1 Estuary 344 square miles
Calleguas Creek Reach 2 (Estuary To Potrero Rd- Was Calleguas Creek Reaches 1 And 2 On 1998 303d List) CA404.0220R CALLEGUAS R2 Rivers and Streams 2.3 miles
Calleguas Creek Reach 3 (Potrero Road Upstream To Confluence With Conejo Creek On 1998 303d List) CA404.0260R CALLEGUAS R3 Rivers and Streams 7.7 miles
Calleguas Creek Reach 3 (Potrero Road Upstream To Confluence With Conejo Creek On 1998 303d List) CA404.0260R CALLEGUAS R3 Rivers and Streams 7.7 miles
Channel Islands Harbor CA412.0230B CHANL IS HARB Bays and Harbors .34375 square miles
Channel Islands Harbor CA412.0230B CHANL IS HARB Bays and Harbors .34375 square miles
Conejo Creek / Arroyo Conejo North Fork CA404.0420R CONEJO CK NF Rivers and Streams 6.51 miles
Conejo Creek Reach 1 (Confl Call To Santa Rosa Rd) CA404.0270R CONEJO CK R1 Rivers and Streams 5.8 miles
Conejo Creek Reach 2 (Santa Rosa Rd To Tho. Oaks City Limit) CA404.0340R CONEJO CK R2 Rivers and Streams 2.67 miles
Conejo Creek Reach 3 (Thousand Oaks City Limit To Lynn Rd.) CA404.0400R CONEJO CK R3 Rivers and Streams 5.6 miles
Conejo Creek Reach 4 (Above Lynn Rd.) CA404.0500R CONEJO CK R4 Rivers and Streams 4.98 miles
Duck Pond Agricultural Drains/Mugu Drain/Oxnard Drain No 2 CA404.0010R DUCK PND OX D Rivers and Streams 13.5 miles
Duck Pond Agricultural Drains/Mugu Drain/Oxnard Drain No 2 CA404.0010R DUCK PND OX D Rivers and Streams 13.5 miles
Fox Barranca CA404.0610R FOX BARRANCA Rivers and Streams 3.03 miles
Mandalay Beach CA412.0190C MANDALAY BCH Coastal Shorelines 1.55 miles
Mcgrath Beach CA412.0170C MCGRATH BCH Coastal Shorelines 1.35 miles
Mcgrath Beach CA412.0170C MCGRATH BCH Coastal Shorelines 1.35 miles
Mcgrath Lake (Estuary) CA401.0210L MCGRATH LK ES Estuary 1.35 square miles
Mcgrath Lake (Estuary) CA401.0210L MCGRATH LK ES Lakes, Reservoirs, and Ponds 1.35 acres
Mugu Lagoon CA404.0000E MUGU LAGOON Estuary 4.5 square miles
Port Hueneme Harbor (Back Basins) CA412.0270B PT HN HARB BB Bays and Harbors .078125 square miles
Port Hueneme Harbor (Back Basins) CA412.0270B PT HN HARB BB Bays and Harbors .078125 square miles
Revolon Slough Main Branch (Mugu Lagoon To Central Avenue) CA404.0080R REVOLON SLGH Rivers and Streams 8.9 miles
Rio De Santa Clara/Oxnard Drain No. 3 CA404.0005R R D SNT CLARA Rivers and Streams 2.48 miles
Rio De Santa Clara/Oxnard Drain No. 3 CA404.0005R R D SNT CLARA Rivers and Streams 2.48 miles
Santa Clara River Estuary CA403.0000E SNT CLARA EST Rivers and Streams 2.07 miles
Santa Clara River Estuary CA403.0000E SNT CLARA EST Estuary 2.07 square miles
Santa Clara River Estuary CA403.0000E SNT CLARA EST Estuary 2.07 square miles
Santa Clara River Estuary CA403.0000E SNT CLARA EST Rivers and Streams 2.07 miles
Tapo Canyon Reach 1 CA404.0880R TAPO CYN C R1 Rivers and Streams 5.23 miles

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Causes of Impairment for Reporting Year 1998

California, Calleguas

Description of this table
Cause of Impairment Number of Causes Reported
DDT 16
Total Dissolved Solids (TDS) 12
Chema 11
Sulfates 11
Toxaphene 11
Ammonia 10
Chlordane 9
Endosulfan 9
Toxicity 9
Dacthal 8
Chloride 7
Nitrogen 7
Polychlorinated Biphenyls (PCBs) 7
Algae 6
Sediment Toxicity 6
Nickel 5
Boron 4
Chromium, Total 4
Nitrate/Nitrite 4
Organic Enrichment/Low Dissolved Oxygen 4
Silver 4
Zinc 4
Cadmium 3
Beach Closures 2
Chlorpyrifos 2
Dieldrin 2
High Coliform Count 2
Selenium 2
Trash 2
Copper 1
Lead 1
Mercury 1
Pesticides 1
Polycyclic Aromatic Hydrocarbons (PAHs) (Aquatic Ecosystems) 1
Sedimentation/Siltation 1
Tributyltin 1

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Cumulative TMDLs by Pollutant

California, Calleguas Watershed

This chart includes TMDLs since October 1, 1995.

Description of this table
NOTE: Click on the underlined "Number of TMDLs Completed" value to see a listing of those approved TMDLs for the pollutant.
Pollutant Number of TMDLs Completed Number of Causes of
Impairment Addressed
Diazinon color.gif 34 34
Chlorpyrifos color.gif 32 34
Chloride color.gif 23 23
Toxaphene color.gif 18 19
Ammonia Nitrogen color.gif 15 27
Dieldrin color.gif 14 15
Polychlorinated Biphenyls (PCBs) color.gif 12 13
Chlordane color.gif 11 12
Ammonia color.gif 10 10
DDT in Tissue color.gif 10 10
Sediment Toxicity color.gif 10 10
Siltation color.gif 10 10
Total Dissolved Solids (TDS) color.gif 10 10
Hexachlorocyclohexane (HCH) color.gif 9 9
Sulfates color.gif 9 9
Algae color.gif 8 8
Chema color.gif 8 8
Chlordane in Fish Tissue color.gif 6 6
DDT color.gif 6 6
Nitrogen color.gif 6 6
DDT in Sediment color.gif 5 5
Nitrate/Nitrite color.gif 5 5
Organic Enrichment/Low Dissolved Oxygen color.gif 5 5
PCB(s) in Fish Tissue color.gif 5 5
Toxicity color.gif 5 5
Nickel color.gif 4 4
Chlordane in Sediments color.gif 3 3
Dieldrin in Tissue color.gif 3 3
Enterococcus Bacteria color.gif 3 3
Fecal Coliform color.gif 3 3
Total Coliform color.gif 3 3
Boron color.gif 2 2
Copper color.gif 2 2
Selenium color.gif 2 2
Trash color.gif 2 2
Zinc color.gif 2 2
4,4'-DDD color.gif 1 2
4,4'-DDE color.gif 1 2
4,4'-DDT color.gif 1 2
Bifenthrin color.gif 1 1
Dacthal color.gif 1 1
Endosulfan color.gif 1 1
Escherichia Coli (E. Coli) color.gif 1 1
Mercury color.gif 1 1
Nitrates color.gif 1 2
Nitrite color.gif 1 1
Total and Fecal Coliform color.gif 1 1

Total: 326 TMDLs; 0 Causes of Impairment



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