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State: California
Waterbody ID:
Other ID: CA404.0270R CONEJO CK R1
Location:
State Waterbody Type: Stream/Creek/River
EPA Waterbody Type: Rivers and Streams
Water Size: 5.8
Units: miles
Watershed Name: Calleguas

Waterbody History Report

Data are also available for these years: 1996

1998 Waterbody Report for Conejo Creek Reach 1 (Confl Call To Santa Rosa Rd)


Waterbody Map Not Available
Features

Causes of Impairment for Reporting Year 1998


Description of this table
Cause of Impairment Cause of Impairment Group State TMDL Development Status
Algae Algal Growth TMDL completed
Ammonia Ammonia TMDL completed
Cadmium Metals (other than Mercury) TMDL needed
Chema Other Cause TMDL needed
Chromium, Total Metals (other than Mercury) TMDL needed
DDT Pesticides TMDL needed
Dacthal Pesticides TMDL needed
Endosulfan Pesticides TMDL needed
Nickel Metals (other than Mercury) TMDL completed
Organic Enrichment/Low Dissolved Oxygen Organic Enrichment/Oxygen Depletion TMDL completed
Silver Metals (other than Mercury) TMDL needed
Sulfates Salinity/Total Dissolved Solids/Chlorides/Sulfates TMDL needed
Total Dissolved Solids (TDS) Salinity/Total Dissolved Solids/Chlorides/Sulfates TMDL needed
Toxaphene Pesticides TMDL needed
Toxicity Total Toxics TMDL needed

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TMDLs That Apply to this waterbody


Description of this table
TMDL Document Name TMDL Date TMDL Pollutant Description TMDL Pollutant Source Type Cause(s) of Impairment Addressed
Calleguas Creek, Its Tributaries And Mugu Lagoon Metals Tmdl Mar-26-2007 Copper Point/Nonpoint Source Nickel
Calleguas Creek, Its Tributaries And Mugu Lagoon Metals Tmdl Mar-26-2007 Mercury Point/Nonpoint Source Nickel
Calleguas Creek, Its Tributaries And Mugu Lagoon Metals Tmdl Mar-26-2007 Nickel Point/Nonpoint Source Nickel
Calleguas Creek, Its Tributaries And Mugu Lagoon Metals Tmdl Mar-26-2007 Selenium Point/Nonpoint Source Nickel
Calleguas Creek, Its Tributaries And Mugu Lagoon Metals Tmdl Mar-26-2007 Zinc Nonpoint Source Nickel
Calleguas Creek, Its Tributaries And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Oct-15-2009 Ammonia Nitrogen Point/Nonpoint Source Organic Enrichment/Low Dissolved Oxygen; Algae; Ammonia; Ammonia, Un-ionized
Calleguas Creek, Tributaries, And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Jun-20-2003 Algae Point/Nonpoint Source Ammonia; Ammonia, Un-ionized; Algae; Organic Enrichment/Low Dissolved Oxygen
Calleguas Creek, Tributaries, And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Jun-20-2003 Ammonia Point/Nonpoint Source Organic Enrichment/Low Dissolved Oxygen; Ammonia; Ammonia, Un-ionized; Algae
Calleguas Creek, Tributaries, And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Jun-20-2003 Nitrate/Nitrite Point/Nonpoint Source Algae; Ammonia; Ammonia, Un-ionized; Organic Enrichment/Low Dissolved Oxygen
Calleguas Creek, Tributaries, And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Jun-20-2003 Nitrogen Point/Nonpoint Source Ammonia; Organic Enrichment/Low Dissolved Oxygen; Ammonia, Un-ionized; Algae
Calleguas Creek, Tributaries, And Mugu Lagoon Nitrogen Compounds And Related Effects Tmdl Jun-20-2003 Organic Enrichment/Low Dissolved Oxygen Point/Nonpoint Source Ammonia, Un-ionized; Organic Enrichment/Low Dissolved Oxygen; Ammonia; Algae

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Previous Causes of Impairments Now Attaining All Uses



No causes of impairment are recorded as attaining all uses for this waterbody.

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