Water Quality Limited Segment Name
Calleguas Creek Reach 1 (was Mugu Lagoon on 1998 303(d) list) / Chlordane (tissue)1
Copper2
DDT (tissue & sediment)1
Endosulfan (tissue)1
Mercury2
Nickel2
Nitrogen3
PCBs (tissue)1
Sediment Toxicity1
Sedimentation/Siltation1
Calleguas Creek Reach 2 (estuary to Potrero Rd- was Calleguas Creek Reaches 1 and 2 on 1998 303d list) / Ammonia3
ChemA (tissue)1*
Chlordane (tissue)1
Copper, Dissolved2
DDT (tissue & sediment)1
DDT1
Endosulfan (tissue)1
Fecal Coliform
Nitrogen3
PCBs (tissue)1
Sediment Toxicity1
Sedimentation/Siltation1
Toxaphene (tissue & sediment)1
Calleguas Creek Reach 3 (Potrero Road upstream to confluence with Conejo Creek on 1998 303d list) / Chlordane
Chloride
DDT1
Dieldrin1
Nitrate and Nitrite3
Sedimentation/Siltation1
Total Dissolved Solids
Toxaphene1
Calleguas Creek Reach 4 (was Revolon Slough Main Branch: Mugu Lagoon to Central Avenue on 1998 303d list) / Boron
ChemA (tissue)1*
Chlordane (tissue & sediment)1
Chlorpyrifos (tissue)1
DDT (tissue & sediment)1
Dieldrin (tissue)1
Endosulfan (tissue & sediment)1
Fecal Coliform
Nitrate as Nitrate (NO3)3
Nitrogen3
PCBs (tissue)1
Sedimentation/Siltation1
Selenium2
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Toxicity4
Trash
Calleguas Creek Reach 5 (was Beardsley Channel on 1998 303d list) / ChemA (tissue)1*
Chlordane (tissue & sediment)
Chlorpyrifos (tissue)1
Dacthal (sediment)1
DDT (tissue & sediment)1
Dieldrin (tissue)1
Endosulfan (tissue & sediment)1
Nitrogen3
PCBs (tissue)1
Sedimentation/Siltation1
Toxaphene (tissue & sediment)1
Toxicity4
Trash
Calleguas Creek Reach 6 ( was Arroyo Las Posas Reaches 1 and 2 on 1998 303d list) / Ammonia3
Chloride
DDT (sediment)1
Fecal Coliform
Nitrate and Nitrite3
Nitrate as Nitrate (NO3)3
Sedimentation/Siltation1
Sulfates
Total Dissolved Solids
Calleguas Creek Reach 7 (was Arroyo Simi Reaches 1 and 2 on 1998 303d list) / Ammonia3
Boron
Chloride
Fecal Coliform
Organophosphorus Pesticides4
Sedimentation/Siltation1
Sulfates
Total Dissolved Solids
Calleguas Creek Reach 8 (was Tapo Canyon Reach 1) / Boron
Chloride
Sedimentation/Siltation1
Sulfates
Total Dissolved Solids
Calleguas Creek Reach 9A (was lower part of Conejo Creek Reach 1 on 1998 303d list) / ChemA (tissue)1*
Chlordane (tissue)1
DDT (tissue)1
Dieldrin (tissue)1
Endosulfan (tissue)1
Fecal Coliform
Lindane/HCH (tissue)1
Nitrate as Nitrate (NO3)3
Nitrogen, Nitrate3
PCBs (tissue)1
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Calleguas Creek Reach 9B (was part of Conejo Creek Reaches 1 and 2 on 1998 303d list) / Ammonia3
ChemA (tissue)1*
Chloride
DDT (tissue)1
Endosulfan (tissue)1
Fecal Coliform
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Toxicity4
Calleguas Creek Reach 10 (Conejo Creek (Hill Canyon)-was part of Conejo Ck Reaches 2 & 3, and lower Conejo Ck/Arroyo Conejo N Fk on 1998 303d list) / Ammonia3
ChemA (tissue)1*
Chloride
DDT (tissue)1
Endosulfan (tissue)1
Fecal Coliform
Nitrogen, Nitrite3
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Toxicity4
Calleguas Creek Reach 11 (Arroyo Santa Rosa, was part of Conejo Creek Reach 3 on 1998 303d list) / Ammonia3
ChemA (tissue)1*
DDT (tissue)1
Endosulfan (tissue)1
Fecal Coliform
Sedimentation/Siltation1
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Toxicity4
Calleguas Creek Reach 12 (was Conejo Creek/Arroyo Conejo North Fork on 1998 303d list) / Ammonia3
Chlordane (tissue)1
DDT (tissue)1
Sulfates
Total Dissolved Solids
Calleguas Creek Reach 13 (Conejo Creek South Fork, was Conejo Cr Reach 4 and part of Reach 3 on 1998 303d list) / Ammonia3
ChemA (tissue)1*
Chloride
DDT (tissue)1
Endosulfan (tissue)1
Sulfates
Total Dissolved Solids
Toxaphene (tissue & sediment)1
Toxicity4
Duck Pond Agricultural Drains/Mugu Drain/Oxnard Drain No 2 / ChemA (tissue)1*
Chlordane (tissue)1
DDT (tissue & sediment)1
Nitrogen3
Sediment Toxicity1
Toxaphene (tissue)1
Toxicity4
Fox Barranca (tributary to Calleguas Creek Reach 6) / Boron
Sulfates
Total Dissolved Solids
Rio De Santa Clara/Oxnard Drain No. 3 / ChemA (tissue)*
Chlordane (tissue)
DDT (tissue)
Nitrogen
PCBs (tissue)
Sediment Toxicity
Toxaphene (tissue)
* ChemA refers to the sum of the chemicals aldrin, dieldrin. chlordane, endrin, heptachlor, heptachlor epoxide, HCH (including lindane), endosulfan, and toxaphene
1Calleguas Creek, its Tributaries, and Mugu Lagoon OC Pesticides, PCBs, and Siltation TMDL, 2005
2Calleguas Creek, its Tributaries, and Mugu Lagoon Metals and Selenium TMDL, 2007
3Calleguas Creek Nitrogen TMDL, 2003
4Calleguas Creek Toxicity TMDL, 2005