California
303d streams
listed by Watershed

Los Angeles Region

Reg Type Water Body Name Hydro Unit TMDL Priority Size Unit Targeted* for TMDL Pollutant or Stressor Probable Sources Start Date End Date
4 B Channel Islands Harbor 403.11 Low 220 A N "Elevated Sediment Levels (Lead, Zinc)" Nonpoint Source    
4 B "Long Beach Harbor, particularly Main Channel, Southeast Basin, West Basin, Pier J, and breakwater" 405.12 Low 3594 A N "Elevated Tissue Levels (DDT, PCBs), Benthic community effects, Elevated Sediment Levels (PAHs), Sediment Toxicity, Fish Consumption Advisory (DDT, PCBs)" Nonpoint Source    
4 B "Los Angeles Harbor: At Main Channel, Fish Harbor, Cabrillo Pier, and Breakwater" 405.12 Low 3785 A N "Elevated Tissue Levels (DDT, PCBs, Zinc, Copper, PAHs), Elevated Sediment Levels (DDT, PCBs, Copper, Zinc, PAHs, Tributlytin), Sediment Toxicity, Beach closures, Fish Consumption Advisory (DDT, PCBs)" Nonpoint/Point Source    
4 B Los Angeles Harbor: Consolidated Slip 405.12 Low 37.13 A N "Elevated Tissue Levels (DDT, Chlordane, PCBs, Tributyltin, Zinc), Sediment Toxicity, Benthic community effects, Elevated Sediment Levels (PAHs, Zinc, Chromium, Lead, DDT, Chlordane, PCBs), Fish Consumption Advisory (DDT, PCBs)" Nonpoint Source    
4 B Los Angeles Harbor: Southwest Slip 405.12 Low 30 A N "Sediment Toxicity, Fish Consumption Advisory (DDT, PCBs)" Nonpoint Source    
4 B Marina del Rey Harbor 405.13 Low 413 A N "Elevated Tissue Levels (Chlordane, DDT, PCBs, Tributyltin, Zinc, Copper, Lead, ChemA, Dieldrin), Elevated Sediment Levels (Zinc, Copper, Lead, Chlordane, DDT), Sediment Toxicity, Benthic community effects, Coliform, Fish Consumption Advisory, Shellfish Ha" Nonpoint Source    
4 B Point Hueneme Harbor 403.11 Low 50 A N "Elevated Sediment Levels (PAHs), Elevated Tissue Levels (DDT, PCBs, Tributyltin, Zinc)" Nonpoint Source    
4 B San Pedro Bay nearshore and offshore zone: Cabrillo Pier area 405.12 Low 10700 A N "Elevated Tissue Levels (DDT), Sediment Toxicity, Elevated Sediment Levels (PAHs, DDT, Zinc, Copper, Chromium), Fish Consumption Advisory (DDT, PCBs)" Nonpoint/Point Source    
4 B "SANTA MONICA BAY NEARSHORE ZONE AND OFFSHORE ZONE: Hyperion 5 mile and 7 mile outfall area, Joint Water Pollution Control Plant outfall area, Palos Verdes shelf, Marina del Rey area, Santa Monica Pier area, Manhattan Beach area, Redondo Pier area, Malibu " various Low 16640 A N "Sediment Toxicity, Elevated Tissue Levels (Silver, DDT, Chromium, Lead, PCBs), Elevated Sediment Levels (Cadmium, Copper, Lead, Mercury, Nickel, Zinc, DDT, PCBs, Chlordane, PAHs), Debris, Fish Consumption Advisories" Nonpoint/Point Source    
4 B Santa Monica Bay/Southern L.A. County beaches: Ventura County line to Long Beach City line various Low 19200 A N "High coliform counts and/or beach closures, Fish Consumption Advisories" Nonpoint Source    
4 B Ventura Harbor: Ventura Keys at Arrundell Barranca 403.11 Low 40 A N Coliform Nonpoint Source    
4 C Mandalay Beach 403.11 Low 1.55 M N Beach Closures Nonpoint Source    
4 C McGrath Beach 403.11 Low 1.35 M N "Coliform, Beach Closures" Nonpoint Source    
4 C Santa Clara River Estuary Beach/Surfers Knoll 403.11 Low 0.56 M N Coliform Nonpoint Source    
4 E Ballona Creek Estuary 405.13 Low 2.5 M N "Sediment Toxicity, Elevated Sediment Levels (Lead, Zinc, DDT, Arochlor, PCBs, PAHs, Chlordane), Elevated Tissue Levels (Chlordane, PCBs), Coliform, Shellfish Harvesting Advisory" Nonpoint/Point Source    
4 E Dominguez Channel (includes estuary) 405.12 Low 8.4 M N "Ammonia, Copper, Lead, Elevated Sediment Levels (Chromium, Zinc, DDT, PAHs), Elevated Tissue Levels (Aldrin, Chlordane, DDT, Dieldrin, PCBs, ChemA, Lead), Benthic community impairment, Coliform" Nonpoint/Point Source    
4 E Malibu Lagoon 404.21 Low 32.5 A N "Benthic Community, Elevated Tissue Levels (Arsenic, Chromium, Nickel, Selenium, Lead, Silver), Eutrophic, Coliform, Enteric Viruses, swimming restriction, Shellfish Harvesting Advisory" Nonpoint/Point Source    
4 E McGrath Lake (Estuary) 403.11 Low 1.35 M N "Elevated Sediment Levels (DDT, Chlordane, total pesticides), Sediment Toxicity" Nonpoint Source    
4 E Mugu Lagoon 403.11 Low 4.5 A N "Copper,Mercury, Nickel, Zinc, Bird Reproductivity (DDT), Elevated Tissue Levels (Chlordane, DDT, Endosulfan, Dacthal, Toxaphene, PCBs, Arsenic, Cadmium, Silver), Nitrogen, Elevated Sediment Levels (DDT, Toxaphene), Sediment Toxicity, Excessive Sediment" Nonpoint/Point Source    
4 E San Gabriel River Estuary 405.15 Low 2.95 M N "Elevated Tissue Levels (Arsenic, Copper, Silver, Chromium), Toxicity, Abnormal Fish Histology" Nonpoint/Point Source    
4 E Santa Clara River Estuary 403.11 Low 2.07 M N Coliform Nonpoint Source    
4 E Ventura River Estuary 402.10 Low 0.35 M N "Elevated Tissue Levels (DDT), Eutrophic, Trash, Algae" Nonpoint/Point Source    
4 L Calabasas Lake 405.21 Low 28 A N "Ammonia, Elevated Tissue Levels (DDT, Copper, Zinc, Cadmium), Eutrophic, Low Dissolved Oxygen, pH, Odors" Nonpoint Source    
4 L Crystal Lake 405.43 Low 5.8 A N Low Dissolved Oxygen Nonpoint Source    
4 L Echo Park Lake 405.15 Low 23 A N "Ammonia, Copper, Lead, Eutrophic, Elevated Tissue Levels (PCBs), pH, Odors, Trash, Algae" Nonpoint Source    
4 L El Dorado Lakes 405.15 Low 220 A N "Ammonia, Copper, Lead, Eutrophic, Elevated Tissue Levels (Mercury, Chromium), pH, Algae" Nonpoint Source    
4 L Elizabeth Lake 403.51 Low 194 A N "pH, Eutrophic, Low Dissolved Oxygen, Trash" Nonpoint Source    
4 L Lake Hughes 403.51 Low 34 A N "Eutrophic, Fish kills, Trash, Odors, Algae" Nonpoint Source    
4 L Lake Lindero 404.23 Low 13.56 A N "Chloride, Specific Conductivity, Selenium, Eutrophic, Elevated Tissue Levels (Selenium, Oxadiazon), Odors, Trash, Algae" Nonpoint Source    
4 L Lake Sherwood 404.26 Low 213 A N "Ammonia, Low Dissolved Oxygen, Eutrophic, Elevated Tissue Levels (Mercury), Algae" Nonpoint Source    
4 L Legg Lake 405.41 Low 70 A N "Copper, Lead, Ammonia, pH, Odors, Trash" Nonpoint Source    
4 L Lincoln Park Lake 405.15 Low 7 A N "Ammonia, Lead, Eutrophic, Low Dissolved Oxygen, Odors, Trash" Nonpoint Source    
4 L Machado Lake (Harbor Park Lake) 405.12 Low 45.2 A N "Ammonia, Eutrophic, Elevated Tissue Levels (Chlordane, ChemA, DDT, dieldrin, PCBs), Odors, Trash, Algae, Fish Consumption Advisory (DDT, Chlordane)" Nonpoint Source    
4 L Malibou Lake 404.24 Low 69 A N "Low Dissolved Oxygen, Eutrophic, Elevated Tissue Levels (PCBs, Chlordane, Cadmium, Copper, Zinc), Algae" Nonpoint Source    
4 L Matilija Reservoir 402.20 Low 198 A N Fish barriers Nonpoint Source    
4 L Munz Lake 403.51 Low 15 A N "Eutrophic, Trash" Nonpoint Source    
4 L Peck Rd Park Lake 405.41 Low 166 A N "Low Dissolved Oxygen, Lead, Elevated Tissue Levels (DDT, Chlordane), Odors, Trash" Nonpoint Source    
4 L Puddingstone Reservoir 405.52 Low 382 A N "Low Dissolved Oxygen, Elevated Tissue Levels (PCBs, Chlordane, DDT, Dacthal, Oxadiazon, Mercury, Arsenic)" Nonpoint Source    
4 L Santa Fe Dam Park Lake 405.41 Low 70 A N "Lead, Copper, pH" Nonpoint Source    
4 L Westlake Lake 404.25 Low 186 A N "Ammonia, Low Dissolved Oxygen, Copper, Lead, Eutrophic, Elevated Tissue Levels (Chlordane, Cadmium, Copper, Zinc), Algae" Nonpoint Source    
4 R Aliso Canyon Wash 405.21 Low 10.13 M N Selenium Nonpoint Source    
4 R Arroyo Las Posas Reach 1 and 2 403.62 Low 9.62 M N "Ammonia, Elevated Sediment Levels (DDT)" Nonpoint/Point Source    
4 R Arroyo Seco Reach 1 and 2 (LA River to Devils Gate Dam) 405.15 Low 7.02 M N "Coliform, Trash, Algae" Nonpoint Source    
4 R Arroyo Simi (Moorpark Fwy(23) to Brea Canyon) 403.62 Low 7.58 M N "Elevated Tissue Levels (Chromium, Nickel, Silver, Zinc, Selenium)" Nonpoint/Point Source    
4 R Ashland Avenue Drain 405.13 Low 0.57 M N "Low Dissolved Oxygen, Toxicity, Coliform" Nonpoint Source    
4 R Ballona Creek 405.13 Low 4.3 M N "Lead, Sediment Toxicity, Toxicity, Elevated Tissue Levels (Arsenic, Chlordane, DDT, Dieldrin, PCBs, ChemA, Chromium, Copper, Lead, Silver, Zinc), Elevated Sediment Levels (Cadmium, Tributyltin, Copper, Lead, Silver), Coliform, Trash, Enteric Viruses" Nonpoint/Point Source    
4 R Bell Creek 405.21 Low 9.81 M N Coliform Nonpoint/Point Source    
4 R Burbank Western Channel 405.21 Low 6.35 M N "Ammonia, Cadmium, Trash, Scum, Algae, Odors" Nonpoint/Point Source    
4 R "Calleguas Creek, Reach 1 and 2 (Estuary to Arroyo Los Posas)" 403.11 -403.12 Low 4.5 M N "Nitrate and Nitrite, Ammonia, Toxicity, Elevated Sediment Levels (DDT, Toxaphene), Elevated Tissue Levels (PCBs, DDT, Toxaphene, ChemA, Chlordane, Dacthal, Endosulfan), Nitrogen, Sediment Toxicity" Nonpoint/Point Source    
4 R Compton Creek 405.15 Low 8.52 M N "Copper, Lead, pH, Coliform" Nonpoint/Point Source    
4 R Conejo Creek/Arroyo Conejo (Confluence Calleguas to above Lynn Rd) 403.12 -403.64 Low 5.8 M N "Low Dissolved Oxygen, Ammonia, Toxicity, Elevated Tissue Levels (Endosulfan, Toxaphene, DDT, ChemA, dacthal, Silver, Cadmium, Chromium, Nickel), Elevated Sediment Levels (Toxaphene), Algae" Nonpoint/Point Source    
4 R "Conejo Creek/Arroyo Conejo, North Fork" 403.64 Low 6.51 M N "Ammonia, Elevated Tissue Levels (chlordane, DDT)" Nonpoint/Point Source    
4 R Coyote Creek 405.15 Low 13.45 M N "Ammonia, Lead, Toxicity, Abnormal Fish Histlogy, Chloride, Elevated Tissue Levels (Chromium, Copper, Silver), Coliform, Algae" Nonpoint/Point Source    
4 R Duck Pond Oxnard Drain (Tributary from duck ponds to Mugu Lagoon) 403.11 Low 13.5 M N "Toxicity, Sediment Toxicity, Elevated Sediment Levels (DDT), Elevated Tissue Levels (Chlordane, Toxaphene, DDT, ChemA), Nitrogen" Nonpoint Source    
4 R Las Virgenes Creek 404.22 High 11.47 M Y Nutrients (Algae) Nonpoint Source    
4 R Las Virgenes Creek 404.22 Low 11.47 M N "Selenium, Low Dissolved Oxygen, Coliform, Scum, Trash" Nonpoint Source    
4 R Lindero Creek 404.23 Low 7 M N "Selenium, Coliform, Trash, Algae, Scum" Nonpoint Source    
4 R Los Angeles River Reach 1 (upstream Carson St to estuary) 405.12 High 2.01 M Y "Ammonia, Nutrients (Algae)" Nonpoint/Point Source    
4 R Los Angeles River Reach 1 (upstream Carson St to estuary) 405.12 Low 2.01 M N "pH, Lead, Coliform, Trash, Scum" Nonpoint/Point Source    
4 R Los Angeles River Reach 2 (Figueroa St to upstream Carson St) 405.15 High 19.37 M Y "Ammonia, Nutrients (Algae)" Nonpoint/Point Source    
4 R Los Angeles River Reach 2 (Figueroa St to upstream Carson St) 405.15 Low 19.37 M N "Lead, Coliform, Trash, Scum, Odors, Oil" Nonpoint/Point Source    
4 R Los Angeles River Reach 3 (Riverside Drive to Figueroa St) 405.21 High 7.24 M Y "Ammonia, Nutrients (Algae)" Nonpoint/Point Source    
4 R Los Angeles River Reach 3 (Riverside Drive to Figueroa St) 405.21 Low 7.24 M N "Trash, Odors, Scum" Nonpoint/Point Source    
4 R Los Angeles River Reach 4 (Sepulveda Dam to Riverside Dr) 405.21 High 11.84 M Y "Ammonia, Nutrients (Algae)" Nonpoint/Point Source    
4 R Los Angeles River Reach 4 (Sepulveda Dam to Riverside Dr) 405.21 Low 11.84 M N "Lead, Coliform, Trash, Scum, Odors" Nonpoint/Point Source    
4 R Los Angeles River Reach 5 (within Sepulveda Basin) 405.21 High 1.93 M Y "Ammonia, Nutrients (Algae)" Nonpoint/Point Source    
4 R Los Angeles River Reach 5 (within Sepulveda Basin) 405.21 Low 1.93 M N "Elevated Tissue Levels (Silver, Chlorpyrifos, ChemA), Trash, Scum, Odor, Oil" Nonpoint/Point Source    
4 R Los Angeles River Reach 6 (upstream of Sepulveda Flood Control Basin) 405.21 Low 6.17 M N "1,1-DCE, PCE, TCE, Coliform" Nonpoint Source    
4 R Malibu Creek (Lagoon to Malibou Lake) 404.21 Low 9.5 M N "Fish barrier, Elevated Tissue Levels (Arsenic, Chromium, Nickel, Cadmium, Selenium, Silver, Lead, Copper), Trash, Coliform, Scum" Nonpoint/Point Source    
4 R Malibu Creek (Lagoon to Malibou Lake) 404.21 High 9.5 M Y Nutrients (Algae) Nonpoint/Point Source    
4 R Matilija Creek Reach 1 (Jct. with N. Fork to Reservoir) 402.20 Low 1.6 M N Fish barriers Nonpoint Source    
4 R Matilija Creek Reach 2 (Above Reservoir) 402.20 Low 16.8 A N Fish barriers Nonpoint Source    
4 R Medea Creek Reach 1 (Lake to confluence with Lindero) 404.23 Low 5.44 M N "Selenium, Coliform, Trash, Algae" Nonpoint Source    
4 R Medea Creek Reach 2 (Above confluence with Lindero) 404.24 Low 3.01 M N "Selenium, Coliform, Trash, Algae" Nonpoint Source    
4 R Monrovia Canyon Creek 405.33 Low 2.9 M N Lead Nonpoint Source    
4 R Palo Comado 404.23 Low 7.78 M N Coliform Nonpoint Source    
4 R Pico Kenter Drain 405.13 Low 4.77 M N "Ammonia, Copper, Lead, Toxicity, PAHs, Coliform, Enteric Viruses, Trash" Nonpoint Source    
4 R Revolon Slough and Beardsley Channel/Wash 403.11 and 403.61 Low 8.9 M N "Nitrate and Nitrite, Selenium, Toxicity, Elevated Sediment Levels (Toxaphene, Chlordane, DDT, Endosulfan, Dacthal, Elevated Tissue Levels (Endosulfan, Chlordane, Toxaphene, DDT, ChemA, Dieldrin, Chlorpyrifos, Hexachlorobenzene, PCBs, Dacthal), Nitrogen, A" Nonpoint Source    
4 R Rio de Santa Clara (tributary to Mugu Lagoon 403.11 Low 2.48 M N "Sediment Toxicity, Elevated Tissue Levels (Chlordane, Toxaphene, DDT, ChemA, PCBs), Nitrogen" Nonpoint Source    
4 R Rio Hondo Reach 1 (Santa Ana Fwy to Los Angeles River) 405.15 Low 4.19 M N "Ammonia, Copper, Lead, Zinc, pH, Coliform, Trash" Nonpoint/Point Source    
4 R Rio Hondo Reach 2 (from Whittier Narrows Flood Control Basin to Spreading Grounds) 405.15 Low 2.71 M N "Ammonia, Coliform" Nonpoint/Point Source    
4 R San Gabriel River East Fork 405.43 Low 12 M N Trash Nonpoint Source    
4 R San Gabriel River Reach 1 (Estuary to Firestone) 405.15 Low 8.73 M N "Ammonia, Lead, Toxicity, Abnormal Fish Histology, Coliform, Algae" Nonpoint/Point Source    
4 R San Gabriel River Reach 2 (Firestone to Whittier Narrows Dam) 405.15 Low 9.99 M N "Ammonia, Lead, Coliform" Nonpoint/Point Source    
4 R San Gabriel River Reach 3 (Whittier Narrows to Ramona) 405.41 Low 3.52 M N Toxicity Nonpoint/Point Source    
4 R San Jose Creek Reach 1 (SG Confluence to Temple St.) 405.41 Low 13.12 M N "Ammonia, Lead, Toxicity, Coliform, Algae" Nonpoint/Point Source    
4 R San Jose Creek Reach 2 (Temple St. to I-10 at White Ave.) 405.41 Low 4.93 M N "Ammonia, Lead, Toxicity, Coliform, Algae" Nonpoint/Point Source    
4 R Santa Clara River (W Pier Hwy 99 to Bonquet Cyn Rd Bridge) 403.51 Low 3.42 M N "Ammonia, Coliform" Nonpoint/Point Source    
4 R Santa Monica Channel/Canyon 405.13 Low 2.9 M N "Lead, Coliform" Nonpoint Source    
4 R Sepulveda Channel/Canyon 405.13 Low 6.8 M N "Ammonia, Lead, Coliform" Nonpoint Source    
4 R Stokes Creek 404.22 Low 5.33 M N Coliform Nonpoint Source    
4 R Topanga Canyon Creek 404.11 Low 8.6 M N Lead Nonpoint Source    
4 R Torrance Carson Channel 405.12 Low 12.6 M N "Copper, Lead, Coliform" Nonpoint Source    
4 R Triunfo Cyn Creek Reach 1 404.24 Low 4.06 M N "Mercury, Lead" Nonpoint Source    
4 R Triunfo Cyn Creek Reach 2 404.25 Low 1.98 M N "Mercury, Lead" Nonpoint Source    
4 R Tujunga Wash (downstream Hansen Dam to Los Angeles River) 405.21 Low 9.68 M N "Ammonia, Copper, Coliform, Trash, Scum. Odors" Nonpoint Source    
4 R Ventura River Reach 1 and 2 (Estuary to Weldon Cyn) 402.10 Low 4.82 M N "Elevated Tissue Levels (Copper, Selenium, Silver, Zinc), Algae" Nonpoint/Point Source    
4 R Ventura River Reach 3 and 4 (Weldon Cyn to Camino Cielo) 402.10 Low 15.72 M N "Water diversion, Pumping" Nonpoint Source    
4 R Verdugo Wash Reach 1 and 2 405.21 Low 8.96 M N "Coliform, Trash, Algae" Nonpoint Source    
4 R Walnut Creek Wash 405.41 Low 13.9 M N "pH, Toxicity" Nonpoint/Point Source    
4 R Wilmington Drain 405.12 Low 4.9 M N "Ammonia, Copper, Lead, Coliform" Nonpoint Source    
4 T Ballona Creek Wetland 405.13 Low 86 A N "Elevated Tissue Levels (Arsenic, Lead, Chromium), Habitat alteration, Exotic vegetation, Reduced tidal flushing, Trash, Hydromodification" Nonpoint Source    
4 T Colorado Lagoon 405.12 Low 13.6 A N "Elevated Sediment Levels (Lead, Zinc, Chlordane, PAHs), Elevated Tissue Levels (Chlordane, DDT, Dieldrin, PCBs, Silver, Lead, Copper, ChemA), Sediment Toxicity" Nonpoint Source    
4 T Los Cerritos Channel 405.12 Low 16 A N "Ammonia, Copper, Lead, Zinc, Coliform" Nonpoint Source