California
303d streams
listed by Watershed
Central Coast Region
| Reg | Type | Water Body Name | Hydro Unit | TMDL Priority | Size | Unit | Targeted* for TMDL | Pollutant or Stressor | Probable Sources | Start Date | End Date |
| 3 | B | Monterey Harbor | 309.50 | Low | 74 | A | Y | Metals | Railroad Slag Pile | ||
| 3 | B | Monterey Harbor | 309.50 | Low | 74 | A | Y | Unknown Toxicity | Nonpoint Source | ||
| 3 | B | Morro Bay | 310.22 | Low | 100 | A | N | Metals | "Nonpoint Source, Boat Discharge" | ||
| 3 | B | Morro Bay | 310.22 | Low | 50 | A | N | Pathogens | Nonpoint Source | ||
| 3 | B | Morro Bay | 310.22 | High | 100 | A | Y | Siltation | Agriculture | 12/97 | 12/98 |
| 3 | B | Moss Landing Harbor | 306.00 | Low | 40 | A | N | Pathogens | Boat Discharge | ||
| 3 | B | Moss Landing Harbor | 306.00 | Low | 40 | A | N | Pesticides | "Specialty Crop Production, Agriculture, Irrigated Crop Production" | ||
| 3 | B | Moss Landing Harbor | 306.00 | Medium | 160 | A | Y | Siltation | Unknown Source | 12/98 | 12/99 |
| 3 | C | Monterey Bay South | 309.50 | Low | 10 | M | Y | Metals | Surface Mining | ||
| 3 | C | Monterey Bay South | 309.50 | Low | 10 | M | Y | Pesticides | Agriculture | ||
| 3 | E | Carpinteria Marsh (El Estero Marsh) | 315.34 | Low | 80 | A | Y | Nutrients | Agriculture | ||
| 3 | E | Carpinteria Marsh (El Estero Marsh) | 315.34 | Low | 80 | A | N | "Organic Enrichment, Low Dissolved Oxygen" | Construction | ||
| 3 | E | Carpinteria Marsh (El Estero Marsh) | 315.34 | Low | 80 | A | N | Other Habitat Alterations | Nonpoint Source | ||
| 3 | E | Carpinteria Marsh (El Estero Marsh) | 315.34 | Low | 80 | A | N | Priority Organics | Urban Runoff/Storm Sewers | ||
| 3 | E | Carpinteria Marsh (El Estero Marsh) | 315.34 | Low | 80 | A | Y | Siltation | "Storm Sewers, Construction" | ||
| 3 | E | Elkhorn Slough | 306.00 | Low | 500 | A | N | Pathogens | Nonpoint Source | ||
| 3 | E | Elkhorn Slough | 306.00 | Medium | 500 | A | Y | Pesticides | "Agriculture, Nonpoint Source" | 12/98 | 12/99 |
| 3 | E | Elkhorn Slough | 306.00 | Medium | 50 | A | Y | Siltation | Agriculture | ||
| 3 | E | Goleta Slough/Estuary | 315.31 | Low | 200 | A | Y | Metals | Industrial Point Sources | ||
| 3 | E | Goleta Slough/Estuary | 315.31 | Low | 200 | A | N | Pathogens | Urban Runoff/Storm Sewers | ||
| 3 | E | Goleta Slough/Estuary | 315.31 | Low | 200 | A | Y | Priority Organics | Nonpoint Source | ||
| 3 | E | Goleta Slough/Estuary | 315.31 | Low | 200 | A | Y | Siltation | Construction | ||
| 3 | E | Old Salinas River Estuary | 309.10 | Low | 50 | A | N | Nutrients | Agriculture | ||
| 3 | E | Old Salinas River Estuary | 309.10 | Low | 50 | A | Y | Pesticides | Agriculture | ||
| 3 | E | Salinas River Lagoon (North) | 309.10 | Low | 75 | A | N | Nutrients | Nonpoint Source | ||
| 3 | E | Salinas River Lagoon (North) | 309.10 | Low | 75 | A | Y | Pesticides | Agriculture | ||
| 3 | E | Salinas River Lagoon (North) | 309.10 | Low | 75 | A | N | Siltation | Nonpoint Source | ||
| 3 | E | San Lorenzo River Estuary | 304.12 | Low | 20 | A | N | Pathogens | "Natural Sources, Urban Runoff/ Storm Sewers" | ||
| 3 | E | Watsonville Slough | 305.10 | Low | 300 | A | N | Oil and Grease | Urban Runoff/Storm Sewers | ||
| 3 | E | Watsonville Slough | 305.10 | Low | 300 | A | N | Pathogens | "Urban Runoff/Storm Sewers, Source Unknown" | ||
| 3 | E | Watsonville Slough | 305.10 | Low | 300 | A | Y | Pesticides | Agriculture | ||
| 3 | E | Watsonville Slough | 305.10 | Low | 300 | A | Y | Siltation | "Agriculture, Storm Sewers" | ||
| 3 | L | Nacimiento Reservoir | 309.82 | Low | 5370 | A | Y | Metals | "Natural Sources, Resource Extraction" | ||
| 3 | R | Aptos Creek | 304.13 | Low | 4 | M | N | Pathogens | "Land Development, Urban Runoff/Storm Sewers, Septic Tanks" | ||
| 3 | R | Aptos Creek | 304.13 | Low | 4 | M | Y | Siltation | "Land Disturbed Sites, Channel Erosion" | ||
| 3 | R | Blanco Drain | 309.10 | Low | 8 | M | Y | Pesticides | Agriculture | ||
| 3 | R | Carbonera Creek | 304.12 | Low | 10 | M | N | Nutrients | Construction | ||
| 3 | R | Carbonera Creek | 304.12 | Low | 10 | M | N | Pathogens | "Nonpoint Source, Septic Tanks" | ||
| 3 | R | Carbonera Creek | 304.12 | Low | 10 | M | N | Siltation | Nonpoint Source | ||
| 3 | R | Carpinteria Creek | 315.34 | Low | 6 | M | Y | Pathogens | "Agriculture, Septic Tanks, Land Disposal" | ||
| 3 | R | Chorro Creek | 310.22 | Low | 11 | M | N | Metals | Resource Extraction | ||
| 3 | R | Chorro Creek | 310.22 | High | 11 | M | Y | Siltation | Agriculture | 12/97 | 12/98 |
| 3 | R | Las Tablas Creek | 309.81 | Low | 13 | M | Y | Metals | Surface Mining | ||
| 3 | R | "Las Tablas Creek, North Fork" | 309.81 | Low | 5 | M | Y | Metals | Surface Mining | ||
| 3 | R | "Las Tablas Creek, South Fork" | 309.81 | Low | 4 | M | Y | Metals | Surface Mining | ||
| 3 | R | Llagas Creek | 305.30 | Medium | 22 | M | Y | Nutrients | "Habitat Modification, Agriculture, Urban Runoff/Storm Sewers, Hydromodification, Municipal Point Sources" | ||
| 3 | R | Llagas Creek | 305.30 | Medium | 22 | M | Y | Siltation | "Hydromodification, Habitat Modification, Agriculture" | ||
| 3 | R | Lompico Creek | 304.12 | Low | 5 | M | N | Nutrients | Septic Tanks | ||
| 3 | R | Lompico Creek | 304.12 | Low | 5 | M | N | Pathogens | "Nonpoint Source, Natural Sources" | ||
| 3 | R | Lompico Creek | 304.12 | Low | 5 | M | N | Siltation | "Construction, Channelization" | ||
| 3 | R | Los Osos Creek | 310.22 | Low | 10 | M | N | Priority Organics | Urban Runoff/Storm Sewers | ||
| 3 | R | Los Osos Creek | 310.22 | High | 10 | M | Y | Siltation | Agricultural Grazing | 12/97 | 12/98 |
| 3 | R | Mission Creek | 315.32 | Low | 9 | M | Y | Pathogens | Urban Runoff/Storm Sewers | ||
| 3 | R | Mission Creek | 315.32 | Low | 9 | M | Y | Unknown Toxicity | Urban Runoff/Storm Sewers | ||
| 3 | R | Old Salinas River | 309.10 | Low | 5 | M | Y | Pesticides | Agriculture | ||
| 3 | R | Pajaro River | 305.00 | Medium | 49 | M | Y | Nutrients | "Habitat Modification, Urban Runoff/Storm Sewers, Hydromodification, Agriculture" | ||
| 3 | R | Pajaro River | 305.00 | Medium | 49 | M | Y | Siltation | "Hydromodification, Agriculture, Habitat Modification" | ||
| 3 | R | Rider Gulch Creek | 305.10 | Low | 2 | M | Y | Siltation | Agriculture | ||
| 3 | R | Salinas Reclamation Canal | 309.20 | Low | 20 | M | Y | Pesticides | Agriculture | ||
| 3 | R | Salinas Reclamation Canal | 309.20 | Low | 20 | M | Y | Priority Organics | "Nonpoint Source, Agriculture" | ||
| 3 | R | Salinas River | 309.10 | Low | 50 | M | N | Nutrients | Agriculture | ||
| 3 | R | Salinas River | 309.10 | Low | 50 | M | Y | Pesticides | Agriculture | ||
| 3 | R | Salinas River | 309.10 | Low | 50 | M | N | Salinity/Total Dissolved Solids/Chlorides | Agriculture | ||
| 3 | R | Salinas River | 309.10 | Low | 90 | M | N | Siltation | Agriculture | ||
| 3 | R | San Lorenzo River | 304.12 | High | 25 | M | Y | Nutrients | Septic Tanks | 12/94 | 12/95 |
| 3 | R | San Lorenzo River | 304.12 | High | 25 | M | Y | Siltation | "Silviculture, Urban Runoff/Storm Sewers, Construction, Land Development" | 12/94 | 12/2000 |
| 3 | R | San Luis Obispo(Below West Marsh Street) | 310.24 | High | 9 | M | Y | Nutrients | "Municipal Point Sources, Agriculture" | 12/95 | 12/96 |
| 3 | R | San Luis Obispo(Below West Marsh Street) | 310.24 | Low | 9 | M | N | Pathogens | Urban Runoff/Storm Sewers | ||
| 3 | R | San Luis Obispo(Below West Marsh Street) | 310.24 | Low | 9 | M | N | Priority Organics | Industrial Point Sources | ||
| 3 | R | Santa Ynez River | 314.00 | Low | 70 | M | Y | Nutrients | Nonpoint Source | ||
| 3 | R | Santa Ynez River | 314.00 | Low | 70 | M | Y | Salinity/Total Dissolved Solids/Chlorides | Agriculture | ||
| 3 | R | Santa Ynez River | 314.00 | Low | 70 | M | N | Siltation | "Urban Runoff/Storm Sewers, Resource Extraction" | ||
| 3 | R | Shingle Mill Creek | 304.12 | Low | 2 | M | N | Nutrients | "Septic Tanks, Urban Runoff/ Storm Sewers" | ||
| 3 | R | Shingle Mill Creek | 304.12 | Low | 2 | M | N | Siltation | "Nonpoint Source, Construction" | ||
| 3 | R | Valencia Creek | 304.13 | Low | 7 | M | N | Pathogens | "Agriculture, Septic Tanks" | ||
| 3 | R | Valencia Creek | 304.13 | Low | 7 | M | Y | Siltation | "Construction, Agriculture" | ||
| 3 | R | "Waddell Creek, East Branch" | 304.11 | Low | 3 | M | N | Nutrients | Municipal Point Sources | ||
| 3 | W | Espinosa Slough | 309.10 | Low | 320 | A | N | Nutrients | Storm Sewer | ||
| 3 | W | Espinosa Slough | 309.10 | Low | 320 | A | Y | Pesticides | "Agriculture, Urban Runoff/ Storm Sewers" | ||
| 3 | W | Espinosa Slough | 309.10 | Low | 320 | A | Y | Priority Organics | Nonpoint Source | ||
| 3 | W | Moro Cojo Slough | 309.10 | Low | 345 | A | Y | Pesticides | "Agriculture, Construction" | ||
| 3 | W | Moro Cojo Slough | 309.10 | Low | 345 | A | Y | Siltation | Agriculture | ||
| 3 | W | Salinas River Refuge Lagoon (South) | 309.10 | Low | 163 | A | N | Nutrients | Agriculture | ||
| 3 | W | Salinas River Refuge Lagoon (South) | 309.10 | Low | 163 | A | Y | Pesticides | Agriculture | ||
| 3 | W | Salinas River Refuge Lagoon (South) | 309.10 | Low | 163 | A | N | Salinity/Total Dissolved Solids/Chlorides | Agriculture | ||
| 3 | W | Schwan Lake | 304.12 | Low | 32 | A | N | Nutrients | Nonpoint Source | ||
| 3 | W | Schwan Lake | 304.12 | Low | 32 | A | N | Pathogens | Urban Runoff/Storm Sewers | ||
| 3 | W | Soquel Lagoon | 304.13 | Low | 2 | A | N | Nutrients | Septic Tanks | ||
| 3 | W | Soquel Lagoon | 304.13 | Low | 2 | A | Y | Pathogens | Nonpoint Source | ||
| 3 | W | Soquel Lagoon | 304.13 | Low | 2 | A | N | Siltation | Construction | ||
| 3 | W | Tembladero Slough | 309.10 | Low | 150 | A | N | Nutrients | Nonpoint Source | ||
| 3 | W | Tembladero Slough | 309.10 | Low | 150 | A | Y | Pesticides | Agriculture | ||