California
303d streams
listed by Watershed
Santa Ana Region
| Reg | Type | Water Body Name | Hydro Unit | TMDL Priority | Size | Unit | Targeted* for TMDL | Pollutant or Stressor | Probable Sources | Start Date | End Date |
| 8 | B | Anaheim Bay | 801.11 | Medium | 180 | A | N | Metals | Urban Runoff/Storm Sewers | ||
| 8 | B | Anaheim Bay | 801.11 | Medium | 180 | A | N | Pesticides | Unknown Nonpoint Source | ||
| 8 | B | Huntington Harbour | 801.11 | Medium | 150 | A | N | Metals | Urban Runoff/Storm Sewers | ||
| 8 | B | Huntington Harbour | 801.11 | Medium | 150 | A | N | Pathogens | Urban Runoff/Storm Sewers | ||
| 8 | B | Huntington Harbour | 801.11 | Medium | 150 | A | N | Pesticides | Unknown Nonpoint Source | ||
| 8 | B | "Newport Bay, Lower" | 801.11 | High | 700 | A | Y | Metals | "Urban Runoff/Storm Sewers, Contaminated Sediments" | ||
| 8 | B | "Newport Bay, Lower" | 801.11 | High | 700 | A | Y | Nutrients | Agriculture | ||
| 8 | B | "Newport Bay, Lower" | 801.11 | High | 700 | A | Y | Pathogens | Urban Runoff/Storm Sewers | ||
| 8 | B | "Newport Bay, Lower" | 801.11 | High | 700 | A | Y | Pesticides | "Agriculture, Contaminated Sediments" | ||
| 8 | B | "Newport Bay, Lower" | 801.11 | High | 700 | A | Y | Priority organics | "Unknown Nonpoint Source, Contaminated Sediments" | ||
| 8 | E | Upper Newport Bay Ecological Reserve | 801.11 | High | 752 | A | Y | Metals | Urban Runoff/Storm Sewers | ||
| 8 | E | Upper Newport Bay Ecological Reserve | 801.11 | High | 752 | A | Y | Nutrients | Agriculture | 1/96 | |
| 8 | E | Upper Newport Bay Ecological Reserve | 801.11 | High | 752 | A | Y | Pathogens | Urban Runoff/Storm Sewers | ||
| 8 | E | Upper Newport Bay Ecological Reserve | 801.11 | High | 752 | A | Y | Pesticides | "Unknown Nonpoint Source, Agriculture" | ||
| 8 | E | Upper Newport Bay Ecological Reserve | 801.11 | High | 752 | A | Y | Siltation | "Urban Runoff/Storm Sewers, Construction" | 1/96 | |
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Copper | Resource Extraction | ||
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Mercury | Resource Extraction | ||
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Metals | Resource Extraction | ||
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Noxious Aquatic Plants | "Construction, Unknown Nonpoint Source" | ||
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Nutrients | "Snow Skiing Activities, Construction " | ||
| 8 | L | Big Bear Lake | 801.71 | Medium | 2970 | A | Y | Siltation | "Construction, Unknown Nonpoint Source, Snow Skiing Activities" | ||
| 8 | L | Canyon Lake (Railroad Canyon Reservoir) | 802.12 | Low | 2017 | A | N | Cause Unknown | Source Unknown | ||
| 8 | L | Elsinore Lake | 802.31 | Medium | 2600 | A | Y | Nutrients | Unknown Nonpoint Source | ||
| 8 | L | Elsinore Lake | 802.31 | Medium | 2600 | A | Y | Organic Enrichment/Low Dissolved Oxygen | Unknown Nonpoint Source | ||
| 8 | L | Elsinore Lake | 802.31 | Medium | 2600 | A | Y | Siltation | Urban Runoff/Storm Sewers | ||
| 8 | L | Elsinore Lake | 802.31 | Medium | 2600 | A | Y | Unknown Toxicity | Unknown Nonpoint Source | ||
| 8 | L | Evans Lake | 801.27 | Low | 42 | A | N | Cause Unknown | Source Unknown | ||
| 8 | L | Prado Park Lake | 801.21 | Low | 60 | A | N | Cause Unknown | Source Unknown | ||
| 8 | R | "Chino Creek, Reach 1" | 801.21 | Medium | 2 | M | N | Nutrients | "Dairies, Agriculture" | ||
| 8 | R | "Chino Creek, Reach 1" | 801.21 | Medium | 2 | M | N | Pathogens | "Dairies, Urban Runoff/ Storm Sewers" | ||
| 8 | R | Grout Creek | 801.72 | Low | 2 | M | N | Metals | Unknown Nonpoint Source | ||
| 8 | R | Grout Creek | 801.72 | Low | 2 | M | N | Nutrients | Unknown Nonpoint Source | ||
| 8 | R | Knickerbocker Creek | 801.71 | Low | 2 | M | N | Metals | Unknown Nonpoint Source | ||
| 8 | R | Knickerbocker Creek | 801.71 | Low | 2 | M | N | Pathogens | Unknown Nonpoint Source | ||
| 8 | R | Mill Creek (Prado Area) | 801.25 | Medium | 4 | M | N | Nutrients | "Agriculture, Dairies" | ||
| 8 | R | Mill Creek (Prado Area) | 801.25 | Medium | 4 | M | N | Pathogens | Dairies | ||
| 8 | R | Mill Creek (Prado Area) | 801.25 | Medium | 4 | M | N | Suspended Solids | Dairies | ||
| 8 | R | Rathbone(Rathbun) Creek | 801.72 | Medium | 2 | M | N | Nutrients | "Unknown Nonpoint Source, Snow Skiing Activities" | ||
| 8 | R | Rathbone(Rathbun) Creek | 801.72 | Medium | 2 | M | N | Siltation | "Unknown Nonpoint Source, Snow Skiing Activities" | ||
| 8 | R | "San Diego Creek, Reach 1" | 801.11 | High | 6 | M | Y | Metals | Unknown Nonpoint Source | ||
| 8 | R | "San Diego Creek, Reach 1" | 801.11 | High | 6 | M | Y | Nutrients | "Agriculture, Unknown Nonpoint Source, Nurseries" | 7/96 | |
| 8 | R | "San Diego Creek, Reach 1" | 801.11 | High | 6 | M | Y | Pesticides | Unknown Nonpoint Source | ||
| 8 | R | "San Diego Creek, Reach 1" | 801.11 | High | 6 | M | Y | Siltation | Unknown Nonpoint Source | 1/96 | |
| 8 | R | "San Diego Creek, Reach 2" | 801.11 | High | 6 | M | Y | Metals | Urban Runoff/Storm Sewers | ||
| 8 | R | "San Diego Creek, Reach 2" | 801.11 | High | 6 | M | Y | Nutrients | "Nurseries, Agriculture, Unknown Nonpoint Source" | ||
| 8 | R | "San Diego Creek, Reach 2" | 801.11 | High | 6 | M | Y | Siltation | Construction | 1/96 | |
| 8 | R | "San Diego Creek, Reach 2" | 801.11 | High | 6 | M | Y | Unknown Toxicity | Unknown Nonpoint Source | ||
| 8 | R | "Santa Ana River, Reach 3" | 801.20 | High | 18 | M | Y | Nutrients | "Municipal Point Source, Dairies" | ||
| 8 | R | "Santa Ana River, Reach 3" | 801.20 | High | 18 | M | Y | Pathogens | Municipal Point Source | ||
| 8 | R | "Santa Ana River, Reach 3" | 801.20 | High | 18 | M | Y | Salinity/Total Dissolved Solids/Chlorides | "Municipal Point Source, Dairies" | ||
| 8 | R | "Santa Ana River, Reach 4" | 801.27 | Low | 12 | M | N | Pathogens | Municipal Point Source | ||
| 8 | R | "Santa Ana River, Reach 4" | 801.27 | Low | 12 | M | N | Salinity/Total Dissolved Solids/Chlorides | Municipal Point Source | ||
| 8 | R | "Santa Ana River, Reach 4" | 801.27 | Low | 12 | M | N | Unionized Ammonia | Municipal Point Source | ||
| 8 | R | "Santa Ana River, Reach 4" | 801.27 | Low | 12 | M | N | Unknown Toxicity | Urban Runoff/Storm Sewers | ||
| 8 | R | "Santiago Creek, Reach 4" | 801.12 | Low | 2 | M | N | Salinity/Total Dissolved Solids/Chlorides | Source Unknown | ||
| 8 | R | Silverado Creek | 801.12 | Low | 2 | M | N | "Total Dissolved Solids/ Chlorides, Coliform" | Urban Runoff/Storm Sewers | ||
| 8 | R | Summit Creek | 801.71 | Low | 2 | M | N | Cause Unknown | Source Unknown | ||