| #D001 | | California Integrated Water Quality System (CIWQS) | The California Integrated Water Quality System (CIWQS) is a computer system used by the State and Regional Water Quality Control Boards to track information about places of environmental interest, manage permits and other orders, track inspections, and manage violations and enforcement activities. | high |
| #D002 | | CalWATRS | CalWATRS is a computer database developed by the State Water Resources Control Board to track information on water rights in California. | high |
| #D003 | | NPDES | National Pollutant Discharge Elimination System | high |
| #D004 | | SSO | Sanitary Sewer Overflow | high |
| #D005 | | SMARTS | Stormwater Multi-Application, Reporting, and Tracking System | high |
| #D006 | | California Water Boards | The California Water Boards include the State Water Resources Control Board and nine Regional Boards | high |
| #D007 | | State Water Board | one of six environmental entities operating under the authority of the California Environmental Protection Agency | high |
| #D008 | | WERs | Water Effect Ratios | high |
| #D009 | | TMDLs | Total Maximum Daily Loads | high |
| #D010 | | Basin Plan | Water Quality Control Plan for the San Diego Basin | high |
| #D011 | | State Water Board | State Water Resources Control Board | high |
| #D012 | | OAL | Office of Administrative Law | high |
| #D013 | | USEPA | US Environmental Protection Agency | high |
| #D014 | | CEQA | California Environmental Quality Act | high |
| #D015 | | Basin Plan | Water Quality Control Plan for the San Diego Basin | high |
| #D016 | | State Water Board | State Water Resources Control Board | high |
| #D017 | | OAL | Office of Administrative Law | high |
| #D018 | | USEPA | US Environmental Protection Agency | high |
| #D019 | | CEQA | California Environmental Quality Act | high |
| #D020 | | California Toxics Rule | USEPA's water quality criteria for toxic pollutants in inland surface waters, enclosed bays, and estuaries | high |
| #D021 | | Agricultural Operations | agricultural and nursery operations | high |
| #D022 | | General Agricultural Orders | Order No. R9-2016-0004 (Third-Party General Order) and Order No. R9-2016-0005 (Individual General Order) | high |
| #D023 | | Commercial Agricultural Operations | any agricultural business or trade activity, including farms, nurseries, and orchards, that produce crops or ornamental plants with the intent to make a profit. | high |
| #D024 | | WQPP | Water Quality Protection Plans | high |
| #D025 | | BMPs | best management practices | high |
| #D026 | | CalEPA | California Environmental Protection Agency | high |
| #D027 | | SWRCB | State Water Resources Control Board | high |