Water Systems CouncilState Well Codes
The State Well Codes database stores state standards for the construction of private water wells.
Included in the database is state-specific information on various codes related to well construction and siting. To find information on your state or other states, use the searchable database below.
Please note that this database is intended as a guide and occasionally standards change. WSC updates the database periodically, but we encourage you to obtain a full list of state well codes from your state environmental agency or contact the wellcare® Hotline for assistance.
If you have questions about the database, corrections or updates, please contact Charlene Bean.
Please click on the State Name in the list below for well code information. If you would like to alphabetize the table, click on the column name in blue.
| State | Category | Subcategory |
|---|---|---|
| Wisconsin | Location | Grease Interceptor |
| Wisconsin | Location | Fuel Oil Tank |
| Wisconsin | Location | Filter Strip |
| Wisconsin | Location | Fertilizer or Pesticide |
| Wisconsin | Location | Doghouse Or Kennel Housing 3 Or Fewer Adults |
| Wisconsin | Location | Ditch |
| Wisconsin | Location | Coal Storage ( > 500 Tons) |
| Wisconsin | Location | Cistern |
| Wisconsin | Location | Cemetery Grave Sites |
| Wisconsin | Location | Building Overhang |
| Wisconsin | Location | Barn Gutter |
| Wisconsin | Location | Animal Barn/Shelter/Yard |
| Wisconsin | Location | Animal Barn Pen |
| Wisconsin | Location | Air Shaft |
| Wisconsin | Licensing | Licensing - General |
| Wisconsin | Grout | Sodium Bentonite Water Slurry |
| Wisconsin | Grout | Placement |
| Wisconsin | Grout | Neat Cement |
| Wisconsin | Grout | Concrete Grout |
| Wisconsin | Grout | Clay Slurry |
| Wisconsin | Grout | Cement Grout Placement |
| Wisconsin | Gravel/Sand-Packed Wells | Gravel/Sand-Packed Wells - General |
| Wisconsin | Electrical Connection | Electrical Connection - General |
| Wisconsin | Disinfection | Disinfection - General |
| Wisconsin | Development | Development - General |
| Wisconsin | Cross Connection | Cross Connection - General |
| Wisconsin | Construction | Unconsolidated Formations |
| Wisconsin | Construction | Drilled Bedrock Construction-Low Capacity Wells |
| Wisconsin | Casing | Thermoplastic |
| Wisconsin | Casing | Temporary |
| Wisconsin | Casing | Steel |
| Wisconsin | Casing | Liner |
| Wisconsin | Casing | Casing - General |
| Wisconsin | Caps | Caps - General |
| Wisconsin | Abandonment | Permanent |
| Wisconsin | Abandonment | Bedrock |
| Wisconsin | Abandonment | Abandonment - General |
| Washington | Well Pits or Vaults | Well Pits Or Vaults - General |
| Washington | Well Head Completion | Well Head Completion - General |
| Washington | Testing | Testing - General |
| Washington | Seals | Surface |
| Washington | Screens | Screens - General |
| Washington | Pumps | Pumps - General |
| Washington | Plumbness & Alignment | Plumbness & Alignment - General |
| Washington | Pitless Units | Pitless Units - General |
| Washington | Permitting | Permitting - General |
| Washington | Packers | Packers - General |
| Washington | Meters | Meters - General |
| Washington | Location | Sewers |
| Washington | Location | Septic Tank |
| Washington | Location | Septic Pump Chamber Or Distribution Box |
| Washington | Location | Septic Holding Tank Or Containment Vessel |
| Washington | Location | Potential Contaminants |
| Washington | Location | Nonperforated Distribution Lines |
| Washington | Location | Location - General |
| Washington | Location | Drainfield Edge, Reserve Drainfield |
| Washington | Location | Building |
| Washington | Location | Boundary Of Solid Waste Landfill |
| Washington | Licensing | Licensing - General |
| Washington | Identification | Identification - General |
| Washington | Grout | Unhydrated Bentonite |
| Washington | Grout | Unconsolidated Formations W/ Clay Beds |
| Washington | Grout | Placement |
| Washington | Grout | Neat Cement |
| Washington | Grout | Consolidated Formations |
| Washington | Grout | Concrete |
| Washington | Grout | Bentonite |
| Washington | Gravel/Sand-Packed Wells | Gravel/Sand-Packed Wells - General |
| Washington | Explosives | Explosives - General |
| Washington | Disinfection | Disinfection - General |
| Washington | Development | Development - General |
| Washington | Casing | Temporary |
| Washington | Casing | Steel |
| Washington | Casing | Plastic |
| Washington | Casing | Liner Pipe |
| Washington | Caps | Caps - General |
| Washington | Additional Requirements | Concrete Curbing |
| Washington | Additional Requirements | Additional Requirements - General |
| Washington | Access Ports & Tubes | Access Ports & Tubes - General |
| Washington | Abandonment | Abandonment - General |
| Vermont | Well Pits or Vaults | Well Pits or Vaults - General |
| Vermont | Well Head Completion | Well Head Completion - General |
| Vermont | Vents | Vents - General |
| Vermont | Seals | Seals - General |
| Vermont | Pumps | Pumps - General |
| Vermont | Plumbness & Alignment | Plumbness & Alignment - General |
| Vermont | Pitless Units | Pitless Units - General |
| Vermont | Permitting | Permitting - General |
| Vermont | Packers | Packers - General |
| Vermont | Location | Up Slope Sewage System Disposal Facilities |
| Vermont | Location | Surface Water |
| Vermont | Location | Roadway Shoulder, Parking Lot Edge |
| Vermont | Location | Property Line |
| Vermont | Location | Location - General |
| Vermont | Location | Limit of Herbicide Application |
| Vermont | Location | Hazard or Solid Waste Disposal Sites |
| Vermont | Location | Edge Of Driveway Serving < 3 Residences |
| Vermont | Location | Down Slope Sewage System Disposal Facilities |
| Vermont | Location | Concentrated Livestock Holding Areas |
| Vermont | Location | Buildings |
