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 |
|---|---|---|
| Nebraska | Pumps | Backflow Protection |
| Nebraska | Storage tanks | Storage Tank |
| Montana | Seals | Sealing Material |
| Montana | Grout | Neat Cement |
| Montana | Grout | Cement |
| Montana | Grout | Bentonite Clay Grout |
| Montana | Casing | Steel |
| Montana | Casing | Plastic Casing Joints |
| Montana | Casing | Inner Casing |
| Montana | Construction | Artificial Gravel Packed Wells |
| Montana | Construction | Consolidated Formations |
| Montana | Construction | Flowing Wells |
| Montana | Construction | Unconsolidated Formations W/ Clay Beds |
| Montana | Construction | Unconsolidated Formations W/O Clay Beds |
| Mississippi | Testing | Testing - General |
| Mississippi | Permitting | Permitting - General |
| Mississippi | Location | Pollution Sources |
| Mississippi | Location | Septic Tank |
| Mississippi | Location | Subsurface Irrigation |
| Mississippi | Licensing | Licensing - General |
| Mississippi | Grout | Grout - General |
| Mississippi | Gravel | Gravel - General |
| Mississippi | Disinfection | Disinfection - General |
| Mississippi | Check Valves | Check Valve - General |
| Mississippi | Casing | Steel |
| Mississippi | Casing | PVC |
| Mississippi | Casing | Casing - General |
| Mississippi | Caps | Caps - General |
| Mississippi | Annular Space | Annular Space - General |
| Mississippi | Additional Requirements | Additional Requirements - General |
| Mississippi | Access Ports & Tubes | Access Ports & Tubes - General |
| Mississippi | Abandonment | Abandonment - General |
| Missouri | Location | Subsurface Disposal Field |
| Missouri | Location | Privy, Unfilled Space Below Ground, Single-Family Lagoon |
| Missouri | Location | Grave |
| Missouri | Construction | Construction - General |
| Missouri | Check Valves | Check Valve - General |
| Missouri | Annular Space | Annular Space - General |
| Minnesota | Location | Waste Stabilization Pond |
| Minnesota | Location | Sewage Holding Tank |
| Minnesota | Location | Sewage Dispersal System |
| Minnesota | Location | Anhydrous Ammonia Tank |
| Minnesota | Grout | Cement-Sand Grout |
| Minnesota | Casing | Stainless Steel |
| Minnesota | Casing | Driven |
| Minnesota | Casing | Drive Shoe |
| Minnesota | Pumps | Pumps - General |
| Minnesota | Construction | Limestone or Dolomite |
| Minnesota | Construction | Construction - Water |
| Arkansas | Construction | Construction - General |
| Minnesota | Construction | Construction - Dug Well |
| Minnesota | Construction | Construction - Drilling Fluid |
| Minnesota | Chemical Treatment | Chemical Treatment - General |
| Minnesota | Annular Space | Annular Space - General |
| Minnesota | Aquifer Interconnections | Aquifer Interconnections |
| Minnesota | Additional Requirements | Additional Requirements - General |
| Arkansas | Grout | Cement-Sand Grout |
| Minnesota | Location | Buried Cistern or Reservoir |
| Minnesota | Location | Electric Lines, Gas Pipes, Liquid Propane Tanks |
| Minnesota | Location | Interceptor |
| Minnesota | Location | Pit |
| Minnesota | Location | Wastewater Treatment |
| Minnesota | Pump Discharge Lines | Pump Discharge Lines - General |
| Michigan | Construction | Construction - Flowing Artesian Well |
| Michigan | Construction | Construction - Drilling Water |
| Michigan | Construction | Construction - Bedrock Well |
| Michigan | Casing | Coupling |
| Michigan | Annular Space | Annular Space - General |
| Michigan | Location | Land Surface Application of Septage Waste |
| Michigan | Location | Sump, Pit, or Unfilled Space |
| Michigan | Well Head Completion | Well Head Completion - General |
| Michigan | Additional Requirements | Additional Requirements - General |
| Maryland | Pump Pits | Pump Pits - General |
| Maryland | Well Pits or Vaults | Well Pits or Vaults - General |
| Maryland | Pumps | Pumps - General |
| Maryland | Grout | Bentonite - Clay |
| Maryland | Gravel Pack | Gravel Pack - General |
| Maryland | Fracturing | Fracturing - General |
| Maryland | Electrical Connection | Electrical Connection - General |
| Maryland | Upper Terminal | Upper Terminal - General |
| Maryland | Grout | Thermally Enhanced Cementatious Grout |
| Maryland | Grout | Unconfined Aquifer - Hydro Area 1 & 2 |
| Maryland | Grout | Grout Height |
| Maryland | Grout | Confined Aquifer - Hydro Area 2 |
| Maryland | Disinfection | Disinfection - Nonresponsive Wells |
| Maryland | Construction | Construction - Water |
| Maryland | Annular Space | Annular Space - General |
| Massachusetts | Construction | Dug Well - General |
| Massachusetts | Construction | Dug Well - Buried Slab |
| Massachusetts | Construction | Dug Well - Standard |
| Massachusetts | Construction | Non-Flowing Artesian Well |
| Massachusetts | Construction | Hand Driven Sand Point Well |
| Massachusetts | Drilling Fluid | Drilling Fluid - General |
| Massachusetts | Grout | Neat Cement |
| Massachusetts | Grout | Sand Cement |
| Massachusetts | Location | Gas and Electric Utility Lines |
| Massachusetts | Location | Surface Water, Wetlands |
| Massachusetts | Pumps | Pumps - Installation |
| Massachusetts | Casing | Concrete |
| Massachusetts | Annular Space | Annular Space - Non-Flowing Artesian Well |
