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 the websites provided within the States Contact List to the right of this page.
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 | Well Pits or Vaults | Well Pits Or Vaults - General |
North Dakota | Well Pits or Vaults | Well Pits or Vaults - General |
California | Well Pits or Vaults | Well Pits Or Vaults - General |
Colorado | Well Pits or Vaults | Well Pits Or Vaults - General |
Connecticut | Well Pits or Vaults | Well Pits Or Vaults - General |
Delaware | Well Pits or Vaults | Well Pits Or Vaults - General |
Florida | Well Pits or Vaults | Well Pits Or Vaults - General |
Georgia | Well Pits or Vaults | Well Pits Or Vaults - General |
Hawaii | Well Pits or Vaults | Well Pits Or Vaults - General |
Iowa | Well Pits or Vaults | Well Pits Or Vaults - General |
Idaho | Well Pits or Vaults | Well Pits Or Vaults - General |
Kansas | Well Pits or Vaults | Well Pits Or Vaults - General |
Kentucky | Well Pits or Vaults | Well Pits Or Vaults - General |
Lousiana | Well Pits or Vaults | Well Pits Or Vaults - General |
Maine | Well Pits or Vaults | Well Pits Or Vaults - General |
New Mexico | Well Pits or Vaults | Well Pits or Vaults - General |
Maryland | Well Pits or Vaults | Well Pits or Vaults - General |
Illinois | Well Pits or Vaults | Well Pits or Vaults - General |
Kansas | Abandonment | Wells From Confined & Unconfined Aquifers |
Rhode Island | Construction | Wells In Unconsolidated Materials |
Ohio | Location | Wells or Boreholes/Unknown or Unregulated Construction |
Texas | Annular Seal | Wells Producing Injurious Waters |
Texas | Casing | Wells Producing Injurious Waters |
Texas | Well Head Completion | Wells Producing Injurious Waters |
New Jersey | Location | Wood Frame Building |
Illinois | Location | Yard Hydrant |
Indiana | Yield | Yield - General |
Connecticut | Yield | Yield - General |