State Well Codes

State 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 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.

Displaying 101 - 200 of 2328 1 2 3 4 24
State Category Subcategory
Maryland Additional Requirements Additional Requirements - General
Missouri Additional Requirements Additional Requirements - General
Wisconsin Additional Requirements Additional Requirements - General
West Virginia Construction Additional Requirements - General
Ohio Additional Requirements Additional Requirements - General
North Dakota Additional Requirements Additional Requirements - General
North Carolina Additional Requirements Additional Requirements - General
New York Additional Requirements Additional Requirements - General
Nevada Additional Requirements Additional Requirements - General
Mississippi Additional Requirements Additional Requirements - General
Minnesota Additional Requirements Additional Requirements - General
Michigan Additional Requirements Additional Requirements - General
Massachusetts Additional Requirements Additional Requirements - General
Maine Additional Requirements Additional Requirements - General
Louisiana Additional Requirements Additional Requirements - General
Indiana Additional Requirements Additional Requirements - General
Oklahoma Location Aerobic Sprinkler
Minnesota Location Agricultural Chemical Storage Area
Wisconsin Location Agricultural Crop Field
Ohio Location Agricultural Facility
Delaware Location Agricultural Lands Preservation District
Ohio Air Gap Air Gap - General
Wisconsin Location Air Shaft
Texas Location Alternative Siting Methods
Minnesota Location Anhydrous Ammonia Tank
Wisconsin Location Animal Barn Pen
Wisconsin Location Animal Barn/Shelter/Yard
North Carolina Location Animal Barns
Minnesota Location Animal Feedlot, Barnyard, Feeding Or Watering Area
South Carolina Location Animal Feedlots, Barns, Stables
North Carolina Location Animal Feedlots, Manure Piles
Nebraska Location Animal Holding Pen, Waste Containment Structure
Minnesota Location Animal or Poultry Building
Tennessee Location Animal Pens Or Feed Lots
Oregon Location Animal Waste Disposal Area
Texas Annular Seal Annular Seal - General
Colorado Annular Space Annular Space - General
Connecticut Annular Space Annular Space - General
Georgia Annular Space Annular Space - General
Hawaii Annular Space Annular Space - General
Wyoming Annular Space Annular Space - General
Vermont Annular Space Annular Space - General
Rhode Island Annular Space Annular Space - General
Oregon Annular Space Annular Space - General
Oklahoma Annular Space Annular Space - General
Ohio Annular Space Annular Space - General
New Mexico Annular Space Annular Space - General
North Carolina Annular Space Annular Space - General
New York Annular Space Annular Space - General
New Jersey Annular Space Annular Space - General
Nevada Annular Space Annular Space - General
Nebraska Annular Space Annular Space - General
Mississippi Annular Space Annular Space - General
Missouri Annular Space Annular Space - General
Minnesota Annular Space Annular Space - General
Michigan Annular Space Annular Space - General
Maryland Annular Space Annular Space - General
Maine Annular Space Annular Space - General
Louisiana Annular Space Annular Space - General
Indiana Annular Space Annular Space - General
Kentucky Annular Space Annular Space - General
Iowa Annular Space Annular Space - General
Idaho Annular Space Annular Space - General
Delaware Annular Space Annular Space - General
Massachusetts Annular Space Annular Space - Non-Flowing Artesian Well
Illinois Annular Space Annular Space - Unconsolidated
California Location Any Sewer Line
North Dakota Grout Application
Iowa Pumps Appurtenances
Minnesota Aquifer Interconnections Aquifer Interconnections
Hawaii Disinfection Aquifer Section
Rhode Island Construction Artesian Well
Oregon Seals Artesian Well
Oregon Abandonment Artesian Well
New Mexico Construction Artesian Well
North Carolina Construction Artesian Well
Nevada Construction Artesian Well
Arizona Construction Artesian Well
Washington Seals Artesian Wells
Utah Seals Artesian Wells
Illinois Construction Artesian Wells
Florida Artesian Wells Artesian Wells - General
Montana Grout Artificial Gravel Packed Wells
Montana Construction Artificial Gravel Packed Wells
New Hampshire Location Automotive Salvage Yard
California Pumps Backflow Prevention
Colorado Pumps Backflow Prevention
Nebraska Pumps Backflow Protection
Wisconsin Location Barn Gutter
New York Location Barnyard
Alabama Location Barnyard
California Location Barnyard
Georgia Location Barnyard
Illinois Location Barnyard
Kentucky Location Barnyard
Michigan Location Barnyard
West Virginia Location Barnyard/Feeding & Watering Areas
North Dakota Location Barnyards, Feedlots
Wisconsin Location Basement or Crawl Space
North Dakota Location Basements Or Pits
Displaying 101 - 200 of 2328 1 2 3 4 24