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.

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State Category Subcategory
Wisconsin Vents Vents - General
Wisconsin Seals Seals - General
Wisconsin Screens Screens - General
Wisconsin Pumps Sampling Faucets
Wisconsin Pumps Pumps - General
Wisconsin Plumbness & Alignment Plumbness & Alignment - General
Wisconsin Pitless Units Pitless Units - General
Wisconsin Permitting Permitting - General
Wisconsin Location Wastewater Treatment Plant Structure
Wisconsin Location Wastewater Treatment Plant Effluent Pipe
Wisconsin Location Tank - Surface (> 1500 Gal)
Wisconsin Location Swimming Pool
Wisconsin Location Stormwater Infiltration Basin of System
Wisconsin Location Solid Waste Transfer Facility
Wisconsin Location Solid Waste Processing Facility
Wisconsin Location Soil Absorption Unit > 8000 Gal/Day
Wisconsin Location Soil Absorption Unit < 12,000 gal/day
Wisconsin Location Silo
Wisconsin Location Silage Storage-Surface, Uncovered
Wisconsin Location Silage Storage, Earthen Trench Or Pit
Wisconsin Location Silage Storage Structure-Inground or Surface
Wisconsin Location Shoreline
Wisconsin Location Sewer-Sanitary Collector
Wisconsin Location Sewer-Sanitary Collector
Wisconsin Location Sewer-Manure/Buried/Pressurized
Wisconsin Location Sewer-Influent
Wisconsin Location Salvage Yard
Wisconsin Location Salt Or Deicing Material Storage
Wisconsin Location River Or Stream Edge
Wisconsin Location Reservoir-Non-Complying
Wisconsin Location Privy
Wisconsin Location Pond, Stormwater Detention
Wisconsin Location Plastic Silage Storage & Transfer Tube
Wisconsin Location Pits-Noncomplying
Wisconsin Location Petroleum-Contaminated Soil Landspreading Facility Boundary
Wisconsin Location Pet Waste Disposal Unit
Wisconsin Location Nonpotable Well
Wisconsin Location Manure Storage Structure -Water-Tight
Wisconsin Location Manure Storage Structure - Earthen or Excavated
Wisconsin Location Manure Stack-Temporary
Wisconsin Location Manure Stack
Wisconsin Location Manure Hopper Or Reception Tank
Wisconsin Location Location - General
Wisconsin Location Liquid Waste Disposal System
Wisconsin Location Lift Station
Wisconsin Location Landfills
Wisconsin Location Lake Shoreline
Wisconsin Location Kennel with < 5 Adults
Wisconsin Location Holding Tank-Sewage
Wisconsin Location Hazardous Waste Treatment- DNR Regulated
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