Water source
Well placement rules on a plot
United States · Auxiliary · depends on foundation
A drinking-water well needs a sanitary protection radius set by state code: keep it at least 50 ft from a septic tank, ~100 ft from a drainfield, and away from sewers, privies and manure.
Placement rules
A drinking-water source should be planned before septic and compost locations are fixed.
Sanitary zone
Sanitary protection distances to wells, drinking water and dwellings.
Well / borehole sanitary zone
Well to septic tank
≥50 ft (MN state health code)
Minnesota Dept. of Health — Isolation Distances from a Water-Supply Well
Well to drainfield
~100 ft typical (Title 5); 50 ft minimum in MN
Water Well Clearance Distances (Mass Title 5 & EPA reference table)
Well to buried sewer
20 ft (approved pipe) to 50 ft (MN)
Minnesota Dept. of Health — Isolation Distances from a Water-Supply Well
Important limitation
The catalog is a planning aid, not a legal opinion. Before construction, check the land plot category, local land-use and development rules, easements, utility protection zones and neighbour buildings.
Sources
The editor will use the same source-backed passport for short in-canvas hints.
Other objects
Compare nearby planning objects before fixing the site layout.
