Well is downhill from pollution sources or in a pit or depression. Surface water runoff reaches well. Some but not all distances from potential pollution sources meet state minimum requirements. Distances from most or all potential pollution sources do not meet state minimum requirements. Casing is at the surface or up to 12in above the surface.
Casing is below the surface or in a pit or basement.
Tests meet standards for bacteria, nitrates and other contaminants. Some tests do not meet standards. Water is not tested. Water is discolored after a rainstorm or during spring melt. There are noticeable changes in color, odor and taste.