Water Protection Activities in Washtenaw County

A6: Lima Township
Obtaining adequate water supplies in sections 4, 5, 6, 8, 9, and
10 can be difficult in Lima Township. These sections are "well
first" and it is required that a well with at least 7 gallons per
minute capacity be obtained prior to building a home.
Some residents have found tannic acids in their water supplies.
Tannins enter groundwater as the water travels through soil
high in organic matter. The presence of tannic acids indicates
that the large wetland areas in the Township act as aquifer
recharge areas. The surface soils are a mix of heavy clay and
sandy soils. Approximately 20% of the land surface area is
covered by sandy soil and 28% is hydrous or muck soils high
in organic matter. Water covers 2.94% of the Township's
surface area.
Drinking Water: Well Information
Between 1968 and 1992, 500 wells were drilled in Lima
Township. Between the years 2000 to 2005 there were 161 new
wells drilled and 57 wells were replaced. Depths range from
30-213 feet with an average of 77 feet. Most wells draw water
from aquifers ranging from 50-100 feet deep.
Drinking Water: Consumer Confidence Report Summary
Thornton Farms: Water is drawn from two groundwater
wells. Contact: (734) 464-7979
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Lima Twp. – Four Mile Lake
Surface Water Features: Four Mile Lake, Nordman Lake,
Sutton Lake, Mill Creek.
Local Indicator Data
Lima Township has one TMDL site for mercury at Four Mile
Lake. It has three Part 201 Sites. It has four NPDES permits for
storm water and one NPDES pollutant discharge permit. Lima
Township has 7 UST sites and 2 LUST but no AST sites.