||This report provides the most current
information and data found, as of May 2007, unless otherwise
OF DRINKING WATER
- Wisconsin has nearly 11,500 public
water systems which meet the daily water needs of about 4 million people. Public
water systems that are owned by a community are called municipal water systems.
Door County has 3 municipal water systems.
- 2 of 3 municipal
water systems in Door County have a wellhead
protection plan: Sister Bay and Sturgeon Bay.
- 1 of 3 municipal
water systems in Door County has a wellhead
protection ordinance: Sister Bay.
- Door County has adopted an animal
waste management ordinance.
- Over $8 million
has been spent on petroleum cleanup in Door County from leaking underground
storage tanks, which equates to $297 per county
- No municipal water systems in Door
County have spent money to reduce nitrate levels.
- From 1979 to 2005, total water use in Door County has fluctuated from
3.3 million gallons per day to about 6.9 million gallons per day.*
- The fluctuation in total water use over this period is due primarily to all
usage categories, with aquaculture contributing to the largest increase.
- The proportion of county water use supplied by groundwater decreased from
over 99% to about 72% during the period 1979 to 2005.*
- Water use in Wisconsin is generally estimated for the following
- Public use and losses
- Thermoelectric or mining
* Thermoelectric and mining data are not
considered in water-use tables or figures on this web site. Thermoelectric-power
water use is the amount of water used in the process of generating thermoelectric
power. The predominant use of water is as non-contact cooling water to condense
the steam created to turn the turbines and generate electricity.
OF GROUNDWATER TO CONTAMINANTS
- Wisconsin has abundant quantities
of high-quality groundwater, but once groundwater is contaminated, it's very
expensive and often not technically possible to clean.
- An evaluation of the
susceptibility of groundwater to contamination in Door County can be seen
in the FULL REPORT or accessed through the map
- 97% of 682 private
well samples collected in Door County from 1990-2006 met the health-based drinking
water limit for nitrate-nitrogen.
- A 2002 study estimated that 33% of
private drinking water wells in the region of Wisconsin that includes Door
County contained a detectable level of an herbicide or herbicide metabolite.
Pesticides occur in groundwater more commonly in agricultural regions, but can
occur anywhere pesticides are stored or applied.
- There are no atrazine prohibition
areas in Door County.
- 100% of 72 private well samples
collected in Door County met the health standard for arsenic.
SOURCES OF CONTAMINANTS
are 62 open-status sites in Door County with contaminated groundwater and/or
soil. These sites are composed of 17 Leaking
Underground Storage Tank (LUST) sites, 43 Environmental Repair (ERP) sites, 1
spill site and 1 Voluntary Party Liability Exemption (VPLE) site
- There is 1 concentrated
animal feeding operation in Door County.
- There is 1 licensed
landfill in Door County.
- There are no Superfund sites in Door
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