Protecting Wisconsin's Groundwater Through Comprehensive Planning
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  Marquette County
  This report provides the most current information and data found, as of May 2007, unless otherwise noted.
  Marquette County groundwater findings reports Marquette County full report Switch to Marquette County full report


  • 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. Marquette County has 1 municipal water system.  Table showing water systems in Marquette County

GROUNDWATER PROTECTION POLICIES   Table showing water systems in Marquette County

  • 1 of 1 municipal water system in Marquette County has a wellhead protection plan: Montello.
  • 0 of 1 municipal water system in Marquette County have a wellhead protection ordinance.
  • Marquette County has adopted an animal waste management ordinance.


  • Over $5 million have been spent on petroleum cleanup in Marquette County from leaking underground storage tanks, which equates to $353 per county resident.
  • No municipal water systems in Marquette County have spent money to reduce nitrate levels.

GROUNDWATER USE   Water use figure

  • From 1979 to 2005, total water use in Marquette County has increased from about 1.8 million gallons per day to 10.4 million gallons per day.
  • Total water use increased substantially in 1995 due to increased commercial use and total water use increased substantially in 2000 due to increased agriculture and irrigation use.
  • The proportion of county water use supplied by groundwater has decreased from over 99% to about 91% during the period 1979 to 2000 and increased to 96% in 2005.
  • Water use in Wisconsin is generally estimated for the following categories:
    • Domestic
    • Livestock
    • Aquaculture
    • Irrigation
    • Industrial
    • Commercial
    • 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.



  • 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 Marquette County can be seen in the FULL REPORT or accessed through the map link above.


  • 91% of 386 private well samples collected in Marquette County from 1990-2006 met the health-based drinking water limit for nitrate-nitrogen.   Nitrate map
  • A 2002 study estimated that 36% of private drinking water wells in the region of Wisconsin that includes Marquette 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.   Statewide pesticide map
  • 7,807 acres of land in Marquette County are in atrazine prohibition areas. Map showing atrazine prohibition areas in Marquette County
  • 74% of 126 private well samples collected in Marquette County met the health standard for arsenic.


  • There are XX open-status sites in Marquette County that have contaminated groundwater and/or soil. These sites include 7 Leaking Underground Storage Tank (LUST) sites, 6 Environmental Repair (ERP) sites and 4 spill sites.   BRRTS map
  • There are 2 concentrated animal feeding operations in Marquette County.
  • There are 2 licensed landfills in Marquette County.
  • There are no Superfund sites in Marquette County.

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Marquette County full report Marquette County full report

For more information about this web site, its contributors, and the data contained herein, click here.

For assistance in comprehensive planning, please contact Lynn Markham, UW-Stevens Point.
For assistance on groundwater, please contact Charles Dunning, USGS.
Page contact: Webmaster, USGS
Page last updated: January 14, 2008