
Casper Aquifer Protection Plan
Protecting the City's Drinking Water
No matter the location, drinking water is one of the most important resources to a community. In the Laramie area, the Casper Aquifer supplies approximately 60% of the City's drinking water and 100% to those homeowners that fall within the Casper Aquifer recharge area. The community has noted the importance of the Casper Aquifer. Since 2002, the community has relied on the Casper Aquifer Protection Plan and accompanying ordinance to protect our water supply. View the various related resources below to learn more about the Casper Aquifer Protection Plan.

For over 140 years, the Laramie-area community has depended on the Casper Aquifer for its drinking water. Fortunately, during the last 30 years the community has gradually become aware of the importance of groundwater to the City and rural water users. Community engagement in aquifer protection began in 1993 when the City conducted a wellhead protection study under the auspices of the Safe Drinking Water Act. Since then, public understanding and concern for aquifer protection has only grown, and county and city authorities have established a series of plans and regulations. Following this interest the City and County adopted the original Casper Aquifer Protection Plan in 2001, with updates completed by the City and County in 2008 and 2011 respectively. Beginning in 2022, the City and County jointly developed and worked on a plan update, conducted by Stantec, that was eventually adopted by the City and County.
The Casper Aquifer supplies approximately 55% of the drinking water for the 31,317 residents of the City of Laramie and 100% for many of the nearby residents of Albany County. The aquifer is vulnerable to contamination from overlying land uses across the recharge area, and along the western margin in areas where the typically protective Satanka Shale has been compromised because of fracturing. Due to the highly faulted, fractured, cavernous, and folded nature of the Casper Aquifer along with natural drainages, a contaminant introduced at the ground surface might easily enter the aquifer and move rapidly away from the entry point. Once contaminated, aquifers are difficult and expensive to remediate and municipalities or responsible parties may have to pay for site studies, remediation, and property damage. Protecting our precious water supply is critical to maintaining our quality of life, and thus the City of Laramie and Albany County have jointly adopted the Casper Aquifer Protection Plan for the future of Laramie, Albany County and it’s Citizens.
Casper Aquifer Protection Plan Update 2023 - Adopted Plan
Approved by the City of Laramie and Albany County on July 5, 2023 a jointly adopted plan has been approved. You can view the full plan at the following link: Casper Aquifer Protection Plan Update 2023
Contact Us
Please contact Jay Smith at for more information at the number below.
Adopted Casper Aquifer Protection Plan and Updates
Casper Aquifer Protection Plan Update-web.pdf
Explore the 2023 Casper Aquifer Protection Plan for Laramie and Albany County, providing strategies to protect drinking water, groundwater quality, recharge areas, and the Casper Aquifer from potential contamination and future land-use impacts. Click the PDF link below to explore or print the adopted document and potential actions the City and County could take.
Air Photo Map
From 2008 Original Plan Creation
U.S. Geological Survey Map
From 2008 Original Plan Creation
Zoning Map
From 2008 Original Plan Creation
Geologist-Approved Letter Chris Moody Wyoming PG-1038
