Citizen    Government    Business    Visitor
Wyoming Water Development Commission 
Harry C. LaBonde, Jr., PE, Director 
6920 Yellowtail Rd, Cheyenne, WY 82002 
Phone: 307-777-7626 

Agency Information
 Mission Statement
 Commission Agendas & Minutes
 Consultant Selection
 Items Open for Public Comment
 Operating Criteria
 Project Application Information
 Send Us Your Comments

Planning Program
 Dam and Reservoir Planning
 Groundwater Grant Projects
 Instream Flow Filings
 Current Planning Projects
 River Basin Planning
 Weather Modification Study
 Probable Maximum Precipitation
 Water Research Projects

Construction Program
 Current Construction Projects
 Small Water Projects

Agency Publications
 Project Reports
 Water/Climate Web Atlas
 Irrigation & Water System Surveys
 Legislative Reports
 Water Mgmnt & Conservation Dir
 History of Wyoming Water Law

WWDC Home Page

Water Plan Home Page

WRDS Home Page

Active Projects

 26. PROJECT:CBM Aquifer Storage and Retrieval
LEVEL:New Application
SPONSOR:City of Gillette, Incorporated Municipality
PROGRAM:New Development

This project consists of a study to test the feasibility of retrieving coal bed methane (CBM) water that has been re-injected into the Fort Union aquifer. This would involve a pilot well to evaluate the subsurface geology to confirm the ability to store produced CBM water. If data indicates that storage/retrieval is feasible, then the well would be completed as an observation well. A second production/storage well and another observation well would then be completed. Substantial monitoring is necessary during the pumping/injection process, which indicates the need for a second observation well.

Several CBM producers are currently injecting CBM water as a means of disposal of excess produced water (DEQ currently has over 240 re-injection permits issued). Determining whether storage of this water and later retrieval is cost effective is what is needed to decide if the city of Gillette will move forward to take this project beyond the pilot study requested here.

Gillette had predicted a large increase in its population due to the recent CBM boom and proposed power plants. Storage of water in aquifers that are already experiencing drawdown would help Gillette in serving the needs of their growing population.

To prevent contamination of the aquifer, prior to injection, CBM water would be disinfected with a small disinfection facility built at the site. Water samples will be monitored for conductivity, pH, chlorine and sulfates. Other assurances are needed as well to insure that wellfield treatment chemicals are not introduced into the aquifer in toxic quantities.

The WWDC recommends the project be incorporated into the New Development Program at Level II with an appropriation of $510,000.

   Citizen    Government    Business    Visitor   Privacy Policy