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	Harlan Erker Scholarship Recipients   The scholarship award recipients have just been named. Click here to read about them and their accomplishments.   Colorado Ground-Water Association's February Monthly Meeting   Date: Wednesday, February 17, 2010 Speaker topic: Geohydrology and Hydrogeochemistry of the Cripple Creek Mining District Presenter: Adrian Brown, P.E., Adrian Brown Consultants, Inc. ABSTRACT Large scale gold mining has been conducted in the Cripple Creek Mining District since the 1880s. Since early in the mining, groundwater has represented a major challenge. To address this challenge, a series of tunnels were driven into the volcanic diatreme that hosts the gold ore bodies, which lowered the regional water table and made mining feasible. The flow rate from these tunnels has in the past exceeded 20,000 gpm, and is now around 1,600 gpm. The reduction in the water table level has had hydraulic and geochemical effects, and has provided a rare opportunity to observe the quantitative behavior of a groundwater system at a regional scale.   Learn More. Download Newsletter Download our latest newsletter here. Please go to our Publications page to view back issues. Fall 2009   Acrobat Reader is required to view our newsletter. Download the FREE Acrobat Reader software by clicking on the image below.		February Monthly Meeting Learn more about upcoming events such as Monthly Meetings, workshops, etc.   Learn More.     Welcome to our website. The goal of the Colorado Groundwater web site is to keep current members informed about activities and events, and to encourage new members to join. Watch our home page for details about our monthly programs, and visit our other pages for additional information about our organization.  CGWA Information, Support, and Fellowship for Ground-Water Professionals. The Colorado Ground-Water Association is a nonprofit organization made up of members who are professionals in Colorado, other states and other countries. CGWA members are active in consulting, industry, federal and state government, education, research and other fields. Learn more.