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04021 Exhibit G -Water Information Banks and Gesso, LLC The site is located in the alluvial valley of the South Platte River but is located outside the 100-year floodplain. The Brighton Ditch flows north along the western property boundary. Adjacent properties to the north, south and west are agricultural and rural residential in nature, and are served by individual wells. The town of Wattenberg is located to the east, and many of the residents are served by a town well which is operated by the Wattenberg Improvement Associated. There are also individual wells associated with some of the residences. See exhibit C-1 for the approximate locations of these wells, as determined from State Engineer's Office records. Wetlands and Waters of the U.S. On behalf of the Applicant, Coler & Colantonio, Inc. has requested and received an Approved Jurisdiction Determination from the Corps of Engineer regarding this site (see Attachment C). The Corps has determined that the only jurisdictional areas on this site are within and immediately adjacent to the Brighton Ditch, and this project will not disturb those areas. Ground Water Monitorino and Mitigation Plan Monitoring and Reporting Plan Asphalt Paving Company has already installed 5 monitor wells on-site and is monitoring them monthly. Asphalt Paving Company had also commissioned a groundwater modeling study to evaluate the potential impacts of multiple slurry walls in this area (see Groundwater Modeling Study by Martin and Wood Water Consultants, Inc., May 3, 2005 in Attachment B). To continue to collect baseline data, and to later evaluate dewatering and slurry wall effects, the applicant commits to continue the monitoring of alluvial groundwater wells. The wells will be monitored on a monthly basis and results of the monitoring effect will be submitted to the Division along with other annual reporting requirements. With the baseline data already collected, consistently observed data trends during mining and reclamation activities may make it appropriate to reduce the monitoring frequency in one or more wells. If applicable, the applicant will request that the Division allow for the reduction in monitoring frequency. Monitoring data will be used to identify potential change in alluvial groundwater flow or elevation associated with dewatering, installation of the slurry walls, or other mining and reclamation activities. Baseline data collected from the monitoring wells has provided a range of relative water levels associated with current groundwater conditions both upgradient and downgradient of the site (see attached baseline data collected to date). Typically, alluvial groundwater elevations along the South Platte River near the site tend to fluctuate between two and four feet each year, being highest in the summer and lowest in the winter and early spring. If the groundwater elevation in a well increases or decreases by two (2) or more feet from the seasonal range (as determine from baseline monitoring data), and the measured elevation is not consistent with groundwater elevation trends at the other wells on-site, the Division will be notified within seven (7) days. After the Division has been notified, the applicant will review data from all monitoring wells and submit a report to the Division within 30 days. Changes in measured groundwater elevations will be evaluated based on natural groundwater fluctuations and Asphalt Paving Company October 11, 2005 Wattenberg West Sand and Gravel Mine Page 15