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ENVIRONMENT. INC. MARCH 26, 200 7 PAGE b that they are fully aware of state law in regards to water use. in the Temporary Substitute Supply Plan (TSSP) and well permit filed with the State Engineer and PS&G said that during the first five years they will buy water from Longmont to cover the industrial and evaporative uses associated with this operation. Copies of the contract with Longmont will be submitted once they are available. PS&G understands that they will have to have adequate water to offset evaporative losses and for industrial uses to stay in compliance with state law if groundwater is exposed. 20. There are actually only 10 water wells on the site not the 12 noted in the permit. A well location map Adequacy Exhibit 4, is attached for your review. Each well has an ID label that shows the owner, total depth and permitted use. Attached are copies of print outs from the Office of State Engineer showing well ownership on the site and within 600 feet of the permit boundary. The highlighted wells on the list are those on or within 600 feet of the permit area. 21. The use of the term ditch was used to very loosely describe minor water carrying facilities, such as natural drainages, and seasonal irrigation ditches. Most of the type on the site are seasonal irrigation ditches that are cut each season as needed. Those in areas not being mined will continue to be used for agricultural purposes throughout the life of the mine and so they may change yearly. There are no ditches on the Sharkey's Lake area or the terrace deposit in the Highlands Lake area, so no ditches will be disturbed in the first 40+ years while PS&G removes this gravel. There is one concrete ditch running parallel to the north/south road that supplies water to various fields along its length. This ditch will not be disturbed by the mining operation. 22. This is not really a ditch it is a natural drainage feature that water is pumped into to feed the two stock watering ponds on the north end of Bluff Lake. The irrigation return flow is shown as the undisturbed area along the toe of the slope between St. Vrain Lake and Longhorn Lake. It only drains the Sharkey property and will be removed up to the stock ponds as mining progresses across the eastern lakes. No agreement is required since Mr. Sharkey owns the land over which it passes. 23. The only aquifer impacted by mining on this site will be the groundwater aquifer associated with the South Platte River. it is contained in the gravelly strata on both sides of the river from near Waterton Canyon at the base of the foothills to the Colorado State line near Julesberg. On this site the top of the water table is approximately 6+ feet deep and the gravel varies from 45 to 60+ feet deep. So one could surmise that the saturated depth is between 38 and 53+ feet deep. Mr. Greg Roush with Leonard Rice Consulting Water Engineers, used a permeability number of 1,043 ft/day (crouna water circular No.