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~~ (Page 2) MINE ID / OR PROSPECTING ID f M-87-049 INSPECTION DATE 9 29 94 INSPECTOR'S INITIALS GSC OBSERVATIONS This inspection was conducted in response to a telephone complaint received from Me. Maria Ressler on September 23, 1994. Gerritt Lansing, the operator's representative, was present and Ray Forehand was present with Ms. Kessler. Me. Reveler has three water wells located about 2,500 feet east of the Bromley lakes operation and complained that the water levels have been dropping since the mid 1980'x. She believed this may be caused by the gravel operation. According to Me. Ressler, one domestic well in her house and one irrigation well south of her house were hand dug in 1900 approximately, and are 36 and 39 feet deep respectively. She said the depth to the water level was about 27 feet below ground level (bgl) in 1966 in each well. She-backfilled the bottom 26 feet of the domestic house well with gravel from her fields in 1966. The house well has gone dry and waa not accessible for inspection. The irrigation well was inspected. It ie located in a well house near Brighton Road about 100 feet south of Hs. Keesler'e house. The upper 12 feet of the well appear to be lined with cement and a centrifugal pump site on a wooden platform about 12 feet below ground level. The water level was measured with Fisher M-scope water level indicator. Due to obstructions in the well the water level was approximated between 25 to 30 feet bgl. The irrigation well was drilled in March 1994 to a total depth of 390 feet bgl. Initial production was 30 gpm and the water level was 58 feet bgl. It took 2.5 to 3 days to case the well. The lower Arapahoe aquifer was screened and a submersible pump wax installed 5 weeks later. Me. Ressler and Ray Forehand said that at that time the water level dropped to. 167 feet bgl and the well production dropped. In August, the pump was lowered to 366 feet bgl and the well was developed at that time. The well currently produces about 1 to 2 gallons per minute at the moat. A permit application was filed with the State Engineer for this well. Troy Trevena, who operates the Wagon Wheel Skating Rink located 200 feet south of the gravel operation, was also present at the Keaeler place. He said that the water level in hie well has remained constant but that the amount of Band and silt hex increased recently. The Bromley lakes operation waa inspected with Mr. Lansing. Phaeee 1 and 2 have been disturbed to date. Phase one is the processing area and Phase 2 consists of two pits totaling about 15 acres on the north aide of the permit. The pits are approximately 27 feet deep and are situated on the eastern and western aides of McCann Ditch. The eastern pit was excavated with a drag line and ie now filled with water at a level about 2-3 feet bgl. There ie adequate topsoil stockpiled on the western aide of Phase 1. A concrete batch plant waa recently installed east of and outside the permit boundaries. The mining plan includes a batch plant inside the process area. See PV-1. The western pit ie pumped dry and mined with dozers and loaders. A pump ie located in the northeastern corner of this pit and the water is pumped across McCann Ditch into the eastern lake. The adequacy response from Tuttle Applegate dated Hay 20, 1987, states the pits will be mined without dewatering. Since dewatering ie not part of the current mining plan, the operator must desist from this activity. If you wish to submit an amendment to the permit to include dewatering, a plan will be required to evaluate the impact this will have on ground water users adjacent to the operation and that identifies the cone of depression and radius of influence created by the dewatering activities. The operator will also need to verify to the Division that this activity will be in compliance with the State Engineer. See PB-2.