REV101843 - Laserfiche WebLink

Home Browse Search

The four inch gray water inlet pipe will extend partially down • the pond embankment and will discharge .onto a plastic sheet to prevent erosion of the embankment. There will be no other inflow into the pond from surface sources. The only discharge from the impoundment will be to the land application area, Land Application Area The area selected for the land application of gray water discharge is a permanent pasture which has been occassionally cut for hay. It is composed of pasture species and alfalfa. With the advent of the mine operation, the area will be fenced and excluded from grazing or access by the general public. It will not be cut for hay. Gray water will be spread evenly over the surface by discharging the water into a contour furro W or a perforated pipe located on the uphill side of the land application area. Gray water will not be allowed to become channelized and flow from the area,. If the land application area becomes saturated, the discharge of gray water will be discontinued until it has percolated into the subsoil material. After the construction phase is ended and the permanent bathhouse has replaced the temporary shower facility, the site will be • reclaimed. Reclamation will consist of removing the shower trailer and the 4 inch pipe. The impoundment will be drained and regraded. Topsoil will be respread and seeded according to procedures approved in the MRP. All incidentially disturbed areas such as the drain pipe location, will be reseeded. New Castle Energy Corporation requests approval from the Division to establish and operate a temporary shower facility described above. Of particular concern is the discharge of gray water. The plan has been reviewed verbally with Don Holmer of the Colorado Department of Health who deemed it acceptable. He specified that the CMLRD must approve the activities; but, the only stipulation required for discharge of the gray water is that it meet the water quality standards set forth in the NPDES permit. He also commented that the gray water could be treated as necessary to achieve the water quality standards and discharged in a pasture land application. It is felt that the proposed plan meets these concerns and follows the intent of the laws governing this matter.