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• (Page 2) • MINE ID / OR PROSPECTING ID ~ M-78-014 INSPECTION DATE 11 9 94 INSPECTOR'S INITIALS GSC OBSERVATIONS This was a monitoring inspection conducted with Mr. Michael Leidich, the operator's representative. The permitted acreage is 130.d5 and the bond is currently 550,000.00. The operation consists of 3 stages. The operation was not active during the time of this inspection. Clay is mined from various beds throughout the eastward dipping Laramie Formation. Mr. Leidich explained that the clay is mined and stockpiled periodically and the stockpiled product ie removed ae needed. Stage 1 ie currently being mined for clay and Stages 2 and 3 are being reserved for future activities. Extensive portions of Stages 1 and 2 consist of pre-law disturbance. Various clay layers in the Laramie Formation are periodically mined from Stage 1 and clay ie stockpiled under protective plastic within Phase 1. A topsoil and two clay atockpilee are situated in the southern portion of Stage 1. Another overburden stockpile and one topsoil stockpile are located further west. All atockpilee are stabilized. The perimeters of this permit are well fenced and posted with warning signs. A clearly visible sign ie posted at the entrance, however, some of the required information ie lacking. This sign needs to show the name of the operator, a reclamation permit statement and the permit number pursuant to Rule 3.1.12 of the Rules and Regulations ae amended in 4/94. See PB-1. In 1987, the U.S. congress amended the Clean Water Act to expressly include storm water discharges from industrial sites ae requiring Clean Water Act controls. In 1990, EPA issued regulations that require specific industrial activities to obtain permits in order to discharge storm water from their facilities. Active and inactive mining operations where storm water comes into contact with overburden, raw material, intermediate products, byproducts, finished products or waste products located at the mining Bite are specifically included. The deadline to apply for a storm water permit was October 1, 1992. If a storm water permit for this mine has not yet been obtained, the operator must make application for such a permit as soon as possible. If any storm water control structures are required to be constructed at the mine as a result of the storm water permitting process, a revision must then be submitted to this Division to include the operational and reclamation aspects of such structures in the Reclamation Permit.