2003-06-16_REVISION - M1999034 - Laserfiche WebLink

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COOLEY RESERVOII2 AND FULTON WILDLIFE AREA PIT AMENDMENT NO. 1 - JERONIlVIUS PROPERTY (Revised 06/03) EXHIBIT E -RECLAMATION PLAN (Continued) No acid or other toxic forming materials are known to exist in the topsoil, overburden, or aggregate material to be mined at the site. Refuse generated will be collected in the appropriate containers and hauled to a solid waste transfer station or landfill facility, and no waste or refuse will be disposed of on site. 4. Per the Noxious Weed Control Plan in EXIUBIT D -MINING PLAN, noxious weeds will be controlled, particularly Diffuse Knapweed, Scotch Thistle, and Canada Thistle; which have been observed within the permit area and on adjacent property. All areas adjacent to roadways and waterways will be assessed every spring to determine the best management practice for weed control. At a minimum, all noxious weed aeeas will be mowed as needed. In heavily invested areas, approved herbicides will be applied as needed to include, but not limited to, Tordon 22K applied at 1 pt/ac at 20 gpa or 2,4-D 4# amine at 1 gt/ac at 20 gpa. Consultation with qualified vegetation managers and/or county weed control coordinators will be on-going to assist in the management of noxious weeds. 5. A final concern was expressed by an adjacent property owner was the potential presence of DIMP (dissoprophlmethylphosphate), and the affect the operation would have on DIMP, if it was present. DIMP was a pollutant of shallow ground water, that was dischazged from the Rocky Mountain Arsenal in the creation of nerve gas in the 1940s and 1950s. In the late 1990's the Army tested all shallow wells in the area, and the Army paid for connection to public water any property owners whose shallow well was found to be polluted by DIMP that was utilized as a drinking water supply. The public water supply used with the South Adams Water and Sanitation District, and information was requested by the District on their records of DIIv1P in the shallow ground water in the area and whether any of the adjacent properties were connected to public water under the Army's program In response to this request, the District supplied the accompanying memorandum, copied as page 6 of this EXHIBIT, that indicates none of the adjacent shallow wells were connected to public water, because DIl~1P is not a pollutant in the shallow ground water in the vicinity of the Amendment No. 1 area. However, in order to address this concern to the fullest extent possible, Aggregate Industries has agreed to conform to a monitoring and potential mitigation plan for DIIvIP as outlined on page 6 of EXHIBIT D.