PERMFILE72345

• Permit No: M2002004
• IBM Index Class Name: Permit File
• Doc Date: 1/18/2002
• Doc Name: Permit Application
• From: GCC Rio Grande Inc
• To: DMG
• Media Type: D
• Archive: No

Exhibit G
• WATER QUALITY
Storm Water Discharge Permit (Construction): On June 2, 1997, Rio Grande applied for
a Storm Water Discharge Permit from the Colorado Department of Public Health and
Environment for construction of the facility. This permit- was issued and became
effective on March 10, 2000- and will expire on September 30, 2002. Rio Grande -has
maintained this approval through payment of an annual fee to the Colorado Department
of Public Health and Environment. This permit allows RGPC to discharge storm water
runoff from two outfalls that are associated with the property on which RGPC will be
constructing a portland cement manufacturing facility. Part LB. of the permit requires
monitoring of storm water discharges from these two outfalls for several parameters
including pH, Total Suspended Solids. Oil and Grease, and Discharge Flow rate. Part
LB. also requires that the analytical results of this monitoring be submitted to the
Colorado Department of Public Health and Environment within 30 days of the end of
each calendar quarter.
As construction of the facility has not yet started, there have been no dischazges
associated with industrial activity. Accordingly, the discharge monitoring reports
indicated above reflect a "No Dischazge" status. Rio Grande has also completed plans for
managing on-site storm water discharges.
The storm water permit for construction activities is certification COR-032435. The
• certification was effective 5/5/98 and expires 6/30/02. The combined permit for process
water/storm water discharges is certification COG-500377 03/10/2000 and expires
09/30/2002. The permit is attached as Appendix A and allows construction of the
. facility. It will be replaced with an individual permit (being prepared) that will authorize
industrial waste and storm water dischazges from the facility during operations.
WATER QUANTITY
The facility requires approximately 379 acre-feet per yeaz; two-thirds for the plant and
offices and one-third for dust control in the surface mine. Rio Grande, through the State
Land Boazd, has applied to the State Engineer's Office for three well permits to withdraw
nontributary groundwater. The three well permit applications propose to withdraw
groundwater totaling 363.3 acre feet per year. Rio Grande is negotiating a lease with the
Pueblo Boazd of Water Works which contemplates Rio Grande leasing 100 acre feet per
year of water for the facility.
Further, Rio Grande is studying the availability of groundwater in the project area,
facility design in order to transport water, and ways in-which discharges from the project
can be minimized in order to avoid impacts to the surface water systems in the azea. Rio
Grande is prepazing to design a system that will meet its needs for mining, production
and minimizing dust emissions while protecting these water resources.
•
APPCxhibitsA-r-APPQ 180)BevB/January 17, 2002 G-2