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discharge of stotmwaters to the Tunnel Drive area up to a minimum 100 year event. Sediment pond # 1, located at the western edge of the mining zone, will intercept all storm flows entering the mining zone from the undisturbed watershed west of the mining area. # 1 sediment pond will be configured in an elongate shape minimally twice as long as it is wide, 100' long by 50' wide, and will include a bentonite or other water impermeable liner to minimize loss of storntwater to percolation through the sediment ponds walls and/or floor. A spillway will be located at the opposite end of the sediment pond's inlet which will be designed for uI~ to 200 cfs of flow. The spillway device will deliver storm flows into a storm ditch excavated into granite bedrock which will flow in a northernly direction at 1-2% grade and will intercept all storm flows from the mining zone as well as storm flows from the undisturbed watershed above and west entering the mining zone. The storm ditch profile may vary, as shown in the attached drawings, to facilitate mobile mining equipment movement across the site. The storm ditch will convey all stormwaters to the north to the SWMP area noted on the attached maps. Sediment pond(s) #5 area is actually a series of elongate sediment and stormwater containment structures connected by inlets and spillways designed to handle maximum stormwater velocities; and volumes as projected by the Sed-Cad and STORM program results utilized in the surface hydrological study. The thirty acre addition to the affected land acreage is specifically for the containment and management of storm flows formally flowing to the Tunnel Drive area and does not contain mineable reserves nor will be mined for construction materials in the future. The sediment pond/retension pond structures in the north SWMP area will be constructed from course alluvium materials currently in place on site and will be built to minimize disturbance to the area. That is, the construction will take place in narrow bands of disturbed alluvium necessary to construct the berms, outslopes, and basins of the elongate sediment ponds oriented in a north-south direction. The juniper-pinon cover will be retained as much as possible over the SWMP area. By increasing the flow path distance and decreasing storm flow velocities, it is intended to promote percolation of storm flows into the course alluvium materials underlying the area and result in no overland flow to neighboring areas to the east of the SWMP area. No negative impacts are anticipated to lands bordering the SWMP area to the east. The 13nd currently bordering the SWMP acerage to the east is Tezak Heavy Equipment Co, Inc. Property. Colorado State land administered by the Pueblo Community College is located east oFthis area between Tezak Heavy Equipment Co. Property and Sand Gulch, the main N-S drainage paralleling US Highway 50. PCC has been notified in detail as to the SWMP plan an~i has not responded to date. All disturbed areas within the SWMP acerage will be reclaimed via establishment of native grasses, forties, and shrubs, as noted in the species list included in the original amendment application package. Tree species such as pinon and juniper and shrubs such mtn mahogeny and four-wing saltbush may be included in the direct seeding of the sediment pond berm outslopes and disturbed ground within the sediment containment basin. Inorganic fertilizer will be applied at the time of seeding at rates equivalent to 100# Nitrogen and 80# Phosphorus. Seeding rates will be in the range of 40 # pls/acre. All seeded areas will be mulched with 4000#/acre clean straw mulch to promote moistere retention and vegetative establishment. Most of the construction will result in permanent stormwater control structures that will remain intact after completion of mining. As soon as the mine operator can ~;stablish Belt=sustaining vegetation on the disturbed areas (3-5 yrs) , T.H. E. will apply for bond release on the appropriate acreage under permanent reclamation.