Laserfiche WebLink
• Page 2 <br />constructability of the liner using typical earthmoving equipment The linear <br />footage of the two liner systems is approximately 1500' (Surcharge) and <br />4700' (Raindance). <br />7. Borings were concluded in a grid pattern across the property to determine the <br />depth to daystone and the volumes of each of the soil stratum. his <br />anticipated that the reservoir bottom will not need to be lined with a soil liner <br />as the exgvation shall expose daystone over the entire area of the bottom of <br />reservoir. In areas that an: delineated as areas of conoem for seepage due <br />to craddng, fissures, shear nines or other undesirable features shall be lined <br />with daystone that has been worked, water treated, and compacted to 95°k of <br />max dry density. All indications from soil testing show the existing soils to be <br />suitable liner material. <br />8. The applipnt shall be pursuing the 100°h bond option as there is not a bond <br />option providing an upfront discount util¢ing a day liner design. The applicant <br />desired a phased bond for the Raindance Reservoir (East Pi[) and Surcharge <br />Reservoir (West Pit) areas. The applicant requests that only the Raindance <br />Reservoir area be bonded initially, with the understanding that the disturbance <br />within the Surcharge Reservoir area shall rrot begin until an additional bond <br />has been posted. <br />9. The total volume of pit floor shale required to construct the day liners is <br />80,650 yd3 for Raindance Reservoir and 22,150 yd3 for Surcharge Reservoir. <br />Please see the attad~ed F~chrbit L for estimated costs assodated with pond <br />dewatering and liner excavation, spreading, cond'Rioning and compaction, <br />and Construction QAlQC. The filter layer and gravel buttress is a suggestion <br />to provide protection from wave impact. The operator's experience is that this <br />type of protection is not needed for this application. The surface area is <br />relatively small and the effect of the wind does not make strong waves. Also, <br />the side slopes are 3H:1 V and have proven to be stable along the shoreline in <br />the Water Valley subdivision where the operator has oompteted four <br />reservoirs with much larger surface areas and a similar liner design. <br />10. The minimum depth of topsoil for the reclaimed areas is 6° and the total <br />volume of material to be used for reclamation is approximately 37,000 yd3. <br />11. The area to be revegetated is approximately 143,750 tt~ or 3.3 acres for <br />Raindance Reservoir, 226,500 ftz or 5.2 acres for the surcharge reservoir, and <br />261,360 ft or 6.0 acres for the stodq~ile and plant site anas. <br />6.4.7 Exhibit G -Water Information <br />12. Verbal approval from the B.H. Eaton Ditch Company has been received for <br />the disdharging from dewatering into the ditch. An application has been filed <br />with the department of health for the discharge permit and is pending <br />approval. The appliatnt commits to not discharging water from the site until <br />written approval is obtained from the B.H. Eaton Ditctr Company, and a <br />discharge permit is approved by the Water Quality Control Division of the <br />State Health Department. <br />