Laserfiche WebLink
ASPHALT <br />SPECIALTIES CO. <br />10100 Dallas St. • Henderson, C080640 • (303) 289 -8555 Fax: (720) 289 -7707 <br />July 22, 2014 <br />Mr. Al Stafford <br />Colorado Department of Public Health & Environment <br />Permits Unit, Water Quality Control Division <br />4300 Cherry Creek Drive South <br />Denver, CO. 80246 -1530 <br />RE: Renewal Application Supplements for COR- 341621, COG - 500471 and COG - 500452 <br />Dear Mr. Stafford: <br />Enclosed, please find the completed referenced discharge application supplements for our three <br />locations with one having a stormwater discharge permit only and two with regular discharge <br />permits (for mine de- watering only). You only have one location for signed certification of these <br />supplements, yet the CDPHE recognizes two types of signatures. By definition, Dan Hunt is the <br />legal permittee for these permits and I am the "cognizant official ". Since the requirement for <br />signature of these supplements from a corporation is a corporate officer, Dan Hunt has signed <br />them. However, all DMR's and stormwater reports are signed by me. Some explanation of each <br />of these sites is in order: <br />1. Speer Mining Resource /Inert Landfill (COR- 341621): This site is required to still have a <br />DRMS permit only because it is still bonded through the DRMS for reclamation. <br />Therefore, the site requires a stormwater discharge permit only. There is no active mining <br />or processing of aggregate on this site. There are no product wash waters. The site is <br />undergoing backfilling with inert landfilling materials and is under the jurisdiction of the <br />CDPHE Hazardous Materials and Waste Management Division through a Certificate of <br />Designation. I am required to groundwater sample four wells at this site for RCRA 8 <br />metals, BTEX VOC's and cations /anions. We have recently dug a shallow channel <br />leading from the north end of the 15 -acre lake on the site to the Platte River. The inert <br />landfilling activities are taking place at the south end of the lake. This channel serves <br />only as an overflow channel from the lake to the river during the high groundwater period <br />in the spring and early summer and is designed to alleviate upgradient mounding of <br />groundwater (to the east of the lake /operation). There is no stormwater overland flow that <br />enters the lake from our landfilling operations. <br />2. Nelson Mining Resource (COG - 500471): This mine site only produces very clean mine <br />de- watering discharge during the occasional time periods that we "dry" mine the site. <br />There is no aggregate washing of products and therefore, no product wash waters. There <br />is no discharge of mine de- watering water to St. Vrain Creek as the de- watering water <br />enters a closed, un -lined lake to the immediate north of the mining area. We have not <br />mined at this site in at least a year, and when we do, it is only for 2 -3 months at a time. <br />