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Rule h,~,b I~.xhibit F-_I2celam}R+on Plan M11ap <br />15. Please provide the acreage of the pcnnittcd area and clearly illustrate the size and <br />location of the temporary sediment ponds on a map. Fl'I.LY' ADDRESSED <br />IG. Please clarify the discrepancies between the Carroll and Lang F31\1Ps maps and the <br />maps provided by I~crracon and revise maps accordingly. For cxarnplc, the Carroll and <br />Lang maps show one island in the: pond currently known as Pond 1t2. However, <br />I'crracods proposed reclamation plan map shows nvo islands in the same pond. <br />PUL1.Y ADDRESSIiD <br />'Lhc maps pn>vidcd to the Division during the recent clarification process illustrate riprap <br />placement activities to ixricntially occur outside of the pcrntit boundary to the south. plcasc <br />address. <br />Rule 6.4J h.shibit G- ~~'ater Iniimn;aion <br />17. The Division recciced comments from the Office of the State lingincer (OSF.) <br />regarding the proposed application. According to the OSE, bc1'ore a well penult c;m be <br />approved the applicant must conduct a field location of the site and d~uwncnt the <br />locations of all wells within 600 feet of tltc permit area. The applicant must then obtain <br />a waiver of ohjection from all w¢ll ovaners with wells within G(tt) feet of the permit area <br />or request a hearing before the State L•ngineer. See the attached OSE letter for further <br />detail. Please commit to not lurthcr exposing groundwater until a well pcnnit is <br />obtained from the OSE. In addition, once the well pemtit is obtained a copy must be <br />submitted to the Division. FULLY ADDRESSED <br />1R. Plrasc submit intirmtation that clearly dclines the gaining and~ix losing nature u1' St. <br />Vrain Creek in the vicinity of the permit area; this information Hurst be prepared by a <br />professional hydrologist orothcr yualitied prol'cssional. F'UI.L1' ADDRI{SSl?D <br />19. Please clarity the cstintated aceragc depth of the slurry wall. It appears Irom the huring <br />data provided in the amendment application that the average depth from the surlacc to <br />key in to bedrock is approximately 27 to 2R feet, rather than the 16 feet mentioned on <br />page one, k2, ot""Exhibit E. 11!LI 1' :'11)URL?SSED <br />211. plcasc explain how the operator will address areas of substantially coarser materials <br />such :rs gravels and cobbles coupled with the site's water tahle. plcasc provide a <br />discussion of slurry wall construction techniques that will be employed for the arc:LC of <br />b~avel and cobble penetrated by boring numbers I and R. FUI.LI' ADDRf•:SSI?D <br />21. plcasc provide clarification of potential solutions to pernuability issues arising as a <br />rrsuh of the intersection of the utilities' pipes (i.c. the water main in the hens hctvvicen <br />current ponds 2 and ?, also any gas tired sewer lines) and the proposed slurry wall. <br />Fl!LLY ADDKIiSSEU <br />Rule G.4. I U E~ltihit .l- b'egetation lnfomtation <br />22. hnapweed (a State listed noxious weed) appears on the southwestern side of the <br />current middle pond. Please submit a weed control plan per Rulc 3.1.1(1(6). plcasc <br />i <br />