2019-10-01_REVISION - M1986015 - Laserfiche WebLink

Home Browse Search

RPM,Inc. R�w> enr n September 25, 2019 OCT 01 2019 Colorado Division of Reclamation Mining and Safety AWMcRIM.Cp ro Attn: Mr. Patrick Lennberg ��//�� 1313 Sherman St., Rm. 215 Denver, CO 80203 RE: Response to Adequacy Questions Dated July 1, 2019, Technical Revision(TR-05), Pueblo East Pit, M1986-015 Dear Mr. Lennberg, Following are responses to the DRMS Adequacy Questions dated July 1, 2019. The Division's Questions are in italic font and our responses are in plain font. Question 1: "Please provide up-to-date location maps for each groundwater monitoring well set. " Response: A GoogleEarth ®map, Figure 1, which show the location of each monitoring well set. Figure 1 is part of the attached document prepared by BBA water Consultants. Question 2: "Please indicate on the maps, where applicable, any wells that may have been abandoned and the year of the abandonment. " Response: Page four of the BBA document(Well Abandonment Forms) discusses the wells which have been abandoned. The monitoring wells which were mined through were properly abandoned with the State Engineer. Two wells MW-7and MW-10 still exist. According to the BBA document,the two wells, "... are not accessible for monitoring purposes due to land use constraints..." and are not being monitored at this time. Question 3: "Please provide a graph for each well monitored that summarizes all well level measurements collected for that location. " Response: Attached are graphs for each well monitored which summarizes all well level measurements collected for each location. The graphs are part of the BBA Water Consultants document. Figures 2-4 Question 4: Please provide an explanation, on the graphs,for any major increases, or gaps in data that are known. " RPM,Inc.,25049 E.Alder Dr.,Aurora,CO 80016 Phone:(303)854-7499 Email:h1humphries2l¢`comcast.net