1992-04-22_REVISION - M1988112 - Laserfiche WebLink

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~ DF~FT Hioutes, April 2Z-23, 1992 30 Subject To Board Approval request. At this point, Board Member Stewart discussed her knowledge of other cyanide treatment methods. Staff noted that the Division does not disagree with the information provided by Dr. Hyatt. Regarding this matter, Mr. frank Johnson Clarified that the operator had submitted a technical revision which was approved by the Division. He said the Division is requesting that the Board approve the list of abatement requirements to which the operator has agreed. Mr. Johnson said that the operator will eventually have to modify the permit to include a new detoxification reclamation plan. In response to a concern ~`rcm Ms. Sigmund, Board Member Cattany suggested that the operator be required to achieve adequate cyanide levels by the June 1992 Board Meeting and that the Staff be directed to provide the Board with a preliminary evaluation on CyTox and the operator's progress toward achieving compliance. Board Member Stewart also suggested that a status report on each abatement item be provided at the May 1992 Board Meeting. Ms. Sigmund stated that the Board had approved the operator's permit conditioned upon water court approval. She referenced the documents attached to Exhibit C and said that an additional condition of that approval, to which the operator had agreed, was the placement of 3 lysimeters in the area, including testing and the forwarding of the results to the Board, the Costilla County Conservancy District and a neighbor. Ms. Sigmund introduced Scott Metford, a certified professional geologist, and said he haci testified at the water court hearing, regarding ground water contamination concerns. Mr. Metford said that because the mine is located rear the Rito Seco River, it might impacted. Mr. Metford listed and discussed the following concerns: 1) lack of reporting monitoring information, 2> modifications to the tailings which Leave cyanide concentrations higher than 4.4, 3) affects the operation might have on drinking water, 4) installation of lysimeters and 5) leakage of the primary liner in the coilection pond. Mr. Metford requested that the substantial changes to the monitoring plan being planned be subject to public review and comment. He also requested that the 3 lysimeters the operator installed be incorporated into the monitoring plan. Mr. Metford answered questions from the Board, specifically regarding cyanide testing and levels. Ms. Sigmund introduced hlaclavio Gallegos, the Costilla County Administrator. Mr. Gallegos presented EXHIBIT D, a copy of a resolution from the Costilla. County Commissioners, addressing 8 issues, in support of the efforts of the Costiita County Conservancy District. He stated that Maclavio Martinez would provide responses, regarding the resolution. Mr. Martinez referenced the resolution and specifically discussed their request that independent sample testing be provided and paid for by the