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INSPEC34946
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INSPEC34946
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Last modified
8/24/2016 9:37:11 PM
Creation date
11/18/2007 10:48:54 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982057
IBM Index Class Name
Inspection
Doc Name
Inspection Report
Inspection Date
3/9/2005
Media Type
D
Archive
No
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III. COMMENTS -COMPLIANCE <br />Below are comments on the inspection. The comments include discussion of observations made <br />during the inspection. Comments also describe any enforcement actions taken during the inspection <br />and the facts or evidence supporting the enforcement action. <br />Aerial Photo #0220 taken 7/1 /04 shows mining disturbance in the 016 watershed, as well as Pond 016A, <br />and Pond 016 directly below. <br />A Pond 016 design revision was also approved within PR-3, in May 2003. The design revision included <br />SEDCAD documentation in Attachment 13-58, Appendix 1, and design drawing map Exhibit 13-g6 <br />(certification date 4/22/03). The primary change approved in the design revision involved reducing the <br />elevation of the principal spillway riser by 2.5 feet. Apparently, this design change was overlooked, and <br />did not get implemented. During the mid-term permit review in late 2003, the Division identified this <br />apparent discrepancy, and brought it to the operator's attention, in review Item #24, of the December <br />22, 2003 Mid-term Review Letter.. The review item stated: <br />A Pond 16 design revision was submitted in PR-3, Exhibit 13-gB. The approved version was <br />certified 4/22/03. -There are several design changes on the "Design Revision", as compared to <br />the As-Built" dated 9/26/01. Among these changes are modified Emergency Spillway Schedule, <br />Principal Spillway 2.5 feet lower than As-Bui/t" on the Stage Capacity Chart and Principal <br />Spillway Detail drawing, and de-watering orifice specified on ':4s-Built" is not shown on design <br />revision. <br />Please confirm whether these design modifications have been completed. if so, please provide a <br />revised construction certification and ':4s-Built° if the modifications have not been comp/eted, <br />please explain why. <br />The mid-term letter requested a formal response submittal package to address the 45 adequacy issues, <br />by the end of February 2004. However several response extensions were subsequently requested and <br />granted. The Division ultimately received the mid-term response technical revision on December 1, 2004 <br />Metter dated November 30, 2004). SCC's response to Item 24 indicated that "elimination of the 3-inch <br />dewatering orifice" had been completed, but that the "2.5-foot decrease in the principal spillway <br />elevation has not been completed". The comment further stated that SCC was continuing to investigate <br />the Pond 016/016A system to address the concerns, and that "SCC will address the Division's <br />comments...as soon as the evaluation has been completed". <br />The Division forwarded a TR-50 initial adequacy review letter to SCC on January 25, 2005. The Division <br />requested, with respect tc Item 24, that the operator "amend the application [to demonstrate that the <br />current pond spillway configuration was adequate] or commit to implementation of approved <br />modifications (if shown to be warranted) as soon as possible". The letter requested that SCC respond to <br />the concerns within 30 days of receipt. The Division prepared afollow-up letter on February 23, 2005, <br />specific to the Item 24 issue, following further investigation into the issue by Division staff and discussion <br />between Division and SCC staff. In that letter, the Division summarized the conflicting information <br />provided, including erroneous information regarding the reduced principal spillway elevation that had been <br />incorporated into recent SEDCAD documentation associated with Pond 016A certification. The Division <br />noted that "...we have two as-built reports with conflicting information and a design revision that <br />apparently was never fully implemented." The Division further stated: <br />Based on our review of this matter we have concluded that enforcement action is warranted, <br />unless the issue is promptly resolved. P/ease provide certified as-built documentation by Meich 9, <br />2005, demonstrating that Pond 016 was constructed in compliance with the approved plan, or <br />demonstrating that the existing two pond system as constructed complies with all applicable <br />performance standards. <br />4 <br />
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