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ENFORCE21665
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ENFORCE21665
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Entry Properties
Last modified
8/24/2016 7:31:41 PM
Creation date
11/21/2007 10:01:07 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Enforcement
Doc Date
10/3/2006
Doc Name
E-mail Regarding NOV
From
DRMS
To
Twentymile Coal Company
Violation No.
CV2006006
Media Type
D
Archive
No
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notified by phone on 09/12/06, with copies of follow-up communications <br />provided to the CDRMS. A representative of CDOW visit the site on 09/19/06 <br />Step 5: Notify downstream users from the Pond E discharge too the <br />confluence of Trout Creek with the Yampa River - Based on a list from the <br />CDWR provided on 09/19/06, attempts were made to contact the identified <br />water users by phone, followed by mailing of a registered mail notification <br />on the same date (copies of registered mail receipts attached). <br />Step 6: Assess discharge and receiving water quality, contain the coal <br />fines discharge, and assess potential toxicity. Provide an estimate of the <br />slurry volume discharged. Submit a writted report of such assessments - <br />Immediately on notification of the discharge, a sample of the coal fines <br />discharge was obtained at the Pond E outlet prior to sealing the discharge <br />structure. A sample was also obtained just beyond the identified <br />downstream limit o£ coal fines migration (both of these samples were <br />obtained on 09/11/06). We initiated a daily sampling program for several <br />downstream points the next day (09/12/06), continuing through present. The <br />coal fines discharge was contained through sealing of the Pond E discharge <br />structure and the emergency containment activities identified under Step <br />3, on 09/11/06. Potential toxicity was assessed on 09/11/06 and 09/12/06 <br />through review of the MSDS sheet for the flocculent used and through <br />contacts with the flocculent manufacturor re: any potential aquatic <br />toxicity (copies of documentation provided to CDRMS). Zt is difficult to <br />assess the volume of slurry discharged with any accuracy, after the fact. <br />We can, however, work with our Wash-Plant statistics and Pond E capacity to <br />come-up with an estimate. It is however, not practically feasible to <br />complete a report by the identified abatement date since we need to <br />complete the discharge calculations, and are waiting for water quality <br />analysis results. <br />Step 7: Submit plans for abatement, including the planned completion date. <br />Include directions, concurrence, or approval from CDPHE, CDOW, and USACE - <br />Clean-up plans were submitted to the CDRMS on 09/14/06 as MR06-211. The <br />CDRMS subsequently notified TCC that concurrence from CDPHE and CDOW would <br />be required. To meet this requirement, a copy of the clean-up plans was <br />submitted to these agencies by e-mail on 09/19/06, with a request for their <br />comments and/or concurrence. Effective clean-up is going to be weather- <br />dependent, given practical access constraints to the stream area and the <br />desire to avoid additional disturbance, so prediction of a firm clean-up <br />completion date is difficult. We are targeting clean-up ASAP and currently <br />anticipate that all related activities would be completed by the abatement <br />date of 10/30/06 for Steps 8 and 9. Given that we cannot control when, and <br />whether or not the identified agencies will provide comment/concurrence, <br />the abatement requirements for Step 7 need to be modified to address a "no <br />comment" situation, and adequate time needs to be provided to allow for the <br />specified review and concurrence actions. <br />Step 8: Continue water quality sampling and submit copies of reports to <br />CDPHE and CDRMS - As noted for Step 6, we have voluntarily implemented a <br />rigorous water quality sampling schedule, and will copy the CDRMS on all <br />related reports submitted to the CDPHE-WQCD. <br />Step 9/10: Reestablish DBMS approved sediment controls - Under a field <br />authorization, we are proceeding with modifications within the Pond E <br />impoundment area to isolate the coal fines within the pond and reestablish <br />the design storage capacity ASAP. We anticipate submitting a revised pond <br />design to address the interim and any long-term modifications. <br />Step 11: Submit a written report on completion of the clean-up to CDRMS, <br />CDPHE-WQCD, CDOW, and USACE - Wi11 be completed and submitted on completion <br />of the work. <br />Given the reasons noted above, and that the actions under Steps 6 and 7 are <br />not critical to protection of the environment, we respectfully request that <br />the abatement dates for Steps 6 and 7 be extended to 10/30/06. I have also <br />attached a revised application form for MR06-211, addressing your stated <br />4 <br />
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