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6/10/2013 14:1014:10 <br />Jones, Dennis D. <br />From: <br />Jones, Dennis D. <br />Sent: <br />Thursday, May 23, 2013 12:55 <br />To: <br />'Morgan - CDPHE, Kelly' <br />Cc: <br />Cochran, John N.; Dunfee, Brian P. <br />Subject: <br />pscm outfall 004 may 2013 <br />Attachments: <br />npdees4 050613.pdf <br />Kelly, <br />I received from ACZ Labs on 5/21/13 results from our 5/6/13 sample at Outfall 004 for the Peabody Sage Creek Mine <br />(PSCM), CO- 0048275. The lab data indicates that we may potentially be out of compliance of our DMR limit for <br />potentially dissolved (PD) selenium (Se), 4.6 ug /I. The lab data indicates a value of 6.4 ug /I for PD Se. The total <br />recoverable (TR) Se value is 7.2 ug /1, and the dissolved (DS) Se value was 8.4 ug /I. <br />Attached to this email are the lab results for Outfall 004 (aka, NPDES4). Also in that attachment are the results for Site <br />SSC6, which is the site below the Outfall 004 wetlands that we are considering for a point of compliance for Se. Data for <br />that site are 3.4 ug /I PD Se, 3.6 ug /I TR Se and 3.2 ug /1 DS Se. This indicates that the wetlands site is in compliance for <br />the Se limit. <br />PSCM considers this to be an upset condition, in that 1) we can identify the specific cause of the upset (snowmelt <br />runoff), 2) the facility was being properly operated and maintained, and 3) we submitted proper notice of this upset (ie, <br />this email). This possible exceedance occurred during high flow as a result of spring snowmelt and runoff, similar to the <br />conditions that occurred during the alleged prior selenium exceedances. Due to these climatic and hydrologic factors, <br />the high selenium levels may be contributed by other sources. As you know part of sampling activities is to identify and <br />quantify such sources. In addition, we did get about 2 inches (melted water equivalent) of late, heavy snow in April prior <br />to the sampling event. <br />I left a phone message and email for you on May 21, 2013, reporting this excursion at Outfall 004. PSCM considers that <br />to be our CDPS permit required 24 hour notification. The permit requires that we also submit within 5 days a written <br />report. If this email does NOT fulfill that requirement, please let me know, and I will follow up with a mail letter. <br />Thanks you, <br />Dennis Jones <br />Hydrologist - Seneca Coal Co. <br />970 - 276 -5209 <br />djonesopeabodyenergy.com <br />Peabod <br />� cY <br />37796 County Rd. 53 <br />PO Box 670 <br />Hayden, CO 81639 -0670 <br />