2016-07-21_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 7/21/2016
• From: Mountain Coal Company
• To: DRMS
• Annual Report Year: 2015
• Permit Index Doc Type: Hydrology Report
• Email Name: LDS
• Email Name: JRS
• Media Type: D
• Archive: No

West Elk Mine 2015 Surface Water and Groundwater Quantity and Quality Data Summary 2
Table 1. Baseline and Routine Monitoring Frequencies
Routine Monitoring
Baseline Monitoring
Rising Limb
April 3 to May 13
Peak Flow
April 21 to June 26
Low Flow
July 10 to October 8
Month
Flow / Level
Field
Parameters
Laboratory
Analysis
January
February
March
April
X
X
X
M
May
X
X
X
June
X
X
X
July
X
X
X
August
X
X
X
September
X
X
X
October
November
December
Adapted from CDRMS (2006)
After monitoring sites have been monitored for five years (including approximately one year of
baseline monitoring), the analytical parameter suite list is typically reduced and samples are
submitted for laboratory analysis of total suspended solids (TSS), total dissolved solids (TDS),
EC, pH, dissolved iron, and total iron. Field parameters (pH, EC, temperature, and flow or water
level) are also recorded.
The Upper and Lower North Fork and Middle Sylvester Gulch monitoring sites have expanded
analytical parameter suite lists, in order to provide data for the on-going characterization of the
North Fork. The North Fork and Middle Sylvester Gulch lab parameters include those listed in
Table 2, plus chromium, nickel, silver (total), cyanide (total), iron (total recoverable), alkalinity
(total CaCOA bicarbonate, carbonate, hydroxide, nitrogen (ammonia), ortho-phosphorus
(dissolved), and sodium adsorption ratio (SAR).
June 2016 HydroGeo, Inc.