INSPEC12423

• Permit No: C1981041
• IBM Index Class Name: Inspection
• Doc Date: 10/4/1996
• Doc Name: COAL INSPECTION REPORT
• Inspection Date: 9/30/1996
• Media Type: D
• Archive: No

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' III. COMMENTS -COMPLIANCE
Below are comments on the inspection. The comments include discussion of observations made
during the inspection. Comments also describe any enforcement actions taken during the
inspection and the facts or evidence supporting the enforcement action.
each consisting of a section of chalked slat placed inside a length
of capped, perforated PVC pipe, staked in place at a calibrated
channel cross section. The crest stage gages are monitored
monthly, and flows are measured at the time of monitoring with a
portable flume, if measureable flows exist. The crest stage gages
located on BLM surface within the wilderness study area are painted
a tan color to blend with the surroundings, as stipulated by BLM.
At the time of the inspection, Coal Creek was dry, and there was no
measureable flow at either of the monitoring sites on Jerry Creek,
although there was some water puddled in the channel at both the
upper and lower monitoring sites, and there was some flow in a
portion of the drainage between the monitoring sites. The operator
recorded peak flow elevations, and re-chalked the slats at each of
the four crest stage gages.
Rapid Creek and Cottonwood Creek surface water stations have been
in place for a number of years. These stations are flumes of
various dimensions, each connected to a stilling basin equipped
with a continuous recorder. The operator checks these sites every
few weeks to insure that they are functioning properly, and to
manually record water levels indicated on the flume, for
calibration purposes. During the inspection, the operator recorded
flow elevation in the flume, replaced the chart paper and re-set
the recorder at each station. The permit specifies continuous flow
data for SWGS-O1, but only bimonthly data from June-November for
the other gaging stations. The flumes apparently work well except
during peak flow periods when they are occasionally overtopped,
clogged by debris, or dislodged. The need for peak flow data with
respect to SWGS-O1 will be reviewed in conjunction with the current
AHR review and PR-02, and the monitoring schedule or design will be
amended as appropriate. At SWGS-02, the connection between the
flume and the stilling basin appeared to be somewhat out of level,
and repair appears to be necessary to insure that the continuous
recorder would function properly at low flow levels. Permit
requirements are still being met here by the manual bimonthly
measurements taken June-November.
Alluvial ground water wells GWMS-O1 (A and B), and 03 (A and B), on
Rapid Creek, and GWMS-02 (A and B), on Cottonwood Creek were also
inspected. Water levels are monitored in these wells in May and
September. Measurements were not taken during the inspection.
The operator indicated that preliminary plans to drill several
wells for monitoring effects of mining on the Rollins Sandstone
were being considered, in response to midterm review concerns.