APPCOR10826

• Permit No: C1983058
• IBM Index Class Name: Application Correspondence
• Doc Date: 12/12/1983
• From: TWIN PINES COAL CO INC
• To: DNR
• Media Type: D
• Archive: No

Memo to Twin Pines from L. G, White, Dec, 6, 1983 Page 2
Statement from Phil Kessler, 440 Railroad, Rockvale, C0:
Mr, Kessler wa employed at Caldirola No, 2 from 1959 to 1962 as
the hoist open or, He was also responsible for pumping the sump
at the bottom c the slope, Mr, Kessler stated that almost all of
the water in tt mine came from a spring in the slope above the
sump which was ..pslope from a roll in the coal, He felt the
difference in e_evation through the roll was about six (6) feet,
While employed at the mine, he pumped the upper sump every day,
He stated that the water in the lower portion of the mine was only
pumped once every one to two weeks,
Statement from Joe Caldirola, 700 E, Main Street, Florence, C0:
Mr, Caldirola developed Caldirola No, 2 Mine, He stated that a
spring was encountered while driving the rock slope into the mine,
causing considerable trouble, He said they had to drive a sump
at the end of the slope to alleviate the problem, and control the
water, He confirmed the presence of a roll in the coal below the
sump and that the lower portion of the mine made very little water,
He stated that the spring in the slope was the source of water for
the Coal Creek Well,
b) In a study of the Coal Creek water supply by United Western
Engineers in 1974, the following was stated:
". Three members of the Town Board were in the slope
in 1969 or 1970 and reported it dry except in the westerly
third, There are apparently two main pockets of water in
the mine, one near the air shaft and one near the westerly
end of the slope, A well was surveyed to be drilled near
the west end, but instead was drilled as shown on Plate 3
near the middle of the slope in March 1970. This well hit
'gob' or pile of rock on the edge of the slope, extracted
electrical blasting wire, but the well was dry."
Additional information on the mine and water system is
included in the report, including water tests on the upper
pool of water which shows the vrater to be of "remarkably
high quality,"
c) The town of Coal Creek installed a pump in the mine air
shaft in 1969, Caving in the shaft resulted in the drilling
of a well into the upper portion of the mine in August 1975.
This well eras permitted as a replacement well in June 1975,
Permit No. 019890-F, In 1979 additional wells were drilled
near the bottom of the slope resulting in the present well
location in the upper mine sump. Electric power was dis-
connected at the pump meter in January 1983. No useage had
been recorded for two years prior to that time,
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