2016-08-18_PERMIT FILE - M2016026

• Permit No: M2016026
• IBM Index Class Name: Permit File
• Doc Date: 8/18/2016
• Doc Name: Adequacy Review Response
• From: Greg Lewicki and Associates, PLLC
• To: DRMS
• Email Name: ACY
• Media Type: D
• Archive: No

Exhibit K-Climate
56. Information included is out dated(at least 16 years old). Quality of information submitted
meets the requirements. Please provide a more recent data set or state that none is available.
More recent data for Rifle and Grand Junction climates is available from the Western
Regional Climate Center. The tables below show that data.
Rifle,CO(NWS COOP Station 057031)Period of Record:1910-2009
Jan Feb Mar Apr May Jun ! Jul -1-Aug Sep Oct Nov Dec I Annual
Avg.Max. 36.8 43.9 53.8 64.2 74.0 84.0 90.2 87.7 79.4 67.3 51.4 39.4 64.3
Temp (F)
6 2 22Avg Min. 16 1. 12.4 31.2
Temp.(F)
Avg.Total 1 0.86 0.77 : 0.94 1.01 1.00 0.73 1.03 ! 1.14 1.14 1.19 0.88 0.93 11.61
Precip.(in.)
Avg.Total 11.0 7 6 ; 3 7 0.8 0.0 0.0 0.0 0.0 0.0 T 0. 3.7 11.1 38.5
Snowfall(in.)
Avg.Snow 4 3 1 0 0 0 0 0 0 ! 0 ! 0 0 2 1
Depth(in.)
Grand Junction,CO(NWS COOP Station 053489)Period of Record:1962-2016
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Avg Max. 38.6 1 46.2 56.7 65.7 76.0 86.8 ! 92.8 1 89.9 80.9 67.8 52.1 40.1 66.1
Temp.(F)
Avg Min. 17.3 24.0 32.3 39.5 48.4 57.3 63.7 61.6 52.6 40.8 29.3 19.4 ! 40.5
Temp (F)
Avg.Total 0.47 0.46 0.84 0.84 0.93 0.50 0.73 0.84 0.96 0.96 0.73 00.59 8.84
Precip.(in.)
Avg.Total 3.4 1.9 ( 1.6 0.4 0.1 0.0 0.0 0.0 0.0 0.3 1.3 3.8 12.8
Snowfall(in.) i
Avg.Snow 1 0 0 0 0 0 0 0 0 0 0 1 0
Depth(in.)
Exhibit L-Reclamation Costs
57. What is the recharge rate of ground water?The total pond inflow rate to be pumped in
addition to dewatering the 87.6 acre feet.
Based on our experience with numerous pits along the Colorado River, in order to dewater a
site of this size for operation, pit pumps have to run at least 3000 gpm to lower the water level
from its initial level, and run at 1000-1500 gpm to maintain the dry pit floor.
58. The reclamation plan and map show two ponds to remain post mining. Unless the Division
receives a copy of the well permit/application we will be required to bond for backfilling of the
ponds. *Or commit to not exposing ground water until a permit is obtained.
a. Number two indicated that the pit would be backfllled to the waterlevel.
b. Number 5 calls for topsoiling everything,even the bottom of the ponds.
c. Number 7 excludes seeding and mulching the bottom of the ponds
d. This is contradictory. If no ponds are to exist then all areas should be topsoil and
seeded. If ponds will exist,then all but below the waterline will require topsoil and
seed.