2011-09-14_HYDROLOGY - M2010049

• Permit No: M2010049
• IBM Index Class Name: HYDROLOGY
• Doc Date: 9/14/2011
• Doc Name: SWSP
• From: OSE
• To: Cheryl Signs Engineering
• Permit Index Doc Type: Hydrology Report
• Email Name: MAC
• Media Type: D
• Archive: No

WDID
Source
Appropriation Date
Decreed Amount
0600532
VCI Godding Ditch Diversion from
Idaho Creek
08/10/2001
11 cfs
0600551
VCI Rural Ditch Diversion from
Boulder Creek
08/10/2001
11 cfs
0600756
VCI Rural Ditch Diversion from
Idaho Creek
08/10/2001
11 cfs
0500642
VCI Godding Hollow Diversion
09/08/2000
11 cfs
0500589
VCI Last Chance Ditch Diversion
08/10/2001
11 cfs
0504001
112 Reservoir
08/10/2001
1,552 acre -feet
0504003
Dakolios Reservoirs
08/10/2001
1,104 acre -feet
0504002
Von Ohlen Reservoir
08/10/2001
1,300 acre -feet
0504000
Kurtz Reservoir
08/10/2001
4,000 acre -feet
Cheryl Signs, P.E.
Western Sugar Pit
Page 4
Dakolios Reservoirs and Von Ohlen Reservoir and subsequently released to replace non - irrigation
season depletions. An application for a change of water right (to allow the applicant's Rural Ditch
shares to be used in addition to irrigation for augmentation, replacement, exchange, commercial,
industrial, recreational, piscatorial, wildlife propagation and storage) and approval of a plan for
augmentation was filed with the Water Court in Case No. 2003CW306. The historical consumptive
use of the four shares of the Rural Ditch water averages 265.50 acre -feet per year with an historical
return flow obligation of the four Rural Ditch shares of 101.5 acre -feet. Excess consumptive use
credits from the four shares of Rural Ditch stored in the 112 Reservoir will also be released to replace
non - irrigation season depletions for the Durham Pit and,Everist's Lohmann Pit, Rinn Valley Pit,
Firestone Pit, Fort Lupton Pit and Lupton Meadows Pit.
To the extent possible, the return flow obligations will be supplied using VCI's consumptive
• use credits from Hayseed Ditch. The change of use from the Hayseed Ditch water owned by VCI was
decreed in case no. 1990CW174: If Hayseed Ditch credits are not sufficient to replace the actual
obligation, releases from the lined pits or replacement using direct flow will be made.
The water rights decreed in case no. 2001 CW274 can be used directly at the points of
diversion or retained in reservoirs for storage when the water rights are in priority or used by
exchange for releases from any or all of the reservoirs or any or all of the direct flow sources. The
decreed information for these junior water rights is shown in the following table:
cfs. Storage rates are 90 cfs for Rural Ditch and Godding Ditch, 10 cfs for Godding Hollow and 100 cfs for Last
Chance Ditch.
Note:
Total
direc
t
diver
sion
from
all
sour
ces
not
to
exce
ed
11
Four of these facilities identified as: the 112 Reservoir, Dakolios (East and West) Reservoirs
and Von Ohlen Reservoir will be used in this SWSP to store water available from Last Chance Ditch,
Rural Ditch and Hayseed Ditch. According to the decree in case no. 2001 CW274, water stored in the
reservoirs may be used for replacement of depletions at the mining sites owned or leased by VCI.
The Western Sugar Pit site has been identified as one of the mining sites where the junior water
rights decreed in case no. 2001 CW274 may be used as a source of replacement water. You have
provided reservoir operations study using the storage facilities as a whole. The beginning storage
contents were a combination of diversions from the Rural Ditch water and junior water diverted in
priority in accordance with the decree in case no. 2001 CW274. The attached Tables 2A and 2B
(Reservoir Operations Study) show the reservoir operations from May 2011 through April 2013. The
average ground water contribution and direct and indirect precipitation for the three reservoirs has