2016-02-01_HYDROLOGY - M1987049

• Permit No: M1987049
• IBM Index Class Name: Hydrology
• Doc Date: 2/1/2016
• Doc Name: Subsitiute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: TOD
• Media Type: D
• Archive: No

Jeff Clark Page 4
Bromley Lakes SWSP
February 10, 2016
6 0.0282
7 0.0234
8 0.0196
9 0.0164
10 0.0136
11 0.0114
12 0.0095
Total 1.0 1.0
The projected lagged depletions that are expected to hit the river during the period of this
SWSP total 113.2 acre-feet. This value includes depletions from past activity that hit the river during
this timeframe.
Replacements
The replacement sources for this SWSP include the following:
• Consumptive use portion of RMCC's 5 Fulton Ditch shares.
• Consumptive use credits from the Fulton Ditch shares previously stored in City of Brighton
storage (Kenneth Mitchell Lake, Erger's Pond or 124`h Storage Pond).
• Water lease with the City of Brighton for up to 250 acre-feet per year.
The previous SWSP approval required that any future SWSP requests provide additional
information about the use of the Fulton Ditch shares on the Arends and Tower Farms, including years
of use and non-use and a historical consumptive use analysis ("HCU"). RMCC now only included 5
Fulton Ditch shares associated with Arends Farm. The 11 Fulton Ditch shares previously included in
the SWSP associated with the Tower Farm were removed from the plan. However this SWSP will
make replacement of the remaining return flows obligations (January through March) from the use of
the 11 Fulton Ditch shares associated with the Tower Farm in the previous SWSP (see Table 1 C,
column 22).
As requested, a revised HCU analysis was provided with the SWSP request. In the previous
SWSP the HCU analysis for the 5 Fulton Ditch shares was strictly based on the analysis performed in
the support of the decree in case no. 2009CW279. For this SWSP request the HCU analysis for the 5
Fulton Ditch shares used on Arends Farm was extracted and modified from the HCU analysis
presented in the June 2010 engineering report ("Report") for case no. 2009CW279. Based on the
detailed reviewed of the HCU analysis in case no. 2009CW279 you have concluded that the
methodology used is adequate to support the site-specific analysis required for this SWSP, with the
following modifications.
RMCC's 5 Fulton Ditch shares were historically used on the Arends Farm along with 25 other
Fulton Ditch shares. The 25 shares were changed by Castle Pines North in case no. 2009CW279. The
decreed in case no. 2009CW279 actually changed the use of 105 Fulton Ditch shares. The five shares
used on the Arends Farm were part of the original HCU analysis performed for case no. 2009CW279,
from 1950 through 1985, but were not changed. In 1986 the 5 shares were sold to Henderson
Aggregate. You indicated that you do not have any information at this time regarding the use of the
five shares from 1986 to 2005. After 2005 RMCC started using the five shares in SWSPs. A copy of the
Report in case no. 2009CW279, dated June 2010 prepared by Applegate Group ("Applegate") was
submitted to this office with the 2010 SWSP request. The June 2010 Report describes the lands