Brighton 2008 WCPlan

• Project Type: Water Conservation Plan
• Contract/PO #: OE PDA 07-72
• Applicant: City of Brighton
• Project Name: City of Brighton Water Conservation Plan
• Title: Final Water Conservation Plan
• Date: 4/1/2008
• County: Adams
• Water Conservation - Doc Type: Complete Plan

Water Supply to Meet Annual Potable Demand
Annual water supply from groundwater and surf ace water sources to meet annual
treated water demand was forecast based on the sum of each years observed or
predicted monthly treated water demand plus 20 % for water treatment plant
operations (including brine water reject) and 7.45 % for unaccounted for water that is
lost from the system once the water leaves the treatment facilities. Figure 5 presents
the f orecast annual groundwater production rates in acre-feet.
Based on this forecast, it can be seen that the annual water supply needed to meet the
treated water demand will increase f rom the current level of about 6,200 acre-feet in
2006 to over 10,000 acre-feet in 2017.
A recent estimate of the alluvial well system sustainable yield was developed by the
Department of Public VlTorks based on the current infrastructure limits and the current
recharge rates. The estimated yield f or the existing South Platte and Beebe Draw well
fields combined is about 5,400 acre-feet per year not taking into account the planned
expansion of the northwest well field by the City f or an additional 4,600 acre-feet.
Figure 5 -Water Supply Needed to Meet Annual Potable Demand
12, 000
10, 000
L
~ 8, 000
3
6 000
a~ '
a~ 4, 000
L
v
2, 000
N M ~ ~ O ~ 00 O O ~ N M ~h ~ C~ I~
0 0 0 0 0 0 0 0~~~~~~~~
O O O O O O O O O O O O O O O O
N N N N N N N N N N N N N N N N
List of Other Assumptions
In addition to those assumptions presented above, the following list of assumptions were
used to develop the forecasted water demands:
Cih~ of Brighton Wnter Cofiservntiofi Plnri 14