HomeMy WebLinkAbout2016.06.16 CC PowerPoint Storm Water ReuseWater Conservation and
Storm Water Reuse
City Council Meeting
June 16, 2014
Water Reuse Projects - Status
o Oneka Ridge Golf Course project online
Reduce Groundwater Pumping by 32 MG
Infiltration Trenches - 100 MG to 300 MG of
storm water infiltrated annually
75-225 Ib. of Phosphorus Removal Annually
Regional infiltration credit —Fox Meadows
o Additional reuse projects
Presented to the legislature
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Additional Reuse Projects
o Water's Edge
o Beaver Ponds
o CSAH 8
o Reduction of 50-60
MG/year
(Groundwater
Pumping)
Beaver Ponds Project
Tributary Area (Acres)
Irrigation Area (Acres)
2012 Irrigation Usage (MG)
Potential RCWD Credit —1"/wk
(MG)
Est. Storm Water Available (MG)
Est. % of RCWD
Credit Available
Est. % of 2012
Usage Available
Estimated Total Project Cost
200
34 (parks)
26 (d ev.) r • - el f
5.7
21.1
59%
100%
$200-$300K
a _
4vm
- I r r•
A Beaver
Ponds Park
I" Northern
a, Pines
Legend
Irrigation Azcounts
Storage Pc. ds
Park Ir-gaton Area
Imgaticn kea
El
Water's Edge Project
Tributary Area (Acres)
Irrigation Area (Acres)
2012 Irrigation Usage (MG)
Potential RCWD Credit —1"/wk (MG)
Est. Storm Water Available (MG)
Est. % of RCWD Credit
Available
Est. % of 2012 Usage
Available
Estimated Total Project Cost
$1,000,000
5
CSAH 8 City Irrigation
Tributary Area (Acres)
Irrigation Area (Acres)
2012 Irrigation Usage (MG)
Potential RCWD Credit —1"/wk
(MG)
Est. Storm Water Available (MG)
Est. % of RCW D
Credit Available
Est. % of 2012
Usage Available
Estimated Total Project Cost
2,737
10
5.4
6.0
6.0
100
100
$50-
$150K
Legend
Irrigation Accounts
Irrigation Are
Storage Pond
Potential Benefits
o Reduce Groundwater Pumping by 50-60 MG
Annually
o Reuse 50-60 MG of Storm Water
o Replenish the Aquifer
o Remove up to 800 pounds of phosphorus
annually
o Generate infiltration credits
o Add capacity for 800 homes
Other Considerations
o Estimated Capital Cost of $1.3 - $1.5 million
o Operations and Maintenance costs
o Lost water revenue
o Potential funding sources
City funds — water/storm water
Private funding, i.e. HOA
Developers — infiltration credits
End users, i.e. selling reuse water
G ra nts
Al
Project Process
o Compile Lessons Learned from Oneka Ridge Golf
Course Project
o Identify Partners for Project(s)
o Secure Project Funding/Financing Plan
o Complete Project Plans/Specifications/Permits
o Operations and maintenance plans
o Agreements with HOAs if applicable
o Develop model to apply to other projects
o Ordinance updates as necessary
Proposed Project Options
o Option 1—Implement Beaver Ponds Project
(Possibly Northern Pines Integration)
o Option 2 —Implement Beaver Ponds and Plan
Water's Edge/CSAR 8 City Accounts
o Option 3 —Implement All Three Projects
10
Next Steps
o Discussion by City Council regarding Project
Options
o Council Direction to Initiate Project(s)
Preliminary Design/Partner Discussions
Financing plan
11