1b Infiltration/Inflow: Approve Plans & Specs - Auth Ad for Bids
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone 952.227.1180
Fax: 952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax 952.227.1404
Planning &
Natural Resources
Phone 952.227.1130
Fax 952.227.1110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax 952.227.1310
Senior Center
Phone: 952.227.1125
Fax 952.227.1110
Web Site
www.ci.chanhassen.mn.us
~b
MEMORANDUM
TO:
Todd Gerhardt, City Manager
FROM:
Paul Oehme, P.E., Dir. of Public Works/ City Enginee;\{c (!),
O~.
DATE:
June 16,2006
SUBJ:
Infiltration/Inflow, PW254B: Approve Plans & Specifications;
Authorize Ad for Bids.
REQUESTED ACTION
Approve Plans & Specifications; Authorize Ad for Bids.
BACKGROUND
On December 12, 2005, Council held ajoint meeting with Metropolitan Council
staff to discuss the MCES Sanitary Sewer Surcharge Program.
On June 12,2006, the Council reviewed a Sanitary Sewer Infiltration and Inflow
(1&1) Reduction Plan.
DISCUSSION
The 2006 I & I project is to fix known problems with the City's sanitary sewer
system that contributes to I & 1. These improvements include lining sewer
pipes, pipe joint sealing, grouting manholes and pipe joints. Also included in
the project is televising over 2500 ft. of sewer pipes and inspecting manholes to
prepare for potential improvements for next year's project.
Staff is also planning to include televising all of the MCES Interceptor within
the City of Chanhassen. If I & I problems are identified in these lines,
improvements will be proposed for 2007. Staff is working with MCES on this
work and agreement.
Funding for the City's portion of the project is proposed to be paid for by the
Sewer Utility fund. MCES will pay for 100% of their project cost, which
includes any indirect costs (engineering fees), televising and fixing any
associated problems.
Attachment
c: Todd Hubmer - WSB & Associates, Inc.
G:\ENGIPUBLlC\PW254 1&I\Bkgd 062606 aprv p&..doc
The City ot Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play.
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Capital Improvement Program
City ofChanhassen, MN
~S-012
2006 thru 2010
Contact Unassigned.
Department Sanitary Sewer Improvements
Project #
Type Improvement
Useful Life Unassigned
Category Utilities
Priority nla
Project Name Inflow and Infiltration Abatement
Account # 1
Account # 3
Account #2
Total Project Cost $450,000
.
Description 1
This annual project includes televising, repairs and rehabilitation of existing sanitary sewer. The program also detects and eliminates points of entry of ground .
water and s!lrface water into the City sanitary sewer system.
.
Justification
1
City staff has identified numerous older sewer lines that are in need ofrepair. The City ofChanhassen pays the Metropolitan Council for sewage treatment. Those
payments are based on the amount of flow generated by the City of Chanhassen. Surface water and ground water that makes its way into the system either through
breaks, displaced joints, manhole covers, or private connections to the system increase the amount charged to the City for sewage disposal and inereasing the load
on the City's lift stations. Also, MCES may place a surcharge on cities that are not trying to improve'the inflow and infiltration problem.
Expenditures
Maintenance
2006
150,000
150,000
2007
75,000
75,000
2008
75,000
75,000
2009
75,000
75,000
2010
75,000
75,000
. Total
450,000
450,000
Total
Funding Sources
Sewer Utility Fund
2006
150,000
150,000
2007
75,000
75,000
2008
75,000
75,000
2009
75,000
75,000
2010
75,000
75,000
Total
450,000
450;000
Total
OperationolImpactlOther I
The efforts mayl decrease operational costs, emergency caU outs and maintenance costs.
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