CR 92-43 Approve Plans Groundwater Monitoring
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February 11,1992
Council Report 92-43
APPROVE PLANS & ORDER BXDS
GROUNDWATER MONITORING WELLS
HOPKINS LANDFILL SITE
ProDosed Aetion.
Staff recommends adoption of the following motion: ' Move that
Council adopt Resolution 92-15 . Resolution Approving Plans and
Ordering Bids. Groundwater Monitoring Wells. city Project 91-05.
Overview.
The MPCA approved the City's Landfill site Assessment Report in
November 1991. Approval paved the way for a specific groundwater
monitoring plan at the seventh street Landfill to be developed.
council has authorized Braun Intertec to undertake project bid,
specification, contract preparation; field investigation and
inspection; testing; final report preparation. Braun has
completed a project package for the Council's approval. upon
approval the City will advertise for bids.
Primary Issues to consider.
o What is the estimated cost of monitoring well
installation?
o What is the location of the proposed wells?
o What is the impact of this project on Westbrooke Patio
Homes?
o Who will monitor and maintain these wells?
o What is the project timetable ?
supporting Doeuments.
o Resolution 92-15
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James Gessele
Engineering Superintendent
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CR92-43
page 2
Analvsis.
o What is the estimated cost of monitoring well installation?
Braun Intertec estimates the installation of three
piezometers and thirteen wells at $98,000. This includes
landscaping and full restoration of property at all the well
sites.
o What is the location of the p~oposed wells?
The three piezometers will be located at the northeast
corner of the Seventh Street landfill site. Monitoring
wells will be located on the following properties:
Kant-sing at the end of 16th Ave. So. north of Soo Line
Venturian in Minnetonka
Greenfield Apartments
Westbrooke Patio Homes
(See Attached Figure)
Proposed Monitoring
Well Locations
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METHANE
BARRIER
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NORTH
LANDFILL
FIGURE 1
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Westbrooke
Townhomes
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CR92-43
page 3
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What is the impaet of this projeet on Westbrooke Patio
Homes?
Eight of the thirteen proposed wells will be located on
Westbrooke property. Unlike the methane barrier project
where the ifj>sue of risk to safety and health was the driving
force, this project's urgency lies in meeting a regulatory
requirement. Nevertheless, the presence of monitoring wells
on property has a negative impact on aesthetic appearance.
To that end the engineering consultant has designed at-grade
wells for the Westbrooke property. These wells will be
placed in parking lot and driveway areas and the only
visible feature will be an at-grade four-foot concrete slab
wi th a cover over the installation similar to that of a
manhole. Landscaping will be used to hide wells as much as
possible in other areas where guard posts are necessary.
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The city has met with the Westbrooke Association to
negotiate a revised long-term agreement which addresses the
groundwater situation. Such an agreement, or license,
permi ts the City to enter upon the Westbrooke common area.. to
install the wells and carry out a monitoring program. The
agreement should be finalized by February 15 and its terms
are discussed in another report on this council agenda.
Who will monitor and maintain these wells?
The monitoring wells will be the property of the City and
maintained 'by the same. Monitoring activities will be
carried out by the city's designated consultant engineer.
o What is the projeet timetable?
February 18
February 26, March 4
February 28, March 6
council authorizes bids
Advertisement in Sailor
Advertisement in Construction
Bulletin
March 10
Bid opening
March 17
Award of bid
April 1
May 1
Well installation begins
Construction complete
June 1
Restoration complete
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CITY OF HOPKINS
Hennepin County, Minnesota
RESOLUTION NO: 92-15
RESOLUTION APPROVING PLANS AND SPECIFICATIONS,
GROUNDWATER MONITORING WELLS, CITY PROJECT 91-05,
AND AUTHORIZE THE ADVERTISING FOR BIDS
pursuant to authorization by the Council on February 4,
1992, plans and specifications for installation of
groundwater monitoring wells on or near the Hopkins
landfill site have been prepared by Braun Intertec,
Inc. and they have presented such plans and
specifications to the Council for approval,
NOW THEREFORE BE IT RESOLVED, by the City council of Hopkins,
Minnesota: .
WHEREAS,
1. Such plans and specifications, a copy of which are
attached hereto and made a part hereof, are hereby
approved' and ordered placed on file in the office
of the City Clerk.
2 . The ci ty Clerk shall prepare and cause to be
inserted in the official paper and in the
Construction Bulletin an advertisement for bids
upon the making of such improvement under such
approved plans and specifications. The
advertisement shall be published twice , at least
ten days before date set for bid opening, shall
specify the work to be done, shall state that bids
will be received by the clerk until 10:00 a.m., on
the 10th day of March, 1992, at the City Hall and
that no bids shall be considered unless sealed and
filed with the Clerk and accompanied by a
certified check or bid bond, payable to the City
of Hopkins, Minnesota for 5% of the amount of such
bid.
3. The clerk and engineering superintendent are
hereby authorized and instructed to receive, open,
and read aloud bids received at the time and place
herein noted, and to tabulate the bids received.
The Council at its discretion may consider the
bids, and the award of a contract, at the regular
City Council meeting of March 17 , 1992, in the
Council Chambers. Award of the contract will be
made no later than the regular Council meeting of
April 21, 1992.
Adopted this 18th day of February, 1992.
Nelson W. Berg, Mayor
ATTEST:
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James A. Genellie, City Clerk