HomeMy WebLinkAbout4.a. December 14, 2015 Regular Meeting Minutes
UTILITY COMMISSION
REGULAR MEETING MINUTES
December 14, 2015
CALL TO ORDER
Pursuant to due call and notice thereof the regular Utility Commission meeting of the City of
Rosemount was called to order on December 14, 2015, at 5:37 p.m. in the Conference Room of the
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City Hall, 2875 145 Street West, Rosemount.
President Speich called the meeting to order with Commissioners Connolly and McDonald, Public
Works Director Wrase, City Administrator Johnson, Public Works Coordinator Watson, Council
Member Demuth, and Recording Secretary Kladar attending. Rosemount Mayor Droste arrived at
5:45 p.m.
ADDITIONS OR CORRECTIONS TO AGENDA
None
AUDIENCE INPUT
None
APPROVAL OF MINUTES
Motion by McDonald. Second by Connolly.
Motion to approve the minutes of the November 16, 2015 Utility Commission meeting.
Ayes: 3.
Nays: 0. Absent: 0. Motion carried.
OLD BUSINESS
5.a.
None
NEW BUSINESS
6.a. Splash Pad Water Usage
Wrase summarized the item regarding city water use including the splash pad. Watson explained
that there are two meters which are attributed to splash pad use but one of the meters is actually for
Erickson Park irrigation. A corrected irrigation summary was distributed. Watson further pointed
out that irrigation at Erickson South was reduced due to the installation of the tennis courts.
Demuth noted that there are currently three fields in use at the Flint Hills Athletic Complex but
there will eventually be seven. She noted that in the past she suggested an irrigation well similar to
that used at UMore. Demuth estimates the cost of an irrigation well to be between $50,000 and
$100,000. There was discussion of such a well being a potential future capital project and possibly
including it as part of the new fields.
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Wrase referred to the 2014 WSB Technical Memorandum for options regarding splash pad water.
Option 1 is a recirculation system that involves an underground storage tank where water is
disinfected and sanitized before recirculating back to the splash pad. The cost of this option is
$258,000 with an annual expense of $16,000. Option 2 is a flow through system to sanitary at a cost
of $62,000 with an annual expense of $20,800 and may require a lift station.
Option 3.A (a flow through system to Erickson Pond) is currently used at the splash pad. The
upfront cost of this option was $0 with an annual expense of $13,740. The alternate options of the
flow through to Erickson Pond include 3.B which flows to an infiltration trench with a cost of
$86,000 with an annual expense of $13,740. Option 3.C.1 would flow through for irrigation re-use
with a cost of $111,000 with an annual expense of $13,740. Lastly, Option 3.C.2 would flow
through with irrigation use from a storage tank at a cost of $276,000 with an annual cost of $13,740.
Demuth inquired whether anybody had been checking pond levels. Wrase noted there was a small
variation from day to day which doesn’t significantly impact pond storage. He noted that the pond
maintains a normal level and if the City were to start drawing down it would reduce elevation.
Demuth inquired whether the City should seek other quotes on the cost of getting the water out of
the pond. She also noted that the Vermillion River Watershed would potentially provide grant
money if the City was to reuse the water.
The Mayor noted that in 2010 (a dry year), the city used 30,000,000 gallons to irrigate and said it
would make people feel good if they knew we were reusing the water. Wrase is concerned that if the
season was dry the pond would be drawn down too far as some of the water would be lost to
infiltration unless the storage tank option is used. Demuth will look into the grant options for water
re-use. Wrase will get more details on the various water re-use options and report back at the next
meeting.
There was general discussion about the master irrigation controller which the City will be purchasing
which includes moisture sensors and can be operated remotely. This system will increase the City’s
efficiency regarding irrigation.
6.b. 1.5MG Storage Tank and Booster
Wrase summarized the status of the 1.5MG Storage Tank and Booster and provided the plans for
review. The plant is set up as iron manganese treatment plant and the layout was for gravity
filtration. There has been previous Council discussion about potentially adding softening. Wrase
noted there are current three plants envisioned, southwest, southeast and northwest areas. If
softening is added the footprint of the plant would change. Mayor inquired whether it would make
more sense to have one large plant rather than three smaller ones. Demuth noted she was hoping
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Met Council would help pay for cost of softening as it would eliminate the salt brine discharge.
Mayor noted if that even if Rosemount did soften the water, the brine discharge would continue as
surrounding cities use one outfall. Demuth would like to explore the issue of softening water.
Wrase noted that Met Council isn’t treating for chlorides and if the levels are over 200 the water
can’t be used for anything.
7. PRESIDENT’S REPORT
President Speich had nothing to report.
EXECUTIVE DIRECTOR’S REPORT
8.a. City Projects Update
The attached project report was reviewed and Wrase provided a brief summary. Well 16 blasting
has been completed and pump testing will start in mid-December. Regarding Danbury Way, Wrase
reported there are three property owners who signed up for rain gardens. The 1.5MG tank final
plans are being prepared and the project will be bid in January and online by end of the year. Wells
4 and 5 sealing project was awarded to Keys. The City is waiting for the construction schedule to
proceed with abandonment of well 4 and if it is suitable to be converted to an observation well.
East Side Utility Study is underway to examine extensions of utility service necessary to prepare
southeast portion of the City for development.
8.b. 2015 Well Pumping Report
The attached report was reviewed. There was discussion about the rainfall, 10 day snow melt and
pond management. Wrase reported that the newer portion of the city has been designed to
accommodate 100 year rain event. Some areas in the southwest portion of town don’t have same
level of freeboard and may not accommodate such an event.
Mayor inquired about status of Vermillion River Watershed Study and the potential stormwater
pipe. Wrase reported that modeling has been done and a storm hydrological will be run over the
entire basin and to determine what the flow would be from Rosemount to various points. The
representatives from Vermillion River are agreeable to entertaining a variance from City regarding
increasing the outfall from certain locations. The City could potentially get a variance and
contribute to developing additional ponding outside the city limits. Wrase added there is some
capacity to the south but there is a pipe heading east which is bulkheaded at Akron and Connemara.
Wrase noted that a solution can be engineered for the overflow.
8c. Set Next Meeting Agenda for January 25, 2016
Wrase will provide more details on the splash pad water re-use options and will provide any updates
from Barr Engineering regarding the Vermillion River Watershed study.
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ADJOURNMENT
There being no further business to discuss the meeting was adjourned by President Speich at 6:35
p.m.
Respectfully submitted,
Karin Kladar
Recording Secretary
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