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❖ Salt Deliveries
With the turning of the leaves, we have
turned the corner from the warmth of
summer to the cool and crisp of autumn.
Invariably in Minnesota, that will give
way to the biting cold and snow of a
typical winter. It also means that we
have begun preparations for snow
removal and ice control. The first part of
those preparations was the receipt of
1,500 tons of salt. The City purchases its
salt through a cooperative purchasing
venture with the State of Minnesota. We
send our projected needs to the state each
spring and they negotiate a contract with
the vendors. Through the aggregation of
both state and municipal needs, they are
able to contract for the best prices for each
entity. It also saves us time by doing away
with the need to prepare specifications and
request bids. The early delivery gives staff
the opportunity to calibrate spreaders and
means that we will be ready for the first
winter storm.
❖ Spray Patching
As we have mentioned in the past,
repairing potholes and patching distressed
areas of asphalt is almost a year round
task. One thing new this year was the use
of a spray patcher to help with some of
the widely dispersed asphalt repair needs.
A spray patcher is a self - contained unit
that carries rock chips and emulsion that it
uses to fill potholes and cover other
LAKEVILLE OPERATIONS & MAINTENANCE
Christopher Petree, Director
September 2010
surface distresses. The patcher drives up to the
pothole, which has had the loose debris removed,
and the nozzle on the front boom sprays the
emulsion into the hole to help with bonding to
the existing asphalt. The operator then sprays in a
mix of emulsion and rock chips, much like
standard hot mix, until the area is filled and level.
It then covers the patch by spraying dry rock
chips. The benefits to a spray patcher are the
speed with which it works, the limited amount of
support it requires, and the high quality of the
resulting patch. The patches produced by the
spray patcher appear to be as effective and long
lived as any standard asphalt patch.
❖ 2009 Water Fluoridation Award
The Utilities Division recently received
the 2009 Water Fluoridation Quality
Award from the Centers for Disease
Control and Prevention (CDC).
Presented by the Minnesota
Department of Health, the award
recognizes those water systems that
adjust the fluoride concentration in
drinking water to achieve a monthly
average fluoride level that is in the
optimal range for 12 months of a
calendar year. Data supporting City
fluoride levels is documented in the
CDC's Water Fluoridation Reporting
System. Water fluoridation's primary goal is
the most prevalent chronic diseases worldwi
..Weal, Peer...
2009
Water Fluoridation Quality Award
LAKEVILLE
Minnesota
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to prevent tooth decay, which is one of
de. Fluoride can be found in most water
sources though levels may not be
within the recommended range.
Utilities staff measure levels in
Lakeville's water daily to ensure that
enough is added to reach the proper
level required by the state. The CDC
initiated the award program in 2002 to
recognize outstanding performance by
water systems. Lakeville is one of a
number of cities receiving this award.
This year marks the 65 anniversary of
community water fluoridation.
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❖ Water Use
Overall water use throughout the summer reflected the abundance of rain that the
area has received. According to the National Weather Service, the metropolitan area
has received approximately 38 days of rain at .1 inches or greater. That is 60 percent
more days of rain than we received in 2002 and the most days of rain in the last 10
years. The amount and timing of the rain is reflected in our water use where our
peak day this past summer, occurring on August 29, was just over 13 million gallons.
That is the lowest summer peak in the last 10 years. This summer has been one of
the best indicators of the impact that the weather has on the water system.
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