HomeMy WebLinkAbout2022-03-10 Council Work Session MinutesCITY OF CORCORAN
City Council Work Session Minutes
March 10, 2022 — 5:30 pm
The Corcoran City Council met on March 10, 20221 in Corcoran, Minnesota. The City Council work session
meeting was held in person and the public was present in person and remotely through electronic means using
the audio and video conferencing platform Zoom.
Mayor McKee, Councilor Bottema, Councilor Nichols, Councilor Schultz, and Councilor Vehrenkamp were
present.
Interim City Administrator Beise and Deputy Clerk Friedrich were present.
1. Call to Order /Roll Call
Mayor McKee called the work session to order at 5:32 pm.
2. Water Supply Planning Work in Progress Update
Ash Hammerbeck, Stantec Engineer, summarized water supply focus items for the work session. Engineer
Hammerbeck noted Council direction is necessary regarding water treatment processes, disinfection
chemical processes, and water tower volume selection. Council and staff discussed water demand and
project phasing. Engineer Hammerbeck reviewed the four elements and changes, noted no changes to well
#1, additional trunk infrastructure with a raw watermain to well #2, water treatment plant capacity increase
from 1.4 MGD to 2.3/3.5 MGD, water treatment plant long-term planning regarding water softening, water
treatment filtration and moving from two to three filter cells, additional land acquisition costs with water
tower location change, and additional watermain length cost related to the new location. Engineer
Hammerbeck noted market volatility and project cost escalation relating to materials due to inflation, from
original project estimate from June of 2021. Public Works Director Mattson noted costs would be estimated
at decision points. Engineer Hammerbeck noted increased cost on treatment plants with larger treatment
capacity from 1.4 MGD versus 2.3/3.5 MGD, and mentioned ultimate treatment facility buildout capacity of
6 MGD. Council and staff discussed capacity of 1.4 MGD and transitioning to 2.3/3.5 MGD. Engineer
Hegland noted increase in cost is reflected in the price per gallon of treated water from 1.4 to 2.3 MGD
along with inflationary factors. Engineer Hammerbeck reviewed costs composite versus pedestal type
water tower units. Engineer Hegland added cost increases are reflective of steel prices, water mains, and
construction price increases. Public Works Director Mattson reviewed collection of TLAC fee credits
through development fees, trunk main fees, and user fees. Staff discussed TLAC fees and growth impacts.
Engineer Hegland noted one larger tower controls hydraulics within system with a secondary tower in
separate location. Public Works Director Mattson noted future locations can be monitored as developments
are established in Corcoran and understanding initial investments benefit entire system in the future.
Engineer Hegland noted concrete gravity plants are to City's benefit. Engineer Hammerbeck presented cost
comparison on chemical treatment plants, noting chlorine gas storage treatment is less expensive than
hypo chloride. Engineer Hammerbeck noted safety concerns of chemical treatment plants. Council
discussed treatment options and material chain supply with each option. Council discussed unknown
inflation variable from previous projections noting Council discussions once final estimates are available.
3. Unscheduled Items.
No unscheduled business was heard.
4. Adjournment
MOTION: made by McKee, seconded
Voting Aye: McKee, Bottema, Nichols,
(Motion carried 5:0)
Meeting adjourned at
6:42 pm.
Michell+e�Friedrich —Deputy Clerk
by Nichols to adjourn.
Schultz, and Vehrenkamp
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