HomeMy WebLinkAbout~Master - Authorizing the Carry-Over of Unspent Funds for the Lime Sludge Disposal Operation RESOLUTION NO. 19-410
RESOLUTION AUTHORIZING THE CARRY-OVER OF UNSPENT FUNDS
FOR THE LIME SLUDGE DISPOSAL OPERATION
FOR THE CITY OF AMES, IOWA
WHEREAS, the City of Ames Water Treatment Plant (WTP) is a conventional lime-
softening facility that generates lime sludge as a by-product of the lime softening process; and,
WHEREAS, the lime sludge consists primarily of calcium carbonate and magnesium
hydroxide,which is dewatered and stored in lagoons prior to disposal on agricultural ground as a soil
conditioner; and,
WHEREAS,to continue to have adequate storage for the lime sludge,the lime sludge must
be cleaned out of the lagoons annually; and,
WHEREAS, on May 8,2018,City Council awarded a contract to Wulfekuhle Injection and
Pumping, Inc., of New Vienna, Iowa, for the removal and disposal of lime sludge; and,
WHEREAS,the contract agreement calls for the removal of 28,000 wet tons of lime at a cost
of$13.25 per wet ton, four dust control applications at $1,000 per application, and mobilization
charges totaling $6,900 for a total contract price of$381,900; and,
WHEREAS, the contract is renewable annually for a total of five years, dependent on
successful performance by the contractor each year, and the contract unit prices are fixed for the
entire five-year agreement; and,
WHEREAS,work performed under contract for FY 2018/19 was the first full year operating
with the new WTP and staff experienced many challenges with operation of a new facility,including
the approach to discharging lime sludge to the lime ponds; and,
WHEREAS,with the new facility,the process is designed to only allow intermittent flow to
the lime ponds; and,
WHEREAS,this intermittent flow,in combination with the extreme conditions the past year
contributed to multiple frozen layers of lime sludge in the ponds;
WHEREAS,a total of 18,279.75 tons were removed and a Change Order had been prepared
to deduct the remaining quantity of 9,720.25 tons from the FY 2018/19 contract,after which the FY
2018/19 contract is ready to be accepted as complete; and,
WHEREAS,in order to maintain the needed storage capacity,staff recommends moving the
savings of$128,793.30 from the uncompleted FY 2018/19 quantity to FY 2019/20.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Ames, Iowa,
that the carrying over to FY 2019/20 of$128,793.30 of unspent funds from FY 2018/19 that resulted
from incomplete work for the lime sludge removal operation, is hereby approved.
ADOPTED THIS 13`h day of August, 2019.
Diane . Voss, City Clerk John A. Haila, Mayor
Introduced by: Nelson
Seconded by: Gartin
Voting aye: Betcher, Corrieri, Gartin, Martin,Nelson
Voting nay: None Absent: Beatty-Hansen
Resolution declared adopted and signed by the Mayor this 13' day of August, 2019.