HomeMy WebLinkAbout~Master - Engineering services for WPC Residuals Handling & Storage Study RESOLUTION NO. 09-045
RESOLUTION APPROVING CONTRACT FOR ENGINEERING SERVICES
FOR WPC FACILITY RESIDUALS HANDLING AND STORAGE STUDY
FOR THE CITY OF AMES
WHEREAS, the City's Water Pollution Control (WPC)Facility began operations in 1989; and,
WHEREAS, sludge from the treatment processes is treated in two primary anaerobic digesters
equipped with internally mounted draft tube mixing systems,and the digested sludge,referred to as biosolids
or residuals, is then transferred to a secondary digester for storage and further stabilization; and,
WHEREAS,digested sludge is routinely transferred from the secondary digester to a sludge storage
lagoon for holding until final disposal; and,
WHEREAS,the City owns and maintains two AgChem 2505 Terragators,which have been in use
since 1989, to land-apply the digested sludge to approximately 300 acres of City-owned agricultural land;
and,
WHEREAS,these two Terragators are approaching the end of their useful life,and the aging dredge
equipment is creating operational difficulties for WPC Facility staff, and,
WHEREAS,prior to investing significant funds into replacing the land application equipment, an
evaluation of the existing biosolids handling and storage operations is needed to ensure that the WPC Facility
continues to use the most cost-effective biosolids handling operation; and,
WHEREAS, staff solicited proposals from 11 consulting firms for engineering services to conduct
a Residuals Handling and Storage Improvements Study, and 6 proposals were received; and,
WHEREAS,a qualifications-based evaluation of the responding firms was performed by Water and
Pollution Control Department staff,and it was concluded that Howard R.Green Company of Johnston,Iowa,
was the preferred design firm.
NOW, THEREFORE,BE IT RESOLVED by the City Council of the City of Ames, Iowa,that the
contract with Howard R. Green Company of Johnston, Iowa, in an amount not to exceed $95,000 for
engineering services related to studying the WPC Facility's residuals handling and storage operations is
hereby approved.
ADOPTED THIS 10`h day of February, 2009.
Diane R. Voss, City Clerk Ann H. Campbell, Mayor
Introduced by: Goodman
Seconded by: Doll
Voting aye: Doll, Goodman, Larson, Mahayni, Popken, Rice
Voting nay: None Absent: None
Resolution declared adopted and signed by the Mayor this 10th day of February, 2009.