HomeMy WebLinkAbout~Master - Contract Change Orders for Basin Liner Replacement and WPC Facility Biosolids Disposal Operations RESOLUTION NO. 12-610
RESOLUTION APPROVING CHANGE ORDERS FOR BASIN LINER
REPLACEMENT AND WATER POLLUTION CONTROL FACILITY
BIOSOLIDS DISPOSAL OPERATIONS
FOR THE CITY OF AMES,IOWA
WHEREAS,on September 11,2012,the Council awarded a contract to Ames Trenching and
Excavating, Inc., of Ames, Iowa, in the amount of$109,500 to repair the synthetic liners on two
equalization(EQ)basins and one biosolids holding basin; and,
WHEREAS, once the cleaning of the basins was under way (necessary to facilitate the
repairs), it was discovered that there were major liner failures located in the bottom of the basins,
and these basins are rendered unusable until the integrity of the liner can be restored; and,
WHEREAS, the City's consulting engineer on this project has determined that emergency
proceedings for complete replacement of the liners is appropriate,and the repairs need to be initiated
immediately; and,
WHEREAS, in order to perform the necessary repairs,the basins require complete removal
of all liquid and any remaining solids,and these solids are handled as biosolids and must be disposed
of in the same manner as the routine biosolids by land application; and,
WHEREAS, a contract was awarded to Nutri-Ject Systems, Inc., of Hudson, Iowa, to
complete the third year of a three-year biosolids disposal operation at the Water Pollution Control
Facility; and,
WHEREAS, staff has determined that Nutri-Ject Systems can cost-effectively perform this
emergency work in conjunction with the regular biosolids disposal operations that are occurring
concurrent to the liner repair activity, and,
WHEREAS,a change in contract scope is necessary for both Ames Trenching and Nutri-Ject
to complete the successful work; and,
WHEREAS, current costs for this work are shown as follows, as well as funding sources
identified for these unanticipated expenses:
Estimate for Liner Replacement
EQ Basin Replacement $107,552 each $215,104 (firm)
Sludge Basin Replacement $121,880 (firm)
Original FOX Contract $ 15,000 (paid)
Additional Engineering $ 7,000 (firm)
Basin Cleaning -Nutri-Ject $142,564 (invoiced)
Dewatering-Nutri-Ject $ 46,000 (est.)
$547,548 Subtotal
Contingency 20% (not incl. in original FOX contract) $106,510
$654,058 Total
Funding Sources
Original FOX Contract $ 15,000 (paid)
Current Ames Trenching Contract $105,900
Basin Cleaning Operations Budget $100,000
Savings on Painting Project $ 68,000
Savings on Motor Control Center#1 Project $ 25,000
Savings in previous years sewer rehab. $200,000
Needed from fund balance $140,158
$654,058
WHEREAS, the following contract change orders and budget amendments are proposed:
a) authorize staff to execute a change order add with Ames Trenching and Excavating, Inc., of
$231,084,for full replacement of three basin liners for anew contract total of$336,984;b)authorize
staff to execute a change order add with Nutri-Ject of$139,589.34 for biosolids application and
dewatering of the basins,for a total contract of$188,564;c)authorize staff to execute a change order
add with FOX Engineering of $7,000 for additional design and inspection services, for a new
contract total of $22,000; and, d) authorize budget amendments as described above, totaling
$654,058.
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Ames, Iowa,
to find that emergency proceedings are appropriate and that the aforementioned change orders with
Ames Trenching and Excavating,Inc.,Nutri-Ject,Inc.,and FOX Engineering are hereby approved,
and the budget amendments as described above are hereby authorized.
ADOPTED THIS 27th day of November, 2012.
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Diane R. Voss, City Clerk Ann H. Campbell, Mayor
Introduced by: Davis
Seconded by: Orazem
Voting aye: Davis, Goodman, Larson, Orazem, Szopinski, Wacha
Voting nay: None Absent: None
Resolution declared adopted and signed by the Mayor this 27th day of November, 2012.