HomeMy WebLinkAboutDW Zinser - CO #3 - D-2024-10-02P - 2.17.2025D.W. ZINSER COMPANY
Demolition & Dismantling
Member National Demolition Association
1775 Commercial Drive, PO Box 398, Walford, Iowa 52351
Phone 319-846-8090 Fax 319-846-3351
Demolition Proposal — Change Order No. 3
Date: February 13, 2025
Mr. Aric Schroeder
City Of Waterloo, Iowa
715 Mulberry Street
Waterloo, Iowa
RE: St. Mary's Demolition Contract No. D-2024-10-02P
Aric,
Querchcn 9ir
Approved by Council
2/17/2025
emir
SIGNED
Pursuant to our phone conversations, I am providing information regarding consideration for change order #3 that
would provide for cleanup and loading, hauling and disposal of additional RACM materials encountered during the
demolition process.
D.W. Zinser Company will load, haul and dispose of identified asbestos material to the Black Hawk County Landfill,
at a cost of $168 per ton. This change order shall not have a maximum amount, and the City's third party
demolition monitor (Terracon Consultants, Inc.) shall verify the eligible tonnage amount that is RACM material
under this Change Order. D.W. Zinser Company shall not load any material determined by Terracon to be non-
RACM material in a load with RACM material, or any such load will not qualify for the $168 per ton fee provided for
in this Change Order.
Estimated amounts of the known RACM material include:
1. Villa Building -250 ton
2. Main Building Previous pile- 30 ton
3. Main Building Perimeter Parapets — 50 ton
Above quantities are estimates based on current visual observations, but billing will be based on actual tonnage
from landfill tickets as approved by Terracon. It is understood that further demolition could create collapse and
cause RACM material to mix with other debris and increase quantities significantly (potentially as much as 500 ton).
After discussing methodology with Rob Bergman and Brandon Zinser, we feel the best approach to removing the
materials that are hard to reach would be to mobilize our High Reach Demolition Excavator so as to better control
the process and attempt to segregate the materials in a manner that will minimize the amount of debris rather
than undermining walls and having the collapsed materials become mingled with RACM. I have included a line item
for mobilization, run time and de -mobilization of this machine as well.
1. High ReachMachine $ 15,000.00 - Lump Sum
D.W. ZINSER COMPANY
Demolition & Dismantling
Member National Demolition Association
1775 Commercial Drive, PO Box 398, Walford, Iowa 52351
Phone 319-846-8090 Fax 319-846-3351
Additionally, we would abate the lower west elevation roof by hand methods and dispose of the material properly.
The cost for this work would be $ 3,200.00 - Lump Sum
It is understood that should we encounter additional materials not previously identified as asbestos containing
material throughout the remainder of the demolition process, would add to the estimated quantities.
Respectfully,
David Zinser
President