HomeMy WebLinkAbout2022-4062CARLSON
CONTRACT #2022-4062
April 18, 2022
City of Columbia Heights
590 40eh Avenue Northeast
Columbia Heights, Minnesota 55421
ENGINEERING 1 LAND SURVEYING \ ENVIRONMENTAL
Re: Agreement to Conduct Environmental Remediation
Former Root Property
To Whom it May Concern:
As you are aware, Carlson McCain, Inc. (Carlson McCain) has been assisting the City of Columbia
Heights (City) to address environmental concerns at the above referenced Site, in order to spur
redevelopment of the Property. This purpose of this Letter is to provide an Agreement by and between
the City and Carlson McCain to complete remediation, as outlined in the following Sections.
Scope of Work
In short, the following Tasks were/will be conducted to complete this Project:
* Prepared Specifications and solicited Bids from qualified demolition & excavation contractors.
• Environmental remediation of the Site was conducted in December of 2021.
• Implementation was conducted following the Minnesota Pollution Control Agency (MPCA)
approved Response Action Plan (RAP) prepared by Carlson McCain, with Veit Companies
providing demolition & excavation work and Carlson McCain providing oversight. In short,
remediation activities consisted of the following:
o Underground utilities were cleared prior to the start of work.
o Regulated & hazardous materials were removed from the buildings, prior to the start of
demolition.
a The three smaller buildings were demolished and the foundation of the main building
(which burned in 2010) was removed.
o Clearing and grubbing of trees & brush was conducted, as necessary.
o Excavation of known contaminated soils which exceeded MPCA Residential Screening
Limits was conducted, including approximately 644 tons (495 cubic yards) of non-
hazardous soil and approximately 22 tons (17 cubic yards) of hazardous soil.
o All materials were disposed of at approved landfills and recycling_ of clean concrete was
conducted, whenever possible.
o Not surprisingly (given the age, history and location of the Site), there were some newly
discovered subsurface issues identified, including buried bundles shingles (in several
1565036THAVENUE NORTH, SUITE 110, PLYMOUTH, MN 55446 \ TEL952.346.3900 \ FAX 952.346,3901 \ CARLSONMCCAIN.COM
Agreement to Conduct Environmental Remediation
Former Root Property
locations), a secondary concrete slab beneath one of the buildings, an area where dumping
had occurred (which included asbestos containing material or ACM) and twin 6,000
gallon underground storage tanks (USTs).
o Interim grading was conducted.
• Carlson McCain will be preparing a RAP Implementation Report and will be recommending the
MPCA issue a No Further Action Letter.
• Carlson McCain will continue working with the City and/or MPCA (i.e. meetings,
correspondence, etc.), as necessary.
Carlson McCain will also continue working with the City, Minnesota Department of Commerce
(MDC) and the MPCA to address removal, investigation and/or cleanup associated with the two
USTs; however, work, costs and schedule associated with this Task will be handled separate from
this Agreement.
Payment
As you are aware, Carlson McCain recently submitted invoices to the City, which covered planning and
oversight related to remediation (i.e. RAP Implementation, estimated cost of $14,250). Subsequently,
remaining invoices will be related to Preparing the RAP Implementation Report (estimated cost of $8,925)
and Project Management & MPCA liaison necessary until the No Further Action Determination Letter is
issued (estimated cost of $3,380). As a reminder, the MPCA VBP is a fee for service program, their staff
bill at $150/hour for their services and they will send their invoices directly to the City.
Schedule
Carlson McCain will soon begin preparing the RAP Implementation Report and once finalized, will be
submitted to the MPCA for review. Assuming the MPCA utilizes the full 60 days for review and agrees
with our Recommendations, the No Further Action Determination Letter will likely be issued sometime
in late summer of 2022.
Closing
We greatly appreciate the opportunity continue working with you and look forward to completing this
Project. In order to acknowledge this Agreement, please sign below and return a copy to me for our
records. If you have any questions or comments, please feel free send me an e-mail at
jcrowl@carlsonmccain.com or call me at (763) 489-7907. Thank you for your time and consideration.
Sincerely,
Carlson McCain, Inc. City of Columbia Heights
James B. Crowl III, P.G. Name, Tit d Date
Senior Hydrogeologist
Carlson McCain, Inc. Page 2
FINAL COMPENSATION CHANGE ORDER
Project: Environmental Remediation of 3930 University Ave
Owner: City of Columbia Heights
Date of Issuance: April 11, 2022
590401h Ave. NE
Columbia Heights, MN 55421
Contractor: Carlson McCain Inc.
Community Development Department
3890 Pheasant Ridge Dr. NE,
Suite:100, Blaine, MN 55449
You are directed to make the following changes In the contract documents:
Description: Change in original contract price for unexpected increase in scope of work
Item Description Total Price
Onsite supervising and directing, field screening, confirmatory
sampling, land surveying, backfill compaction sampling, and soil $10,495
vapor testing.
Purpose of Change Order: The contract has been modified to include the additional
sampling and screening that had to be conducted.
CHANGE IN CONTRACT PRICE
CHANGE IN CONTRACT TIME
Original Contract Price: $26,555
Original Contract Time:
Previous Change Orders No. _ to No. _
Net Change from Previous Change Order:
None
Contract Price Prior to the Change Order:
Contract Time Prior to This Change Order:
$26,555
Net Increase (Decrease) of this Change Order:
Net Increase (Decrease) of Change Order:
$10,495
Contract Price With all Approved Change Orders:
Contract Time with Approved Change Orders:
37,050
Reco ender.
Appr
By:
By:
Community DeOetiSppment Director
Carlson M fain, Inc.
�Qr17
City Manager, III Bourgeois Ma or, Amada Marquez Simula Date of Council Action