DERR-2024-011597

195 North 1950 West
Mailing Address: P.O. Box 144840 Salt Lake City, UT 84114-4840
Telephone [phone] ) 359-8853 [phone]
www.deq.utah.gov
Printed on 100% recycled paper
State of Utah

SPENCER J. COX
Governor

DEIDRE HENDERSON
Lieutenant Governor
Department of
Environmental Quality

Kimberly D. Shelley
Executive Director

DIVISION OF ENVIRONMENTAL
RESPONSE AND REMEDIATION

Brent H. Everett
Director
ERRC-161-24

October 21, 2024

Tammi Messersmith, PE
Project Manager
AECOM
756 East Winchester Street, Suite 400
Salt Lake City, Utah 84107

RE: CERCLA Level of Effort Contract No. 206283 - Work Assignment 7
Jacobs Smelter Operable Unit 6: Remedial Investigation; Amendment 2

Dear Ms. Messersmith:

Enclosed for your review is an amended proposal for Work Assignment 7, which directs
AECOM, under the CERCLA Level of Effort (LOE) Contract, to design the Remedial Investigation
(RI) for the areas around the Chicago and Carson Buzzo Smelters located within Operable Unit 6
(OU6) of the Jacobs Smelter Superfund Site. Tasks 1, 2, and 3 of the Work Assignment remain
unchanged from the amended Scope of Work dated May 16, 2023. Tasks 4 and 5 of the Work
Assignment have been removed due to time constraints on LOE Contract #206283. Please provide
an updated cost estimate and schedule for the work described in this proposal.

If there are any questions regarding this request, please feel free to contact me at
[phone].

Sincerely,

Maureen Petit, Project Manager
Division of Environmental Response and Remediation

MP/lg

Enclosure(s): Amended Proposal for Work Assignment 7

1
Amended Work Assignment
Remedial Investigation for Jacobs Smelter Operable Unit 6

I. Work Objectives
The objective of this Scope of Work is to allow AECOM to design a Remedial Investigation that
addresses contamination associated with the Chicago and Carson Buzzo Smelters (OU6). This
design should include additional sampling activities to support a Human Health Risk Assessment
and Ecological Risk Assessment that evaluate exposure scenarios specific to the agricultural uses
at OU6.

The various tasks required to provide the support requested are outlined below.

II. Tasks

Task 1 - Project Management

AECOM will perform all project management activities required to effectively manage the project
and to keep the Division informed of project activities. Project Management costs should be no
greater than 10% of the total project cost in order to be consistent with EPA guidelines typically
used for this type of project. Project Management includes preparing monthly reports and
updating a comprehensive critical-path-method schedule for this Work Assignment. Project
Management includes the following subtasks:

Record Keeping - As specified in the LOE contract, the Contractor shall maintain all
technical and financial records such as:
o Management Review and Coordination
o Cost set-up and tracking
o Progress Meetings
o Document Management
o Budget and schedule
o Progress reports
o Preparation of invoices
Equipment Transfer - At the completion of the Work Assignment, the consultant shall
transfer to the DERR project manager all equipment purchased with contract funds in
accordance with the contract.
Work Assignment Closeout - At the completion of the work assignment, the consultant
shall perform all necessary closeout activities as specified in the LOE contract.

Task 2 - Community Involvement

AECOM shall provide community involvement support to DERR. Community Involvement shall
include the following activities:

Public Meeting Support - AECOM shall support and assist in public meetings and/or open
houses by preparing presentation materials and other support as needed.
Fact Sheet Support - AECOM shall provide relevant information, figures, and drawings to
DERR to prepare Fact Sheets as needed.

2
Task 3 - Existing Document Review, Summary, and Evaluation of Data to Develop Remedial
Investigation Work Plan and Supporting Documents.

AECOM will review existing site documents and evaluate what existing data is usable and
relevant. In particular, AECOM will review sampling data from the 2004 OU2 Remedial
Investigation Report, which included sampling of the Chicago and Carson Buzzo Smelters.
AECOM will summarize existing data and determine what data gaps exist.
Deliverables:
RI Work Plan
RI Sampling and Analysis Plan
Quality Assurance Project Plan (QAPP) to be approved by EPA and DERR
Field Health and Safety Plan