DERR-2025-004928

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Joseph Katz <[e-mail]>
RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky
Mountain Power (RMP) Power District Property
1 message
Wilson, DavidWilson <[e-mail]>Thu, Jan 9, 2025 at 12:12 PM
To: Joseph Katz <[e-mail]>, "Wetzel, Scott (PacifiCorp)" <[e-mail]>
Cc: Bill Rees <[e-mail]>, Jeff Tucker <[e-mail]>, "carl.duke" <[e-mail]>,
"[e-mail]" <[e-mail]>, "Stripeika, Curt" <[e-mail]>, "Jenson,
Mike (PacifiCorp)" <[e-mail]>
Thanks Joe, Carl and Scott – I will issue an invite for Tuesday, January 21, 2025 with a time from 1 to 2:30 PM.

Scott – This may be a bit tight for your 2:30 PM other commitment, but the window appears rather narrow – so hope this
works, and we understand if you need to step away a few minutes early.

Joe – Can you please set up a conference room where we can meet; I expect we’ll need room for 10-12 participants.
Appreciate everyone’s responses to schedule this meeting!

Regards,
Dave W.

David S. Wilson, P.E., P.G., Senior Principal Engineer | Tetra Tech
Business [phone] | Mobile [phone] | [e-mail]

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From: Joseph Katz <[e-mail]>
Sent: Wednesday, January 8, 2025 11:32 AM
To: Wetzel, Scott (PacifiCorp) <[e-mail]>
Cc: Bill Rees <[e-mail]>; Wilson, DavidWilson <[e-mail]>; Jeff Tucker
<[e-mail]>; carl.duke <[e-mail]>; [e-mail]; Stripeika, Curt
<[e-mail]>; Jenson, Mike (PacifiCorp) <[e-mail]>
Subject: Re: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power
District Property

7/3/25, 11:24 AM State of Utah Mail - RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1820542563294797897%7Cmsg-f:1820799759174560793…1/5
⚠ CAUTION: This email originated from an external sender. Verify the source before opening links or attachments.
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Hello Scott,

Thanks. It looks like Bill and I are available on 1/21 from 1:00 - 2:30 or from 3:00 - 4:30. On 1/22 and 1/23, we are
available most of the day except 9:00 - 10:00.

Please let me know what works best for you and I will find accommodations at the DEQ office building.

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Wed, Jan 8, 2025 at 11:17 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

I just noticed that you weren’t included in the original email on this meeting request for the Rocky Mountain Power
Redevelopment project with the LHM team. The details of proposed times are in the email chain below.

Thanks,

Scott
Scott Wetzel 801.220.2427 | 801.631.4572
7/3/25, 11:24 AM State of Utah Mail - RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1820542563294797897%7Cmsg-f:1820799759174560793…2/5
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Wetzel, Scott (PacifiCorp) <[e-mail]>
Sent: Tuesday, January 7, 2025 9:17 AM
To: Carl Duke <[e-mail]>; Wilson, DavidWilson <[e-mail]>; [e-mail];
Jenson, Mike (PacifiCorp) <[e-mail]>; Jeff Tucker <[e-mail]>
Cc: Matthew Blocker <[e-mail]>; Stripeika, Curt <[e-mail]>
Subject: RE: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power
District Property

At this point my calendar is open for during the times Carl has available below except for 2:30-3 on Tuesday 1/21. But if
that time works best for everyone else I can move that meeting. Also including Jeff Tucker in this discussion for a
meeting.

Thanks,

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116
7/3/25, 11:24 AM State of Utah Mail - RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1820542563294797897%7Cmsg-f:1820799759174560793…3/5

From: Carl Duke <[e-mail]>
Sent: Monday, January 6, 2025 3:58 PM
To: Wilson, DavidWilson <[e-mail]>; [e-mail]; Jenson, Mike (PacifiCorp)
<[e-mail]>; Wetzel, Scott (PacifiCorp) <[e-mail]>
Cc: Matthew Blocker <[e-mail]>; Stripeika, Curt <[e-mail]>
Subject: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power District
Property

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Thank you Bill for your willingness to meet with us.

I am available Tuesday morning before 9:30 and after 11:00, I can move most of my appointments on Thursday the
23rd. I am not available on the 22nd.

Best,

From: "Wilson, DavidWilson" <[e-mail]>
Date: Monday, January 6, 2025 at 3:54 PM
To: Bill Reese <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>,
"Wetzel, Scott (PacifiCorp)" <[e-mail]>
Cc: Carl Duke <[e-mail]>, Matthew Blocker <[e-mail]>,
"Stripeika, Curt" <[e-mail]>
Subject: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power
District Property

Hello Bill, Mike and Scott – Happy New Year!

Carl Duke of Larry H. Miller Real Estate (LHM) has asked that Tetra Tech coordinate a meeting between the Utah
DEQ/DERR, RMP, and LHM/Tetra Tech to discuss LHM’s plans for the RMP property within the greater Power District
project. A key element of these plans will be LHM’s assumption of responsibility to conduct the Voluntary Cleanup
7/3/25, 11:24 AM State of Utah Mail - RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1820542563294797897%7Cmsg-f:1820799759174560793…4/5
Program (VCP) initiated by RMP for its property during the coming years. We would like to bring appropriate
representatives together from each organization during the week of January 20, 2025 if it works for everyone.

Can you please “reply to all” to confirm your availability for a meeting on one or more of these dates/times; and please
recommend preferred times (if any). We propose to make this an in-person meeting at the Utah DERR Office if Bill can
set up a room where we can meet (assume 1.5 hours).

Tuesday, Jan. 21 – Morning
Wednesday, Jan. 22 – Anytime
Thursday, Jan. 23 – Anytime

I ask Carl and Matt to compare calendars and provide similar input on their preferred dates with a “reply to all.” We will
defer particularly Bill and his team based on when they can host the meeting at DERR’s office.

Thanks for your responses!
Dave W.

David S. Wilson, P.E., P.G. | Senior Principal Engineer
Business [phone] | Mobile [phone] | [e-mail]
Time Zone: Mountain

Tetra Tech | Leading with Science®
4750 West 2100 South, Suite 400 | Salt Lake City, Utah 84120 | tetratech.com

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7/3/25, 11:24 AM State of Utah Mail - RE: FW: [INTERNET] Re: Meeting to Discuss LHM Approach for VCP at Rocky Mountain Power (RMP) Power …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1820542563294797897%7Cmsg-f:1820799759174560793…5/5
Joseph Katz <[e-mail]>
Re: Rocky Mountain Power - North Temple Redevelopment - Revised Arsenic and
Lead Risk Evaluation - VCP Area A
1 message
Scott Everett <[e-mail]>Thu, Feb 6, 2025 at 9:16 AM
To: Joseph Katz <[e-mail]>
I think we're good.
On Tue, Feb 4, 2025 at 11:46 AM Joseph Katz <[e-mail]> wrote:
Hello Scott,
I have completed review of the Rocky Mountain Power Revised Risk Evaluation (see below). I did not have any
comments. I just wanted to confirm that you have looked at it and did not have any comments either. I believe you
worked on this with them over the holidays and I think you mentioned that you did not have any additional concerns but
I wanted to double check.
Thanks,
Joe
---------- Forwarded message ---------
From: Wetzel, Scott (PacifiCorp) <[e-mail]>
Date: Mon, Dec 30, 2024 at 9:38 AM
Subject: Rocky Mountain Power - North Temple Redevelopment - Revised Arsenic and Lead Risk Evaluation - VCP
Area A
To: Scott Everett <[e-mail]>, Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>
Hi Scott and Joe,

Attached is the revised arsenic and lead risk evaluation document we discussed, as well as the new figure and revised
input/output information for the calculated EPCs. Please let me or Dan know if you have any questions as you review
these documents.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
7/3/25, 11:24 AM State of Utah Mail - Re: Rocky Mountain Power - North Temple Redevelopment - Revised Arsenic and Lead Risk Evaluation - VCP …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1819884090011408219%7Cmsg-f:1823325417130548048&…1/2
1407 W North Temple, Salt Lake City, UT 84116

--
Scott Everett
Toxicologist | DERR
M: [phone]
P: [phone]
Please note my new phone number
environmentalresponse.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
7/3/25, 11:24 AM State of Utah Mail - Re: Rocky Mountain Power - North Temple Redevelopment - Revised Arsenic and Lead Risk Evaluation - VCP …
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1819884090011408219%7Cmsg-f:1823325417130548048&…2/2
Joseph Katz <[e-mail]>
RE: [INTERNET] Re: VCP Area RAP(s) question
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Mon, Mar 3, 2025 at 5:36 PM
To: Joseph Katz <[e-mail]>
Cc: "Jenson, Mike (PacifiCorp)" <[e-mail]>
Thanks Joe,

We’re nearing having the draft work plan ready to send to you. We are also updating the legal description of
the VCP Areas. If we get the draft work plan completed before the legal descriptions, should we send the
draft work plan to you to start the review prior to having the legal descriptions of the areas submitted? Also,
do you need a drawing with the new Areas, or just the legal description?

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Thursday, February 27, 2025 5:54 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
7/3/25, 11:25 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1825621759027360215…1/3
Cc: Jenson, Mike (PacifiCorp) <[e-mail]>
Subject: [INTERNET] Re: VCP Area RAP(s) queson

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Hello Scott,

Glad to hear things are coming together. I believed we did discuss this somewhat during our meeting a few weeks back.
I am assuming the enlargement of Area B is to accommodate utility access that will support development in Area B. Is
that correct? A single characterization plan and report for Area B makes a lot of sense to me, so no concerns there.

In terms of your questions about two risk assessments and RAPs for the same area, I am not sure we have ever had to
address this scenario before under the VCP. While the rationale for doing this is very clear, I can anticipate some
objections on our end about the potential for confusion with two RAPs covering the same area, particularly in the public
arena during public comment. If the documents are very clear and deliberate about the boundaries they cover, I think we
could work through this, but I will bring this up with Bill when he gets back next week to make sure I am not missing
anything. I will get back with you after I speak with Bill.

Thanks,

Joe

My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Tue, Feb 25, 2025 at 11:52 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

We’re nearing having the Site Characterization Work Plan finalized with the new legal description of the boundary that
we will be investigating. A question has come up that I think we discussed but I wanted to get confirmation from you.
7/3/25, 11:25 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1825621759027360215…2/3

Currently in our VCA we have VCP Area A, Area B, Area C, and Area D. We are going to keep the same footprint, but
slightly enlarge Area B, which will require us to slightly reduce Area C and Area D.

Area B will be the focus of the Site Characterization Work Plan and the next phase of investigation. Area B will include
the new RMP headquarters area as well as a development area for LHM. Once the Site Characterization Work Plan is
approved we plan to conduct a single investigation (rather than an RMP investigation and a LHM investigation) and
develop one (1) Site Characterization Report.

Here’s my question: once the Site Characterization Work plan is complete and accepted by DEQ/DERR, RMP will do a
risk assessment and develop a RAP for the intended use of the property we will develop (likely commercial due to it
being an office building space); and LHM will do a risk assessment and develop a RAP for the intended use of the
property they will develop (likely residential). Is it acceptable to have the two different risk assessments/RAPs for the
two different areas/land uses within the same VCP Area (B)?

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:25 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1825621759027360215…3/3
Joseph Katz <[e-mail]>
Draft VCP Area B Work Plan
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Mon, Mar 10, 2025 at 3:20 PM
To: Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>, Jeff Tucker <[e-mail]>, "Claude Dahlk - Hill West
Environmental ([e-mail])" <[e-mail]>, "Wilson, DavidWilson"
<[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>
Hi Joe,

Here is the draft work plan for the next phase (Area B) of investigation at the North Temple Redevelopment site. We are
working on updated legal descriptions of the adjacent VCP Areas (Areas C and D) and will send those to you, along with
the legal description for Area B, to amend those areas in the VCA.

Thank you,

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

VCP 119 Area B Work Plan DERR Draft 03 10 2025.pdf
16903K
7/3/25, 11:26 AM State of Utah Mail - Draft VCP Area B Work Plan
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1826243634584369015%7Cmsg-f:1826243634584369015…1/1
Joseph Katz <[e-mail]>
RE: [INTERNET] Re: Draft VCP Area B Work Plan
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Fri, Mar 14, 2025 at 9:05 AM
To: Joseph Katz <[e-mail]>
Thanks Joe,

Any thoughts on the need for an official site map to go along with the updated VCP areas? Or do you just
need the legal description of the updated boundaries? When it’s reviewed and ready to go, should I send
the new legal descriptions (and site map if needed) in an official request to you to modify the VCA?

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Wednesday, March 12, 2025 5:43 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Subject: [INTERNET] Re: Dra VCP Area B Work Plan

7/3/25, 11:27 AM State of Utah Mail - RE: [INTERNET] Re: Draft VCP Area B Work Plan
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1826243634584369015%7Cmsg-f:1826582384893042370…1/3
THIS MESSAGE IS FROM AN EXTERNAL SENDER.
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Hello Scott,

I have received the work plan and will start working on reviewing it. I am still working to get a perspective on the
questions about two RAPs for the same area question.

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Mon, Mar 10, 2025 at 3:20 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

Here is the draft work plan for the next phase (Area B) of investigation at the North Temple Redevelopment site. We
are working on updated legal descriptions of the adjacent VCP Areas (Areas C and D) and will send those to you, along
with the legal description for Area B, to amend those areas in the VCA.

Thank you,

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
801.220.2427 | 801.631.4572
7/3/25, 11:27 AM State of Utah Mail - RE: [INTERNET] Re: Draft VCP Area B Work Plan
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1826243634584369015%7Cmsg-f:1826582384893042370…2/3
RMP Environmental Services | PacifiCorp
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:27 AM State of Utah Mail - RE: [INTERNET] Re: Draft VCP Area B Work Plan
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1826243634584369015%7Cmsg-f:1826582384893042370…3/3
Joseph Katz <[e-mail]>
FW: draft language/outline for Rocky Mountain Power Redevelopment RAP
amendment
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Wed, Mar 26, 2025 at 2:34 PM
To: Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West Environmental ([e-mail])"
<[e-mail]>, Jeff Tucker <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>
Hi Joe,

I don’t remember seeing an update on this one, if so I’m sorry. If not, I just wanted to get this back on your radar. This is
draft language that we had proposed to use regarding the Jordan River and include as an addendum to the VCP Area A
RAP. If acceptable, we would also use this language to finalize the Jordan River Sediment report.

I know we’ve put a few things on your plate right now, so from my perspective I don’t want this to take priority over your
review of the Area B work plan review.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:28 AM State of Utah Mail - FW: draft language/outline for Rocky Mountain Power Redevelopment RAP amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1802327454107155440%7Cmsg-f:1827690295250141161&…1/3
From: Wetzel, Scott (PacifiCorp)
Sent: Wednesday, June 19, 2024 3:43 PM
To: Joseph Katz <[e-mail]>
Subject: FW: draft language/outline for Rocky Mountain Power Redevelopment RAP amendment

Hi Joe,

Here is the draft language we discussed in our meeting today. More emails to follow.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Wetzel, Scott (PacifiCorp)
Sent: Thursday, April 11, 2024 11:53 AM
To: Chris Howell <[e-mail]>
Cc: Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail])
<[e-mail]>; Jeff Tucker <[e-mail]>
Subject: draft language/outline for Rocky Mountain Power Redevelopment RAP amendment

Hi Chris,

Attached for your review is a draft outline of the items we discussed for inclusion in a RAP amendment. Thanks for
reviewing and providing feedback. Any questions please let me/us know.
7/3/25, 11:28 AM State of Utah Mail - FW: draft language/outline for Rocky Mountain Power Redevelopment RAP amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1802327454107155440%7Cmsg-f:1827690295250141161&…2/3

Thanks,

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

2 attachments
Draft Language for the Addendum to the VCP Area A RAP,ver2.docx
26K
f1_Area A - ROC-Layout1.pdf
1636K
7/3/25, 11:28 AM State of Utah Mail - FW: draft language/outline for Rocky Mountain Power Redevelopment RAP amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1802327454107155440%7Cmsg-f:1827690295250141161&…3/3
Joseph Katz <[e-mail]>
RE: [INTERNET] Area B Site Visit
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Tue, Apr 1, 2025 at 4:53 PM
To: Joseph Katz <[e-mail]>
Cc: Jeff Tucker <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>
Joe,

Wednesday (4/9) works for us. Let’s plan on 11:00.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Tuesday, April 1, 2025 2:48 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Jeff Tucker <[e-mail]>; Jenson, Mike (PacifiCorp) <[e-mail]>
Subject: Re: [INTERNET] Area B Site Visit

7/3/25, 11:29 AM State of Utah Mail - RE: [INTERNET] Area B Site Visit
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r1279004493170586671%7Cmsg-f:1828242603356211202…1/5
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Hello Scott,

It looks like next Wednesday (9th) between 11:00 - 2:00 would be our first choice. Tuesday (8th) after 11:00 would be our
second choice. Do either of these work for you?

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Mon, Mar 31, 2025 at 5:36 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

That’s not a problem. Friday won’t work for us, let’s try for next week. Tuesday or Wednesday would be
best for us.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
7/3/25, 11:29 AM State of Utah Mail - RE: [INTERNET] Area B Site Visit
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r1279004493170586671%7Cmsg-f:1828242603356211202…2/5
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Monday, March 31, 2025 5:26 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Subject: Re: [INTERNET] Area B Site Visit

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Hello Scott,

Thanks for getting back to me. Bill has asked to attend the site visit but is not available tomorrow afternoon so I will
need to reschedule. Is this Friday an option for you and Jeff or should we look at dates next week?

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
7/3/25, 11:29 AM State of Utah Mail - RE: [INTERNET] Area B Site Visit
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r1279004493170586671%7Cmsg-f:1828242603356211202…3/5

On Mon, Mar 31, 2025 at 10:23 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

Tuesday (tomorrow) afternoon works for me and Jeff. What time would you like to meet?

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Sunday, March 30, 2025 10:56 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Subject: [INTERNET] Area B Site Visit

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Hello Scott,

Just wondering if you have any time over the next week or two to do a site visit to the Area B area. This will facilitate
the review of the characterization work plan and the generation of comments, if any.
7/3/25, 11:29 AM State of Utah Mail - RE: [INTERNET] Area B Site Visit
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r1279004493170586671%7Cmsg-f:1828242603356211202…4/5

I am available Tuesday PM and Friday after 11:30 this week. Next week I am pretty open.

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
7/3/25, 11:29 AM State of Utah Mail - RE: [INTERNET] Area B Site Visit
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r1279004493170586671%7Cmsg-f:1828242603356211202…5/5
Joseph Katz <[e-mail]>
RE: [INTERNET] Re: VCP Area RAP(s) question
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Fri, Apr 4, 2025 at 5:15 PM
To: Joseph Katz <[e-mail]>
Cc: "Jenson, Mike (PacifiCorp)" <[e-mail]>
Sounds great, thanks Joe!

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Friday, April 4, 2025 5:14 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Jenson, Mike (PacifiCorp) <[e-mail]>
Subject: Re: [INTERNET] Re: VCP Area RAP(s) queson

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Hello Scott,
7/3/25, 11:30 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1828515801724109332…1/5

Sorry for the delay on this. I have not gotten a straight answer, but we are going to discuss this next week and hopefully
have an answer at the site visit. A preference to have a single RAP was expressed, but this is not the final decision just
so you are aware.

Looking forward to the site visit. We will make sure to bring our PPE.

Thanks,

Joe

My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Wed, Apr 2, 2025 at 4:51 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

As we’re preparing the application and letter to add the LHM Group to the VCA it would be helpful to know
the status of the question below regarding multiple RAPs in the same VCP area (one RAP for Pac/RMP
and one for the LHM Group).

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
801.220.2427 | 801.631.4572
[e-mail]
7/3/25, 11:30 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1828515801724109332…2/5
RMP Environmental Services | PacifiCorp
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Thursday, February 27, 2025 5:54 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Jenson, Mike (PacifiCorp) <[e-mail]>
Subject: [INTERNET] Re: VCP Area RAP(s) queson

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Hello Scott,

Glad to hear things are coming together. I believed we did discuss this somewhat during our meeting a few weeks
back. I am assuming the enlargement of Area B is to accommodate utility access that will support development in Area
B. Is that correct? A single characterization plan and report for Area B makes a lot of sense to me, so no concerns
there.

In terms of your questions about two risk assessments and RAPs for the same area, I am not sure we have ever had to
address this scenario before under the VCP. While the rationale for doing this is very clear, I can anticipate some
objections on our end about the potential for confusion with two RAPs covering the same area, particularly in the public
arena during public comment. If the documents are very clear and deliberate about the boundaries they cover, I think
we could work through this, but I will bring this up with Bill when he gets back next week to make sure I am not missing
anything. I will get back with you after I speak with Bill.

Thanks,

Joe

My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
7/3/25, 11:30 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1828515801724109332…3/5
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Tue, Feb 25, 2025 at 11:52 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

We’re nearing having the Site Characterization Work Plan finalized with the new legal description of the boundary
that we will be investigating. A question has come up that I think we discussed but I wanted to get confirmation from
you.

Currently in our VCA we have VCP Area A, Area B, Area C, and Area D. We are going to keep the same footprint,
but slightly enlarge Area B, which will require us to slightly reduce Area C and Area D.

Area B will be the focus of the Site Characterization Work Plan and the next phase of investigation. Area B will
include the new RMP headquarters area as well as a development area for LHM. Once the Site Characterization
Work Plan is approved we plan to conduct a single investigation (rather than an RMP investigation and a LHM
investigation) and develop one (1) Site Characterization Report.

Here’s my question: once the Site Characterization Work plan is complete and accepted by DEQ/DERR, RMP will
do a risk assessment and develop a RAP for the intended use of the property we will develop (likely commercial due
to it being an office building space); and LHM will do a risk assessment and develop a RAP for the intended use of
the property they will develop (likely residential). Is it acceptable to have the two different risk assessments/RAPs for
the two different areas/land uses within the same VCP Area (B)?

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
7/3/25, 11:30 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1828515801724109332…4/5
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:30 AM State of Utah Mail - RE: [INTERNET] Re: VCP Area RAP(s) question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1825056553634163384%7Cmsg-f:1828515801724109332…5/5
Joseph Katz <[e-mail]>
Fw: [INTERNET] Final Area B Work Plan
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Thu, Apr 10, 2025 at 8:52 PM
To: Joseph Katz <[e-mail]>, Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West
Environmental ([e-mail])" <[e-mail]>, Jeff Tucker <[e-mail]>
Hi Joe,
Here are the changes we made to the work plan after our site walk and discussion yesterday. We can use this for our
discussion on Monday.
Thanks,
Scott
2 attachments
Area B Work Plan, revised 04 10 2025.docx
462K
f4_PropShallowBorLoc_r11-Paper.pdf
1999K
7/3/25, 11:31 AM State of Utah Mail - Fw: [INTERNET] Final Area B Work Plan
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829073033227051217%7Cmsg-f:1829073033227051217…1/1
Joseph Katz <[e-mail]>
North Temple Redevelopment VCP Area B Work Plan - revised
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Thu, Apr 17, 2025 at 3:53 PM
To: Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West Environmental ([e-mail])"
<[e-mail]>, Jeff Tucker <[e-mail]>
Hi Joe,

Here is the updated work plan that includes items discussed last week at the Area B site walk as well as our
phone call earlier this week. A redlined version is included as well.

FYI, and I believe we discussed this last week at the site walk, we are currently scheduled with a driller to
do the investigation the week of May 19-23. Depending on when this plan is approved, we may try to move
those dates up a week or two. We’ll keep you posted on that.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

2 attachments
7/3/25, 11:31 AM State of Utah Mail - North Temple Redevelopment VCP Area B Work Plan - revised
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829688360478499182%7Cmsg-f:1829688360478499182…1/2
VCP 119 Area B Work Plan, Final 04 16 2025 - redline.docx
447K
VCP 119 Area B Work Plan, Final 04 16 2025_Opt.pdf
7182K
7/3/25, 11:31 AM State of Utah Mail - North Temple Redevelopment VCP Area B Work Plan - revised
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829688360478499182%7Cmsg-f:1829688360478499182…2/2
Joseph Katz <[e-mail]>
Re: PFAS Question
1 message
Scott Everett <[e-mail]>Fri, Apr 18, 2025 at 1:41 PM
To: Joseph Katz <[e-mail]>
Hello Joe,
Given that no landfill material has been encountered, it's possible that PFAS chemicals
may not be present in the soil. While the screening levels for these chemicals are very
low, any findings could be hard to definitively link as the source of PFAS in the
groundwater.
It would be helpful to know the proposed sampling locations and what will happen to the
soil. Will they be sampling in areas slated for excavation, under hardscapes, or in
landscaping zones?
I'm okay with foregoing soil sampling unless there's reason to believe the soil is the
primary source of the groundwater contamination. I'm available to discuss this further at
your convenience.
Thanks,
Scott
On Thu, Apr 17, 2025 at 4:09 PM Joseph Katz <[e-mail]> wrote:
Hello Scott,
Rocky Mountain Power (RMP) is preparing a SAP to characterize the property for their new headquarters. The
property is within the larger South Temple Landfill CERCLIS site although prior investigations have not encountered
landfill contents on this specific property. We have previously provided them feedback to sample for PFAS due to the
historic landfill and the low-level detections of PFAS in groundwater on the eastern portion of the RMP campus.
They have proposed to sample groundwater for PFAS but not soil. Do you recommend sampling soils for PFAS at old
landfills or is it preferable to have the groundwater data guide future soil sampling efforts if the groundwater shows a
PFAS problem? The entire property has been used as a storage yard during RMP's ownership so there are no specific
release points to target with the sampling (e.g. no drains, sumps, processing areas, etc.).
Thanks,
Joe
7/3/25, 11:32 AM State of Utah Mail - Re: PFAS Question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r6421689426607238325%7Cmsg-f:182977067464814140…1/2
--
Scott Everett
Toxicologist | DERR
M: [phone]
P: [phone]
Please note my new phone number
environmentalresponse.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
7/3/25, 11:32 AM State of Utah Mail - Re: PFAS Question
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r6421689426607238325%7Cmsg-f:182977067464814140…2/2
Joseph Katz <[e-mail]>
RE: [INTERNET] Re: North Temple Redevelopment VCP Area B Work Plan - revised
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Tue, Apr 29, 2025 at 3:51 PM
To: Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West Environmental ([e-mail])"
<[e-mail]>, Jeff Tucker <[e-mail]>
Thank you Joe,

We will proceed with plans for the field work. I’ll let you know if there is any change in schedule.

Additionally, I should have the request for adding the LHM Group to the VCA as well as the legal description
of the VCP Areas ready to send to you tomorrow.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Tuesday, April 29, 2025 1:44 PM
7/3/25, 11:32 AM State of Utah Mail - RE: [INTERNET] Re: North Temple Redevelopment VCP Area B Work Plan - revised
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829688360478499182%7Cmsg-f:1830775386665231648…1/3
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental
([e-mail]) <[e-mail]>; Jeff Tucker <[e-mail]>
Subject: [INTERNET] Re: North Temple Redevelopment VCP Area B Work Plan - revised

THIS MESSAGE IS FROM AN EXTERNAL SENDER.
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Hello Scott,

I have reviewed the revised work plan for Area B. Thank you for addressing the comments. I do not have any additional
feedback at this time.

Closing the door on some of the discussions during the call to discuss this work plan:
After reviewing the UST file, I do not believe there is a need to adjust any of the sampling locations proposed near
the former UST area.
DERR will not be requesting PFAS sampling of soils at this time. DERR would prefer to evaluate the groundwater
results to determine if PFAS is a potential concern and where potential source areas are, if any, before determining
the need for soil sampling for PFAS.
I believe field work was originally slated for the week of May 19. If you would like to move it forward, that would be fine,
just let me know the proposed schedule.

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Thu, Apr 17, 2025 at 3:53 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

7/3/25, 11:32 AM State of Utah Mail - RE: [INTERNET] Re: North Temple Redevelopment VCP Area B Work Plan - revised
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829688360478499182%7Cmsg-f:1830775386665231648…2/3
Here is the updated work plan that includes items discussed last week at the Area B site walk as well as
our phone call earlier this week. A redlined version is included as well.

FYI, and I believe we discussed this last week at the site walk, we are currently scheduled with a driller to
do the investigation the week of May 19-23. Depending on when this plan is approved, we may try to
move those dates up a week or two. We’ll keep you posted on that.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:32 AM State of Utah Mail - RE: [INTERNET] Re: North Temple Redevelopment VCP Area B Work Plan - revised
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1829688360478499182%7Cmsg-f:1830775386665231648…3/3
Joseph Katz <[e-mail]>
Legal descriptions
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Wed, Apr 30, 2025 at 11:29 AM
To: "[e-mail]" <[e-mail]>
Hi Joe,
I ended up being out of the office today heading down to St. George to pick up my daughter from school. I told you I'd
send some information for the North Temple Redevelopment project, so I'll send the documents individually today and I
will combine these (and the co-applicant letter and form) into a single PDF when I'm back in the office and get that over to
you. Here are the written legal descriptions. I'll send you the co-applicant letter and form in another email.
Thanks,
Scott
3 attachments
VCP AREA D Legal Description.docx
14K
VCP AREA C Legal Description.docx
14K
Legal Description for the RMP HQ VCP Area.docx
6750K
7/3/25, 11:33 AM State of Utah Mail - Legal descriptions
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1830849538581850450%7Cmsg-f:1830849538581850450…1/1
Joseph Katz <[e-mail]>
RMP VCP Co-applicant letter
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Wed, Apr 30, 2025 at 11:31 AM
To: "[e-mail]" <[e-mail]>
Hi Joe,
Here is the RMP co-applicant letter. I will send the co-applicant form in a separate email.
Thanks,
Scott

VCP co-applicant letter_final 4.29.pdf
115K
7/3/25, 11:34 AM State of Utah Mail - RMP VCP Co-applicant letter
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1830849683616225080%7Cmsg-f:1830849683616225080…1/1
Joseph Katz <[e-mail]>
RMP LHM VCP Co-applicant letter
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Wed, Apr 30, 2025 at 11:36 AM
To: "[e-mail]" <[e-mail]>
Hi Joe,
Here is the RMP LHM additional applicant form and a site map (from the Work Plan).
Thanks,
Scott
2 attachments
VCP 119 Areas_2025.pdf
580K
RMP HQ VCP coapplicant - signed.pdf
469K
7/3/25, 11:34 AM State of Utah Mail - RMP LHM VCP Co-applicant letter
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1830849978124194190%7Cmsg-f:1830849978124194190…1/1
Joseph Katz <[e-mail]>
Power District VCA - LHM Group Applicant and Area Re-designations
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Fri, May 2, 2025 at 4:23 PM
To: Joseph Katz <[e-mail]>
Cc: Bill Rees <[e-mail]>, Carl Duke <[e-mail]>, "Jenson, Mike (PacifiCorp)"
<[e-mail]>
Hi Joe,

Attached are the combined files I sent earlier this week that contain the letter and application to add the
LHM Group to the Power District Voluntary Cleanup Agreement as well as the revised legal descriptions of
the VCP Areas.

The current plan is to begin the Area B investigation on May 19th. In preparation for a transmission line
project south of South Temple, we will be investigating a few proposed locations for transmission line
foundations on the 15th and 16th. There is a chance that the drillers are done early and are available on the
16th to begin the coal ash investigation (road and pipeline bedding material) along South Temple.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:35 AM State of Utah Mail - Power District VCA - LHM Group Applicant and Area Re-designations
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1831049242582101241%7Cmsg-f:1831049242582101241…1/2
Power District VCA - LHM Group Applicant and Area Re-designations.pdf
1177K
7/3/25, 11:35 AM State of Utah Mail - Power District VCA - LHM Group Applicant and Area Re-designations
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1831049242582101241%7Cmsg-f:1831049242582101241…2/2
Joseph Katz <[e-mail]>
RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement
Amendment
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Thu, May 29, 2025 at 1:24 PM
To: Joseph Katz <[e-mail]>, "[e-mail]" <[e-mail]>
Cc: Bill Rees <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>, "Finley, Elizabeth
(PacifiCorp)" <[e-mail]>
Thanks Joe,

We are still reviewing the draft but have a few initial comments/questions, included in the attached Draft.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Friday, May 23, 2025 4:13 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>; [e-mail]
Cc: Bill Rees <[e-mail]>
Subject: [INTERNET] RMP Power District - Dra Voluntary Cleanup Agreement Amendment
7/3/25, 11:35 AM State of Utah Mail - RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement Amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r5427101225980510325%7Cmsg-f:1833484051991365116…1/2

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Hello Scott and Carl,

Please see the attached draft of the First Amendment to the Voluntary Cleanup Agreement for the Rocky Mountain Power
- Power District Redevelopment VCP project. This amendment adds LHM as a co-applicant and adjusts the legal
descriptions of Areas A - D. Please review and let me know if you have any questions or comments. This will still need to
undergo management review here but we want to take into account any feedback you have before proceeding.

Thanks and enjoy the Memorial Day weekend,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
PacifiCorp 119 VCA Ammendment_fsw.pdf
1310K
7/3/25, 11:35 AM State of Utah Mail - RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement Amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r5427101225980510325%7Cmsg-f:1833484051991365116…2/2
Joseph Katz <[e-mail]>
RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement
Amendment
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Mon, Jun 9, 2025 at 3:30 PM
To: Joseph Katz <[e-mail]>, "[e-mail]" <[e-mail]>
Cc: Bill Rees <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>, "Finley, Elizabeth
(PacifiCorp)" <[e-mail]>, "[e-mail]" <[e-mail]>
Hi Joe,

I confirmed the deletion of a sentence in Area D legal description, attached in this draft Amendment version.
There is also one additional comment regarding the working relationships covered in Section B.1.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Wetzel, Sco (PacifiCorp) <[e-mail]>
Sent: Thursday, May 29, 2025 1:24 PM
To: Joseph Katz <[e-mail]>; [e-mail]
Cc: Bill Rees <[e-mail]>; Jenson, Mike (PacifiCorp) <[e-mail]>; Finley, Elizabeth
7/3/25, 11:36 AM State of Utah Mail - RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement Amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r5427101225980510325%7Cmsg-f:183448858949994942…1/3
(PacifiCorp) <[e-mail]>
Subject: RE: [INTERNET] RMP Power District - Dra Voluntary Cleanup Agreement Amendment

Thanks Joe,

We are still reviewing the draft but have a few initial comments/questions, included in the attached Draft.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Friday, May 23, 2025 4:13 PM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>; [e-mail]
Cc: Bill Rees <[e-mail]>
Subject: [INTERNET] RMP Power District - Dra Voluntary Cleanup Agreement Amendment

THIS MESSAGE IS FROM AN EXTERNAL SENDER.
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Hello Scott and Carl,

7/3/25, 11:36 AM State of Utah Mail - RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement Amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r5427101225980510325%7Cmsg-f:183448858949994942…2/3
Please see the attached draft of the First Amendment to the Voluntary Cleanup Agreement for the Rocky Mountain Power
- Power District Redevelopment VCP project. This amendment adds LHM as a co-applicant and adjusts the legal
descriptions of Areas A - D. Please review and let me know if you have any questions or comments. This will still need to
undergo management review here but we want to take into account any feedback you have before proceeding.

Thanks and enjoy the Memorial Day weekend,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.
PacifiCorp 119 VCA Ammendment_fsw_2.pdf
1317K
7/3/25, 11:36 AM State of Utah Mail - RE: [INTERNET] RMP Power District - Draft Voluntary Cleanup Agreement Amendment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-a:r5427101225980510325%7Cmsg-f:183448858949994942…3/3
Joseph Katz <[e-mail]>
Acceptance Letter - Rocky Mountain Power - Power District Redevelopment
1 message
Jennifer Nelson <[e-mail]>Wed, Jun 11, 2025 at 10:51 AM
To: [e-mail], Ronald Lund <[e-mail]>, [e-mail]
Cc: Joseph Katz <[e-mail]>
Good morning,
Please see the attached letter.
Best,
Jennifer
Jennifer Nelson (she/her)
Branch Secretary | Records Officer
P: [phone]
F: [phone]
environmentalresponse.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
ERRC-136-25 Letter.pdf
127K
7/3/25, 11:37 AM State of Utah Mail - Acceptance Letter - Rocky Mountain Power - Power District Redevelopment
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1834652232627186565%7Cmsg-f:1834652232627186565…1/1
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe
Joseph Katz <[e-mail]>
Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, Power District Redevelopment Project,
VCP Area B
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Tue, Jun 24, 2025 at 5:05 PM
To: Bill Rees <[e-mail]>, Joseph Katz <[e-mail]>
Cc: Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West Environmental ([e-mail])" <[e-mail]>, Jeff Tucker <[e-mail]>,
"Wilson, DavidWilson" <[e-mail]>, Carl Duke <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>
Hi Bill and Joe,

Thanks again for your expedited and thorough review of the proposed additional sampling locations, groundwater well locations, and next steps. Reponses to your
comments are included in red below, and an updated map and table are attached. As mentioned last week, the driller had to move our schedule and the investigation
and well installation is currently scheduled for the week of June 30th.

Thanks!

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Bill Rees <[e-mail]>
Sent: Thursday, June 19, 2025 7:58 AM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Joseph Katz <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail]) <[e-mail]>;
Jeff Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>
Subject: Re: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

Scott,

We have reviewed the email and data tables. Thank you for proposing additional samples to maximize characterization. Our comments follow:

1. The email contains preliminary data tables. We have not received/reviewed the complete lab data packages. If QC or transcription issues are encountered, additional sampling or other
adjustments to project work may be necessary. Understood.
2. Please revise the letter workplan to indicate that all future sampling will be conducted in accordance with the SAP/QAPP. Sampling was completed consistent with the SAP/QAPP. Please
ensure all detection limits are below screening levels to avoid potential QC Sensitivity issues. The correct analytical method was selected, matrix interference can cause elevated reporting
limits, as was observed for several SVOCs.

3. In Table 3, it appears that the RSL screening level is for benzo (e) pyrene, not benzo (a) pyrene. This changes the data review as there are now exceedances of both the residential and
commercial RSL. Please revise and propose sampling. An updated Table 3 is attached. Addition of SVOCs to the proposed analyses has been added, as well as two additional borings near
AB-43. The following table has been updated to reflect the additional analyses and borings, and the attached figure includes the two additional borings.
7/3/25, 11:38 AM State of Utah Mail - Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, Power District Redevelo…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1835853522979172286…1/3

4. AB-42 - AB-44 contained elevated petroleum compounds, but sampling is only proposed around AB-44. Please provide a rationale for this proposal and indicate why additional samples
are not proposed to delineate the elevated concentrations. Two additional borings near B-43 have been added to address benzo(a)pyrene above the Industrial RSL in surface soil and at 4
to 5 feet bgs. AB-42 is in an asphalted area. The reported surface soil contamination and will be removed with the demolition and recycling of the asphalt and is in a commercial land use
area.

5. AB-21 - Please note that there is uncertainty under the road east of this location. Samples may not be collected during this phase of investigation due to utilities, but a materials
management strategy will be needed as part of the RAP, utility work and redevelopment. A MMP has been developed and approved by DERR for the Power District Development Project as
a whole. Area B would fall under that plan.

6. While not expected during this phase, future sampling should consider methane since this site could be part of a former landfill. Soil gas samples will be collected within Area B to
assess methane for potential vapor intrusion. Four samples will be collected and are presented on the attached figure. However, it should be noted that historical landfill operations were
for construction waste and commercial waste and was unlikely to include methane producing waste.

Bill

Bill Rees
Section Manager
VCP/Brownfields Section
P: [phone]
environmentalresponse.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.

On Tue, Jun 17, 2025 at 10:46 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Joe and Bill,

As discussed on Friday, DERR approval and comment of additional soil characterization and groundwater monitoring well locations is requested. Attached are draft
soil analytical summary tables, a draft temporary well analytical summary table, and a figure that indicates the soil assessment borings and the proposed additional
soil assessment locations and permanent groundwater monitoring wells for VCP Area B of the Power District Redevelopment Project. The May 2025 soil and
groundwater assessment was successful. Providing a great deal of data for completion of site characterization. There are several locations where further
delineation is required.

The analytical data for the May 2025 assessment identified four locations where additional characterization will be beneficial to completing charaterization and
developing a Remedial Action Plan for VCP Area B. Additional soil characterization is required for lead, arsenic, and cadmium in three locations (soil borings AB-21,
AB‑26/AB-37, and AB‑32/AB-34). Twelve additional soil borings to the groundwater interface will be advanced near those locations (see Figure) to collect soil
samples from surface soil, and 5 feet bgs, and at the soil/groundwater interface (approximately 10 feet bgs). Soil samples collected near soil boring AB-21 will also
be analyzed for oil range organics (ORO), and soil borings near soil borings AB-32/AB-34 will also be analyzed for PCBs to provide better delineation of reported
Aroclor 1260 contamination. Two surface soil samples will be collected near soil boring AB-35 to better delineate PCBs. Two soil borings will also be located near
soil boring AB-44 to better delineate the lead, arsenic, DRO, and ORO reported in that area. The proposed soil boring/sampling locations are presented on the
attached figure as red crosses and are summarized in the table below.
Prior
Assessment
Boring ID
Number of
Borings
Boring
Depth
(feet)Sample Depths (feet)COCs Analyses
AB-21 3 10 0.167, 5, 10 (interface)Lead, Cadmium & Arsenic, ORO USEPA 6010 & 7471, ORO
7/3/25, 11:38 AM State of Utah Mail - Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, Power District Redevelo…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1835853522979172286…2/3
AB-26 & AB-37 5 10 0.167, 5, 10 (interface)Lead, Cadmium & Arsenic USEPA 6010 & 7471
AB-32 & AB-34 4 10 0.167, 5, 10 (interface)Lead, Cadmium, Arsenic, PCBs USEPA 6010 & 7471, 8082
AB-35 (2) grab samples Surface 0.167 PCBs USEPA 8082
AB-44 2 10 0.167, 5, 10 (interface)Lead, Arsenic, DRO, ORO USEPA 6010 & 7471, DRO, ORO

As proposed in the Site Characterization Work Plan (SCWP), ten groundwater monitoring wells will be constructed to collect groundwater samples and a soil sample
from the soil/groundwater interface at each location. The well locations are generally consistent with the anticipated locations presented in the SWCP and will
provide water quality data from throughout VCP Area B and at the boundaries of the Area. Consistent with the SCWP, existing groundwater monitoring wells TT-1-2
and TT-2-1 will be monitored to provide water quality data southeast and east (anticipated upgradient direction) of VCP Area B. The proposed groundwater
monitoring well locations are presented as a magenta target circle on the attached figure.

Hill West has scheduled a drilling contractor to complete the additional assessment and well installation beginning on June 25, 2025. DERR assistance in meeting
this start date is greatly appreciated.

Don’t hesitate to reach out with any questions or concerns on this proposed work. And thank you both for all of your assistance on this project!

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

2 attachments
fx_PropGWMonWell&BoringLoc6-Paper.pdf
2255K
Soil Analytical Summary Table - SVOCs, rev2.pdf
302K
7/3/25, 11:38 AM State of Utah Mail - Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, Power District Redevelo…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1835853522979172286…3/3
Joseph Katz <[e-mail]>
RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, Power District
Redevelopment Project, VCP Area B
1 message
Wetzel, Scott (PacifiCorp) <[e-mail]>Wed, Jul 2, 2025 at 1
To: Joseph Katz <[e-mail]>
Cc: Bill Rees <[e-mail]>, Daniel Landry <[e-mail]>, "Claude Dahlk - Hill West Environmental ([e-mail])" <[e-mail]>, Jeff Tucker
<[e-mail]>, "Wilson, DavidWilson" <[e-mail]>, Carl Duke <[e-mail]>, "Jenson, Mike (PacifiCorp)" <[e-mail]>
Thanks Joe,

You’re definitely welcome to come over today. At this point all of the drilling and soil sampling has been completed. The GW wells are being conditioned and the monume
are being built for the GW wells. The plan is to have the wells conditioned and ready for sampling on Monday July 7th.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Wednesday, July 2, 2025 10:14 AM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Bill Rees <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail]) <[e-mail]>;
Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>; Carl Duke <[e-mail]>; Jenson, Mike (PacifiCorp)
<[e-mail]>
Subject: [INTERNET] Re: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

THIS MESSAGE IS FROM AN EXTERNAL SENDER.
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Hello Scott,

Thanks for letting me know about the soil samples.

I will plan on heading out to the site at 11:00 today to see how things are going.

Thanks,

Joe
My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…1/7
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Tue, Jul 1, 2025 at 4:33 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

Just an update on the discussion below. We’ve decided not to collect the soil samples. We don’t expect to encounter PFAS and the added cost is not warranted with an outside lab, as ChemTech-Ford does not
analyze soil for PFAS.

Thanks,

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Wetzel, Sco (PacifiCorp) <[e-mail]>
Sent: Tuesday, July 1, 2025 10:29 AM
To: Joseph Katz <[e-mail]>
Cc: Bill Rees <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail]) <[e-mail]
Jeff Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>; Carl Duke <[e-mail]>; Jenson, Mike (PacifiCorp)
<[e-mail]>
Subject: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

Hi Joe,

Thanks for the feedback. Attached is the addendum we will be following for additional soil characterization, final proposed groundwater monitoring well locations, and the proposed methan
gas assessment locations and method.

Hill West has been collecting and is holding samples from the soil/groundwater interface in the groundwater monitoring well installations. We will discuss and decide on the analysis of those
samples.

Thanks,

Scott

Scott Wetzel 801.220.2427 | 801.631.4572
7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…2/7
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Joseph Katz <[e-mail]>
Sent: Tuesday, July 1, 2025 9:41 AM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Bill Rees <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail]) <[e-mail]
Jeff Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>
Subject: Re: [INTERNET] Re: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

THIS MESSAGE IS FROM AN EXTERNAL SENDER.
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Hello Scott,

Thanks for the update on the status of the work plan and sampling this week.

Regarding PFAS sampling of soils, Scott and I did discuss that. Based on the overall lack of clear source areas, wide-spread contamination, landfill debris, etc. we do not feel that default s
PFAS sampling at each well location is necessary. We think it is most effective overall to evaluate the groundwater data and let that guide any further sampling for PFAS (including soils) if
necessary. The drawback to this approach though is time since it requires evaluation of the data and an additional sampling event if the data warrants it. However, there is no guarantee th
additional sampling would not be needed even if PFAS soil samples are collected during this event anyway.

This is a business decision for PacifiCorp and LHM to consider, but the DERR is not requesting soil sampling for PFAS during this well installation sampling event. However, we do feel it is
important to retain the option to collect opportunity soil samples in the event that obvious field indications of potential source areas/impacts (significant or suspicious landfill contents, staine
soils, etc.) are encountered during sampling. Since schedule is a concern on this project, opportunity samples, if needed, could expedite the characterization of Area B by collecting relevan
data for evaluation now rather than in a future event.

I hope this helps. Please let me know if you have any questions.

Thanks,

Joe

My phone number has changed! 385-391-8121
Joseph Katz | Environmental Scientist | Project Manager
385.391.8121 (mobile) | 801.359.8853 (fax)
195 North 1950 West, Salt Lake City, UT 84116
Website | Blog | Twitter | Facebook | LinkedIn
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA requirements.

On Tue, Jul 1, 2025 at 8:45 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Joe,

7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…3/7
We are finalizing the workplan based on the feedback last week. One final question, in our notes we show that you were going to talk to Scott Everett about whether we need to run the
soil/groundwater interface sample for the well installation borings for PFAS. Do you have direction from Scott on that for us to include? The water in the wells will be sampled for PFAS.

Thanks,

Scott

Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Bill Rees <[e-mail]>
Sent: Thursday, June 26, 2025 8:34 AM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Joseph Katz <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail])
<[e-mail]>; Jeff Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>; Carl Duke <[e-mail]>; Jenson, Mike
(PacifiCorp) <[e-mail]>
Subject: [INTERNET] Re: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

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Hi Scott,

Thank you for the email and responses to comments. We accept the proposal. Please send a short letter workplan with the updated tables, and figure indicating the letter workplan is a
amendment to the SCWP, with the objective to define the extent of impacts. Please be clear that the groundwater wells, installation, sampling procedures, etc. will be consistent with th
SCWP and corresponding QAPP. Please outline the soil gas sampling procedures.

We look forward to field work next week. Please keep us in the loop regarding the schedule.

Bill

Bill Rees
Section Manager
VCP/Brownfields Section
P: [phone]
environmentalresponse.utah.gov

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.

7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…4/7
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe

On Tue, Jun 24, 2025 at 5:05 PM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Hi Bill and Joe,

Thanks again for your expedited and thorough review of the proposed additional sampling locations, groundwater well locations, and next steps. Reponses to you
comments are included in red below, and an updated map and table are attached. As mentioned last week, the driller had to move our schedule and the investiga
and well installation is currently scheduled for the week of June 30th.

Thanks!

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

From: Bill Rees <[e-mail]>
Sent: Thursday, June 19, 2025 7:58 AM
To: Wetzel, Sco (PacifiCorp) <[e-mail]>
Cc: Joseph Katz <[e-mail]>; Daniel Landry <[e-mail]>; Claude Dahlk - Hill West Environmental ([e-mail]) <[e-mail]
Jeff Tucker <[e-mail]>; Wilson, DavidWilson <[e-mail]>
Subject: Re: Proposed Groundwater Monitoring Well and Addional Soil Characterizaon Locaons, Power District Redevelopment Project, VCP Area B

Scott,

We have reviewed the email and data tables. Thank you for proposing additional samples to maximize characterization. Our comments follow:

1. The email contains preliminary data tables. We have not received/reviewed the complete lab data packages. If QC or transcription issues are encountered, additional sampling or o
adjustments to project work may be necessary. Understood.
2. Please revise the letter workplan to indicate that all future sampling will be conducted in accordance with the SAP/QAPP. Sampling was completed consistent with the SAP/QAPP. P
ensure all detection limits are below screening levels to avoid potential QC Sensitivity issues. The correct analytical method was selected, matrix interference can cause elevated repo
limits, as was observed for several SVOCs.

3. In Table 3, it appears that the RSL screening level is for benzo (e) pyrene, not benzo (a) pyrene. This changes the data review as there are now exceedances of both the residentia
commercial RSL. Please revise and propose sampling. An updated Table 3 is attached. Addition of SVOCs to the proposed analyses has been added, as well as two additional boring
AB-43. The following table has been updated to reflect the additional analyses and borings, and the attached figure includes the two additional borings.

7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…5/7

4. AB-42 - AB-44 contained elevated petroleum compounds, but sampling is only proposed around AB-44. Please provide a rationale for this proposal and indicate why additional sam
are not proposed to delineate the elevated concentrations. Two additional borings near B-43 have been added to address benzo(a)pyrene above the Industrial RSL in surface soil and
to 5 feet bgs. AB-42 is in an asphalted area. The reported surface soil contamination and will be removed with the demolition and recycling of the asphalt and is in a commercial land
area.

5. AB-21 - Please note that there is uncertainty under the road east of this location. Samples may not be collected during this phase of investigation due to utilities, but a materials
management strategy will be needed as part of the RAP, utility work and redevelopment. A MMP has been developed and approved by DERR for the Power District Development Proje
a whole. Area B would fall under that plan.

6. While not expected during this phase, future sampling should consider methane since this site could be part of a former landfill. Soil gas samples will be collected within Area B to
assess methane for potential vapor intrusion. Four samples will be collected and are presented on the attached figure. However, it should be noted that historical landfill operations w
for construction waste and commercial waste and was unlikely to include methane producing waste.

Bill

Bill Rees
Section Manager
VCP/Brownfields Section
P: [phone]
environmentalresponse.utah.gov

Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.

On Tue, Jun 17, 2025 at 10:46 AM Wetzel, Scott (PacifiCorp) <[e-mail]> wrote:
Joe and Bill,

As discussed on Friday, DERR approval and comment of additional soil characterization and groundwater monitoring well locations is requested. Attached are
soil analytical summary tables, a draft temporary well analytical summary table, and a figure that indicates the soil assessment borings and the proposed additio
soil assessment locations and permanent groundwater monitoring wells for VCP Area B of the Power District Redevelopment Project. The May 2025 soil and
groundwater assessment was successful. Providing a great deal of data for completion of site characterization. There are several locations where further
delineation is required.

The analytical data for the May 2025 assessment identified four locations where additional characterization will be beneficial to completing charaterization and
developing a Remedial Action Plan for VCP Area B. Additional soil characterization is required for lead, arsenic, and cadmium in three locations (soil borings AB
AB‑26/AB-37, and AB‑32/AB-34). Twelve additional soil borings to the groundwater interface will be advanced near those locations (see Figure) to collect soil
samples from surface soil, and 5 feet bgs, and at the soil/groundwater interface (approximately 10 feet bgs). Soil samples collected near soil boring AB-21 will a
be analyzed for oil range organics (ORO), and soil borings near soil borings AB-32/AB-34 will also be analyzed for PCBs to provide better delineation of reporte
Aroclor 1260 contamination. Two surface soil samples will be collected near soil boring AB-35 to better delineate PCBs. Two soil borings will also be located n
soil boring AB-44 to better delineate the lead, arsenic, DRO, and ORO reported in that area. The proposed soil boring/sampling locations are presented on the
attached figure as red crosses and are summarized in the table below.
Prior
Assessment
Boring ID
Number of
Borings
Boring
Depth
(feet)Sample Depths (feet)COCs Analyses
AB-21 3 10 0.167, 5, 10 (interface)Lead, Cadmium & Arsenic, ORO USEPA 6010 & 7471, ORO
7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…6/7
AB-26 & AB-37 5 10 0.167, 5, 10 (interface)Lead, Cadmium & Arsenic USEPA 6010 & 7471
AB-32 & AB-34 4 10 0.167, 5, 10 (interface)Lead, Cadmium, Arsenic, PCBs USEPA 6010 & 7471, 8082
AB-35 (2) grab samples Surface 0.167 PCBs USEPA 8082
AB-44 2 10 0.167, 5, 10 (interface)Lead, Arsenic, DRO, ORO USEPA 6010 & 7471, DRO, ORO

As proposed in the Site Characterization Work Plan (SCWP), ten groundwater monitoring wells will be constructed to collect groundwater samples and a soil sa
from the soil/groundwater interface at each location. The well locations are generally consistent with the anticipated locations presented in the SWCP and will
provide water quality data from throughout VCP Area B and at the boundaries of the Area. Consistent with the SCWP, existing groundwater monitoring wells TT
and TT-2-1 will be monitored to provide water quality data southeast and east (anticipated upgradient direction) of VCP Area B. The proposed groundwater
monitoring well locations are presented as a magenta target circle on the attached figure.

Hill West has scheduled a drilling contractor to complete the additional assessment and well installation beginning on June 25, 2025. DERR assistance in mee
this start date is greatly appreciated.

Don’t hesitate to reach out with any questions or concerns on this proposed work. And thank you both for all of your assistance on this project!

Scott
Scott Wetzel
Env Remediation & Reclamation Mgr
RMP Environmental Services | PacifiCorp
801.220.2427 | 801.631.4572
[e-mail]
www.pacificorp.com
1407 W North Temple, Salt Lake City, UT 84116

7/3/25, 11:40 AM State of Utah Mail - RE: [INTERNET] Re: Proposed Groundwater Monitoring Well and Additional Soil Characterization Locations, P…
https://mail.google.com/mail/u/0/?ik=3a2596ed70&view=pt&search=all&permthid=thread-f:1835195501445156333%7Cmsg-f:1836553094850649741…7/7