DERR-2025-008611

Leigh Anderson <[e-mail]>
Pride Cleaners Question
7 messages
Leigh Anderson <[e-mail]>Thu, Jul 10, 2025 at 11:45 AM
To: Liberty Coe <[e-mail]>
Hello! I wasn't sure if you're still the project manager for the tanks side of this. I'd been given the go ahead to start our
VCP review of the RAP, and I noticed something I wanted to check in with you guys on.
They're proposing taking groundwater confirmation samples for VOCs and petroleum directly from the excavation with a
dipper, which I've heard is maybe something that is done in Colorado, I'm not sure if you guys do this here. But also in
another part of the document they indicate they don't expect to encounter groundwater in the excavation.
There's a few things I'm uneasy about in terms of groundwater confirmation samples from water with VOCs and
petroleum exposed to the open air, as well as the issue with not expecting groundwater. It's also odd to me in that one of
their original arguments for why it was the UST was that they believed they'd pulled turbid samples from GP that caused
higher levels of petroleum to be detected, and I also don't see how you don't get a turbid sample in this case as well.
They do propose groundwater monitoring from wells on the VCP end for some compounds we're concerned with, I'm
wondering if we should ask them to do a round with petroleum once they're done digging if they don't encounter
groundwater in excavations?
Anyway, let me know your thoughts,
Thanks,
Leigh
Liberty Coe <[e-mail]>Thu, Jul 10, 2025 at 12:12 PM
To: Leigh Anderson <[e-mail]>
Leigh,
Quin is the new project manager on this site and I will forward this email onto him and Chris and let them take the lead.
I've encountered groundwater samples collected from an excavation during tank removal but never as confirmation
samples for a corrective action.
Thanks!
[Quoted text hidden]
Quinn Walker <[e-mail]>Thu, Jul 10, 2025 at 12:24 PM
To: Leigh Anderson <[e-mail]>
Cc: Chris Howell <[e-mail]>
Leigh,
I am the project manager for the tanks side. We sent a letter to the RP and consultant addressing comments and one of
the conditions was that the proposed downgradient groundwater monitoring wells would need to also be sampled for
petroleum constituents.
Please see attached, it should have also been cc'ed to yourself.
Thank you,
Quinn
On Thu, Jul 10, 2025 at 12:13 PM Liberty Coe <[e-mail]> wrote:
[Quoted text hidden]
11/20/25, 1:06 PM State of Utah Mail - Pride Cleaners Question
https://mail.google.com/mail/u/0/?ik=5be3741f93&view=pt&search=all&permthid=thread-a:r2247134938999203504&simpl=msg-a:r740453732171813…1/3
--
Quinn Walker
Environmental Scientist | Division of Environmental
Response and Remediation
P: [phone]
environmentalresponse.utah.gov
Emails to and from this email address may be considered public records and thus subject to Utah GRAMA
requirements.
DERR-2025-004751.pdf
834K
Leigh Anderson <[e-mail]>Thu, Jul 10, 2025 at 4:07 PM
To: Quinn Walker <[e-mail]>
Sorry about that!
I was forwarded the letter, though I missed the part where you wanted the downgradient wells, I was expecting attached
comments, sorry about this as well. It sounds like we're on the same page then, I'll draft my comments accordingly. If you
would like you could also give them a look, they have been through Scott as well. I have made this discussion comment
number 7.
[Quoted text hidden]
Pride RAP Comments2C.doc
40K
Quinn Walker <[e-mail]>Fri, Jul 11, 2025 at 9:18 AM
To: Leigh Anderson <[e-mail]>
Thanks Leigh,
The comment number 7 regarding LPST requirements looks good to me.
Quinn
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Leigh Anderson <[e-mail]>Tue, Aug 5, 2025 at 10:28 AM
To: Quinn Walker <[e-mail]>
Hey Quinn, we have a new revised RAP that I'm still working on with Blake Downey and I'm going to send it to you, but
I'm ironing out stuff with him first. Just wanted to check, were you okay with the excavation sample so long as they did
have a well they sampled too, or did you not want the excavation groundwater sample at all.
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Quinn Walker <[e-mail]>Tue, Aug 5, 2025 at 10:41 AM
To: Leigh Anderson <[e-mail]>
Hi Leigh,
Yes, if groundwater is encountered in the excavation I am okay with the excavation sample so long as they are also
sampling the downgradient monitoring wells proposed (and analyzing for petroleum related constituents).
11/20/25, 1:06 PM State of Utah Mail - Pride Cleaners Question
https://mail.google.com/mail/u/0/?ik=5be3741f93&view=pt&search=all&permthid=thread-a:r2247134938999203504&simpl=msg-a:r740453732171813…2/3
Thank you,
Quinn
[Quoted text hidden]
11/20/25, 1:06 PM State of Utah Mail - Pride Cleaners Question
https://mail.google.com/mail/u/0/?ik=5be3741f93&view=pt&search=all&permthid=thread-a:r2247134938999203504&simpl=msg-a:r740453732171813…3/3