DSHW-2023-004189 - 0901a068811e6727

Deq submit <[e-mail]>
RE: [External] RE: Recycled Earth Subsurface Investigation
1 message
Wadman, Heather <[e-mail]>Thu, Apr 27, 2023 at 3:49 PM
To: "Rasmuson, Anna" <[e-mail]>, "[e-mail]" <[e-mail]>
Cc: "Cahoon, Tyler R." <[e-mail]>, "Cahoon, Brad R." <[e-mail]>, "Wilson, DavidWilson"
<[e-mail]>, "[e-mail]" <[e-mail]>
Hi Anna,
Ogden is okay with the changes in drilling methods and well locations you are proposing. However, since the groundwater monitoring
wells were a requirement by the state, state approval will be required.
Thank you,
Heather Wadman, PE, CFM
Ogden City Engineering | Principal Engineer
From: Rasmuson, Anna <[e-mail]>
Sent: Thursday, April 27, 2023 3:01 PM
To: [e-mail]
Cc: Cahoon, Tyler R. <[e-mail]>; Cahoon, Brad R. <[e-mail]>; Wilson, DavidWilson
<[e-mail]>; Wadman, Heather <[e-mail]>; [e-mail]
Subject: [External] RE: Recycled Earth Subsurface Investigation
[External Email] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe.
Hello,
I’m writing to follow up on my previous email. Can you please advise whether direct push methods will be acceptable for the
subsurface investigation at Recycled Earth?
Additionally, we would like to request moving the location of MW-5 due to access issues and utilities. The proposed location is shown
on the attached figure and is approximately 40 feet to the northwest of the original location. This location fulfills the original purpose of
MW-5 to assess whether groundwater impacts may have migrated to the downgradient end of the site and can be accessed from
Midland Drive. Please let us know if we may proceed with this location.
Kind regards,
Anna
Anna Rasmuson, Ph.D., P.G. | Geological Engineer
Pronouns: she, her, hers
Mobile [phone] | [e-mail]
DSHW-2023-004189
Tetra Tech | Leading with Science® | ECA
4750 W. 2100 S., Suite. 400. | Salt Lake City, UT 84120 | tetratech.com

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From: Rasmuson, Anna
Sent: Monday, April 24, 2023 4:58 PM
To: '[e-mail]' <[e-mail]>
Cc: Cahoon, Tyler R. <[e-mail]>; Cahoon, Brad R. <[e-mail]>; Wilson, DavidWilson
<[e-mail]>
Subject: Recycled Earth Subsurface Investigation

Hello,
Tetra Tech is continuing the site characterization activities at the Recycled Earth south property. The next step will be the subsurface
investigation that consists of soil borings and groundwater monitoring well installations. The proposed drilling dates for this work are
May 5 and 6, 2023, with utility clearance being performed a few days prior to drilling. We are providing this advance notice via this
correspondence as requested by the agencies.
Tetra Tech is also providing this correspondence to present a minor revision to the Recycled Earth Site Characterization Plan SOP
number 30. The drilling company, E.T. Technologies, is urging that we use direct-push drilling methods instead of hollow-stem auger
drilling methods for the site property because the wells will be shallow (i.e., less than 20 feet deep). Attached is the revised SOP
describing direct push drilling methods that have been used on similar monitoring well installations.
Please let us know if you have questions on this revision.
Regards,
Anna

Anna Rasmuson, Ph.D., P.G. | Geological Engineer
Pronouns: she, her, hers
Mobile [phone] | [e-mail]
Tetra Tech | Leading with Science® | ECA
4750 W. 2100 S., Suite. 400. | Salt Lake City, UT 84120 | tetratech.com

This message, including any attachments, may include privileged, confidential and/or inside information. Any distribution or use of this
communication by anyone other than the intended recipient is strictly prohibited and may be unlawful. If you are not the intended recipient, please
notify the sender by replying to this message and then delete it from your system.

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