From: Gil Cobb

Sent: Fri Feb 17 08:34:20 2023

To: CLAUSSEN Jennifer * DEQ

Cc: Omar Cruz

Subject: Re: Salem Airport Project; LUST#24-97-4116 May Trucking

Importance: Normal

Thank you Jennifer. I will revise our proposal to include the additional samples requested. We are aware that additional work may be required to delineate the release if we encounter contamination in this phase of investigation. We will make sure that the RBCA report, once prepared, contains the requested components.

Gil Cobb, RPG

Oregon #G1440

Washington #1592

Point Source Solutions

5317 NE St Johns Road, Suite D

Vancouver, Washington 98661

phone: 503.916.9254

On Fri, Feb 17, 2023 at 8:29 AM CLAUSSEN Jennifer * DEQ <Jennifer.CLAUSSEN@deq.oregon.gov> wrote:

Gentlemen,

Thank you for the opportunity to comment on this work plan.

The work plan looks acceptable, however, my comments are as follows:

• * Samples should be collected at the soil/water interface and at 8-10 bgs.
  • * May need to delineate to determine extent of contamination
• * Please collect a sample at 3-4’ bgs near the fill port.
• * Please include metals in your sampling analysis.
• * If a risk-based closure report is prepared, ensure all elements needed for site evaluation are provided including:
  • * Site history
  • * Site description/physical setting
  • * Site maps
  • * Site setting and geology
  • * Site groundwater and surface water, including stormwater
  • * Site investigation/nature and extent of contamination (vertical and horizontal)
  • * Conceptual site model including human and ecological risk

The items above are what is needed to evaluate this site for a risk-based closure. Please let me know if you have any questions, and I look forward to receiving the report from you. Hopefully this will be a easy site to close!

Sincerely,

Jennifer Claussen

DEQ-Environmental Cleanup Program

4026 Fairview Industrial Dr. SE

Salem, OR 97302

Cell: 503-545-9219

Fax: 503-378-4196

From: Omar Cruz <omar.cruz@maytrucking.com>

Sent: Thursday, February 16, 2023 7:12 AM

To: CLAUSSEN Jennifer * DEQ <Jennifer.CLAUSSEN@deq.oregon.gov>

Subject: Fw: Salem Airport Project

Good morning Jennifer,

Here is a proposal from point source, can you assure the proposed samples will meet your needs?

Thank you!

Omar Cruz

May Trucking Company

503.393.7030 X 13219

Fax: 503.390.3895

From: Gil Cobb <gil@pointsourcesolutions.com>

Sent: Wednesday, February 15, 2023 5:02 PM

To: Omar Cruz <omar.cruz@maytrucking.com>

Cc: Laurie Messer <lemesser@aol.com>; Jeff Jackman <jeff@pointsourcesolutions.com>

Subject: Re: Salem Airport Project

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.

Omar,

Attached is our proposal. We may be able to respond a little quicker than noted in the proposal, but we can't drill until we have both public and private locates completed and are assured that Jennifer Clausen is happy with what we are proposing.

Let me know if you have any questions.

Thanks for the opportunity.

Gil Cobb, RPG

Oregon #G1440

Washington #1592

Point Source Solutions

5317 NE St Johns Road, Suite D

Vancouver, Washington 98661

phone: 503.916.9254