From: HOOD Robert * DEQ
Sent: Wed Dec 15 10:02:21 2021
To: Jeff Jackman
Cc: Gil Cobb; DAUGHERTY Katie * DEQ
Subject: RE: 5917 Pacific Coast Industrial Laundry-DEQ Comments
Importance: Normal
Jeff:
DEQ agrees with your proposed seven proposed locations. We think you should add some more borings in the following areas:
-along the sewer line, if possible for collection of soil and sub-slab vapor samples.
-In the parts washer area.
-Near the iron door area.
We see you did not address our earlier bulleted item re: additional sub-slab points. Is this because the property will remain commercial use? As mentioned, and EES or NEC may be needed for the site if that is the case.
Thank you and look forward to a full work plan. -Rob
From: Jeff Jackman <jeff@pointsourcesolutions.com>
Sent: Monday, November 15, 2021 3:53 PM
To: HOOD Robert * DEQ <robert.hood@deq.state.or.us>
Cc: Gil Cobb <gil@pointsourcesolutions.com>
Subject: Re: 5917 Pacific Coast Industrial Laundry-DEQ Comments
Hi Rob,
Attached is a draft figure showing the features you requested in your comments, as well as proposed boring locations. Please review and let me know your thoughts. Once we have nailed down the number of borings, number of samples, and the necessary analytical, we can start preparing the work plan.
Thanks!
Jeff Jackman
Point Source Solutions
On Wed, Nov 10, 2021 at 9:32 AM HOOD Robert * DEQ <robert.hood@deq.state.or.us> wrote:
Ok, thanks for clarifying Jeff. They can get a little confusing! -Rob
From: Jeff Jackman <jeff@pointsourcesolutions.com>
Sent: Tuesday, November 9, 2021 11:58 AM
To: HOOD Robert * DEQ <robert.hood@deq.state.or.us>
Cc: Gil Cobb <gil@pointsourcesolutions.com>
Subject: Re: 5917 Pacific Coast Industrial Laundry-DEQ Comments
Hi Bob,
My apologies. I was mixing this site up with the other one that we are working on with you (2100 Broadway). The missing sample location diagram I referred to applies to Broadway. We do not yet have such a diagram for 7133 NE Glisan. That said, our plan is still to send you a draft diagram showing the features you identified in your comments for this site as well as the USTs and drywell that we identified in the geophysical survey.
The other workplan (2100 NE Broadway) is coming your way this week.
Thanks, and sorry for the confusion,
Jeff Jackman
Point Source Solutions
On Tue, Nov 9, 2021 at 8:43 AM Jeff Jackman <jeff@pointsourcesolutions.com> wrote:
OK. One of the comments was that the Proposed Sample Location Diagram was missing from the work plan that we submitted. Turns out that it just got lost in the shuffle when Kyle was breaking the document up into smaller pieces so that you could receive it. I'm thinking the next step is to take the original diagram and add the information that we recently obtained via the geophysical survey as well as the site features listed in your comments. We could then send you the revised diagram as a draft and discuss specific sample locations. Once the sample locations have been determined we can submit a complete revised work plan for your review. Sound like a plan?
Thanks!
Jeff Jackman
Point Source Solutions
On Tue, Nov 9, 2021 at 8:30 AM HOOD Robert * DEQ <robert.hood@deq.state.or.us> wrote:
Hey Jeff. I think you should update from my comments below and then we can decide the best locations for borings in your work plan. Also, is your client going to enter into an EES with DEQ or try to meet urban residential screening levels. –Rob
From: Jeff Jackman <jeff@pointsourcesolutions.com>
Sent: Thursday, November 4, 2021 5:24 PM
To: HOOD Robert * DEQ <robert.hood@deq.state.or.us>
Subject: Re: 5917 Pacific Coast Industrial Laundry-DEQ Comments
Hi Robert,
We completed the geophysical survey today. We found one large UST in the right-of-way east of the building, and another UST near DEQ's sample #PC-4. Seems likely that the second UST is the source of the high TPH that was detected in the DEQ sample. We also located the site utilities. The storm drain in the storage yard/parking lot discharges to a drywell a few feet away. Water service is from the east adjoining street, and sewer is from the south adjoining street. The condensate drain in the boiler room is tied into the building's sewer drain system. We will prepare a work plan and submit it soon. Obviously we plan to collect samples at the UST locations and at the drywell, and also plan to decommission the tanks. Do you anticipate that DEQ will require any additional sample locations?
Thanks,
Jeff Jackman
Point Source Solutions
On Tue, Oct 26, 2021 at 8:53 AM HOOD Robert * DEQ <robert.hood@deq.state.or.us> wrote:
Jeff. DEQ reviewed PSS’s Phase I ESA and DEQ’s 2015 expanded preliminary assessment. DEQ agrees with PSS’s recommendations to conduct a limited subsurface investigation (soil and soil vapor), which should include a geophysical survey to search for abandoned underground storage tanks (USTs) and former UST excavations. Below other observations/conclusions from DEQ’s review:
· Dry cleaner chemicals were detected in indoor air samples during DEQ’s 2015 investigation work, but below occupational screening levels. Benzene and ethylbenzene were greater than occupational screening levels. In the sub-slab samples, benzene was less than occupational screening levels. DEQ concluded it was likely that benzene detections were from site operations and not related to subsurface environmental releases.
· With the exception of one sample (PC-4 and 91,000 ug/m3), TPH soil gas results were below urban residential screening levels. However, this result is below the occupational screening level for inhalation from soil gas, which is the current site use.
· Please locate and identify sanitary/storm drains lines, other utility lines, and other features of potential environmental concern where releases may have occurred or that may act as preferential contaminant pathways. Please also show the above and following features on a figure(s): stormwater drains to adjoining roadways and catch basin in the paved storage yard (?north side of site), parts washer in the tool repair area, drainage hole in boiler room floor, iron gate (west side of building somewhere), and tool repair area.
· If the site is redeveloped for urban residential use, additional investigation is needed to determine the nature and extent of sub-slab soil gas exceedances and potentially soil remediation based on the investigation results. The owner can do this now and further evaluate for urban residential pathway or agree to an EES/NEC if they still fail for this pathway and do not want to do this work now.
· Drinking water is not apparent. At this time, DEQ does not see the need for going to ~164’ to collect groundwater samples. After new soil data is collected, we can see what the new soil sampling results indicate, and determine whether or not additional soil and/or groundwater sampling is necessary.
· Please indicate when the natural gas boiler was removed.
All the above information should be put into a report (along with earlier data) with investigation work and a full human health and ecological risk evaluation should be completed. Please provide a work plan for your upcoming work along with the figures that show all other areas of potential concern so we can maximize your upcoming investigation work. –Rob
Robert A. Hood, Jr.
Natural Resources Specialist 4
Oregon DEQ
700 NE Multnomah Street, Ste. 600
Portland, OR 97232
Office (503) 229-5617-Note* I am not working in the office until further notice, please call my Cell (503) 860-9661 or email me.