[Durham INC] Dec 5 Injecting BB&T site, contaminated w/ dry cleaning chemicals, public meeting

Tue Nov 26 21:15:41 EST 2013

Thursday, Dec. 5 Public Meeting regarding injecting the BB&T site, contaminated with dry cleaning chemicals

The Department of Environment and Natural Resources (DENR)'s DSCA program is holding a public information session about injecting the BB&T site (now called One Hour Martinizing) at the corner of Club Blvd and Watts St. DSCA will make a presentation and question and answer session will follow. 

My main concern with the injection is that the injection could cause the plume to spread and the concentrations levels to increase. The contractor, Hart & Hickman, has changed and the proposed injection locations have also changed since the Remedial Action Plan was adopted. If you are interested in reading the sections of the Remedial Action Plan (RAP) that deal with injection see the attachment.

Thursday, December 5 

at the George Watts Montessori Elementary School's cafeteria from 7 - 8:30 pm.

I propose that interested people meet at the school about 6 pm to discuss questions (in addition to the issues raised below) and concerns. I do not know if the school will be open to the public prior to 7 pm. If not, and the weather is warm enough, we could meet outside of the school. Another option is to communicate among ourselves using email.

If you are interested in receiving monthly updates from Billy Meyer, the One Hour Martinizing project manager, write Billy directly at <billy.meyer at ncdenr.gov>.  Billy's most recent emails are below. 

Let me know if you would like to learn more about this site in particular. I have decided to devote my energies right now on this site given what else I have on my plate. 

I hope to see you at the information meeting on December 5th.

In addition to the One Hour Martinizing site, there are twelve additional PERC-contaminated sites in Durham County.  

Laura Drey (pronounced "dry")

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> From: "Meyer, Billy" <billy.meyer at ncdenr.gov>
> Subject: Pulic Information Session: One Hour Martinizing (Formerly BB&T)
> Date: November 20, 2013 8:12:57 AM EST
>  
> All,
> I am sending this to announce a public information session to discuss implementing the groundwater remediation phase of the Remedial Action Plan (RAP) dated April 12, 2012. The RAP is viewable on the web at the following location:  http://portal.ncdenr.org/c/document_library/get_file?uuid=68eb2050-d111-41e2-93d8-5ad239125939&groupId=38361.
>  
> The information session will be held on Thursday, December 5, 2013 from 7:00-8:30, in the cafeteria of George Watts Elementary School located at 700 Watts Street in Durham, NC.  This information session has been mentioned in previous monthly updates for the site and will provide an update of planned injection activities and site data pertinent to the injection strategy.
>  
> I encourage you to forward this email to any interested person or party as the people being notified (by me) of the information session are those on this distribution list.  I have been informed that the Trinity Home Owner Association President may have changed.  It would be helpful if someone would attempt to notify them, and also myself when these changes happen so I can add them to my distribution list. 
>  
> Thank you and please contact me with any questions concerning the information session at 919-707-8366.
>  
> Sincerely,
> Billy Meyer 

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> From: Laura Drey [mailto:lauradrey at ncrrbiz.com] 
> Sent: Monday, November 25, 2013 3:33 PM
> To: Meyer, Billy; Joe McKeon; Rusty Norris; Cathy Cralle Jones; Bryan Brice; Jim Hopf
> Subject: Questions re: injection of One Hour Martinizing (Formerly BB&T site)
>  
> Hi Billy,
>  
> We have questions about the injection of the One Hour Martinizing site.  We hope these issues will be covered during the December 5th public information meeting. Could we please also get an email response prior to the public meeting?
>  
> 1.      Will the injections push the contaminated groundwater toward the residences and how will we know that this is or is not occurring?
> 2.      What steps are being taken to ensure that the injections will not increase the size of the plume?
> 3.      Will any of the gases generated by the remediation impact the buildings and how will we know whether or not the buildings are being impacted?
> 4.      One round of methane and groundwater sampling is scheduled for February, 2014.  Does that include all of the groundwater and soil vapor wells? If the answer is no, which wells are not included? We want to know if MW-16S, MW-16I, and SV-18 (the wells between 1419 Dollar and the source) are included and also if the sentinel wells for the other property owners are also included in the methane and groundwater sampling?
> 5.      What are the next indoor air monitoring dates after December? The reason I am asking is that the report calendar ends in February. Can we have an updated schedule?
> 6.      When are the future methane and groundwater monitoring events? 
> 7.    To the extent the indoor air PCE concentrations increases in the affected residential and Family Church properties, will DENR provide the owner(s), neighbors of those impacted properties and concerned citizens the opportunity to discuss with DSCA any "increased levels of mitigation" proposed for such affected properties,* before such mitigation measures are used? We would like the owners, residents and businesses to be provided the opportunity to ask questions, have their concerns addressed and provide input into any new or additional technical measures to be considered, selected and implemented.
> 8.   Will the Adventus conceptual remedial design estimated dated September 27, 2011, that was attached on page 15 to the Remedial Action Plan (RAP), be used? If not what the new or additional technical measure that are being considered or have been selected? 
> 9.   What company is going to be actually doing the injection? Will it be Hart & Hickman, the new contractor, or a subcontractor of Hart & Hickman? If it is a subcontractor could you provide us the subcontractor's name? What are the names of the personnel that will be on site during the injection?
> 10. Has the cost changed from September 27, 2011, that was attached on page 15 to the Remedial Action Plan (RAP)? If so what the cost?
>  
> I hope that you will have a good Thanksgiving.
>  
> Thanks.
>  
> Take care,
> Laura
>  
> *from the Remedial action Plan (RAP)

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> From: "Meyer, Billy" <billy.meyer at ncdenr.gov>
> Subject: One Hour Marntinizing (formerly BB&T) Site Update November 2013
> Date: November 7, 2013 9:09:11 AM EST

All,
The November 2013 update is posted at the following location: http://portal.ncdenr.org/web/wm/dsca/one_hour_martinizingunder "One Hour Martinizing DC32-0013 (formerly known as BB&T Durham, NC" under "2013 Site Updates" and then "November 2013".  The update is in the same format with a cover memo which details project updates that have occurred since the October 2013 update and includes  figures and data tables used as part of the data evaluation. 

I have attached a copy of the updated calendar schedule and it is also posted at:http://portal.ncdenr.org/web/wm/dsca/one_hour_martinizing.  It is located under "One Hour Martinizing DC32-0013 (formerly known as BB&T Durham, NC"  under "Updates" and "Remedial Action Plan Schedule".   The calendar includes a tentative schedule to indicate when activities are estimated to occur through January of 2014.

Also the following is a link to a webpage which instructs you how to review DENR reports online including the most recent “Soil Vapor Assessment Report” for October 2013:  http://www.ncdsca.org/c/document_library/get_file?uuid=ad727cf9-9dd9-4658-83bc-cfbb488abd6f&groupId=38361
The site ID, or value is "320013", with no dashes.

The following are the highlights of the November 2013 site updated memo (please read the memo as it includes illustrations and data tables):

Monthly Methane screening:  The methane levels have remained stable and pose no current health risk at this time.

Soil Vapor Sampling Results:   Soil vapor samples were collected from select locations to evaluate current subsurface conditions.  These conditions are documented in the report for which a link is provided above.  Soil vapor concentrations are the highest on the source properties and areas where high concentrations of PCE in groundwater have been observed.  Vapor concentrations have increased in 3 off-source property wells. Due to the limited number of sampling points it is difficult to determine the significance of these increases at this time. However as the results of continued vapor monitoring proposed in the RAP are evaluated, adjustments to the remedial approach and monitoring will continually be evaluated and communicated when necessary. The pre-injection soil vapor sampling event is tentatively scheduled for the week of December 16, 2013.

Indoor Air:  Concentrations remain stable with previous measurements and the associated risk continues to remain well below acceptable levels to occupants of the residences at 1419 and 1421 Dollar, and the church located at 1414 Watts.

EHC injection (remediation): Based on the groundwater concentrations recently in August and September, the injection zone has been modified to meet the objectives of the RAP (see attached update for modified injection zone).  This will require some off-source property injection onto the Triangle Family Church Property.  The DSCA program is currently negotiating with the property owner regarding the injection.  The EHC injection has been scheduled with an injection subcontractor for the week of January 6, 2014. Pre-injection sampling activities are scheduled for the week of Dec 16, 2014.

Public Information Session: A public information session is currently being scheduled to provide interested parties an update on the Remedial Action Plan.  This will likely be held in early December. The specifics will be released as soon as they are available.

If you have any questions about this email, the attached memo, schedule, or otherwise, please feel free to contact me. I also encourage you to pass this information along to any person or party whom might have interest.

Sincerely,
Billy Meyer
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