16017_Carolina_Medical_Informal_email_response_20120809

Kirk,

This is my informal feedback to your draft. After I receive your work plan, I will likely have no material
comments.
Let me know if you have any questions about this.
Brad

• Add an outdoor background sample
• Confirm that detection limits are at or below IHSB screening levels
• Report levels in ug/m3
• If any drain lines to the old perc disposal system still exist, make sure they are blocked somehow
• Include IHSB Industrial Indoor Air screening standards in the report and reference the date of
those standards
• Do initial and final vacuum readings to make sure canister was leak free and that the flow
controller collected the sample over the specified amount of time
• Make sure canisters are certified