Vapor Intrusion Survey
Back to General Section
Question 26. Please list any policy statements, guidance, or regulatory documents that relate to the vapor intrusion pathway below including any Internet links:
Back to General Section
- Alaska: Draft Technical Memo:
- California: Guidance for the Evaluation of the Vapor Intrusion to Indoor Air Pathway by DTSC, User's Instructions to Vapor Risk 2000.
- Colorado: Internal DPHE guidance document is under development.
- Colorado: http://oil.cdle.state.co.us
- 1) Storage Tank Regulations Colorado Department of Labor and Employment Division of
- Oil and Public Safety (7 C.C.R. 1101-14)
- 2) Colorado Department of Labor and Employment Division of Oil and Public Safety
- Petroleum Storage Tank Owner/Operator Guidance Document
- Delaware: These documents are currently in development.
- Florida: Chapter 62-782.600(2)(a), Florida Administrative Code, requires evaluation of current exposure and potential risk of exposure to humans and the environment, including multiple pathways of exposure.
- Indiana: OSWER Guidance as a basic screening tool. Massachusetts guidance for indoor air sampling. IDEM uses OSWER to screen and a combo of both soil gas and whole air indoor air samples to confirm or eliminate the vapor intrusion pathway. Indoor air backgound is very confounding and soil gas sampling procedures have not been verified with confidence.
- Kentucky: Currently, we are using the Johnson-Ettinger Model for Intrusion into buildings from soils/water and Schaum et al. Whole House Model for VOCs from dometic water use during RCRA/CERCLA type cleanups. We require it to be included if VOCs are present in soils or groundwater.
- Nebraska: Risk-Based Corrective Action at LUST Sites (Guidance Document):
- New Jersey: http://www.nj.gov/dep/srp/guidance/vaporintrusion/
- Oklahoma: Risk-Based Decision Making document:
- Tennessee: Division of Underground Storage Tank Technical Guidance Document 008.
- Utah: We are currently on the State/EPA Petroleum Vapor Intrusion Workgroup (Joe Vescio with US EPA is the group leader). Our workgroup is evaluating soil gas data from many sites with the goal of determining a biodegradation factor for petroleum vapors in the vadose zone.
- Virginia: http://www.deq.state.va.us/vrprisk
- Vermont: Please define vapor intrusion more clearly. We evaluate the potential for a vapor intrusion pathway at every hazardous waste site that involves volatile compounds but we do not have this as a separate formal program.
- Wisconsin: Guidance and fact sheet:
Also planning technical investigaion guidance based on current technical advice to contractors working on 1) dry cleaning sites and 2) brownfield projects.
- EPA: Generally, the modeling from groundwater to indoor air is fraught with uncertainty. We choose a building that is representative of the situation we are trying to assess and perform subslab sampling. Then indoor air concentrations are modeled from the subslab soil vapor concentrations. We do not recommend indoor air sampling due to background and alternate source issues.
- EPA: http://www.epa.gov/epaoswer/hazwaste/ca/eis/vapor.htm
- Other: We are currently modifying our policies, procedures, and forms.
This page was built by RTI.