The
following CSSAB Members were present:
Kevin Reinert
Ron Neufeld
Don Goodman
Annettte Guiseppi-Elie
Mark Mummert
William Dreibelbis
Thomas Fidler
John Stephenson
Guests
Present:
Bill Cluck
Chuck Campbell
Call
to order
The meeting
was called to order at 9:30 a.m. William G. Dreibelbis was introduced as a new
board member. Kevin Reinert was nominated
as Board Chairperson. The motion was
seconded, and the vote was affirmative. Tim Rea was nominated as Vice-Chair, the motion was seconded and
the vote affirmative. Tom Fidler stated
that there are two board positions yet to be filled. He expressed interest in having one of the positions possibly filled
by a representative of a county health department or planning agency.
The
CSSAB meeting dates for the year 2002 were set as, April 9, August 22, and December
5. The meeting minutes of March 26,
2001 were reviewed, corrected and approved.
Tom
Fidler and David Crownover made a presentation on DEP’s Environmental Futures
Program and explained how it is incorporated into the DEP’s planning process.
Tom asked the Board to give any comments to
him on the process.
Kevin Reinert reported on the activities of the Indoor Air
Quality (IAQ) Team. The members of the
team are; Craig Robertson, Ronald Buchanan, Annette Guiseppi-Elie, Kevin Reinert,
William Dreibelbis, Chuck Campbell, Bruce Fishman, Tom Fidler, Randy Roush,
Sam Fang, and Bob Gadinski. Kevin explained
that the process for screening potential indoor air quality concerns targeted
contamination in both soils and groundwater, and the processes for each medium
are depicted on flowcharts (part of the meeting handouts). He stated that to the team’s surprise, after analyzing the data,
soil and not groundwater was the medium of greatest concern. After the presentation, Kevin asked for comments
at the meeting or they could be mailed to him. Ron Neufeld asked how situations where vapor
modeling is in conflict with actual indoor air conditions would be managed.
He explained the challenge of gaining representative
results from indoor air sampling because of interferences from other indoor
sources. For this reason, soil gas sampling
and modeling of indoor air concerns from sources outside the building, may be
the preferred approach. When questioned if false positives or negatives were a problem with
sampling, Kevin stated that false positives were an issue with indoor air sampling.
Mark Urbassik asked if the team had
considered the combined exposure of soil and groundwater on receptors. Kevin
explained that the team had not considered such combined effects as of that
date. Mark Mummert asked whether someone going through this new process
now will receive liability relief. Tom
Fidler stated that the process will be used as part of the Statewide Health
Standard, but that it will be first proposed for draft guidance and then public
comment considered before it becomes final guidance to be used as part of the
Act 2 program. If the screening process
indicates the need for sampling, and sample results exceed the recommended IAQ
MSCs, mitigation or further site specific analysis would be required. Based upon the demonstrated results of mitigation
or further analysis, liability relief would be available. Kevin stated that odors were considered in the
process but it was determined that the proposed process values were below the
published odor thresholds in almost all cases. Kevin presented the issue of rounding the values of MSC (soil) to
two significant digits. As an example,
the IAQ team rounded the MSC (soil) value from 0.37 to 0.4, where the Statewide
Health MSC for soil is 0.5. Further
he requested the board consider that due to accuracies, if 0.4 is really any
different than 0.5. If so, benzene would be treated differently in the proposed
process. The board discussion supported
the process of rounding, and specifically in the case of benzene, rounding to
0.4. Tom expressed interest in applying
this new process to some current cases being reviewed under Act 2. Kevin encouraged this. He stated that the team
will be issuing a report of its findings in the winter of 2002.
Bill
Pounds gave a brief update on proposed Safe Fill Regulations. He stated that the regulations would likely
be proposed in the January-February 2002 timeframe.
Tom Fidler introduced the presentation of the revised surface
water interface guidance. Mark Urbassik
asked what were the major differences in what the PENTOXSD model considers vs
what the previous Land Recycling Guidance considered. Lee McDonald, DEP stated that the basic differences
are that PENTOXSD considers stream mixing and background conditions.
The
meeting was adjourned.