south australia’s environment protection authority ... · south-eastern edwardstown community...
TRANSCRIPT
South Australia’s Environment Protection Authority
Southeastern Edwardstown Community Working Group
Tuesday 10 May 2016
Welcome and introductions
Rachel Hudson
Principal Adviser, Community Engagement
Agenda
1. Welcome and introductions
2. Review of last meeting notes
3. Design and scope of new works
4. How to improve air quality in your home
5. Questions
6. Next meeting proposed for Tuesday 12 July 2016
2. Review of past meeting notes
The environmental assessment program determined whether vapour intrusion was likely to be occurring at properties within the assessment area.
The highest predicted indoor air level was reported as 3.4
µg/m3 (micrograms of TCE per cubic metre of indoor air).
This falls at the lower end of the ‘Investigation’ response
range.
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TCE indoor air level response range
Indoor Air Level: Indoor Air Level: Indoor Air Level: Indoor Air Level: Indoor Air Level:
Above detection – Nothing detected 2 - <20 µg/m3 20 - <200 µg/m3 200+ µg/m3
less than 2 µg/m3
No immediate There may be a There is a health Safe Safe health concerns health risk risk
2. Review of past meeting notes
The report found that soil vapour contamination is likely to be coming from contaminated groundwater.
The soil vapour results identified another potential source
area, located to the north-east of the EPA assessment
area at the Railway Tce/Adelaide Tce boundary.
The full nature and extent of the groundwater plume and
soil vapour contamination was not able to be delineated
by the results from the last round of assessments.
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3. Design and scope of new works
Dale McGill
A/Principal Adviser, Site Contamination
I I I I I WOOD STREET I~
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T l CLIFFORD STREET
WOl3ELE"' Ttn.rACE
--rl III LINDSAY /.VENUE
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Figure 1: South-Eastern Edwardstown
Assessment Area
Residenttal Commercial. ndustry or vacant
Education Public instituton
$EVENfHAV::NUE
MJJSOHSTREET
ASCOT PARK
flf"TH A\/EhllE
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~ Parts 3rd R eserves
....EXtSting EPA
._.Ass•ssment Area • • • EPAA~s_~ssrrentJ..rea • ..Apri 2016
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3. Design and scope of new works
Twenty groundwater bores and
twenty soil vapour testing
bores are in the process of
being installed in Edwardstown
and Ascot Park.
Bores are being installed in the
west of the assessment area
across train line, and in the
north east to more accurately
define the potential source of
contamination.
South Australia's Environment Protection Authority
Figure 2: South-Eastern Edwardstown
Assessment Area
CIExis1ing EPA Assessment Area
• a • EPAAssessmentArea • ...April 2016
Exis1ing0 Groundwater Well
Proposed 0 Ground 1.vater \'./ell
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Figure 3: South-Eastern Edwardstown
Assessment Area
CIExisting EPA Assessment Area
• • • EPAAssessment Are::.i ....April 2016
Existing0 Soil Vapour Bore
Proposed 0 Soi Vapour Bore
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3. Design and scope of new works
Bore installation is
commencing this week and
continuing through until late
May 2016.
The next report, including
data, an updated conceptual
site model and revised risk
assessment is expected in late
June 2016.
4. SA Health
Dr Ian Delaere
Manager – Toxicology
5. Questions
What do the TCE predictions mean for pregnant women both
working or living in South Eastern Edwardstown (at the locations
where the predictions are highest?).
Any other questions?
Thank you and next meeting
Next meeting is proposed for Tuesday 12 July 2016, after the report has been submitted and reviewed by the EPA.