EPA issued
Administrative
Order on Consent
to Amphenol
1990 and 1998
Groundwater
recovery system
installed, upgraded
& expanded
1995 I 1999 | 2010
Sub-slab
depressurization
1 system (SSDS) installed
in building on-site
In-situ chemical
oxidation treatment
of soil below former
plating room
Ambient air
sampling at
site perimeter
Public Meeting
with IDEM, ISDH
EPA announces
plan to review
site conditions
May 2011
July 2011
July 2018
August 2018
EPA Public
Information Session
at Franklin High School
(with ATSDR, IDEM)
November 2018
Soil gas sampling
October 2018
6 SSDS installed
in homes
Plumbing repairs
in 9 homes
Plumbing repairs
in 9 homes
37 homes sampled
for vapor intrusion
Off-site groundwater
sampled
Sewer gas
sampling
September 2018 - August 2019
September 2018
Indoor air tested at \\ Soil sampling to
building occupying )) support sewer
former Amphenol Site // remedy design
December 2018
February/March 2019
Off-site
groundwater
sampled
March 2019 I
2nd ambient air
study at site
perimeter
EPA Public
Information Session
(with ATSDR, IDEM)
Stakeholder
Information Plan
to public
Off-site
groundwater
sampled
May 2019
June 2019
July 2019
Sewer replacement
and soil
remedy completed
Street
re-paving
begins
I November 2019 I
5 new off-site
monitoring
wells installed
EPA begins	Pilot study of
stakeholders groundwater treatment
group calls	study begins
EPA Open House
at Franklin Library
Sewer/Soil
remedy begins
October 2019
August 2019
Construction Air Monitoring
Sewer re-lining
scheduled to begin
EPA hosts
Open House
Evaluation of
groundwater
treatment
Groundwater
remedy selection
On-site source
evaluation
Continued
re-testing of
air in homes
December 2019
Sewer remedy
monitoring
Public Meetings
Completion of
street and yard
restoration
Sewer Gas Sampling

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