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Agenda
Public Information Session
November 28, 2018
5:30 to 6:45 OPEN HOUSE
7:00 to 7:45 PRESENTATIONS
7:50 to 9:00 QUESTIONS
9:00 to 10:00 OPEN HOUSE RESUMES
2
Agenda
Public Information Session
November 28, 2018
Welcome Mayor Barnett
Rafael Gonzalez, EPA Public Affairs
Specialist
Jose Cisneros, EPA Branch Chief
Amphenol Site
Overview Carolyn Bury, EPA Project Manager
ATSDR Role Motria Caudill, ATSDR Toxicologist
Questions
U.S. Environmental Protection Agency
Overview of Corrective Action Work
Vapor Intrusion Investigation
Former Amphenol Site
Public Information Session
Franklin, IN
November 28, 2018
3
4
Former Amphenol site in Franklin, IN
4
Study
Area
Former
Amphenol
site
.FRANKLIN
N
A
PRESENTATION OVERVIEW
Site operational history
Regulatory context
Current Investigation
Future Corrective
Action work
Bendix identifies
self as TSD
FPP Generator
RCRA 3008(h)
jurisdiction
1985
Letter from
Indiana
Enhance
Pump and
Treat
Source
Control
1998
Order
1990
Order
Investigations
Pump
and
Treat System
Release of
Solvents into
Sewers
Biennial
Monitoring
Vapor Intrusion Investigation and Beyond
2018
2019
Vapor Intrusion
Investigation
Indoor Air
Remediation
On-Site
Investigation
Secondary
and Primary
Source
Remediation
A long history of industrial operations, much of which occurred
prior to modern environmental practices, left a legacy of
contamination at sites across the country.
Corrective Action Sites
7
8
Prior to 1983 - Solvents dumped
and VOCs were releasedPump and Treat Remedy Building
Inside the pump and treat
system shed 9
1994 - Remedy Selection: Groundwater
Pump and Treat System installed
1995 – 2010 – System enhanced which
operates today
What are VOCs?
• Volatile organic compounds emit gases from
solid or liquid.
• Industrial degreasing solvents (TCE and PCE)
• VOCs are widely used as ingredients in
household products:
Paints, varnishes, wax, vinyl, hobby glue all
contain organic solvents
11
What are Health Concerns with VOC Exposure?
Vapor intrusion of VOCs above safe levels into buildings is a health concern of the US EPA and other agencies.
Short-term intensive exposure:
• Eye, nose and throat irritation
• Headaches, loss of coordination and nausea
Long-term exposure at unsafe levels:
• May cause damage to liver, kidney and central nervous system
• Some VOCs are suspected or known to cause cancer in humans
12
2018 Vapor Intrusion Investigationin Neighborhood
1996 Risk Evaluation concluded no indoor air risk
(based on modeling, no indoor air testing)
New guidance and science on VOC exposure
EPA investigation launched – does residual contamination in the neighborhood cause vapor intrusion?
13
“Starting from Scratch”Re-evaluating the former Amphenol Site
Vapor Intrusion Investigation
Follow VOCs from source via migration pathways to indoor air
14
Vapor IntrusionStudy Area
• Historic data
• Groundwater flow direction
• Sewershed flow direction
15
Former A phe ol
cili
P,ossib,l,e Vap,or Exp,,osure Pathways
Rek:xlse
to g ro u rd I ...... I _ ___.I ...... I _ ___.
surface
Aquifer
Primary Source Soi I Co nta mi nation
lnfi It ration of Pre: i pitat ion
Adve::t ion. Dispersion. and Diffusion
S lab-on-grade
Sewer Lateral
Basement
□□ □
)
_ljuctU3tirg t Water Table t
Crawl Space
□□
Sewer Lateral
I nfi It rat ion and Groundwater
Re::harge
( < --, i
Clean Groundwater
Plume with vapor-forming chemicals
envious ilt · ·1a a er.
G rou rdwater FICM'
Investigations in the Study Area
• Outdoor Air
• Groundwater
• Soil gas
• Sewer bedding gas
• Sewer VOC gas
• Indoor Air (expand Study Area based on results)
“Above or below a Screening Level”
What is a Screening Level?
What is elevated?
Whenever a measurement is made of
contamination in the environment, a
point of reference is needed to
interpret the result.
Screening Level
• Screening levels are much lower than the concentration at which health affects are expected.
• Conservative, low value, used for reference, not clean-up
• Calculated with many degrees of protection to produce the number.
• EPA calculates screening levels using a toxicity data about the chemicial
Plus assumptions about how people are exposed to the contaminant (different industrial vs residential)
• When above screening level, we look more closely at a Site and potential health risks from exposure.
• At Amphenol, for indoor air, we used IDEM Risk Based Closure Levels to make remedial decisions.
19
20
Outdoor Air Sampling
Groundwater treatment
system building and
• • em1ss1ons • pipe.
Outdoor Air Sampling
21
Sample location AA-3 South #1. The red arrow indicates the
location of the sample intake.
22
ft EA~ United States ~ Environmental Protection ~, Agency
AA-5 WEST #2 (Upwind) DATE 7/26/2018 TCE 0.43
AA-1 NORTH #1 (Northern Property Boundary)
DATE 7/26/2018 ALL voes NON-DETECT
All results in µg/m3
Unlisted compounds below laboratory detection limits.
DCA: DCE: PCE: TCA: TCE:
U.S.
Dichloroethane Dichloroethene
Tetrachloroethene Trichloroethane Trichloroethene
EPA TCE Residential Ambient : 0.48 Air Screening Level
AIR SAMPLING LOCATIONS FORMER AMPHENOL RFI/CMS; 980 HURRICANE ROAD, FRANKLIN, INDIANA
CJ
0
AA-3 SOUTH #1 DATE 7/26/2018
ALL voes NON-DETECT
AA-2 EAST#1 7/26/2018 7/26/2018
-...... ___ ___ 0.2 0.16
I I I I
I I
\ \ \
.,..
\ \
\ I \
r ,---~•=o=••~c=o=u•~r---- 0 l □□ O
D
D
□ C:=J /
5I RECOVERY WELL
O' 150' .6. ~ ALE Qr N
l:ZZI FORMER ol.MPHENOl FACILITY
-- STUDY AREA -- PROPERTY LINE (APPROXIW..TE) SANITARY SEWER -- STORM SEWER
--- 0/HPOWER -- GROUNOWA~CONTAM~TION
T ~~ POINT ~~Gs= BACKFILL • ~~:~NT
SEWER 8ACI( FILL...,_.O fUGKT-0f•WAY SOIL GAS
CONCENTRATION >100~3 - CONCENTRATION >10.00019-'ml
1111 CONCENTRATION >1,000l9'ffl3 - CONCENTRATION>100,000Wffl3
Results
• Fence line non-detect or below indoor air screening levels
• Emissions vent estimated at 8 pounds/year (low)
• Permits typically issued at 2,000 pounds to 10 tons/year - perspective
• Amphenol installed carbon filter system
• No VOC emissions currently
23
24
Sewer VOC Vapor Testing
Sewer VOC Vapor Testing
Elevated VOCs along Forsythe St and Hamilton
Street
Sanitary sewers
Above Indoor Air Screening Level
Indoor air testing
Indoor air with a focusing on sewer migration pathway
30 manholes in study area
+ 5 manholes in extended area plus re-sampling
25
26
Migration of soil vapors via sewer to indoor air
Downstream Manhole
ft EA~United States .._._.~ Environmental Protection ,, Agency
Solvents that were released into the sewers historically leaked into the
surrounding sewer trench soils.
27
t~ ' I'! I- -'RlP-IIROOUCTICN SER\110&8 ~ PREMIERAB
I ~
~ : lvznmtl
HVIPl.. .. 1tDMl"I
IIWI. N0. 11 DMl1
FIQURE 1 ST\JDY
AREA MAP
AORICUL 1\IUL FELD
FORMER AM'He«ll RFI/CMII 880 HURRICANE RQAll
FRANICI.IN, INDIANA
28TCE SEWER GAS
CROP PRODUCTION SERVICES _ _ PREMIER AG -/------- -- ·- \ .\
I .I '-·
I I '•, •,.
\ \
\\ ,.--- -•, \ / \ '\ (
I
/
I \
/ __ ... -
\
I I I
------,_1
l,!',•\'-29
D~ D [] (1~ - - {~3)
\ _ ... -··:::::::: .... -· ·
/ f I I I
>: ---------·· \.----/ I ,.,-~ 111!!5=1ii~a::511Ea!F-hrl Ti {2.7)
I I
RESIDENTIAL AREA
AGRICULTURAL FIELD
\ \. \ \ ,
~ /2 I c-·, \ , , I I j , \, __ -_/
Street ROW Soil
Above VI screening level
Indoor air testing
Sewer Bedding Soil
Secondary source area
29
SOIL GAS + SEWER BEDDINGTESTING
30
VOC Soil Gas and Sewer Bedding Gas Testing,-
□ □~ □
[1 !□ D ~ ffi
0
D
□
~ T-1A
\ \ \
D
\ \ \ \ \
0 MONITORING WEU • ABANDONED WELL 5l RECOVERY WELl
RESIDENTIAL HOME •l)flACtEl)GA,IV,QES 4 StE05N()TSHOffll
NON-RESIDENTIAL STRUCTURE
FORMER AMPHENOL FACILITY
O' 150'
~ .;;.;;J SCALE IN FEET
--- STUDYAREA --- PROPERTYLINE (APPROXIW.TE)
SANITARY SEWER --- STORM SEWER
.., ~~iG POINT • ~~;Gs:~~ BACKFILL • ~~L~!t~INT
SEWER BACK FILL AND RIGHT--Of•WAY SOIL GAS
... N
CONCENTRATION >100 i,g.1m3
11111 CONCENTRATION >1,000 l)gfm3
1111 CONCENTRATION >10.000IJ9fm3
11111 CONC8'1TRATION >100JX)Oµg.'m3
Groundwater VOC Testing
Contamination Plume Delineation
Above Screening Level
Indoor air testing
31
'
32
Groundwater Sampling ResultsPCE
ft EA~ United States ~ Environmental Protection ~, Agency GROUNDWATER PCE
FORMER AMPHENOL RFI/CMS; 980 HURRICANE ROAD, FRANKLIN , INDIANA
~DD 0 INDY STOR
FORMER AMPH NOL SITE
0 wtN-21
"
□ D~
D 0 D
0 ►
[1 I AS GJ □i□ LJ . .
8
0 D
~ D
~
CJ
D
CJ ROSS COURT
D
□ □ C:=J
D Cb t::7 ~ LENDALE ORM, <)
D D □ D cJ
□ □ GJ D cJ □ □ □
1, C=:Jc] D c:O<> . · Q
[] ~ 00 \ \ \
\ I \
00 _~ Q '-
D D()
D
\
33
Groundwater Sampling ResultsTCE
ft EA~ United States ~., Environmental Protection -. Agency
0
□
i5
~ ~ ~
~
~
FORMER AMPH NOL SITE l.rN-27 ..
GROUNDWATER TCE FORMER AMPHENOL RFI/CMS; 980 HURRICANE ROAD, FRANKLIN, INDIANA
D Cu t:J I LEliOALE DRIVE ~
D D D cJ
□ □ D cJ □ □ c0 G=J c'.J 0
Q <) ' [l SJ 0 0
~ Q D D ()
D
\
I I I I I I I I I I
7J I, I, I I I I I I
I I
I \
~
I\ \
\ I \ '-
Lines of Evidence:
Elevated: VOC Sanitary Sewer gas ROW Soil gasVOCs in Groundwater
Also: Near SiteNear other home with sub-slab VOC gas above Screening Levels
34
37 “Priority Homes” Indoor Air Testing
35
SUB-SLAB SAMPLE (SS1)1,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
BASEMENT AIR SAMPLE1,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
SEWER LATERAL SAMPLE1,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
AIR SAMPLE1,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
TITLE: SITE: DATE:
ANALYTICAL RESULTS ADDRESS OCTOBER 2018
BATHROOM AIR SAMPLE F11,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
BATHROOM AIR SAMPLE F21,1 dichloroethane XX1,2 dichloroethane XXCis 1,2 dichloroethene XXTrans 1,2 dichloroethene XXMethylene chloride XXTetrachloroethylene (PCE) XX1,1,1 trichloroethane XXTrichlorethylene (TCE) XXVinyl Chloride XXTotal VOCs XX
Notes:
All concentrations are shown in XX/XX
ND – not detected above laboratory detection limit
Bold and highlighted detection is above the XXX Specific Comparison Value.
Air Sampling
in and around
Homes -
36
Summa cannisters set for 24 hours
at each sampling point
INLET FILTER ON FLOW CONTROLLER --
GAUGE
!
FRONT VIEW OF GAUGE ON FLOW CONTROLLER
CANISTER VALVE
Sub-Slab Sampling PointVapor port in foundation
Hole is drilled, port installed
37
38
Sewer Pressure Test
Forces non-toxic citrus scent into the waste and drain pipes with a
slight pressure.
Ineffective vapor seals in plumbing systems in buildings (dry P-
Traps, breached toilet wax rings, cracked plumbing drain pipes,
loose fittings and gaskets, for example) are common
39
Response Actions:Immediate Measures to prevent exposure❖Install vapor mitigation system
elevated sub-slab or elevated indoor air VOC measurements
❖Sewer system sealing and repairs made
Risk Communication: ❖ Results discussed with homeowner and
tenant
Vapor Intrusion PathwayRisk Management
40
Residential Vapor Intrusion Mitigation System
• Sub-Slab Depressurization System
• Similar to radon gas mitigation system
• Negative pressure applied under building
• Prevents vapors from entering structure
i
Fan
-► . --:- .. ;. Contam -etion
C • •
' . ,. ~-'\ I t
Risk Management for the Vapor Intrusion Pathway
Response Actions: Address Sources
Remediation of VOC vapor sources:
Contaminated sewer bedding
Groundwater source control
Groundwater remedy enhancement
41
Indoor Air in Homes
• Access Please grant access• Privacy Act You don’t have to share results• All sampled homes will be re-sampled in
the winter.• Homes with elevated VOCs in the sewer
laterals but not indoor air will have pressure tests.
• Homes with elevated sub-slab VOCs, with or without elevated indoor air levels, will have mitigation systems installed.
42
Strategy – Former Amphenol Site
Next Steps
1. Ensure safety of residents through indoor air
testing, re-sample in winter
2. Remediate contaminated soil beneath sewers
3. Investigate and remediate off-site sources
+ On-site sources
4. Evaluate old and new remedies
5. Remedy selection
6. Monitor and re-evaluate the vapor intrusion
pathway
43
Thank you!
Questions after presentations
or at information stations
Next presenter, Motria Caudill, ATSDR
44
https://www.in.gov/idem/cleanups/2417.htm
https://www.in.gov/idem/cleanups/pages/franklin/map.htm
➢ Short term and stationary air monitoring
➢ 60 private wells sampled at Paris Estates
➢ Re-sampling indoor air at three EWA homes
➢ State Cleanup program correspondence
➢ VOCs in soil and GW at Hurricane Creek
➢ Elementary + Franklin College (not IDEM)
➢ City of Franklin data
➢ EWA data
T
- Oot. 5. 21118 _Cbu,__ ... _,_,.,~~
IDEM
mph nol ~ite
--0.0611 4
• r •- - .j .
.. - ..
_78Jft