agenda public information session november 28, 2018 · tetrachloroethylene (pce) xx 1,1,1...

1

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