research and data management for this project was
TRANSCRIPT
1
Research and data management for this project was conducted
through DesignConnect at Cornell University. The team
working on this project included: Inna Kitaychik, Vidhee Garg,
Lucy Foma, and Marjaneh Mottaghi.
2
Table of Contents
Introduction 3
Background 3
Research Question 5
Methods 5
Data/Sources 5
Data Preparation/Management 6
Limitations 6
Analysis: Water Contamination 9
Water Contamination Maps per Chemical
1,1 – Dichloroethane, Cis -1,2 – Dichloroethene, Trans-1,2– Dichlorethene, Tetrachloroethylene 10
1,1,1 – Trichloroethane, Trichloroethene, Vinyl chloride, Carbon Tetrachloride 12
Water Contamination Maps per Chemical using Graduated Symbols
1,1 – Dichloroethane, Cis -1,2 – Dichloroethene, Trans-1,2-Dichlorethene, Tetrachloroethylene 11
1,1,1 – Trichloroethane, Trichloroethene, Vinyl chloride, Carbon Tetrachloride 13
Analysis: Water Cross Contamination, Watershed/Elevation, Sewer Mains 14
Water Cross Contamination Map 15
Watershed/Elevation Map 16
Cross Contamination- Elevation QQ plots 17
Sewer Mains Map 18
Analysis: Soil Vapor/Air Contamination, Soil Vapor/ Air Cross Contamination 19
Contamination Maps per Contaminant
1_1_1 Trichloroethane Soil Vapor/ Air Contamination Maps 20
Trichloroethene Soil Vapor/ Air Contamination Maps 21
Tetrachloroethylene Soil Vapor/ Air Contamination Maps 22
Soil Vapor/ Air Cross Contamination Map 23
Analysis: Affected Populations/Schools 24
Population Map 25
Population of Children Map 26
Schools and Water Cross Contamination Map 27
Schools and Water Contamination over Threshold Map 28
Schools and Soil Vapor/Air Cross Contamination Map 29
Schools and Soil Vapor/Air Contamination over Threshold Map 30
Conclusion 31
Implications/Recommendations 31
Further Research 31
References 32
3
Introduction
Contamination on South Hill has been a source of concern for its residents since 1987 when
TCE, a known carcinogen, was first discovered on the Emerson site. Testing was done by the
Department of Environmental Conservation. Remediation efforts began in 1991 in order to begin
to remove contamination from the ground and bedrock. In 2004, it was discovered that despite
remediation efforts, TCE was still present in large quantities at the Emerson Site. The issue of
continued contamination featured in the New York State Assembly Committee on Environment
Conservation hearing report (2005/2006) and analysis was done in a ground water hydrology
class at Cornell in 2006.
Members of the Ithaca Community Advisory Group took it upon themselves to collect the
reports issued by DEC to individual households in South Hill to compile them into a
comprehensive report. This data ranges from 2004 to 2008. Once collected this data was
presented and is still housed at Ithaca-ship.org. Despite remediation efforts, it is clear that
contamination is still present on South Hill, Ithaca.
Background
Contamination Source Sites
South Hill has a history of industrial activity. Starting in 1906 to present day, industry involving
chemical solvents continues to be present in Ithaca, and especially South Hill. Below are the
three main areas of industry and sources of contamination in South Hill, Ithaca: National Cash
Registry (NCR), Emerson Power Transmission Facility, and Therm.
4
The National Cash Registry Company bought the Morse Chain Company, a company which built
the first large factory in Ithaca in 1906, after it had merged with Allen-Wales. In 1957, a new
plant was constructed on South Hill. This plant was taken over by Axiohm and was closed
around 2000.1 It is now known as the South Hill business campus.
The Emerson Power Transmission Facility originated as an industrial production facility for the
Borg-Warner Corporation. It switched owners in 1929 when Emerson purchased the facility.2 It
is currently an active manufacturer of steel roller chain.
Therm established a new facility in 1935 and is still active. Therm creates turbine components to
all major Original Equipment Manufacturers (OEMs) and specializes in the production of LP and
HP blades and vanes for aerospace and industrial gas turbines.3
Contaminants
Although many chemicals were analyzed at the testing sites, the following chemicals are
considered to be the most dangerous and were therefore chosen by the Ithaca Community
Advisory Board to be studied as part of the Design Connect Contamination Map Project.
Contaminant Type Carcinogen
1,1 – Dichloroethane
Industrial solvent, Volatile
organic compound
No
Cis -1,2 – Dichloroethene
Industrial solvent, Volatile
organic compound
No
Trans-1,2 – Dichlorethene
Industrial solvent, Volatile
organic compound
Not available
Tetrachloroethylene
Industrial solvent, Volatile
organic compound
Yes
1,1,1 – Trichloroethane
Industrial solvent, Volatile
organic compound
No
Trichloroethene (TCE)
Industrial solvent, Volatile
organic compound
Yes
Vinyl chloride
Industrial solvent, Volatile
organic compound Yes
Carbon Tetrachloride
Industrial solvent, Volatile
organic compound
Yes
http://www.atsdr.cdc.gov
1 Ithaca-ship.org/history.htm
2 Ithaca-ship.org/history.htm
3 Therm.com
5
Prior Research
Research exists pointing to the idea that contaminants travel through sewer lines and other
manmade infrastructure such as pipes and wells, and through geological features such as
fractures and bedding planes (Ithaca-ship.org).
Research Question
This report seeks to answer the following questions:
How contaminants can potentially be traveling:
o Do they travel through sewer lines?
o Do they travel as a result of downhill runoff?
What are some of the potentially effected populations:
o Are children at high risk in South Hill and surrounding area?
Methods
Data Sources
Data Source
Infrastructure shapefiles:
Tompkins Country parcels; buildings; roads; water
Geographic shapefiles:
DEMs
Cornell University CUGIR
Census block group shapefiles TIGER
Block Group Data for 2010 Tompkins Country
Census Tracts 1, 2, 8, 10, 11, 12, 13:
Population, Age (0-19 year)
United States 2010 Census- Summary
File 14
4 Group Quarters Population by Sex, Age, and Type of Group Quarters: 2010, 2010 Census Summary File 1
6
Contamination Points Roux Associates: Site Evaluation
Report5
EA Engineering P.C: Appendix G6
EA Engineering P.C: Supplemental VI
Summary Report7
Geologic: First Quarter 2011 Post
Remediation Monitoring8
WSP Environment & Energy:
Supplemental Pre-Design Investigation
Fire Water Reservoir9
WSP Environment & Energy:
Maintenance of Monitoring Report #410
Data Preparation/Management
The data was prepared in the following way:
1. Data Inputting:
a. Jpeg maps from each report which showed the locations of testing areas were
isolated
b. Images of South Hill maps were input into GIS and georeferenced the images
according to building contours or street intersections
c. New point shapefiles were created, (point and polyline) according to the
georeferenced maps:
i. Contamination testing sites
ii. Sewer Mains, where available
d. An attribute tables was created for all points to including: location, date tested,
identification as labeled on georeferenced map, units, and values of contamination
for each of the eight contaminants.
e. The data was then able to be queried out by units which delineated three kinds of
contaminated matter: water, soil vapor/air, and soil. The most data was available
for water.
f. Thresholds were located, when possible, for each contaminant. Points with values
above that threshold were queried out. (The threshold for water was converted
from PPM to Ug/L).
5 Site Evaluation Report. Table 1: CVOCs in manhole and soil vapor samples. Ithaca, New York: Roux Associates, 2008. 6 Appendix G: Supplemental Soil Vapor Investigation Summary Report- Addendum: Off-Site Former Axiohm Facility
(C75501A). Ithaca, New York: EA Engineering P.C. and Its Affiliates EA Science and Technology, May 2010. 7 Supplemental VI Summary Report: Off-Site Former Axiohm Facility (C755012A). Ithaca, New York: EA Engineering P.C. and
Its Affiliates EA Science and Technology, April 2011. 8 South Hill Business Campus, First Quarter 2011 Post Remediation Monitoring. New York: Geologic, NY, Inc., 2011. 9 Supplemental Pre-Design Investigation Fire Water Reservoir, Emerson Power Transmission Facility, Site. No. 7-55-010. Ithaca,
New York: WSP Environment & Energy, June 2011. 10
Maintenance of Monitering Report #4, Dual Phase Extraction System Operation July to December 2010, Emerson Power
Transmission, Site No. 7-55-010. Ithaca, New York: WSP Environment & Energy, August 2011.
7
2. Creation of elevation contours and watershed using Spatial Analyst Tools
a. DEMs of East and West Ithaca were imported. Flow direction and flow
accumulation were then created in GIS. Flow direction and a pour point were then
designated to create a watershed.
b. Contours were also created with the DEMs
3. Sewer Main service areas were created for the contamination points over threshold as
well as for Ithaca schools by using the roads shapefile and the Network Analysis tool.
4. Network analysis was conducted to determine the actual distance traveled by
contaminants through sewer mains
Limitations
CUGIR
Limitations in CUGIR data were most apparent in the DEMs of elevation downloaded for west
and east Ithaca. Although both DEMs are in the same projection, when merged, the files do not
align properly. Thereafter, the direction of flow does not match on both sides and as a result, the
flow accumulation only connects at one point along the borders, which makes analysis on
contamination of flow and creation of a true watershed difficult. This error in base data is
particularly unfortunate in this map since a number of contaminants appear to not fall within the
watershed.
In addition, there are no shapefiles or maps of sewer lines, as this information is not disseminated
to the public by the city of Ithaca (for reasons associated with terrorism). The information
available was limited to South Hill. Therefore, analysis was done based on the roads shapefile as
it most closely aligns with the sewer shapefiles. This is not 100% accurate but is fairly close
given the limitation of information.
ASTDR and DOH
The Agency for Toxic Substances and Disease Registry has set standards thresholds in water for
7 of 8 of the contaminants. There are no standard threshold for 1,1 – Dichloroethane. The same
agency does not provide most of the thresholds for these contaminants in soil vapor/air.
Thresholds, in general, span a wide range of values depending on the state. The Department of
Health of New York State was deferred to for values for air/vapor thresholds where ASTDR did
not provide values. In total, five thresholds are missing.
8
The Threshold used for this report:
Contaminant Water Threshold Value
(ASTDR)
http://www.atsdr.cdc.gov/
Soil Vapor/Air Threshold Value
http://ship.no-ip.org
1,1 –
Dichloroethane
No data No data
Cis -1,2 –
Dichloroethene
70 ug/L No data
Trans-1,2-
Dichlorethene
100 ug L No data
Tetrachloroethene 5 ug/L No data
1_1_1
Trichloroethane
200 ug/L 100 ug/cu.m (DOH)
Trichloroethene
(TCE)
5 ug/L 5 ug/cu.m (DOH)
Vinyl chloride 2 ug/L 77 ug/cu.m (ASTDR)
Carbon
tetrachloride
5 ug/L 271 ug/cu.m (ASTDR)
http://www.atsdr.cdc.gov
Contamination Reports
Gaps in Data: Not all of the reports from the houses on south hill were collected since not
everyone was willing to disclose the contamination status of their homes.
Another limitation is small scope of testing, even within South Hill. The reports focused on
targeted areas which have histories of contaminations due to previously sited industrial facilities.
Therefore most of the data is clustered in two areas.. For example, there are no test sites north
west of the site. In addition, no studies have been done to determine a buffer of contained
contamination.
The data created for this analysis is limited due to the lack of time and people for data imputing.
Only the most recent available data was input, although data from previous years is available in
PDF form. Data from previous mitigations was not included in this data set. Therefore, analysis
cannot be conducted on changes in contamination over time.
Census Data
The smallest unit of measurement in the census is block groups. Therefore it is very difficult to
do any analysis on a neighborhood level unless parcel data is available. No parcel data was
available for population and age in Tompkins Country.
In addition, the data provided on the population of children may be flawed. According to the
2010 census data, there are very few children living in the census block groups surrounding
9
South Hill. It is difficult to imagine that there are only 21 children living around South Hill out
of a population of 5124.
Census
Tract
Block Group
#
Total
Population
Population of
Children under 18
1 1 116 4
2 1 519 7
2 2 138 0
2 3 0 0
8 2 0 0
8 1 109 5
10 2 0 0
10 3 14 1
10 1 0 0
11 3 915 0
11 1 0 0
11 2 58 0
12 1 3255 4
13 1 0 0
13 4 0 0
13 5 0 0
13 2 0 0
13 3 0 0
Total:
5124 21
http://www.census.gov/
Water Contamination Maps, Point and Graduated Symbol
The contamination maps are shown to designate specific contamination sites. The contamination
maps with graduate symbols are additional maps which also show the level of contamination in
each site.
The data shows that water contamination is still present around the factories, most notably, the
Emerson Power Transmission Facility. Six of the eight contaminants are present in the water
beyond threshold. All of the contaminants are present in the water to some degree with one
exception. As points get further away from the Emerson the level of contamination significantly
decreases. There is no significant movement of contaminants north, away from the sites.
10
Observations on chemicals as demonstrated my maps on the following pages:
1,1 – Dichloroethane
There is no specified threshold for this contaminant. Contamination above zero is present.
Cis -1,2 – Dichloroethene
There are extremely high cases of Cis -1,2 – Dichloroethene contamination very well beyond
threshold levels at Emerson and NRC.
Trans-1,2 – Dichlorethene
There are cases of Trans-1,2-Dichlorethene contamination beyond threshold levels at Emerson.
Tetrachloroethylene
There is no contamination of Tetrachloroethylene at the NRC.
1,1,1–Trichloroethane
There is one point of 1,1,1–Trichloroethane water contamination over threshold. It is the point
furthest away from NRC. This could be due to the effectiveness of mitigation measures on site.
Trichloroethene (TCE)
TCE is extremely present in the water at both sites in quantities astronomically beyond threshold.
Vinyl chloride
Vinyl Chloride is extremely present in the water at both sites in quantities beyond threshold.
Carbon Tetrachloride
There is no water contamination of Carbon Tetrachloride on South Hill.
15
Water Cross Contamination
It is clear that the sources of most water contamination concentration are still closest to Emerson,
at the very end of South Cayuga Street. This is particularly concerning since this location has
proven to impact the indoor air in surrounding structures in previous tests conducted by the
NYSDOH and it is reasonable to believe that since contaminant levels are still high, the location
continues to affect its neighborhood.11
The remediation efforts in and around the National Cash Registry seem to be effective as
concentration around the site is significantly less than further west of the site. This is not an
indication that the contaminants on site are not beyond threshold, but simply that many
contaminants have been eradicated through remediation efforts. Half of the points are
contaminated by three to six contaminants.
Watershed Elevation Map Analysis
The Watershed map shows the direction of runoff. It shows how elevation is instrumental in
moving the contaminants. It is clear for both the dissemination of both soil vapor/ air and water
contaminants that they are traveling downhill from the contamination source sites.
That there is a point with six contaminants further away from NCR, as seen in the Cross
Contamination in Water Map, potentially supports that runoff is carrying contaminants in the
water downhill.
This is supported by the QQplots on page 17 which show the relationship between elevation and
number of contaminants. The contaminants are concentrated at the contamination sources and
then exist in smaller concentrations as the elevation decreases.
Sewer Map Analysis
That sewer mains are a means for transporting contaminants was a conclusion stipulated in the
Roux Report of the Emerson Site (Roux Associates, 48). This map shows how contamination,
specifically TCE, travels along the sewer lines. TCE contamination can be seen along the sewer
main in the area between Emerson and NRC. Since this location is not downhill from the
contaminated NRC or Emerson site, it can be logically concluded that it reached its destination
through the sewer main originating at the Therm site.
11
http://www.dec.ny.gov/chemical/8669.html
18
Water Cross Contamination and Elevation QQPlot
Soil Vapor/ Air Cross Contamination and Elevation QQPlot
Emerson
NRC
Emerson
Therm
20
Analysis: Soil Vapor/ Air Contamination
1,1,1 Trichloroethane Soil Vapor/ Air Contamination Maps
There is no 1,1,1 Trichloroethane contamination above threshold; although levels of
contamination are approaching the threshold in soil vapor and sub slab air at both the NRC and
Therm sites. It is also clear that the contaminant is moving along the sewer lines as it is present
in smaller amount in the adjoining neighborhood and along the road served by the sewer mains.
It is clear that once 1,1,1 Trichloroethane reaches open air it volatilizes and disburses since it was
not detected in outdoor air measurements.
Trichloroethene (TCE) Soil Vapor/ Air Contamination Maps
Trichloroethene (TCE) is extremely present soil vapor at the Therm site and along the sewer
main in the area between NRC and Emerson. It is also extremely present in the South Hill
neighborhood north of the Therm site in the sub slab air. There are some small amounts of TCE
in the basement air in the South Hill neighborhood and almost no TCE in outdoor air with one
exception close to the Therm site.
Once TCE hits outdoor air, it also seems to volatilize.
Tetrachloroethylene Soil Vapor/ Air Contamination Maps
Tetrachloroethylene is present is extremely high quantities in soil vapor in the South Hill
neighborhood as well as in quantities below threshold in the sub slab air in the same area. As this
contaminant is a carcinogen the presence of this contamination in such large quantities in a
residential neighborhood is particularly concerning.
Once Tetrachloroethylene hits outdoor air, it also seems to volatilize except at one point as can
be seen in the Outdoor Air map on page 22. The contamination could potentially have traveled
downhill through the sewer main.
*There was no indoor air contamination for the NRC site (Geologic, Summary Table 4)
Soil Vapor/ Air Cross Contamination
From the Cross Contamination Vapor/Air map it seems that contamination follows an erratic
pattern. For example, there a point with 6 contaminants right next to a point with 1-2
contaminants. However, according to the elevation and soil cross contamination QQ plot,
elevation and number of contaminants seems to be related, with higher number of contaminants
at higher elevation. This shows that contamination is disseminating downhill and that
concentrations downhill are lower than those at the source. The Kriging map of South Hill
supports this by showing that areas in low elevation have less contamination than those in higher
areas.
25
Affected Populations/ Areas
Population in general
The Population map on page 25 is meant to give insight to the number of people affected by the
South Hill contamination. A 1000ft., 2000ft. and 3000ft. service area was created based on sewer
mains merged with the roads shapefile since sewer mains usually closely follow roads since no
sewer main information existed for the entire city of Ithaca. Population was downloaded for
census block groups and then these groups were clipped to each service area. The areas
designated by a star are more representative of population since these census blocks were
considerably small and fit within the 3000 ft. service area zone. Therefore, approximately a
population of 210-300 is directly affected by the contamination.12
Children
According to census data, there are less than 10 children living in the census tracts surrounding
South Hill and practically none in the 1000 ft. service area of the contamination. This may or
may not be true based on possible inaccuracies in census data. However, to better gage whether
the contamination would affect children, a service area of the schools near South Hill served by
sewer mains/roads was conducted.
Schools
The Distance from Schools to Water Cross Contamination Map shows that a concentration of
areas with 6 or more contaminants is within the 3000 ft. service area of both T-S-T Community
School and South Hill School. Cross contamination at the NRC site is not within the service
areas of any of the schools near South Hill. The same pattern can be seen for water
contamination over threshold, with the exception that there is one point of contamination over
threshold within the 2000ft service area of South Hill School.
South Hill School is at most risk for being affected by soil vapor/ air contamination. The
Distance from Schools to Soil Vapor Map shows that there is a point with 6 contaminants within
the 2000 ft. service area of the school and that one point with 5 contaminants and five points
with 4 contaminants are within the 1000ft. service area of South Hill School. The Distance from
Schools to Soil Vapor/ Air over Threshold map shows that there are three points with
contamination over threshold within the 1000ft. service area of South Hill School and four points
of contamination over threshold within the 2000 ft. service area. There is one point of
contamination over threshold within the 3000 ft. service area.
12
Calculation adjustments: The darker red areas are representative of much larger block groups—calculations in
these area were done by dividing the census block population by the area covered by the 3000ft. service area;
adjustments were made taking into consideration that the left. side of the 1000 ft. service area is mostly industrial.
30
Conclusion
Elevation and sewer lines play a major role in the transportation of contaminants in South Hill.
Based on the Watershed and Direction of Flow of Contaminants map, it is clear that
contamination flows down and decreases with elevation. However, there is harder evidence to
show that contamination actually flows through the sewer mains as can be seen in the Sewer
Mains and TCE Contamination Flow Map.
The contamination is affecting nearby populations as high levels of cross contamination and
levels over threshold can be found in the neighborhood adjacent and downhill of Therm.
There are extremely high levels of Trichloroethene (TCE), Vinyl Chloride and Cis -1,2 –
Dichloroethene still present in the water at the Emerson site. It is also very possible that the
sewer mains are carrying this contamination into the adjacent neighborhood.
Levels of Trichloroethene (TCE) and Tetrachloroethylene are particularly high in soil vapor/ air.
This is very concerning considering that these contaminants were found in residential
neighborhoods and are known carcinogens.
Although census data finds the population of children in South Hill to be very low, it is
reasonable to assume that a number of children spend time in South Hill School which is
extremely close to sites with cross contamination and contamination over threshold.
Implications/Recommendations
Further research on the location and values of contamination in South Hill would better serve to
give a wider picture of the dispersion of contamination in the area. Water contamination testing
can be done in the residential portion of south hill.
Another round of mitigation of Trichloroethene (TCE), Tetrachloroethylene, and Vinyl Chloride
is in order. It is extremely necessarily that this be conducted as these contaminants are still
present in large quantities on South Hill and have been designated as carcinogens.
Further Research
An analysis of fractures and bedding planes on South Hill may be useful to explain why some
points, right next to each other, differ in levels of cross contamination and threshold levels.
Further scientific studies are called for to determine the accurate threshold levels for
contamination as well as to determine which contaminants are, in fact, carcinogens.
Analysis can be conducted for cross contamination and points past threshold values for soil. Data
for soil contamination is available but was not analyzed in this report.
31
References
Cornell University Geospacial Information Repository (CUGIR). Cornell University. 2011.
Accessed September 2011. < http://cugir.mannlib.cornell.edu/>.
Department of Environmental Conservation. Emerson Power Transmission Environmental
Investigation. DEC. Syracuse, NY, 2011. Accessed December 2011.
<http://www.dec.ny.gov/chemical/8669.html>.
EA Engineering P.C. Appendix G: Supplemental Soil Vapor Investigation Summary Report-
Addendum: Off-Site Former Axiohm Facility (C75501A). Ithaca, New York: EA
Engineering P.C. and Its Affiliates EA Science and Technology, May 2010.
Figure 1: Historical Soil Vapor Sampling Locations and South Hill Sewer Lines
Table 1: Summary of Volatile Organic Compounds in Soil Vapor Samples
EA Science and Technology. Supplemental VI Summary Report: Off-Site Former Axiohm
Facility (C755012A). Ithaca, New York: EA Engineering P.C. and Its Affiliates EA
Science and Technology, April 2011.
Table 2: Vapor Intrusion Analytical Data
Figure 6A: Vapor Intrusion and Soil Vapor Sampling Results
Figure 6B: Vapor Intrusion and Soil Vapor Sampling Results
Geologic, Inc.South Hill Business Campus, First Quarter 2011 Post Remediation Monitoring.
New York: Geologic, NY, Inc., 2011.
Tables 1: 1st Quarter 2011: Groundwater Sampling Field Observations
Table 2: 1st Quarter 2011: Summary of March 2011 Groundwater Analytical Results,
VOCs, COD, TOC
Table 3: Overburden Wells: Summary of Historic Ground Water VOC Analytical Results
Pre- and Post-ISCO Implementation
Table 4: Summary of Pre- and Post- Mitigation Air Sample Analysis Results
Table 5: Summary of BRW-1S Analytical Results
Post-Remediation Monitering Well Locations, South Hill Business Campus, 950 Danby
Road, Ithaca, New York. Drawing Number 2.
Air Sample Locations, South Hill Business Campus, 950 Danby Road, Ithcac, New York.
Drawing Number 3.
Overburden Groundwater Flow for 02/23/2011, South Hill Business Campus, 950 Danby
Road, Ithaca, New York. Drawing Number 4.
Bedrock Groundwater Flow for 02/23/2011, South Hill Business Campus, 950 Danby
Road, Ithaca, New York. Drawing Number 5.
Groundwater Chlorinated VOC Concentrations, South Hill Business Campus, 950 Danby
Road, Ithaca, New York. Drawing Number 6.
Roux Associates. Site Evaluation Report. Table 1: CVOCs in manhole and soil vapor samples.
Ithaca, New York: Roux Associates, 2008.
Emerson Power Transmission Facility and Surrounding Areas: Historical Sanitary
Sewers. Plate 1.
32
Emerson Power Transmission Facility and Surrounding Areas: Historical Sanitary
Sewers and Soil Vapor and Manhole Sample Locations. Plate 1A.
Therm.com. Therm. 2011. Accessed December 2011. <Therm.com>.
Weber, Timothy. Ithaca South Hill Industrial Pollution: History. Ithaca-Ship.Org. 2009.
Accessed November 2011. < http://www.ithaca-ship.org/history.htm>.
WSP. Maintenance of Monitering Report #4, Dual Phase Extraction System Operation July to
December 2010, Emerson Power Transmission, Site No. 7-55-010. Ithaca, New York:
WSP Environment & Energy, August 2011.
WSP. Supplemental Pre-Design Investigation Fire Water Reservoir, Emerson Power
Transmission Facility, Site. No. 7-55-010. Ithaca, New York: WSP Environment &
Energy, June 2011.
Figure 5: Fire Water Reservoir, Existing Pipe Investigation
Figure 6: Fire Water Reservoir, Pre-Design Investigation Results
Figure 7: Fire Water Reservoir: Existing Pipe Investigation
Figure 8: Fire Water Reservoir: Existing Pipe Investigation: Detailed Plan View
Table 1: Reservoir Wall Seepage- Groundwater Results
Table 2: Sediment and Water Characterization Results
Table 3: Horizontal and Monitoring Points- Groundwater Results
Table 4: Trench Samples- Groundwater Results
Table 5: Test Pits- Soil Results
Table 7: Test Pit Seepage- Water Results
Table 8: Groundwater Sampling Results of New Wells
Table 9: Rock Core Grab Sample Results
U.S. Department of Health and Human Services. Agency for Toxic Substances and Disease
Registry (ATSDR).Atlanta, Georgia, 2011. Accessed on December 2011.
<http://www.atsdr.cdc.gov/>.
United States Census Bureau. 2010 Census Bureau. TIGER/Line Shapefiles. US Census Bureau,
2010. Accessed September 2011.
<http://www.census.gov/geo/www/tiger/tgrshp2010/tgrshp2010.html>.
United States Census Bureau. Group Quarters Population by Sex, Age, and Type of Group
Quarters: 2010, 2010 Census Summary File 1. US Government, 2011. Accessed
December 2011. < http://www.census.gov/>.