POOLS PRAIRIE	EPA Region 7	06/08/2007
MISSOURI	City: Neosho
EPA ID# M00000958835	County: Newton
Other Names: Neosho Wells
SITE DESCRIPTION
The Pools Prairie site is adjacent to Neosho, Newton County, Missouri, in southwest Missouri.
The site was discovered in July 1994 by the Newton County Health Department (NCHD)
through a citizen's complaint of gasoline contamination in the family's well located west of
Highway 71 on Quince Road, southwest of the Neosho city limits. The complainant suspected
gasoline contamination was coming from a truck plaza, located immediately north of the
complainant's house.
Site Responsibility:
This site is being addressed through the actions of
potentially responsible parties, with oversight by
EPA and the Missouri Department of Natural
Resources.
NPL LISTING HISTORY
Proposed Date:
01/19/99
Final Date:
09/17/99
Deleted Date:

THREATS AND CONTAMINANTS

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In August 1994, subsequent sampling by NCHD and the Missouri Department of
Natural Resources (MDNR) at the truck plaza, the complainant's well, and at the
nearby residential wells, determined that there were no leaking tanks at the truck
plaza; however, eight volatile organic compounds (VOCs), including
trichloroethylene (TCE) and carbon tetrachloride were found in the 10 private
wells sampled. The most common VOC found in the wells and at the highest
concentrations was TCE. From August to December 1994, MDNR and NCHD
continued to sample and resample residential wells in the area of Highway 71 and
Quince Road. Additional residential wells have been found to contain TCE, with
some concentrations found above the TCE maximum contaminant level (MCL) of
5 parts micrograms/liter (ug/L) in the areas located along roads HH and TT and
near the intersection of Highways 71 and 60.
CLEANUP APPROACH
Response Action Status
r-s,.	Site Studies: Five potential source areas have been identified at the Pools Prairie
site for which adequate documentation exists to attribute the VOCs found in
	3 ground water to the site. To identify the sources of VOC ground water
contamination, EPA and MDNR first investigated the area south of Neosho and
later investigated the area known as the former Fort Crowder Military Reservation
(Camp Crowder). The five potential sources identified are: Source 1-Engine
Testing Area (ETA) at the Rocketdyne Test Site; Source 3-Contaminated Soil at
the CTA; Source 4-Saberliner Plant (Main Facility); and Source 5-Saberliner 900
Building.
These potential sources were identified because (1) soil samples have been
found at all five source areas to contain VOCs (primarily TCE) above background
levels; (2) TCE and other VOCs have been associated with sources through use of
the compounds as solvents and degreasers, through storage of the solvents at the
sites, and through evidence that TCE was deposited directly onto the ground and
deposited into storage lagoons with no liners or other Containment structures; (3)
VOCs have been found in shallow ground water at four of the five sources in
monitoring wells installed at those sources; and (4) degradation products of TCE,
such as vinyl chloride, (cis) 1,2-dichloroethylene [(cis) 1,2-DCE], and
1,1-dichloroethylene (1, 1-DCE) have also been found in ground water and/or soil
at the source areas.

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Site Facts: The comprehensive list of associated hazardous substances found at these source
areas includes: TCE, vinyl chloride, tetrachloroethene PCE), (cis) 1,2-DCE,
1,1-DCE, 1,1,2,2-tetrachloroethane (1,1,2,2-PCA), 1,1-dichloroethane (1,1 DC A),
1,1,1,-trichloroethane (1,1,1-TCA), 1,1,2-trichloroethane (1,1,2-TCA), methyl
isobutyl ketone (MIBK), carbon tetrachloride, carbon disulfide, chloroethane, and
chloroform. In addition to the VOCs, two pesticides, Aroclor 1260 and 1254, both
poly chlorinated biphenyls (PCBs), were found - in soil at Source 1 and Source 2,
and in the ground water at Source 2.

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ENVIRONMENTAL PROGRESS	
In 1998, EPA entered into an agreement with the U.S. Department of Defense,
Boeing North American, Sabreliner Corporation and Teledyne Industries to provide whole-house
water treatment units at approximately 37 residences. This action was completed in late 2000,
after affected residences had been connected to city water service.
In 1998, EPA entered into an agreement with the U.S. Department of Defense, the
Missouri Army National Guard, Boeing North American and Teledyne Industries to provide for
the construction of water mains and related connections to affected residences at the site. This
action was completed in late 2000, resulting in the installation of more than 15 miles of water
main and subsequent connection of 233 residences.
In 1998, EPA entered into an agreement with Teledyne Industries and Boeing North
American to provide for engineering controls and contaminant containment at the Components
Test Area, and to perform an engineering evaluation/cost analysis of cleanup alternatives at the
Components Test area. The engineering controls and contaminant containment construction was
completed in 1999. From startup through the summer of 2002, approximately 310,000 gallons of
contaminated groundwater was extracted and treated, resulting in an estimated 1,200 pounds of
volatile organic compounds removal. The engineering evaluation/cost analysis for the
Components Test Area was completed in March 2001, recommending excavation and
landfarming of contaminated soils, and passive soil vapor extraction from adjacent soils. In
2002, EPA entered into an agreement with TDY Industries (f.k.a. Teledyne Industries), Boeing
North American, and the U.S. Department of Defense to implement the work outlined in the
engineering evaluation/cost analysis. In 2003, excavation and landfarming activities
commenced. As of December 2005, all excavation and landfarming actions have been
completed, and have included the following:
1)	Approximately 13,900 cubic yards of VOC-impacted soils in the Soil Treatment Area
were aerated, primarily using a tractor-drawn 40-inch Rome disc.
2)	Performance verification soil samples were collected from treated material to confirm
achievement of the treament standard okf an average of 1 milligram per kilogram (mg/kg) total
VOCs.
3)	The excavation was backfilled with approximately 14,700 cubic yards of treated soil and
approximately 5,500 cubic yards of clean soil.
4)	The Soil Stockpile Areas and Former Primary Lagoon excavation area were graded and
hydroseeded with a mixture of native grasses composed of a mixture of the following grasses:
Little Bluestem, Big Bluestem, Prairie Dropseed, Indian Grass and Sideouts Gramma Grass.
5)	Approximately 2,013,500 gallons of water were treated and discharged between December
2003 and September 2004. Analytical results of the treated water confirmed that the chemical
concentrations were below the discharge standards for the CTA.
6)	Perimeter air samples were collected monthly during soil treatment and backfilling
activities. All results were below health-based screening levels.
7)	Soil excavation, treatment and backfilling equipment and materials were removed from

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the CTA by May 2005.
In 1999, EPA entered into an agreement with the U.S. Department of Defense and
Teledyne Industries to provide for the development of an engineering evaluation/cost analysis of
various cleanup alternatives at the Quince Road Area. In 2003, the engineering evaluation/cost
analysis was finalized, recommending soil-vapor extraction for removal of contaminants at the
area. In 2005, the SVE system was installed and became fully operational, with 13 vapor
extraction wells. The system is expected to run through 2007.
In 2000, an interim remedial action response was completed at the Engine Test Area,
resulting in the extraction of 40,000-60,000 gallons of highly contaminated liquids from the
hazardous waste pit. The Army Environmental Center (AEC) is currently preparing an
engineering evaluation/cost analysis for the Engine Test Area, which was finalized in 2006.
In 2006, AEC completed excavation and landfarming of highly contaminated hazardous
waste pit soils. In 2007, AEC began soil-vapor extraction activities at the former test stands.
In 2003, EPA entered into agreements with TDY Industries, The Boeing Company,
Sabreliner Corporation, and the U.S. Department of Defense to provide for performance of an
investigation and engineering evaluation/cost analysis (EE/CA) at the Manufacturing Plant.
Investigations commenced in 2003. The Removal Site Investigation was largely completed in
2005, and the EE/CA is expected to be completed in 2008.
A site-wide groundwater investigation is planned for 2008. This investigation has three
objectives:
1)	develop a better understanding of groundwater flow in the Springfield
(shallow) aquifer and Ozark (deeper) aquifer,
2)	relate groundwater flow to the contamination distribution, and
3)	identify other potential source areas.
COMMUNITY INVOLVEMENT
For each Community Advisory Group (CAG) Meeting a notice is mailed and an ad placed in the
Neosho Daily News .
7/2002 Corrective Actions Management Unit (CAMU), Fact Sheet mailed and ad placed in
Neosho Daily News .
4/2003 CAG Meeting.
9/2003 Engineering Evaluation/Cost Analysis (EE/CA). Fact Sheet mailed and ad placed in
Neosho Daily News announcing 30-day Comment Period.
10/2003 CAG Meeting.
4/2004 CAG Meeting.
10/2004 CAG Meeting.
4/2005 CAG Meeting.

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11/2005 RPM mailed a letter citing updates on the areas of the site to those on the mailing list.
3/2006 Fact Sheet mailed on Engine Testing Area.
4/2006 CAG Meeting.
10/2006 CAG Meeting.
4/2007 CAG Meeting.
CAG Meetings are held twice yearly in Neosho.

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SITE REPOSITORY
Eric Haddock	Superfund Records Center
Neosho City Hall	901 N. 5th St.
203 E. Main	Kansas City, KS 66101
Neosho, MO 64850	Mail Stop SUPR
(417)451-8050	(913)551-7166
Mon-Fri: 8:30am-4:30pm
REGIONAL CONTACTS
SITE MANAGER:
E-MAIL ADDRESS:
PHONE NUMBER:
COMMUNITY INVOLVEMENT
COORDINATOR:
PHONE NUMBER:
E-MAIL ADDRESS:
STATE CONTACT:
PHONE NUMBER:
Dave Williams
Williams.Dave@epa.gov
(913)551-7625
Fritz Hirter
913-551-7130
hirter.fritz@epa.gov
Evan Kifer
573-751-1990
MISCELLANEOUS INFORMATION
STATE:	MO
07WT
CONGRESSIONAL DISTRICT:	07
EPA ORGANIZATION:	SFD-
MODIFIC ATION S
Created by:	Brian	Created Date:	05/17/99 10:06 AM
Daniel s/ SUPR/R7/U SEP A/U
S
Last Modified by: Fritz	Last Modified Date: 06/08/2007 10:30 AM
Hirter/OEP/R7/U SEP A/U S

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