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U.S. GEOLOGICAL SURVEY
Open-File Report 01-420
This report presents ground-water and surfacewater quality data from samples collected by the U.S. Geological Survey from November 1999 through May 2001 at West Branch Canal Creek, Aberdeen Proving Ground, Maryland. The report also provides a description of the sampling and analytical methods that were used to collect and analyze the samples, and includes an evaluation of the quality-assurance data.
The ground-water sampling network included two 4-inch wells, two 2-inch wells, sixteen 1-inch piezometers, one hundred thirteen 0.75-inch piezometers, two 0.25-inch flexible-tubing piezometers, twenty-seven 0.25-inch piezometers, and forty-two multi-level monitoring system depths at six sites. Ground-water profiler samples were collected from nine sites at 34 depths. In addition, passive-diffusion-bag samplers were deployed at four sites, and porous-membrane sampling devices were installed in the upper sediment at five sites. Surface-water samples were collected from 20 sites.
Samples were collected from wells and 0.75-inch piezometers for measurement of field parameters and reduction-oxidation constituents, and analysis of inorganic and organic constituents, during three sampling events in March–April and June–August 2000, and May 2001. Surface-water samples were collected from November 1999 through September 2000 during five sampling events for analysis of organic constituents. Ground-water profiler samples were collected in April–May 2000, and analyzed for field measurements, reduction-oxidation constituents, and inorganic constituents and organic constituents. Passive-diffusion-bag samplers were installed in September 2000, and samples were analyzed for organic constituents. Multi-level monitoring system samples were collected and analyzed for field measurements and reduction-oxidation constituents, inorganic constituents, and organic constituents in March–April and June–August 2000. Field measurements and organic constituents were collected from 0.25-inch piezometers during three sampling rounds in March–April and June–August 2000, and May 2001. Porous-membrane sampling devices were installed at depths of up to 3 feet and sampled for organic compounds and reduction-oxidation constituents in March and June 2000, and May 2001. Field measurements, reduction-oxidation constituents, inorganic and organic ground-water samples were collected and analyzed from 1-inch piezometers in May 2001."
Abstract
Introduction
Purpose and scope
Site history
Description of study area
Site investigations
Acknowledgments
Methods of investigation
Ground-water and surface-water sampling networks
Ground-water 1-inch piezometers
Ground-water 0.75-inch drive-point piezometers
Ground-water 0.25-inch piezometers
Ground-water multi-level monitoring system
Ground-water profiler
Ground-water porous-membrane sampling devices
Ground-water passive-diffusion-bag samplers
Surface-water network
Ground-water and surface-water sampling methods
Well and piezometer sampling methods
1-inch piezometer sampling methods
0.75-inch drive-point piezometer sampling methods
0.25-inch flexible tubing and inverted-screen piezometer sampling methods
Multi-level monitoring system sampling methods
Ground-water profiler sampling methods
Porous-membrane sampling device sampling methods
Passive-diffusion-bag sampler methods
Surface-water sampling methods
Ground-water and surface-water analytical methods
Field measurements
Redox analyses
Inorganic analyses
Organic analyses
Quality-assurance methods
Field replicates and blind samples
Blanks
Laboratory quality assurance
Matrix spikes and matrix spike duplicates
Ground-water data from wells, piezometers, and multi-level monitoring systems
Field measurements and redox constituents for wells, piezometers, and multi-level monitoring systems
Inorganic constituents for wells, piezometers, and multi-level monitoring systems
Organic constituents for wells, piezometers, and multi-level monitoring systems
Ground-water profiler and supplemental piezometer data
Field measurements and redox constituents for profiler and supplemental piezometer samples
Inorganic constituents for profiler and supplemental piezometer samples
Organic constituents for profiler and supplemental piezometer samples
Passive-diffusion-bag sampler data
Ground-water porous-membrane sampling device data
Redox constituents for porous-membrane sampling devices
Organic constituents for porous-membrane sampling devices
Surface-water sampling data
Inorganic constituents for surface-water samples
Field measurements and organic constituents for surface-water samples
Summary
References cited
Appendixes
1A. Sampling locations for wells, piezometers, multi-level monitoring systems, and Hoverprobe
sampling sites in the West Branch Canal Creek study area, Aberdeen Proving Ground, Maryland
1B. Sampling locations for surface-water sites in the West Branch Canal Creek study area
2A. Field measurements and redox-sensitive constituents for wells, piezometers, and multi-level
monitoring systems in the West Branch Canal Creek study area, March 2000 through May 2001
2B. Inorganic ground-water constituents for wells, piezometers, and multi-level monitoring
systems in the West Branch Canal Creek study area, March 2000 through May 2001
2C. Organic constituents for wells, piezometers, and multi-level monitoring systems in the
West Branch Canal Creek study area, March 2000 through May 2001
3A. Field measurements and redox-sensitive constituents for Hoverprobe ground-water sites
(profiler and supplemental piezometers) in the West Branch Canal Creek study area,
April through September 2000
3B. Inorganic data for Hoverprobe ground-water sites (profiler and supplemental piezometers)
in the West Branch Canal Creek study area, April through September 2000
3C. Organic constituents for Hoverprobe ground-water sites (profiler, supplemental piezometers,
and passive-diffusion-bag samplers) in the West Branch Canal Creek study area,
April through September 2000
4A. Redox-sensitive constituents for porous-membrane sampling devices in the West Branch
Canal Creek study area, March 2000 through May 2001
4B. Organic constituents for porous-membrane sampling devices in the West Branch Canal Creek
study area, March 2000 through May 2001
5A. Field measurements and organic constituents for surface-water sites in the
West Branch Canal Creek study area, November 1999 through September 2000
5B. Inorganic constituents for surface-water sites in the West Branch Canal Creek study area, May 2000
1- 2. Maps showing:
1. Location of the Canal Creek area and the wetland study area along West Branch Canal Creek, Aberdeen Proving Ground, Maryland
2. Location of the wetland study area along West Branch Canal Creek
3a–b. Maps showing:
a. Location of wells, piezometers, multi-device sampling sites, and transects A–A'' and
C–C' in the wetland study area along West Branch Canal Creek
b. Location of piezometer nests WB43 and WB44 in the wetland study area along
West Branch Canal Creek
4–5. Maps showing:
4. Location of Hoverprobe sampling sites, West Branch Canal Creek
5. Location of surface-water sampling sites, West Branch Canal Creek
6. Diagram showing multi-level monitoring system placed within the borehole
7a–b. Photographs showing:
a. The ground-water profiler
b. The Hoverprobe and support hovercraft at site HP08, West Branch Canal Creek wetland
8. Schematic diagram of a porous-membrane sampling device
9. Photograph showing passive-diffusion-bag sampler
1. Description of 1-inch piezometers installed in the West Branch Canal Creek study area,
Aberdeen Proving Ground, Maryland, November and December 2000
2. Methods of analyses for inorganic constituents
3. Replicate average relative percent difference values for well, piezometer, and multi-level
monitoring system samples collected and analyzed for field measurements and
reduction-oxidation constituents, West Branch Canal Creek study area, March 2000–May 2001
4. Replicate average relative percent difference values for piezometer and multi-level
monitoring system samples analyzed for inorganic constituents, West Branch Canal Creek
study area, March 2000–May 2001
5. Replicate average relative percent difference values for well, piezometer, and multi-level
monitoring system samples analyzed for organic constituents detected by the
gas-chromatograph/mass-selective-detector method at the on-site laboratory,
West Branch Canal Creek study area, March 2000–May 2001
6. Average relative percent difference values for matrix spike samples used to evaluate matrix
effects and analytical reproducibility for ground-water samples, West Branch Canal Creek
study area, August 2000
7. Replicate average relative percent difference values for well and piezometer samples
analyzed for organic constituents detected by the electrolytic conductivity detector
method at the West Trenton, New Jersey laboratory, May 2001
8. Replicate average relative percent difference values for ground-water profiler and
supplemental piezometer samples analyzed for organic constituents,
West Branch Canal Creek study area, April–May 2000
9. Replicate average relative percent difference values for porous-membrane sampling device
samples analyzed for reduction-oxidation constituents, West Branch Canal Creek study area,
March 2000–May 2001
10. Replicate average relative percent difference values for porous-membrane sampling device
samples analyzed for organic constituents, West Branch Canal Creek study area,
March 2000–May 2001
11. Replicate average relative percent difference values for surface-water samples analyzed for
organic constituents, West Branch Canal Creek study area, November 1999–September 2000
12. Average relative percent difference values for matrix spike samples used to evaluate matrix
effects and analytical reproducibility for surface-water samples, West Branch Canal Creek
study area, May 2000
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For more information about USGS activities in Maryland, Delaware, and the District of Columbia, contact:
Director
MD-DE-DC Water Science Center
U.S. Geological Survey
8987 Yellow Brick Road
Baltimore, MD 21237
Telephone: (410) 238-4200
Fax: (410) 238-4210
or access the USGS Water Resources of Maryland, Delaware, and District of Columbia home page at: http://md.water.usgs.gov/.
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