Field evaluation of ground water sampling devices for volatile organic compounds
Previous studies conducted under laboratory conditions demonstrated that the type of device used to sample ground water contaminated with volatile organic compounds can significantly influence and analytical results. The purpose of this study was to evaluate, under field conditions, both commercial and developmental ground water sampling devices as part of an ongoing ground water contamination investigation and remediation program at the Savannah River Plant (SRP). Ground water samples were collected using six types of sampling devices in monitoring wells of different depths and concentrations of volatile organic contaminants (primarily trichloroethylene and tetrachloroethylene). The study matrix was designed to statistically compare the reuslts of each sampling device under the test conditions. Quantitative and qualitative evaluation criteria were used to determine the relative performance of each device. Two categories of sampling devices were evaluated in this field study, positive displacement pumps and grab samplers. The positive displacement pumps consisted of a centrifugal (mechanical) pump and a bladder pump. The grab samples tested were a syringe sampler, a dual-check valve bailer, a surface bomb sampler, and a pressurized bailer. Preliminary studies were conducted to establish the analytical and sampling variability associated with each device. All six devices were then used to collect ground water samples in water table (unconfined), semi-confined aquifer, and confined aquifer monitoring wells. Results were evaluated against a set of criteria that included intrasampling device variability (precision), volatile organic concentration (accuracy), sampling and analytical logistics, and cost. The study showed that, by using careful and reproducible procedures, overall sampling variability is low regardless of sampling device.
- Research Organization:
- Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Plant
- DOE Contract Number:
- AC09-76SR00001
- OSTI ID:
- 5152039
- Report Number(s):
- DP-MS-86-30; CONF-8605159-3; ON: DE86015678
- Resource Relation:
- Conference: 6. national symposium and exposition on aquifer restoration and groundwater monitoring, Columbus, OH, USA, 19 May 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHLORINATED ALIPHATIC HYDROCARBONS
SAMPLING
SAMPLERS
FIELD TESTS
GROUND WATER
SAVANNAH RIVER PLANT
VOLATILE MATTER
VOLATILITY
EQUIPMENT
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
MATTER
NATIONAL ORGANIZATIONS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
TESTING
US AEC
US DOE
US ERDA
US ORGANIZATIONS
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)