Demonstration and Validation of a Regenerated Cellulose Dialysis Membrane Diffusion Sampler for Monitoring Ground-Water Quality and Remediation Progress at DoD Sites

摘要

This Cost and Performance Report documents the demonstration and validation of regenerated cellulose dialysis membrane (RCDM) diffusion samplers for use in collecting groundwater samples for a range of inorganic and organic water quality parameters. This project, ER-0313, was funded by the Environmental Security Technology Certification Program (ESTCP). The primary objectives of the project were (1) to determine the usefulness of RCDM samplers in collecting a range of organic and inorganic water quality constituents from groundwater, (2) to determine the optimum equilibration times for these constituents to diffuse into the RCDM sampler, (3) to compare water quality results and sampling costs from samples collected with RCDM samplers to samples collected with a low-flow purging (LF) technique and polyethylene diffusion bag (PDB) samplers, and (4) to transfer the technology while gaining regulatory acceptance. Equilibration times were determined in bench-scale testing for major cations and anions, a suite of trace elements, volatile organic compounds (VOC), and several natural attenuation parameters. Field comparisons were conducted at three Department of Defense (DoD) sites: (1) Naval Air Engineering Station (NAES) Lakehurst, NJ; (2) Naval Base Ventura County (NBVC), Port Hueneme and Point Mugu, CA; and (3) Naval Air Warfare Center (NAWC) West Trenton, NJ. Samples collected with the three sampling techniques were compared graphically and statistically to determine the significance of any differences found.