Report of the Investigation of the LNAPL Plume Near Tank 464A, Section 1, Rocky Mountain Arsenal
Abstract
During January, 1989, an investigation was conducted to determine the presence and thickness of light, non-aqueous phase liquid (LNAPL) in monitoring wells in sections 1 and 2. This report presents a brief description of work completed, data collected, and general conclusions based on the data generated. The investigation included drilling and installation of seven monitoring existing wells and the measurement of the LNAPL thickness in the seven new wells and five existing wells. LNAPL is composed primarily of DCPD and BCHPD with small amounts of C6H6, MEC6H5, and XYLEN. The conclusions derived from the investigation are that LNAPL is: restricted to the Denver formation; limited in its lateral extent and has a maximum thickness of 1.4 feet; potentially an active source of ground water contamination. It is recommended that the LNAPL plume be included in the remediation of other contamination sources IRA.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1989
- Accession Number
- ADA286263