Accession Number:

ADA273132

Title:

Final Decision Document, Northwest Boundary System, Rocky Mountain Arsenal Long Term Improvements, Interim Response Action. Version 1.0

Descriptive Note:

Corporate Author:

WOODWARD-CLYDE CONSULTANTS DENVER CO

Personal Author(s):

Report Date:

1991-10-01

Pagination or Media Count:

56.0

Abstract:

This Interim Response Action IRA Decision Document addresses the Northwest Boundary System NWBS Long-Term Improvements IRA Bii, which evaluated the present groundwater capture and treatment system and the remediation requirements of the system. The Federal Facility Agreement FFA, effective February 17, 1989, calls for the assessment, selection, and implementation of any appropriate improvements to the NWBS, as necessary. Alternatives have been reviewed based on criteria outlined in the EPA guidance for conducting Remedial Investigations and Feasibility Studies under CERCLA. The evaluation criteria included short-term risk, effectiveness, operational complexity, timeliness, present value cost, ability to meet ARARs, long-term effectiveness, and protectiveness.

Subject Categories:

  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE