Pueblo County, CO: Pueblo Chemical Depot

Formerly Used Defense Sites (FUDS) Program

Published April 15, 2015
Pueblo
Chemical Depot is located in southeastern
Colorado in Pueblo County. It encompasses more
than 23,000 acres of rolling prairie and includes a
variety of buildings and other structures.

Pueblo Chemical Depot is located in southeastern Colorado in Pueblo County. It encompasses more than 23,000 acres of rolling prairie and includes a variety of buildings and other structures.

Location and Description: Pueblo Chemical Depot is located in southeastern Colorado in Pueblo County. It encompasses more than 23,000 acres of rolling prairie and includes a variety of buildings and other structures. The installation stores chemical munitions that are scheduled to be destroyed. The installation was listed on the Base Realignment and Closure list in 1988. The installation was to realign the mission to include only munitions storage. Once the munitions were destroyed, the installation would close. 

Problems and Response: The depot has 60 sites in various stages of investigation, remediation, and closure. The installation has two plumes of groundwater contamination that have traveled off post. One plume is primarily solvents. This plume does not involve a drinking water source. The other groundwater plume contains low-level explosives (TNT and RDX). This contaminated groundwater plume has traveled south to various homes and to a municipal water source (town of Avondale). 

The U.S. Army Corps of Engineers has installed treatment systems in all affected off-site locations. 

Activities for 2015: Compliance monitoring, operation and maintenance of groundwater treatment systems, contaminated source excavation, and groundwater treatment are also planned. The investigation and remediation of several areas are also planned. 

Proposed Activities for 2015: Proceed with the remediation of the two plumes of contamination that have migrated offsite, as well as the operation of the on-site and off-site treatment systems. 

Issues and Others Information: This site is regulated under the Resource Conservation and Recovery Act environmental regulations. These regulations give the state the authority to select the method of clean-up used at the site.


Pueblo County, CO: Pueblo Chemical Depot

Formerly Used Defense Sites (FUDS) Program

Published April 15, 2015
Pueblo
Chemical Depot is located in southeastern
Colorado in Pueblo County. It encompasses more
than 23,000 acres of rolling prairie and includes a
variety of buildings and other structures.

Pueblo Chemical Depot is located in southeastern Colorado in Pueblo County. It encompasses more than 23,000 acres of rolling prairie and includes a variety of buildings and other structures.

Location and Description: Pueblo Chemical Depot is located in southeastern Colorado in Pueblo County. It encompasses more than 23,000 acres of rolling prairie and includes a variety of buildings and other structures. The installation stores chemical munitions that are scheduled to be destroyed. The installation was listed on the Base Realignment and Closure list in 1988. The installation was to realign the mission to include only munitions storage. Once the munitions were destroyed, the installation would close. 

Problems and Response: The depot has 60 sites in various stages of investigation, remediation, and closure. The installation has two plumes of groundwater contamination that have traveled off post. One plume is primarily solvents. This plume does not involve a drinking water source. The other groundwater plume contains low-level explosives (TNT and RDX). This contaminated groundwater plume has traveled south to various homes and to a municipal water source (town of Avondale). 

The U.S. Army Corps of Engineers has installed treatment systems in all affected off-site locations. 

Activities for 2015: Compliance monitoring, operation and maintenance of groundwater treatment systems, contaminated source excavation, and groundwater treatment are also planned. The investigation and remediation of several areas are also planned. 

Proposed Activities for 2015: Proceed with the remediation of the two plumes of contamination that have migrated offsite, as well as the operation of the on-site and off-site treatment systems. 

Issues and Others Information: This site is regulated under the Resource Conservation and Recovery Act environmental regulations. These regulations give the state the authority to select the method of clean-up used at the site.