WSPC00304

• File Number: 8220.106.I
• Description: Colorado River Water Projects - Animas La Plata - Environmental Studies
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 4/15/2004
• Author: DOI-BOR
• Title: Animas La Plata Project - Environmental Commitment and Monitoring Plan
• Water Supply Pro - Doc Type: Report/Study

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procedures will be planned in advance to counteract the potential for human
exposure and for the prevention of contaminated groundwater releases from
the construction site. The human exposure to contaminated soils and the
potential for release of contaminated groundwater from the site will be
mitigated by the following measures:
(i) Review remediation reports and current monitoring data to understand
existing subsurface conditions in respect to radioactive material.
(ii) Obtain preconstruction soil and water samples at site for lab testing.
(iii)Develop site safety and health management plan with radiation protection
for workers and public.
(iv)Develop construction plan to deal with hazardous conditions of excavated
soil and groundwater.
(v) Utilize analytical data to design treatment system for contaminated water.
(vi)Receive Colorado Discharge Pennit for treated water.
(vii) Pumping plant design and construction management plan are to be
approved by Environmental Protection Agency and state regulatory
agencies,
(c) The construction contractor will be required to implement a construction
safety plan which will include procedures for radiological monitoring of
excavated soils and groundwater encountered and that remedial procedures
are planned in advance to counteract the potential for human exposure and for
the prevention of contaminated groundwater release from the construction
site,
(2) Gas Pipelines Relocation:
(a) In order to avoid adverse effects to surface waters and ground water in the
project area, as well as impacts to endangered species from petroleum
products spills, Reclamation will implement or have implemented the
following measures that will apply to the lO-inch diameter Mid-American
Pipeline Corporation (MAPCO) if it is converted to a petroleum products
pipeline:
(i) BMPs will be used by crews to minimize spills of hazardous materials
during construction that could get into water ways.
(ii) Spill avoidance technology will be implemented to minimize the risk of a
spill in the petroleum product line.
(iii)Appropriate technology will be implemented to minimize the volume of a
spill from the petroleum product line.
(iv)An Emergency Response Plan for operations will be developed that details
measures to contain spills and prevent further disposal.
(v) A petroleum product monitoring element will be incorporated into the
water quality monitoring program for potential adverse bioaccumulation
of trace element in bald eagle food items in Ridges Basin Reservoir.
(vi)Periodic surface and/or aerial inspections will be conducted along the
pipeline corridor and the Ridges Basin Reservoir shoreline to provide
early detection of small leaks that go undetected by small pressure loss in
the pipeline.

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