BOARD00077 ‎(4)‎

• Board Meeting Date: 11/13/2006
• Description: Water Supply Planning & finance - Referred Non-reimbursable Investments - Colorado Mountain College - Rocky Mtn. Fen Research Project
• Board Meetings - Doc Type: Memo

water sampling efforts in orqer to identify all existing point and non-point .
sources of metals loading to the receiving drainages within the Evans
Creek watershed system, b) to develop a comprehensive surface water
and sediment sampling program in order to definitively delineate the point
and non-point sources of pollution to the watershed, and c) to provide
professional consultation regarding the rerouting of contaminated water
conveyance systems, the design of settling basins, the placement of
diversion canals and structures so as to eliminate the point and non-point
sources of pollution to the drinking water system of the Evans watershed.

OU 2 Monitoring and Site Closure: Several properties within the
Superfund Site have reached a record of decision and a remedy is in
place. As per the ROD, a 30year monitoring and compliance effort is
required. The students are responsible for conducting a baseline
inventory of the remedy, and a quarterly evaluation of the remedy's
integrity. They are to consistently collect in-field data regarding the
structural integrity, vegetative cover, level of disturbance etc. and report
their findings to the EPA in a year end report. This project has been
ongoing since 2001. Point of Contact: Mike Holmes/USEPA.

Colorado Division of Wildlife/Colorado Division of Wildlife In-situ
Bioassay Analysis of California Gulch: In order to determine the
bioavailability of metals within California Gulch, The CDOW is conducting .
an in-situ bioassay analysis using both invertebrates and fish species. A
portable bioassay assembly has been installed adjacent to the gulch, with
water is cycled through the facility on a daily basis in order to replenish the
exposure system for the fish. In addition, a series of caged systems have
been installed in order to measure real-time toxicity within the Arkansas
River and its tributaries. The students were trained in order to complete
the Ceriodaphnia testing themselves. In addition, the students are
responsible for water sample collection, water quality parameter
measurements, and consistent measurement of toxicity effects to the
caged and bioassay exposure chamber animals. Work completed August
2001. Point of Contact: Pat Davies/CDOW.

Cooperative Water Quality Evaluation of lake Fork with Mesa State
Univ., and University of Colorado: Students have assisted with the diel
monitoring of contaminant concentrations within the Lake Fork creek. This
effort was completed in order to determine the dissolved organic carbon
effects to manganese bioavailability. Work completed August 2002. Point
of Contact: Duane Hrncir/Mesa State Univ.

EPA Emergency Response Team - l Series Evaluation: A series of
remedial actions have been implemented on the fluvial tailings deposition
areas within the Arkansas River flood plain. As part of the evaluation to
determine the integrity of the remediation effort, the students are .