WSP04900

• File Number: 8272.800
• Description: Colorado River Basin Salinity Control program - Interested Parties - NWCCOG
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 12/1/1986
• Author: NWCCOG
• Title: Northwest Colorado Council of Governments -Areawide Water Quality Management Plan for Eagle - Grand - Jackson - Pitkin - Routt and Summitt Counties CO - revised December 1986 - VOLUME II - POLICY PLAN
• Water Supply Pro - Doc Type: Report/Study

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assessment contained in Chapter IV of Volume
particular concern are Cross Creek and the Eagle
Gilman; Oak Creek in Routt County; and the Snake
Creek, and French Gulch in Summit County.

II.
River
River

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near
Peru

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In Summit County roughly one-quarter of the phosphorus
contributed to Dillon Reservoir is generated by non-point
sources runoff from human activities in the watershed, More
detail on specific sources in the Dillon watershed is
provided in Appendix B). Dillon presents an example of the
types of problems that are likely to increase in seriousness
in the coming years. As the rural West Slope grows, the
areas contributing to construction-related erosion and urban
runoff will also increase. Preventing eutrophication in
Dillon Reservoir requires tight controls on non-point
sources. This situation may occur in other areas of Region
XII also.

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Point source discharges in Region XII are typically well
managed. Advanced wastewater treatment is often required
for ammonia removal to protect fisheries. Advanced
phosphorus removal is required in the Dillon and Green
Mountain *reservoirs'watershed. Continued attention to
point sources is needed to ensure that our high quality
streams are protected.

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Large area soil disturbance activities such as mining,
timber harvests and ski area expansions present the
potential for large water quality impacts. The U.S. Forest
Service has identified areas where excessive soil loss from
existing timber harvest operations require remedial actions
to protect water quality. At present these operations are
well managed under permits from the Colorado Mined Land
Reclamation Board and the U.S. Forest Service.

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Recommended Policy Implementation

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A. Existing Water Quality Standards

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(1) The surface waters of the Region have been divided into
stream segments and classified by the Colorado Water Quality
Control Commission. These classifications and standards
were published in the Colorado Register on May la, 1980,
were amended on June 12, 1984 and are incorporated herein by
reference. These classifications and standards should be
met through all actions of designated management agencies.
NWCCOG will recommend selected revisions to these standards
at the next triennual review by the Commission. Waters
which will be examined prior to that time are Green Mountain
Reservoir, Ten Mile Creek, Peru Creek and the Eagle River.

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I (2) Certain stream segments with known water quality ,~

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