Grand Lake clarity standard

Grand Lake via Cornell University
Grand Lake via Cornell University

From The Denver Post (Canton O’Donnell):

In 2008, those concerned for Grand Lake established a site-specific water clarity standard through the Colorado Water Quality Control Commission. This visionary application of a water quality standard to lake clarity, which was intended to restore the scenic attraction of Grand Lake, is unprecedented in Colorado.

Now, negotiations are ramping up to modify specifics of the standard. Western Slope stakeholders recently made broad concessions on a possible joint standard proposal with the Northern Colorado Water Conservancy District, which distributes C-BT water to Northern Front Range consumers. The concessions are intended to be motivating yet practical for all stakeholders

The Western Slope stakeholders’ proposal — a target of 12.5 feet average clarity, with a 8.2 foot minimum — is still a far cry from the 30.2 feet of clarity measured prior to implementation of the C-BT. Yet this proposed clarity standard is an effort to recognize the water-delivery mandate of the Colorado-Big Thompson system while protecting lake health and allowing time for the U.S. Bureau of Reclamation to evaluate a more robust permanent solution.

The Western Slope stakeholders — made up of Grand County government, the Three Lakes Watershed Association, the town of Grand Lake, Northwest Colorado Council of Governments, and the Colorado River District — proposed this modified standard to be applicable for all of July, August and 11 days in September at the height of the region’s tourist season.

It is the hope of Eastern and Western Slope stakeholders to arrive at an agreement prior to the start of Colorado Water Quality Control Commission submittals beginning in November, for the sake of this valued resource.

More Grand Lake coverage here and here.

Leave a Reply