Expansion proposal for Gross Reservoir placed on hold After Denver Water accused Boulder County of derailing the expansion, the county placed a hold on the proposal. Author: Pamela Comme Updated: 11:11 PM MDT July 27, 2021 BOULDER, Colo. — After Denver Water sued Boulder County for meddling in its planned expansion of the Gross Reservoir, the proposal has been put on hold. Boulder County Community Planning & Permitting (CPP) had requested additional information from Denver Water. They didn't provide what was asked. The lawsuit that Denver Water filed against the county in July 2021, led to a request from their attorney to put the application on hold. CPP Director Dale Case granted the request the next day, July 27.