What gives with Lyons Reservoir overflow?

By Alex MacLean, The Union Democrat April 25, 2014 12:30 pm

Each day, since mid-April, enough water to supply up to 80 households for a year has been pouring over the lip of Lyons Dam — a main source of drinking water for Tuolumne County.

This apparent waste is expected to continue until late-May — a painful irony given this year’s record-book drought.

The reason for the spillage is simple, but the implications much more complex.

In short: There’s not enough room to store the water gushing into Lyons.

The reservoir has a maximum capacity of only 5,500 acre-feet — about a third of the district’s annual needs.

The water spilling over Lyons is mostly coming from Herring Creek. Herring is one of two waterways feeding Lyons and it is downstream of the main water-storage reservoir used by the TUD — Pinecrest Reservoir.

  

For the complete story, see the April 25, 2014, edition of The Union Democrat.