Thursday, May 11, 2017

Going Pure

San Diego commits to recycle its sewage into tapwater

Within five years, San Diego residents and businesses are slated to get drinking water from recycled sewage. JOHN GIBBINS / San Diego Union-Tribune


San Diego Union-Tribune

Within five years, San Diegans will be sipping and bathing in water recycled from sewage, city officials declared Wednesday. A deal to pursue a plan known as Pure Water San Diego, in lieu of upgrades to an aging wastewater treatment facility, seems to be coming to fruition after more than two decades of brainstorming, formal planning and small-scale testing of water purification technologies.


What forensics team has found in dam analysis

Sacramento Bee

In a report released Wednesday, engineers assigned to investigate the February failure of Oroville Dam's main spillway cited a variety of flaws in the 3,000-foot-long structure, including variations in the thickness of the concrete slabs, poor drainage, improperly filled cracks and inadequate maintenance. However, the team warned that its analysis, which consists of 24 possible causes, is preliminary.


Chromium 6 standard not 'economically feasible'

Vacaville Reporter

The state's water regulation when it comes to Chromium 6, expected to cost cities millions of dollars to comply, must be withdrawn, according to a decision by the Sacramento Superior Court. Hexavalent chromium occurs naturally in water supplies across the state at levels that often exceed the 10 ppb standard.