By Terry Leeds Director, KC Water (originally appeared in the World Water: Stormwater Management Winter 2019 issue) As precipitation increases and collection and treatment systems age, local, regional, and national governments realize the critical need to manage stormwater not only to protect water quality, but also to save lives and property. Of course, we cannot...

Coverage of new ELAP regulations supported by LabWorks, waterLIMS™ Notice of proposed rule-making from the State Water Board, Environmental Laboratory Accreditation Program office… NOTICE IS HEREBY GIVEN that the State Water Resources Control Board (State Water Board) proposes to amend, adopt, or repeal the Environmental Laboratory Accreditation Program (ELAP) regulations described below after considering all...

Use alkalinity profiling in wastewater operations to control biological activity and optimize process control The Water Environment Federation’s new Operations Challenge laboratory event will determine alkalinity needs to facilitate nitrification. Operators will evaluate alkalinity and ammonia by analyzing a series of samples similar to those observed in water resource recovery facilities. This event will give operators...

The Significance City of Lodi’s 1923 Sewage Treatment Plant The CWEA History Committee published an article in the winter 2017 edition of the CWEA Wastewater Professional documenting the centennial of the use of the activated sludge process in California (1917-2017). As discussed in the article, the adoption of the activated sludge process by California utilities...

As many of you know, I am an old guy when it comes to environmental laboratories. To put it in perspective, the 13th edition of Standard Methods was in; the hip new thing was flame AA; and there were only 6 pesticides and 2 herbicides in the world. Both the Safe Drinking Water and Clean...

When I was a youngster growing up in Los Angeles, my family had a neighbor and friend who was an engineer working for the City of Los Angeles.  “Bud”, as he liked to be called, told a story of how one of the main sewers in Los Angeles was inspected by boat.  He described how...

“The 1935 Laguna Beach Sewage Treatment Plant is a significant surviving public works facility from a community that greatly upgraded its infrastructure in the 1930’s with New Deal assistance to accommodate projected growth.The town could not become the popular artistic and tourist destination without this facility.The facility design, intended to blend with the romantic geography...

From USC news service A team led by USC Viterbi’s Adam Smith has found that purified water returned to Southern California aquifers often becomes contaminated with antibiotic-resistant bacteria, a realization that could have major implications on the global water supply. By Avni Shah Wastewater recycling offers a variety of environmental benefits but also a big...

The CWEA History Committee’s “Forgotten Facilities” series highlights historically significant California wastewater treatment plants that are connected to the history of our Association. So far, the treatment plants in the series have been decommissioned, repurposed, or demolished, thus the “Forgotten Facilities” title. The wastewater treatment plants documented by the History Committee are notable for being...