The U.S. Environmental Protection Agency today announced that Dry Creek Rancheria in Sonoma County, Calif. has gained authority to administer its own water quality programs under the federal Clean Water Act. [Read more]
Do you have timely, accurate information to guide business and operation decisions? Does your SCADA/control system help you handle business challenges and improve performance?
Join the CA-NV AWWA for a specialty seminar entitled “Practicality and Innovation: How SCADA Systems Improve Performance.” Learn how leading utilities ensure that control systems support their business requirements. This full-day of learning will occur November 16, 2011, at the San Francisco PUC Millbrae Campus. This training is cosponsored by CWEA. [Read more]
From Wendy Wert, LACSD
On September 22, 2011 the American Academy of Environmental Engineers (AAEE) hosted its annual West Coast Event titled, GM’s Pioneer Recycled Water Use in SoCal, at the Orange County Water District (OCWD) headquarters in Fountain Valley. OCWD General Manager Mike Markus initiated the program with a tour of the Groundwater Replenishment System (GWRS), which is the largest water purification project of its kind in the world. The system currently produces 70 million gallons per day (MGD) of finished water or enough to meet the needs of 144,000 families.
For decades imported water from the Colorado River and the State Water Project has been relied upon. In recent years there has been a reduction in imported water supplies due to recurring droughts. Reduced supply has been coupled with population expansion, which leads to the need to secure new water sources.
The OCWD and the Orange County Sanitation District (OCSD) worked together to meet this challenge through the construction of the GWRS. The GWRS takes highly treated sewer water and purifies it using a state-of-the-art three-step process. The advanced treatment system includes: microfiltration, reverse osmosis, and ultraviolet light with hydrogen peroxide disinfection. Microfiltration is a low-pressure membrane process that removes suspended particles, protozoa, bacteria and some viruses. Reverse osmosis is a high-pressure membrane process that forces water through the molecular structure of a thin membrane that filters out minerals and contaminants, including salts, viruses, pesticides and other materials. During disinfection, water is exposed to ultraviolet light and hydrogen peroxide. Due to the advanced treatment level, some alkalinity must be replaced in order to stabilize the pH. Lime is added to the finished water for this purpose. [Read more]
From Latif Laari, Victor Valley Water Reclamation Authority
One hundred and six attendees and 22 exhibitors participated in the CWEA-DAMS VENDOR FAIR on August 25, 2011. The annual event was held this year at the beautiful snow summit in Big Bear; the weather was a cool 75 °F. Participants drove from all over southern California to the mountain resort of Big Bear to gain additional knowledge about collection system solutions. Paul Walton, DAMS Corp. Comm. Chair, kicked off the program with a welcome that was followed bye numerous seminars from vendors and guest speakers. This year we again organized the Air Pack Derby where teams of operators from different utilities enter into a challenge of endurance and fun. The-best in-show was definitely taken by the LA Wrecking Crew — their energy was contagious and their execution was flawless. Door prizes and awards given to winners of various challenges and drawings heightened the fun. And finally everyone raved about the food this year; the 12 oz Rib Eye Steak was the favorite. [Read more]
What an absolutely beautiful day in Los Angeles for WEF’s 4th annual Community Service Project. This year’s volunteer event was hosted on Saturday Oct 15th at the brand new South Los Angeles Wetlands Park and involved planting 37 trees along the park’s boundary. Organized by WEF’s Students and Young Professionals Committee, nearly 90 students, young professionals and old professionals gathered to work hard, have some fun, plant some trees and leave a bit of beauty here in Los Angeles to last for generations.
The South Los Angeles Wetlands Park is a City of Los Angeles project designed to capture and clean stormwater from local streets and reduce pollutants entering the Los Angeles River. WEF’s project involved planting trees and connecting infiltration piping into the gutter. The pipeline allows rainwater to pass through the gutter and into the tree’s roots – putting stormwater to a better use and eliminating pollution.
For more information about the SYP Committee and WEF’s Day of Service click here >