Think Environment Week
Transcription
Think Environment Week
New treatment plant gets WQA’s seal of approval By Dereck Andrade Correspondent I f the San Gabriel Valley Water Quality Authority gets its way, Alhambra’s new water treatment plant slated to open Oct. 2 will be a fountain of success in the WQA’s latest quest to help the San Gabriel Valley become more self reliant on its own ground water supply and less dependent on expensive, outside sources. The WQA (www.wqa.com) and the city of Alhambra will stand united when Phase II of the $13.5 million plant is unveiled during a dedication ceremony open to the public from 9 to 11 a.m. at the Alhambra Groundwater Treatment Plant at 512 S. Granada Ave., adjacent to the Alhambra Community Gardens. That is two years to the day when Alhambra first broke ground on the project in 2006, city officials said. “We look to the city of Alhambra as a partner, working with us for the greater cause,” said Grace Kast, executive director of the West Covina-based WQA. “Now they can augment their own ground water supply.” GRACE KAST The WQA provided the city with $1,455,800 for construction of the facility that is near Clay Court. The plant will be computer-operated onsite, and the city has hired an additional two pump operators, city officials said. There are two buildings that house the treatment plant, according to Martin Ray, the city’s deputy director of utilities. The first is 11,935 square feet. It contains seven pairs of granular activated carbon contactors — each pair is capable of processing up to 1,000 gallons per minute — and four nitrate removal vessels and six tanks for various uses, Ray said. The second building is 2,340 square feet and contains a chlorine generation system, four variable speed pumps and office space for the supervisory control and data acquisition control system. “Anything that helps to offset the cost of water to the rate payers is a good thing,” Kast said. “(With) this project clean-up, our goal was to make sure that the water that is cleaned has a beneficial use.” The Alhambra treatment plant will process 7,000 gallons of water per minute, utilizing liquid-phase granular activated carbon, more commonly referred to as LGAC, and ion-exchange treatment technologies. The combination is expected to remove volatile organic compounds and nitrates from the city’s existing well water into a useable, precious resource for residents and businesses. The treatment project is part of Alhambra’s larger Capital Improvement Plan that is managed by the city’s Water Resources and Capital Projects Division, which is overseen by the city’s utility department (http://cityofalhambra.org/government/utilities/ water_resources.html). The city prides itself on a stellar record of providing safe drinking water to its residents, according to Ray. “What this project will help us do is to take water from two existing wells that we are pumping and blending now, and two wells that are out of service because of contaminants from the 1980s,” he said. One of those existing wells is on the site of the new treatment plant, while the other is just west near Mission Drive, Ray said. The city is still awaiting word from the Environmental Protection Agency (www.epa. gov) on its ongoing investigation on what, or possibly more importantly, who may have contaminated the city’s underground water supply. “As far as I know, the PRP (potentially responsible party) has not been identified by the EPA,” Ray said. Groundwater contamination is not new to the San Gabriel Valley. Baldwin Park, El Monte and South El Monte have a long history of having groundwater contamination caused by perchlorate, a chemical used as the primary ingredient in solid rocket fuels, missiles and fireworks. Alhambra’s new plant is expected to treat 11,260 acre feet of water per year. If that sounds like a lot of water, it is, considering one acre foot of water is equal to providing water to a family of four for a year. Do the math and Alhambra is treating enough water for 11,260 families. Considering the population of Alhambra is now at 92,158, according to the city’s website, a year-to-year increase of 0.94 percent from 2000 U.S. Census data of 85,804, the timing could not have been better, because the city’s water needs have increased incrementally. Kast said the WQA will reimburse Alhambra up to $702,220 for one year of operations and maintenance, what water quality officials call “treatment and remediation,” for the actual clean-up. Alhambra must show the WQA a list of its expenses, which would cover carbon change-outs; electrical, including the pumping cost to boost the water out of the ground, push it through the plant, and then through the distribution system, and monitoring the water quality, Ray said. Because government bonds do not cover O&M, according to Burgess, the WQA and its partners want state and federal elected officials to recognize that bond monies are needed to start helping fund the entire clean-up effort from start to finish. The WQA’s partnership with Alhambra also helps reduce the need for water from external sources such as Los Angeles’ Department of Water and Power that gets its water supply from the Colorado River and the State Water Project. “This will help us become less dependent on the MWD,” Ray said. It also helps to remind San Gabriel Valley cities that California is facing severe drought conditions. Gov. Arnold Schwarzenneger (www.gov.ca.gov/ executiveorder/9797) in June declared a statewide drought order to force into effect water conservation and water-efficiency programs. “We want to clean the basin up and get these contaminants out,” Ray said. “If you don’t start, you never get there. It is going to help us to meet all of the state and federal regulations. That’s our goal. To serve a wholesome product to our customers since water is the only utility that anyone consumes.” But the WQA’s Kast gives full credit to Alhambra for taking the lead in cleaning up its groundwater issues. Greg Nordbak, chairman of the board of the WQA, said he thinks water treatment plants are critical for not only the survival of the San Gabriel Valley but all of Southern California. “People seem to lose track of the fact that Southern California is a desert,” he said. “Water is looked at without a thought. We want to get ahead of the game and be self-sufficient in times of water shortages.” Nordbak said that everyone is aware that the largest disconnect between Northern and Southern California is water allotment. “We need to treat our water to take some of the strain off the water that we are allotted from Northern California,” he said. “With the ability to treat our water, it relieves some of that burden.” Water Quality Authority Board Members Greg Nordbak Chairman Bob Kuhn Vice Chairman Margaret Clark Secretary Jim Byerrum Treasurer Al Contreras Board Member Carol Montaro Board Member Michael Whitehead Board Member 13