18 — Sunday, May 2, 1999 - North Shore News Our Drinking Water GVRD residents want to know What are the GVRD and its member municipatities doing to improve drinking water quality? A region-wide drinking water treatment program is being implemented which includes: secondary disinfection with chlorine at key locations in the water distribution system (first stage completed in 1998); primary disinfection with ozone for the Coquitlam and Capilano water sources (2000/2001); filtration beginning with the Seymour source (2004-5); and corrosion control facilities at all three sources (2001). Why use ozone instead of chlorine as a primary disinfectant? Advances in drinking water treatment technology and research show that for the unfiltered Capilano and Coquitlam sources, ozone will be a better primary disinfectant. Why is secondary disinfection (rechlorination) needed? Secondary disinfection is needed to maintain the bacteriological quality of our drinking water in the water distribution system to homes and businesses. As water flows through the distribution system chlorine added at the three water sources gradually breaks down. As a result, bacteria can grow in the water. Secondary disinfection provides a chlorine “boost” in order to safeguard the drinking water supply. NEWS photo Mike Waketieid How do GVRD chlorine ievels in our water compare ; Q Sweet offerings with those in other Canadian cities? BC Transit superintendent Mike McComber recently enjoyed goodies provided by Historically, chlorine leveis in our region’s water have been members of the North Shore Association for the Meritally Handicapped. Drivers . . eas . and staff were treated to coffee and home baked goods by NSAMH members as much lower than in other Canadian cities. Target chlorine Part of the seventh annual appreciation event. Hundreds of individuals affiliated levels are similar to levels in other cities. with the association use the transit system daily, and appreciate the help and care they receive from transit staff. . Are there any health risks associated with using more chlorine in the water? Lease a : Chlorine is safe at the levels used for water treatment. Grand Vitara for . tas . . $ 2 99% : The benefits of chlorination far outweigh the potential 48 mos. OAC. ; risks. When chlorine mixes with natural organics found in Including Freight & PD.E. the water, byproducts are generated that have low potential Buy from *24,390"" f health risks. Levels of byproducts found in the water are or geta well below current guidelines. Water consumers with Grand Vitara JLX MT f specific concerns about chlorine or its byproducts, however, with oir conditioning, CD player should coniact their doctors. cruise control and oluminum wheels a , $3 29 axe. Why do we need to conserve water? How can | help? gag ona Fah BPE. Despite heavy rainfall in the winter, storage capacity does or , g buy from *27,390 . not allow us to reserve enough water to meet the high avs summer demand. You can help by using water wisely. THE 1999 @aFE ZA RSD V2 Bia | Turn off your tap, take shorter showers, repair dripping 246 pom toch, quad cn. “Power mon “ oot eee . faucets, instal! low flow toilets and shower heads, adhere Full frame ded Mali poit lacie injection <1 aeovon rod ret to summer fawn sprinkling regulations and use *MacPhenon se suspension Thossin® “cant ines aaa ity water efficient turf and plants in your garden. Power seesing “Overhead mop lights Highway 9.7/100km {29 mpglt Power windows * Adjustable front heod restraints For general information about drinking water call the GVRD at 436-6899. Or visit our web site: http://www.gvrd.bc.ca iA Greater Vancouver = : , Regional North Vancouver Suzuki ¢su7ux: | District 983 20383 1695 Marine Dr. A a bal North Vancouver All you have to do is drive one . een ee ater amen nee Seine 172208 ATION SI INSADA TH tr OAL bacihealsshlaebashinthudnenenthesdidd .