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Vancouver's toxic sewage dumped in ocean

By Leslie Young Three Lower Mainland sewage treatment plants have dumped billions of litres of toxic waste into the Fraser…

By Leslie Young , in Environment , on May 4, 2008 Tags: , , , , , ,

By Leslie Young

Three Lower Mainland sewage treatment plants have dumped billions of litres of toxic waste into the Fraser River, Burrard Inlet and the Strait of Georgia, breaking federal environmental law for years without penalty.

The three wastewater plants are Iona Island in Richmond, Lions Gate in North Vancouver and Annacis Island in Delta. They have failed dozens of basic monthly toxicity tests that measure how harmful wastewater is to fish and marine life.

In 2006, the most recent year for which numbers are available, all three plants each failed the test six times. These plants have been consistently failing toxicity tests for the last seven years.

The federal Fisheries Act prohibits the dumping of any potentially harmful substance into fish-bearing waters. Courts have traditionally used toxicity tests as a way to decide whether municipal sewage is considered harmful. Environment Canada issued an official warning against the region under the Fisheries Act in March 2001, but no further action was taken.

Failed tests

Metro Vancouver officials admit the plants have repeatedly failed the tests. But they argue these results are misleading, because their monitoring programs show that the wastewater does not harm marine life.

“We have a very comprehensive program to show that when we discharge to the environment, the environment is not being adversely affected,” said Albert Van Roodselaar, manager of the Utility Analysis and Environmental Management Division at Metro Vancouver. “We do not believe we are being deleterious to the environment.”

“Fish aren’t floating to the surface and dying,” said Christianne Wilhelmson of the Georgia Strait Alliance, a B.C. based environmental group. “But every day you’re putting mercury and arsenic and a long list of chemicals into the ocean. And over time, that is contaminating the ecosystem.”

The test was originally devised by Environment Canada in 1990, and performed by an outside lab on behalf of the region. It involves taking a water sample from treated wastewater just before it is dumped into a nearby river or the ocean. Rainbow trout are placed in the sampled water for 96 hours. If at the end of this period, more than half of the fish die, the test is considered a failure.

Metro Vancouver’s five treatment plants failed this toxicity test a total of 21 times in 2006, according to documents on the Metro Vancouver website. The five plants also failed 18 times in 2005 and 13 times in 2004, according to Metro Vancouver’s annual reports. Internal documents obtained through a Freedom of Information request mention earlier failures from 2001 to 2003 but do not provide totals.

Metro Vancouver has to perform the test and report results to the provincial government. But it decides what to do about poor results.

No federal enforcement

Environment Canada would not return repeated requests for comment. But internal memos between Environment Canada and the region, obtained through Access to Information laws, show increasing discomfort at the federal level with Metro Vancouver’s treatment strategies since 2001. Still, no action was taken against Metro Vancouver.

The federal government has enforced the Fisheries Act against municipalities in the past. In 2003, Dawson City in the Yukon was convicted for dumping its sewage into the Yukon River after minimal treatment. Like Metro Vancouver, it repeatedly failed toxicity tests, and also like Vancouver, there was little observed damage to the environment due to the sewage. A judge decided that the toxicity test failures were enough to convict.

Dawson City was fined $5,000 and ordered to complete construction of a secondary sewage plant by September 2004. It was also ordered to pay an extra $5,000 for each month that it failed to meet this timeline.

Environment Canada has been working with the provincial governments since 2003 to create national quality standards for municipal wastewater. These standards will likely be announced later this year. It is still unclear whether the new standards will be enforced by the federal government or left to the provinces.

Metro Vancouver is also planning improvements to treatment quality. The region developed a Liquid Waste Management Plan in 2002, despite the federal government warning that the plan was insufficient to deal with the region’s obligations under the Fisheries Act.

This plan requires the region to improve the Iona Island plant by 2020 and the Lions Gate plant by 2030. Some environmentalists say that the region should not wait so long, but regional officials believe that it takes roughly 10 years to plan and construct such comprehensive plant upgrades.


Q&A: Metro Vancouver’s wastewater treatment

Photo gallery: Sewage treatment at Annacis Island

Map: Find out the locations of Metro Vancouver’s sewage treatment plants and beaches


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