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MERRITT HERALD TUESDAY, AUGUST 11, 2015 • MERRITT NEWSPAPERS
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TEST FINDS TOXICITY LEVELS IN LOCAL BIOSOLIDS Michael Potestio THE MERRITT HERALD
The David Suzuki Foundation has found high levels of chemicals in test samples of biosolids located along a power line right-of-way south of Logan Lake. John Werring, senior science advisor for the foundation said he collected samples of the waste product back on July 9, which he submitted to Maxxam Analytics in Burnaby to be analyzed. The samples were not taken from the BioCentral composting facility in Lower Nicola that has been the subject of a road blockade by protesters since March. The accredited laboratory was asked to test for a handful of chemicals — DEHP phthalates, polycyclic aromatic hydrocarbons, dichlorophenol and heavy metals. Werring said these chemicals are toxic to humans and many are carcinogens. The results showed the levels of these substances in the samples were higher than the limits in schedules for standards triggering contaminated soil relocation agreements and generic numerical soil standards under the province’s BC Contaminated Sites Regulations. “The reason I chose the BC Contaminated Sites Regulations levels is because those levels are set for protection of human health and the environment,” Werring said. Despite exceeding the limits in those regulations, the metal levels fell within the allowable range for Class B biosolids in the Ministry of Environment’s Organic Matter Recycling Regulation (OMRR). “I would think that for biosolids you would want to be below the [BC] Contaminated Sites Regulations,” Werring said. Minister of Environment Mary Polak told the Herald the two regulations have differing limits because not all contaminated soils are equal — there are gradations of contamination. “Even within the contaminated soils,
The David Suzuki Foundation tested biosolids spread at this site just south of Logan Lake, after they were turned away from BioCentral’s site in Lower Nicola. According to the test results, the soil contained “concerning” levels of toxic chemicals. Submitted by the David Suzuki Foundation
there are different levels at which we require different types of treatment and different types of handling,” Polak said. “An area of soil can be contaminated and yet not to the extent where we would consider it harmful.” She said contaminated soil needs to be handled in a safe way, which is also the case with biosolids and animal manure alike.
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“Depending on what category it falls into, we have different requirements to handle it, so that it can be safe,” she said. Handling biosolids properly includes having appropriate setbacks from water courses, frequency of applying it to the land and the amount per square metre, she said. Polak told the Herald she’s aware of Werring’s results and her ministry is in the
process of obtaining contextual information — such as the exact location of the biosolids sampled, what materials were tested and the methods that were used — from some of the local First Nations bands who were part of an initiative to have Werring visit them regarding their concerns of biosolids being dumped in the Nicola Valley.
See ‘Polak’ Page 3
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