Pubdate: Fri, 06 Mar 2009 Source: Edmonton Sun (CN AB) Copyright: 2009 Canoe Limited Partnership. Contact: http://www.edmontonsun.com Details: http://www.mapinc.org/media/135 Author: Tamas Virag Bookmark: http://www.mapinc.org/mjcn.htm (Cannabis - Canada) GROW-OPS GONE Two Area Houses Unfit For Humans Occupants of two Edmonton-area houses have been told to pack up and find new homes after the discovery of marijuana grow operations. "In a lot of cases, these types of operations can be rental houses," Capital Health environmental health officer Warren Boychuk said yesterday. "Anybody that's occupying these homes can be at risk to the various physical, chemical and biological hazards that are associated with marijuana grow operations." Last month, Boychuk signed off on the documents ordering the occupants of 55102 Range Road 235 in Sturgeon County to leave after about 600 marijuana plants were found in the house and a detached garage. "With a rural property like this, it's common with grow operations to see water damage or mould," he said of the property deemed unfit for human habitation on Feb. 17. "Any accumulation and improperly vented moisture within the house - wall cavities, attic spaces, basement crawl spaces - that have a large moisture concentration because of the grow operation can result in poor indoor air quality. "We can also see associated water-damaged building materials, which may also pose as a structural hazard." He said other hazards include large amounts of fertilizer and other chemicals, various structural alterations and carbon-monoxide build up due to exhaust vents of gas appliances such as furnaces and hot-water heaters being left disconnected to let the plants absorb the gas. Finally, many growers bypass proper electrical systems to power the many powerful lights needed for a successful operation. "You can have altered power lines and even secondary distribution panels and transformers. There can be quite a bit of alteration to the electrical system," Boychuk said of the lengths some criminals go to. "You can have bundles of wires, hanging wires, exposed circuits which can result in issues such as electrocution hazards, entanglement, entrapment, as well as potential fire if they happen to arc out improperly and there's combustibles around." The day after the rural home was padlocked, a home - which was used for a smaller-scale marijuana grow operation near 137 Street and 118 Avenue - was boarded up for similar reasons. - --- MAP posted-by: Jay Bergstrom