Insecticide spraying ...NOT the answer: 

...LAGOON REMOVAL IS.

The City seems to be trying to press ahead with its lagoon-dependent forcemain option.  Elevated concerns have developed regarding the risk of the West Nile Virus, made worse by the presence of the risky mosquito-breeding lagoons being so close to Munster homes. However, as of April, 2003, Ottawa Council still has a unique window of opportunity to avoid both the use of the lagoons, and their associated requirement for heavy insecticide spraying regimens.  This would be achieved with the high-performance "mechanical treatment" technology, (which operates without lagoons).

In the event that the City selects one of the lagoon-dependent options, there would be significant added costs and risks associated with the permanent, on-going requirements to introduce vast quantities of insecticide (such as malathion, Bti or methoprene), or other compounds, into (and/or around) these lagoons. Constant application of insecticide compounds, to lagoons, is particularly unwise and worrisome, because the lagoon contents would be quickly dispersed  though the environment, via groundwater to the Jock River, (by the Snowfluent process), or, directly into the Ottawa River (by pipeline) ...without any insecticide treatment or removal, in either case.

Quote from The Ottawa Citizen, April 12, 2003, "Oh death, where is thy sting?" by Mark Kennedy:

"Angela Rickman, of the Sierra Club, says health officials should think twice about using larvacide, saying there's evidence that methoprene can also lead to frog deformities. Better to launch community programs to persuade people to empty water reservoirs, she says.

'Larvaciding can't solve the problem and it may lead to a false sense of security.'

There's even sharper debate over spraying. Malathion, which farmers and mosquito-control programs have used since the 1950s, is the most common insecticide."

Studies by the EPA on malathion confirm the pesticide can 'overstimulate the nervous system causing nausea, dizziness, or confusion' --- but only when applied at extremely high doses.

...Ms. Rickman says malathion should not be used, arguing it is ineffective and causes health problems in humans, such as difficulty breathing."

Ottawa's City Medical Officer advised that he would use "methoprene" to "kill larvae in catch basins, storm sewers and sewage lagoons" (Ottawa Citizen, April 12, 2003: 'Enjoy summer, but watch mosquitoes', by Dave Rogers).

In Munster's case the preferable option is to eliminate the lagoons altogether: The City still has that option, and would find it far more economical,  more environmentally beneficial, and better for public health and safety. The Medical Health Officer would do well to take a "holistic view" of the totality of pipeline-lagoon negatives ...including downstream risks to residents with shallow wells, (140 wells involved), before jumping into an isolated "band-aid approach" pertaining to just ONE negative associated with the lagoons (that of their being breeding grounds for West Nile-infected mosquitoes).