Water monitoring systems used to test stream water for pollutants in Dinsdale County have been found to be less effective than had been hoped. To remedy this situation, the county commissioner has issued a directive that requires any town in Dinsdale County that wants to monitor its streams to use a new system that provides more accurate information.
Which of the following, if true, most strongly indicates that the county commissioner's directive will fail to achieve the desired results?
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Which of the following, if true, most strongly indicates that the county commissioner's directive will fail to achieve the desired results?

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