| http://www.w3.org/ns/prov#value | - Klann and a student researcher sample most sites once a month and within 24 hours of a significant rain, which is six-tenths of an inch or more (???A body of water can change significantly after a rain,??? said Klann.) They Mayfly larvae take samples in the field, including temperature, conductivity, dissolved oxygen, pH and turbidity.
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