ENVIRONMENTAL PROTECTION AGENCY)VILLAGE OF COULTERVILLEv.
) PCB 73—370
ENVIRONMENTAL PROTECTION AGENCY)OPINION AND ORDER OF THE BOARD (BY MR.
Muchmore cites a level of 9000 ppm.
ppm (dry basis) found in a 1952 Wisconsin study as being the copper
content necessary to affect bottom dwelling organisms.
9 — 477
—2—The Muchmore Report deals with alternative algicides includingchlorine, lime, potassium permanganate and ~-Iydrothol—47. In conclusion, as we complete another algae “season”, weseem to know only that copper sulfate used to control algaeprobably does not cr...
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