Report: No conclusive blame of humans for canal oxygen levels – Kitsap Sun

Human sources of nitrogen no doubt contribute to low-oxygen problems in Southern Hood Canal, but federal and state officials say they will need more precise information before taking action under the Clean Water Act. Other actions to reduce pollution and nutrients in Hood Canal — some voluntary and some regulatory — remain under discussion by the Hood Canal Coordinating Council, which includes county and tribal officials. A new report by the U.S. Environmental Protection Agency and Washington Department of Ecology concludes that existing studies fail to show conclusively that nitrogen from septic systems, fertilizers and other human sources have caused Hood Canal’s oxygen levels to drop by 0.2 milligrams per liter — the threshold for legal enforcement. Chris Dunagan reports.

2 Responses

  1. And conclusive proof would be notarized declarations signed by the algae?

    • Yes, probably so (G). The issue of cause and effect is so hard to prove in some cases. It’s almost got to be by a method of elimination, in some cases.

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