How do we determine when the beaches are safe for swimming? (Q78027)

From geokb
Veley, R.J., Francy, D.S., Darner, and Robert A., 1998, How do we determine when the beaches are safe for swimming?: U.S. Geological Survey Fact Sheet 1998–112, 2 p., https://doi.org/10.3133/fs11298.
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How do we determine when the beaches are safe for swimming?
Veley, R.J., Francy, D.S., Darner, and Robert A., 1998, How do we determine when the beaches are safe for swimming?: U.S. Geological Survey Fact Sheet 1998–112, 2 p., https://doi.org/10.3133/fs11298.

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