For the full list of tested waters , policy recommendations to improve quality and a ZIP code searchable map , go to http : //www.nrdc.org/beaches . Report : 10 % of water samples from U.S. beaches fail standards for swimmer safety . Thirty-five beaches rated as `` superstars '' for water quality . " Comment: The reason is that the EPA has a very strict standard to measure swimming pools and other public facilities, which are not designed or built specifically with this in mind.
Report : 10 % of water samples from U.S. beaches fail standards for swimmer safety . Thirty-five beaches rated as `` superstars '' for water quality . " Comment: The reason is that the EPA has a very strict standard to measure swimming pools and other public facilities, which are not designed or built specifically with this in mind.