Beaches in Maryland, Delaware and Virginia are among the cleanest in the nation. According to an annual survey released by the Natural Resources Defense Council, Maryland ranked seventh among the 30 coastal states reviewed when it comes to the smallest percentage of water samples exceeding safe bacteria levels. Delaware was second behind New Hampshire, and Virginia ranked fourth. The NRDC report says that last year’s wet weather contributed to runoff and sewage spills that contributed to nearly three times as many beach closings and advisories in 2009 when compared to 2008. The survey also showed Kent and Queen Anne’s counties virtually tied for the most reports of below-standard beach water tests, and Tolchester Beach was reportedly the worst overall.