Latitude:	38.00N - 39.00N		Longitude:	77.00W - 76.00W
Month:	Annual

Depth Mean Max. Min. Number of Sample Standard Deviation 0 14.26 21.21 3.95 580 3.57 10 15.45 22.27 7.13 473 2.95 20 17.04 21.96 9.96 227 2.48 30 18.21 23.05 11.81 173 2.55