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

Depth Mean Max. Min. Number of Sample Standard Deviation 0 11.08 14.80 6.90 70 1.60 10 9.16 12.20 6.40 42 1.43 20 8.85 11.30 6.70 9 1.35 30 8.12 8.70 6.40 6 0.86