Latitude:	39.00N - 40.00N		Longitude:	77.00W - 76.00W
Month:	Annual

Depth Mean Max. Min. Number of Sample Standard Deviation 0 16.63 29.39 -0.30 316 8.52 10 16.90 26.54 -0.30 186 8.35 20 6.82 24.10 0.90 24 7.36 30 4.19 13.28 1.16 15 3.80 50 3.60 10.17 0.08 14 3.41 75 3.78 10.69 0.02 14 3.69 100 3.99 11.00 -0.04 14 3.81 125 4.63 11.20 1.00 12 3.99 150 4.89 11.32 0.48 11 4.25 200 5.24 11.45 0.05 10 4.52 250 5.05 11.48 0.89 9 4.44 300 4.96 11.47 0.54 9 4.51 400 5.14 8.85 1.50 6 3.99 600 1.50 1.50 1.49 2 0.01