Table A-5. Description of beach borings shown in Figure 13.— Continued 



Boring 



Location 



Elevation 



Sediment 



Horizon depth 



Horizon 



Classification 



Median 



number 







thickness 



below MSL 



thickness 





diameter 







(feet) 



(feet) 



(feet) 



(feet) 





(millinieters) 



14 



West side. 



-1.3 



28.0 



-1.3 to -4.5 



3.2 



Fine to medium sand 



0.4 to 0.06 





Quantuck Bay 







-4.5 to -20.4 



15.9 



SUt or clay 













-20.4 to -29.3 



8.9 



Uniform medium sand 



0.6 to 0.3 



15 



3.8 miles east of 



-2.5 



29.0 



-2.5 to -3.8 



1.3 



Uniform medium sand 



0.6 to 0.3 





Moriches Inlet, 







—3.8 to —3.5 



1.7 



SUt or clay 







Moriches Bay 







-3.5 to -8.0 



2.5 



Uniform medium sand 



0.6 to 0.3 











-8.0 to -14.5 



6.5 



Fine to medium sand 



0.4 to 0.06 











-14.5 to -19.5 



5.0 



Uniform medium sand 



0.6 to 0.3 











-19.5 to -24.0 



4.5 



Fine to medium sand 



0.4 to 0.06 











-24.0 to -31.5 



7.5 



Uniform medium sand 



0.6 to 0.3 



16 



3.7 miles west of 



-1.6 



27.0 



-1.6 to -18.5 



16.9 



Uniform medium sand 



0.6 to 0.3 





Moriches Inlet, 







-18.5 to -28.6 



10.1 



Fine to medium sand 



0.4 to 0.06 





Moriches Bay 















17 



Narrow Bay off 



-2.0 



27.0 



-2.0 to -7.5 



5.3 



sot or clay 







Mastic Beach 







-7.3 to -29.0 



21.7 



Uniform medium sand 



0.6 to 0.3 



18 



Great South Bay 



-2.0 



25.5 



-2.0 to -7.5 

 -7.5 to -9.9 



5.3 



2.4 



Uniform medium sand 

 Silt or clay 



0.6 to 0.3 











-9.9 to -20.8 



10.9 



Fine to medium sand 



0.4 to 0.06 











-20.8 to -27.5 



6.7 



Uniform medium sand 



0.6 to 0.3 



19 



Great South Bay 



-4.0 



25.5 



-4.0 to -21.3 

 -21.3 to -26.4 



17.3 

 5.1 



Fine to medium sand 

 Silt or clay 



0.4 to 0.06 











-26.4 to -29.5 



3.1 



Uniform medium sand 



0.6 to 0.3 



20 



Great South Bay 



-1.9 



26.0 



-1.9 to -27.9 



26.0 



Uniform medium sand 



0.6 to 0.3 



21 



6.5 miles east of 



-5.4 



27.5 



-5.4 to -12.3 



7.2 



Silt or clay 







the western tip of 







-12,3 to -32.4 



20.3 



Fine to medium sand 



0.4 to 0.06 





Fire Island 















Taney (1961) 



106 



