78 
ARTESIAN WELLS ON THE ATLANTIC COAST. 
[bull. 138. 
bored to a depth of 760 feet for the Ocean City waterworks. The 
following record is by Mr. L. Woolman : 
Feet. 
0-30 beach sands, with recent shells at the base. 
30-115 sand. 
115-175 sand, with thin clay seams. 
175-185 sandy clay. 
185-278 fine gravel and sand, with streaks of clay. 
278-318 bluish, sandy clay, solid. 
318-334 sand, with water. 
334-366 bluish, sandy clay, with small shells. 
366-371 sand, with water. 
371-400 gray sand, with small shells. 
400-512 bluish, sandy clay, diatomaceous. 
512-528 gray sand, with water. 
528-600 bluish, sandy'clay, diatomaceous. 
600-655 brownish, sandy clay, hard, with shells and diatoms. 
655-660 brownish clay, with crusts. 
660-680 g ra .V sand, with many small shells in considerable variety, borne 
diatoms. i 
680-685 clayey sands, with diatoms. 
685-690 sand, with wood, shells, and water. 
690-700 coarse gravel, sand, shell, and thin clay seams. 
From 400 to 685 feet is the great diatomaceous clay bed, which occurs 
at from 380 to 680 feet at Atlantic City, but it is here somewhat more 
sandy. The beds from 278 to 371 feet in the Ocean City well contain 
more clay than at Atlantic City, where the corresponding interval 
shows mostly sand. The gravels which terminate at 278 feet terminate 
at 265 feet at Atlantic City. As at Atlantic .City, the beds here from 
695 to 760 feet are nondiatomaceous. The following comparison of the 
water horizons is given : 
In sands above the diatomaceous clays. 
In central sands of diatomaceous clays 
In lower sands of diatomaceous clays. . 
In sands below diatomaceous clays 
Atlantic City. 
Ocean City. 
Feet. 
Feet. 
270-328 
334 and 366 
525 
512 and 528 
Not known. 
685 
700-720 
720 
Although this well is 10i miles from Atlantic City, it is only about 
one-half mile southeast of the line of strike of the beds; hence the close 
correspondence of the records. The water from the Ocean City well 
was taken at 720 feet. 1 
Another well was bored in 1893 to a depth of 800 feet, where, in a 
coarse brown sand, water was found which rises in the casing 15 feet 
above the surface and flows 140 gallons a minute. It is the same hori- 
zon as that at the Knickerbocker Ice Works in Atlantic City. 
'L. Woolman, in New Jersey report for 1892, pp. 279-281. 
