82 ARTESIAN WELLS ON THE ATLANTIC COAST. [bull. 138. 
taken from the stratum above the marl. 1 This marl is regarded by Mr. 
Woolman as Miocene (Chesapeake) in age. 2 
Pleasant Mills, Atlantic County. — Between 1873 and 1885, 14 wells 
were sunk at this locality which yield a large supply of very pure 
water. The record was as follows : 
Feet. 
0-40 yellow and white sand and pebbles. 
40-48 tough, hard, dry blue and blue-black clay. 
Below the clay was the water-bearing stratum, from which the water 
rose 13 feet above the level of the ground. The yield from the first 
eight wells was 300 gallons per minute. The water contains 28.41 
grains of solid matter per gallon. Its temperature was 55°. 3 
A well at Barge's cranberry bog, about one-half mile west of Pleas- 
ant Mills, is at an elevation of 20 feet. It reached a depth of 201 feet, 
but was not deemed successful because it did not overflow. A flow of 
water reported at 57 feet is thought by Mr. Woolman to be the Pleas- 
ant Mills water stratum, which belongs to the lower part of the great 
diatom clay bed, a horizon which yields water at 658 feet at Ocean City. 
He regards the water in the bottom of the well as the representative of 
the 760-foot horizon in the Atlantic City wells. 4 
A well at Rockwood's bog, 5J miles northwest of Pleasant Mills, is at 
an elevation of 45 feet. It was sunk to a depth of 158 feet, but yielded 
no satisfactory supply of water. The following record is given : 
Feet. 
0-13 sands. 
13-21 sand. 
21-30 sand and clay, milky water. 
30-48 quicksand. 
48-57 quicksand and clay. 
57-66 black clay. 
66-98 coarse gravel full of iron. 
98-115 mud or muck. 
115-158 sand, gravel, and more iron. 
It is suggested by Mr. Woolman that the lower portion of this boring 
must have entered the clays and marls met with at 844 feet at Atlantic 
City, and that they are the same unsatisfactory beds in which the 
boring at Harrisia was discontinued. Had the boring been continued 
it would probably have reached the horizon tapped by the well at 
Winslow at a depth of 335 feet, and which is probably equivalent to 
the 950-foot horizon at Atlantic City. 5 
Point Pleasant, Ocean County. — The artesian well is at the Hotel 
1 New Jersey report for 1891, p. 220. 
2 New Jersey report for 1893, p. 409. 
3 New Jersey report for 1884, pp. 127-129. 
4 New Jersey report for 1892, p. 296. 
6 Loc. cit., p. 297. 
