84 ARTESIAN WELLS ON THE ATLANTIC COAST. [bull. 138. 
within a foot of the surface. The yield is stated to be 55 gallons a 
minute. The following record is given : 
Feet. 
0-4 surface soil and gravel. Recent. 
4-30 clay with shells of several Miocene species. 
30-38 green and white sandy, clayey marl. Lower layer of Upper Marl. 
38-146 alternations of lime sand and lime rock. Lime sand. 
146-148 clay. 
148-162 greensand marl and shells. Middle Marl. 
162-166 clay. 
166-248 g ra y qnartzose sand with water. Redbank. 
The 108 feet of limy beds from 38 to 146 feet reveal an unexpected 
thickness of the upper member of the Middle Marl, which is only 25 
feet thick in its outcrop. The Middle Marl is quite definitely recog- 
nized from 148 to 162 feet. The lower beds correspond with those in 
the Woodstown well, and the water in both wells is from 80 feet of pure 
clean sand, which is regarded as the Kedbank horizon. 1 This horizon 
has also been opened in the well near Mullica Hill and at other places. 
Rancocas. — A well at A. Hansell's, a mile and a half west of Kancocas, 
had the following record: 2 
Feet. 
0-3 loam. 
3-13 reddish gravel. 
13-15 red clay. 
15-121 black clay. 
121-124 white sand. 
The horizon is at or near the base of the Matawan formation. 
Red Bank, Monmouth County. — Water was found here at a depth of 
between 80 and 90 feet, at the base of the Lower Marl. The first well 
was 8 inches in diameter, and on pumping was found to yield about 
40,000 gallons a day. The water rose to within to 8 feet of the sur- 
face, but did not overflow. Another well, 6 inches in diameter, reached 
water at the same depth. Later an excavation was made 15 feet in 
diameter to within 10 feet of the water, and five 3-foot pipes were sunk 
within this to the water. Marl was found at 29 feet; at 40 feet and at 
intervals to 48 feet large lurnps of hard marl were encountered; and 
from 48 to 52 feet the excavation was through a hard seamy marl, closely 
compacted with shells. The water supply from the well is about 250,000 
gallons per day, and the water rises to within 12 feet of the surface. 
The water is free from any organic matter, and three different sam- 
ples afforded in solid matter per gallon 6.8, G.9, and 5.6 grains respec- 
tively. It contains a mere trace of iron, and the solid matter is mainly 
carbonate and sulphate of lime. 3 
An additional water supply has since been discovered in a sand bed 
230 feet below the surface and 160 feet below that from which the first 
1 L. Woolman, in New Jersey report for 1893, pp. 415-416, 
2 L. Woolman, in New Jersey report for 1895, p. 70, 
3 New Jersey report for 1884, pp. 122-124, 
