122 ARTESIAN WELLS ON THE ATLANTIC COAST. [bull. 138. 
Clayton, Kent County. — Water is obtained here in large supply from 
wells to 35, 60, and 85 feet in the Chesapeake formation, probably at 
the same horizon as at Dover and Mahon River. The diatom bed below 
was penetrated to a depth of 150 feet in a trial boring, which was aban- 
doned at that depth. 
Milford, Kent County. — Three 6-inch wells were bored at this place in 
1891, near tide level. One at 160 feet furnishes 4,000 gallons an hour, 
and the water rises 2 feet above the surface; another furnishes the 
same amount from 150 feet, with slightly greater pressure; and the 
third furnishes 3,000 gallons an hour from a depth of 31 feet. The 
record given by Mr. Woolman is as follows : l 
Feet. 
0-11 gravel. 
11-25 blue-gray gravel. 
25-44 line gray sand, with water at 34 feet, which rises to the surface. 
44-60 blue-gray clay. 
60-68 fine gray sand, with wood fragments at 65 feet. 
68-73 blue clay. 
73-90 fine gray sand, with gravel and shells at 85 feet. 
90-118 fine gray sand, containing shells. 
118-121 blue clay. 
121-137 fine gray sand . 
137-140 greenish clay. 
140-160 fine blue-gray sand. 
Area, Astarte, Katica, and two forms of Turritella were recognized 
by Mr. Woolman among the shell fragments. The water horizon is 
thought to be somewhat above the 300-foot diatomaceous clay bed. 
Mahon Elver, Kent County. — This well was sunk in 1893. It is on the 
meadow at the landing just north of Mahon Eiver light and 6 miles 
east of Dover. The following record is given : 
Feet. 
0-35 blue marl and mud. 
35-75 blue sand and mud. 
75-110 blue sand. 
110-113 hard blue sand rock. 
113-148 blue sand and chalk. 
148-154 fine white hard sand. 
154-193 white sand mixed with a substance resembling magnesia. 
193-198 very fine white sand mixed with fine black sand. 
198-206 coarse white sand mixed with gravel, and yielding an abun- 
dance of cool, fresh water. 
The water horizon appears to be the same as that at Dover at 196 
feet. 
Kitts Hummock, Kent County. — This well is 7 miles south of the 
Mahon River well. It is 110 feet in depth, has a diameter of 1 J inches, 
and the water rises to within 2J feet of the surface. The water is from 
a coarse gravel which appears to be in the great Chesapeake diatom 
bed, possibly at the 525-foot horizon at Atlantic City. 
1 Report of geologist of New Jersey for 1891, pp. 227-229. 
