158 
ARTESIAN WELLS ON THE ATLANTIC COAST. 
[BULL. 138. 
and were penetrated to 365 feet. The following record was furnished 
by Mr. George Patton, the well driller : 
Feet. 
0-20 fine sand. 
20-50 clay and sand with gravel streaks. 
50-53 fine white sand with wood. 
53-75 white and red clay, mottled ; tough. 
75-95 white clay, very sandy ; some water. 
95-128 red clay ; tough. 
128-135 pure white clay. 
135-159 fine sand ; full of water. 
159-180 white and red mottled clay. 
180-184 tough, white clay. 
184-212 sand and clay inter hedded ; some water. 
212-216 tough dark-blue clay. 
216-240 sand and clay ; some gravel streaks ; some water. 
240-256 sticky clay with sandy streaks. 
256-260 very hard dark clay. 
260-272 clay and sand. 
272-274 hard dark clay. 
274-298 clay and sand mixed ; light lead color. 
298-320 pebbles and sand with conglomerate streaks. 
National Capital Brewing Company. — The well at this brewery has a 
depth of 310 feet, a 10-inch bore, and yields from 100 to 130 gallons of 
water per minute. No record could be obtained, but it is stated that 
alternating layers of sand and clay were penetrated to 230 feet, below 
which the materials were mostly sands with a small amount of gray 
clay. 
The following analysis of the water has been furnished: 
Analysis of water from well at Fourteenth and D streets SE., Washington, T). C. 
Lime 
Magnesia 
Sulphuric acid 
Chlorine 
Ammonia 
Albuminoid ammonia 
Iron 
Nitrous acid 
Nitric acid 
Oxygen required for organic matter 
Total residue 
Loss of residue by calcination 
Total hardness 
Parts per 
100,000. 
1.7 
1.24 
0.6 
0.71 
Traces. 
Traces. 
Traces. 
None. 
None. 
0.071 
9.0 
2.0 
4.2° 
Eckington. — The well is at the power house of the Eckington and 
Soldiers' Home Railroad. It was sunk to a depth of 225 feet, of which 
the last 66 feet were in crystalline rocks. The water is supplied both 
from crystalline rocks and the basal gravels of the Potomac formation. 
