128 
TYPHOID FEVER IN DISTRICT OF COLUMBIA. 
SUMMARY — Shallow wells. 
For an explanation of the data in the following summaries, see 
page 116 . 
SHALLOW WELLS NORTHWEST SECTION. 
No. 5. 
Location. — Sixth street, between F and G streets NW. (east side, mid-block). 
Kind. — Wood. 
Condition. — Old; bricks loose at base; pipe drain to sewer. 
Depth. — Below surface, 28 feet; water, 3 feet. 
Sewer. — Depth, 9 feet; distance from well, 20 feet. 
Privies. — Nearest, two blocks. 
Bacteriologically . — Good. 
Chemically. — Remote pollution. 
The following 2 cases of typhoid fever drank the water of this well; 
Case 
No. 
Onset of 
disease. 
During the 30 days preceding onset of disease used the well wate] — 
Probable source of 
infection. 
246 
July 5 
July 20 
Occasionally 
?. 
458 
do 
? 
No. 6. 
Location. — Ninth and H streets NW. (southeast corner). 
Kind. — Wood. 
Condition. — Old; pipe drain to sewer. 
Depth. — Below surface, 26 feet; water, 4 feet. 
Sewer. — Depth, 10 feet; distance from well, 20 feet. 
Privies. — None within two blocks. 
Bacteriologically. — Good . 
Chemically. — Remote pollution. 
The following 4 cases of typhoid fever drank the water of this well: 
Case 
No. 
Onset of 
disease. 
During the 30 days preceding onset of disease used the well water— 
Probable source of 
infection. 
174 
May 27 
June 27 
Occasionally 
■ ?, 
221 
Frequently 
?. 
?. 
344 
July 14 
July 27 
.do 
438 
Occasionally . . 
1 , 
No. 8. 
Location. — Tenth and N streets NW. (northeast corner). 
Kind. — Wood. 
Condition.— Rotten at base; old; cracked; pipe drain to sewer. 
Depth. — Below surface, 37 feet; water, 22 feet. 
Sewer. — Depth, 11 feet; distance from well, 0 feet. 
Privies. — Two in block. 
Bacteriologically. — Indicates sewage pollution; variable. 
Chemically. — Polluted. 
