TYPHOID FEVER IH DISTRICT OF COLUMBIA, 
145 
Sewer . — Depth, 18 feet; distance from well, 10 feet. 
Privies. — None within two blocks. 
Bacteriologically . — Indicates sewage pollution. 
Chemically . — Polluted. 
Location. — Thirteenth street between D and E streets SE. (west side). 
Condition . — Out of order. 
Depth. — Below surface, 30 feet; water, 4 feet. 
Sewer . — Depth, 11 feet; distance from well, 100 feet. 
Privies.— Tan in opposite block; 3 others within two blocks. 
The following case 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 
207 
June 20 
Frequently 
? 
Location . — 0 street, between Half and First streets SE. (north side). 
Kind. — Wood. 
Condition . — Broken; not in use since last summer. 
Depth. — Below surface, 20 feet; water, 4 feet. 
Privies. — Eight in block; 15 within one and one-half blocks. 
Sewer . — Depth, 11 feet; distance from well, 0 feet. 
Location . — Elvan avenue, west of Stanton avenue. 
ICind. — Iron. 
Condition.- — Out of order; residents say water not fit to drink when obtainable. 
Depth. — No data. 
Sewer . — None in neighborhood. 
Bacteriology of the shallow wells in the District of Columbia. 
No. 
Location. 
Date. 
Number 
of bac- 
teria per 
cubic 
centi- 
meter. 
Ferment in lac- 
bouillon. 
B. coli present. 
0.1 cc. 
1 cc. 
10 cc. 
0.1 cc. 
1 cc. 
10 cc. 
Northwest. 
1906. 
5 
Sixth, between F and G streets 
July 
16 
60 
— 
— 
— 
— 
— 
— 
378" 
do 
Oct. 
5 
7 
_ 
_ 
_ 

L 
do 
July 
7 
7 
6 
Ninth and H streets 
July 
16 
80 
— 
__ 
— 
— 
— 
— 
377 
do 
Oct. 
5 
42 
L 
do 
July 
7 
8 
8 
Tenth and N streets 
July 
17 
500 
4- 
-1- 
+ 
-h 
-t- 
+ 
358 
do 
Oct. 
3 
590 
_ 
L 
do 
July 
7 
215 
+ 
9 
Tenth and K streets 
July 
17 
350 
+ 
+ 
+ 
+ 
359 
.... .do 
Oct. 
3 
139 
-i- 
L 
do 
July 
5 
75 
11 
Seventeenth and K streets 
July 
17 
127 
— 
— 
__ 
— 
— 
— 
372 
do 
Oct. 
5 
18 



L 
do 
June 
26 
50 
13 
Third street and Indiana avenue 
July 
18 
44 
— 
— 
— 
— 
— 
— 
376 
do 
Oct. 
5 
43 
_ 
+ 
+ 
L 
do 
July 
7 
20 
— 
— 
— 
— 
29643—07 10 
