Twenty systematic random water samples were collected in
Myingyan Township inMay of 2013. Of these samples, 12 were collected
from household drinking water wells in Myingyan City. To the extent
possible, the wells sampled in this group were distributed at 500-m
intervals along perpendicular axes that radiated in 4 equal lengths
from the center; see Fig. 2: Sample locations in Myingyan City