medical units devise checklists to supplement DA Form 1715-R and to assist inspectors
in conducting complete and uniform inspections. In order to assist in developing rapport
with the water point personnel, it is recommended that the inspector and the operator
make the chlorine residual determination together. Specific items to look for in the
operation of the water purification equipment are discussed in paragraph 5-11,
Lesson 5, Field Water Treatment.
Figure 1-23. DD Form 686, Flouride/Bacteriological Examination.