MIL-HDBK-1164
c)
Driven Wells. Driving the well point may damage the screen or
seal it off. If water yield decreases, suspect screen clogging and try backwashing. If
this fails, pull the point and clean it or replace it with a new one.
Table 6
Maintenance Checklist for Groundwater Supplies
Frequenc
Inspection
Action
y (1),(2)
Operating record
Ascertain changes in conditions since previous
SA
review
inspection and take necessary action.
Sanitary conditions
Dig ditches to carry away standing water within
SA
50 feet (15 m) of well, spring, or infiltration
gallery.
Pollution sources
Fence area to keep livestock at least 50 feet
SA
(15 m) from well, spring, etc.
Remove cesspools, privies, septic tanks, etc.;
SA
cover area with hypochlorite; fill any open
excavations resulting from removal.
Wells, springs,
Remove accumulations of more than 1 foot (30
V
infiltration galleries, silt,
cm).
etc.
Concrete; cracks in
Repair as necessary by making surface
Q
housing; other
structure watertight.
watertight structures in
Shore up infiltration gallery wall structures.
Q
wells, springs,
infiltration galleries,
and radial wells
Operating records and
Disinfect wells, springs, infiltration galleries,
V
evidence of
etc., when indicated.
Well output loss and
Clean well screen by approved method.
V
condition of well screen
Well equipment (well
Repair as necessary to make all items
SA
apron, top of casing,
watertight.
well pits); cracks and
40
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