All wells used as a source of supply for a public water system shall have a control zone, which shall be the area within a
circle extending outward from the center of the borehole a distance of 25 feet for pervious surface materials, or 15 feet
for impervious surface materials, such as concrete. Only those chemicals used for water treatment shall be stored in the control
zone. Motor fuels, oil, motor vehicles, or portable equipment powered by an internal combustion engine shall not be stored
in the control zone. For all new wells, on-site fuel storage for auxiliary power shall have a spill containment system for
the entire volume of fuel. Existing wells shall retrofit a spill containment system or monitor auxiliary power fuel storage.
Chemicals or motorized vehicles may be used in the control zone for maintenance of the well, well house, wellpump, or associated
plumbing. The control zone shall be protected by a chainlink fence, or equivalent, having a minimum height of seven feet,
and constructed along the outer perimeter of the control zone. Access to the control zone shall be only through a locking
gate, or equivalent.
(Prior Code, § 18-34)
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