New water supplies shall not be placed in operation, nor shall new
or existing dwellings or buildings or additions thereto be sold or
occupied which must rely on such a supply for water, until the Board
of Health shall have issued a certificate indicating that said water
supply has been located and constructed in compliance with the terms
of the permit issued and the requirements of the aforesaid code and
a satisfactory analysis of a water sample collected by a Board of
Health representative, indicating that the water supply meets all
state and local potable water standards, which standards shall include
a pH level of 6.5 to 8.0. Issuance of such certificate shall not be
required for alteration to an existing water supply.