Columbia subject headings:
Harvard subject headings:
Borings--Ohio--Cuyahoga County.
Groundwater--Ohio--Cuyahoga County.
Water--Composition
Water-supply--Ohio--Cuyahoga County.
Princeton subject headings:
Borings--Ohio--Cuyahoga County.
Groundwater--Ohio--Cuyahoga County.
Water--Composition.
Water-supply--Ohio--Cuyahoga County.