Because water is the most precious and limited resource in the desert, an adequate, assured, and safe water supply is of paramount importance to every resident of Pima County.
(water; is; the most precious and limited resource in the desert, an adequate, assured, and safe water supply is of paramount importance to every resident of Pima County) (safe water supply; is; of paramount importance)
water safe water supply
is is
the most precious and limited resource in the desert, an adequate, assured, and safe water supply is of paramount importance to every resident of Pima County
of paramount importance