Which preposition to use with waterworks

AT Occurrences 4%

H.Q. DUG-OUTS NEAR GAZA WADI GHUZZE NEAR SHELLAL OUR WATERWORKS AT SHELLAL

in Occurrences 2%

In providing against accidents, which, though common, yet only too often find us unprepared, they thought it especially necessary to have at hand whatever is required for the recovery of drowning menaccidents of this kind, from the number of canals, reservoirs, and waterworks in the neighborhood, being of frequent occurrence.

near Occurrences 1%

The tank was filled from the waterworks near the Elephant Gate, and the water was kept constantly fresh by an overflow channel connecting with the tank at the back of the Dîwan-i-Khâs.

on Occurrences 1%

Our first real domestic tragedy was the destruction of the waterworks on the 30th of September.

Which preposition to use with  waterworks