In the framework of a study aimed at the aquifer system characterization in the Sistiana quarry area (Gulf of Trieste,
Classical Karst coast line), resulted that geochemical characteristics of these waters are similar to the one of karsticAurisina
Spring. ! ese springs are located at about 3.5 km SE from the quarry. Sistiana waters are mixed waters due to two contributions:
the neoin" ltration waters and the one coming from a shallow circuit. Water table # uctuations are consistent with the ones
typical of the Karst system and its water level result heavily modi" ed during low water regime by the gate handling regulating
the out# ows at Timavo Springs in San Giovanni di Duino.
