This document discusses groundwater flow and hydrogeology of the Sandstone Ridge Area. It provides a conceptual model of the local hydrogeology, including: - Recharge from precipitation that flows through permeable sandstones in a westerly direction towards rivers and streams. - Springs and shallow wells tap small localized perched aquifers. Deeper boreholes access main sandstone aquifers and can have moderate to high yields. - The document also outlines sources of information on local hydrogeology and an exercise to catalogue well/borehole details from logs and maps.