On April 1, 2026, the City of Prescott’s Utilities Division began its annual surface water recharge operations at Watson Lake in accordance with state permitting requirements.
As part of this process, water levels at Watson Lake will gradually decrease over the next several weeks. The target level is approximately 7 feet below the spillway, representing about a 5-foot reduction from current levels.
Water released from the lake will flow down Granite Creek, where it will be collected and transferred to the Airport Recharge Basins. This process allows the water to return to the aquifer, helping offset groundwater used for domestic purposes and supporting the City’s long-term groundwater replenishment efforts. As a result, Granite Creek, south of the 89er Trailer Park, will have flowing water for the foreseeable future.
Surface water recharge operations are expected to continue through November 1, 2026, or until the target lake level is reached.
For public safety, residents and visitors are advised to stay clear of the dam area, as outflow conditions may create strong currents.
No other lakes will be affected by this recharge effort.
For questions and information contact Danielle Trotter, Public Engagement Manager at 928.777.1401 Ext. 4804 | danielle.trotter@prescott-az.gov