Lolonis Vineyards, located in Calpella, Mendocino County, California, is not only a private vineyard but also plays a crucial role in water resource management. The dam on the property, completed in 1999, stands at a height of 67 feet and serves primarily for water supply purposes, including irrigation. With a storage capacity of 209 acre-feet, the dam helps support the vineyard's water needs while also contributing to the surrounding ecosystem.

Owned and regulated by the state of California, Lolonis Vineyards has been inspected regularly to ensure its structural integrity and safety. The dam, classified as an earth-type structure, poses a high hazard potential but has been assessed as satisfactory in condition. Its location on the Tr W Fk Russian River, within the Sacramento District, underscores the importance of responsible water management in this region.

With a surface area of 10 acres and a drainage area of 0.71 square miles, Lolonis Vineyards showcases a commitment to sustainable practices while harnessing water resources for agricultural productivity. This innovative approach, alongside its compliance with state regulations and regular inspections, highlights the vineyard's dedication to balancing water needs with environmental stewardship in the face of a changing climate.