Lisbon Valley Mining Co. LLC is a privately owned entity located in San Juan, Utah, with a primary purpose of water supply. The dam associated with Lisbon Valley Mining Co. LLC is an earth dam standing at a hydraulic height of 25.5 feet and a structural height of 26 feet. This dam, with a length of 1160 feet, provides a storage capacity of 63.9 acre-feet for water supply purposes.

The Utah Division of Water Rights serves as the state regulatory agency for Lisbon Valley Mining Co. LLC, overseeing permitting, inspection, and enforcement processes. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The last inspection date is unspecified, but the inspection frequency is set at every 5 years.

While the risk management measures and emergency preparedness details are not explicitly mentioned in the data, Lisbon Valley Mining Co. LLC operates under the jurisdiction and regulatory oversight of the state of Utah, ensuring the safety and functionality of its water supply infrastructure for the benefit of the community and the environment.