Clearwell Phase 2 is a public utility infrastructure located in Martinez, California, along Grayson Creek. This Earth-type dam stands at a height of 30 feet and was completed in 1977 with a storage capacity of 100 acre-feet. Designed primarily for water supply purposes, it also serves to reduce flood risks in the area. The dam has a low hazard potential and is deemed to be in satisfactory condition as of the last assessment in September 2017.

Managed by the California Department of Water Resources and regulated under the Safety of Dams program, Clearwell Phase 2 undergoes regular inspections with a frequency of once every year. The dam's location in Contra Costa County, under the jurisdiction of both the state and federal agencies, ensures that it meets all permitting, inspection, and enforcement requirements. With its proximity to the city of Martinez and oversight by Representative Mark DeSaulnier, the dam plays a crucial role in maintaining water resources and mitigating potential risks in the region.

Despite its modest size and capacity, Clearwell Phase 2's strategic placement and operational efficiency make it a vital component of the local water supply infrastructure. As climate change continues to impact water resources and weather patterns, the proper maintenance and regulation of dams like Clearwell Phase 2 are essential for ensuring water security and resilience against natural disasters in the future.