The Crowley Lake Watershed (HUC 18090102) covers an area of approximately 194 square miles in Eastern California. The area is characterized by a high-elevation mountainous terrain, with a Mediterranean climate that is prone to occasional droughts. The hydrology of the watershed is dominated by snowmelt runoff, especially during spring and early summer. The snowpack in the watershed is monitored by the California Department of Water Resources, with measurements taken at various locations throughout the winter. Surface water in the watershed is primarily stored in Crowley Lake, a reservoir on the Owens River. The lake has a storage capacity of approximately 183,000 acre-feet and is used for irrigation, municipal water supply, and recreation. The constituents of the reservoir are monitored regularly, with water quality parameters including turbidity, total dissolved solids, and temperature. In recent years, the area has seen a trend towards warmer and drier conditions, leading to increased wildfire risk and decreasing water availability.