Water quality has been surprisingly good this year. Worst water quality is near and below Hwy 97. This stretch of river and lake has typically been an area that lacked significant fish densities to warrant much of a fishery. Dissolved oxygen concentrations in the summer approach 0 mg/l in many areas thus reducing fish densities. Water quality is declining fast in this area.

Recent sampling found good numbers of small, juvenile largemouth bass, Sacramento perch, yellow perch and even a few crappie. These findings are surprising. This is a very large area and anglers might be able to find largemouth bass and perch. Look for areas of water return from wetlands or pumps. These areas will have more oxygen and better water quality. The area near Lake Ewauna and below the Tule Smoke Hunt Club (Rat Club) are places to focus as water quality is typically better in those locations. The side channel area near the island below Hwy140 bridge might also be worth some effort.