hydrograph Maven July 19, 2013 « Back to Glossary IndexA hydrograph is a graph that shows some property of groundwater or surface waters over a period of time. Related Articles: NOTICE: San Joaquin River Restoration Program 2026 Restoration Flow Schedule ReleasedNOTEBOOK FEATURE: From roadways to waterways: The environmental toll of 6PPD-quinoneMET IMPORTED WATER SUBCOMM: Shaping the future of the Bay-Delta: The update to the Bay-Delta Water Quality Control PlanNOTEBOOK FEATURE: A closer look at how predation and flow impact salmon survivalSAN JOAQUIN RIVER RESTORATION PRGM: 2025 Restoration Flow Schedule Update« Back to Glossary Index