PPT-Groundwater Protection Determination Letters

Norman Gearhart PG Manager Groundwater Advisory Unit Groundwater Advisory Unit Purpose Provide recommendations for groundwater to be protected during oil and gas drilling and production Evaluate Saltwater Disposal Well applications for geologic isolation from the base of usablequality water and injection below the underground source of drinking water. Use of brackish groundwater could supplement or in some places replace the use of freshwater sources and enhance our Nations water security However a better understanding of the location and charac ter of brackish groundwater is needed to expand dev Hydraulic Head. Bernoulli’s Equation. Hydrostatic Pressure. Hydraulic Head. Bernoulli’s Equation. Hydrostatic Pressure. Hydraulic Head. Total Hydraulic Head (drop velocity – why?). . Or. and Management. Kenneth D. Schmidt. Principal. Kenneth D. Schmidt & Associates. Water-Level Hydrographs . for Wells East of Sanger. Water-Level Hydrographs . for Well Southwest of Madera. Water-Level Hydrographs for . Much of the global H. 2. O, resides below the surface of the Earth in what geologists refer to as . groundwater. . . Although in the subsurface, it has a large impact on society and the features that we see on the surface of the Earth.. By. Cindy A. Forbes, P.E., Chief. Southern California Field Operations Branch. California Department of Public Health. Cindy.Forbes@cdph.ca.gov. December 2011. 1. 2. Workshop Presenters. Cindy Forbes—Southern California Branch Chief. Makes up 23% of Earth’s freshwater.. 12% Shallow (we can reach). 11% Deep (out of our reach). Underground Layers. When precipitation occurs, water often seeps down into the soil and trickles down in between particles of soil and through cracks and spaces in layers of rock. . LA’s Water Resources. You may be familiar with Spring water… . Aquifer:. A water-bearing. rock. that readily transmits water to wells and springs . Water Bearing Rock??. Let’s investigate!. notes. 2. Groundwater Sampling. Sampling a well with a tennis shoe?. Standards, Directives, Guidelines................... 4. Standards, Directives, Guidelines. Hierarchy:- “more or less a general consensus” EN/AS/NZS=. W. ater. Chapters 10, 11, & 12. Breaking down rocks by physical means, like . ice, wind, water, gravity, and plants/animals. Ice wedging. occurs when water squeezes into cracks in rocks, freezes, expands, and cracks the rock open. Delphi . Corporation, . Wyoming. , . Michigan. Dr. Peter E. Riemersma. Department of Geology. Grand Valley State University. Allendale, Michigan. Geohydrology (Geo 440), 3 credit, . no lab, elective. Sustainable Groundwater Management Act: Engaging with GSAs. OUTLINE. Financing Collaboration & GSA . Formation . Short . Term/ . Immediate. DWR Facilitation Services & Technical . Assistance. Groundwater Sustainability Agency . Governance Formation. REGINA RUBIER. WATER RESOURCES MANAGER. CITY OF STOCKTON - MUNICIPAL UTILITIES DEPARTMENT. JANUARY 26, 2016. Agency Boundary Overlap. SEWD. WID. . G. . . D. S. Floridan Aquifer. Extent. Hydrologic Horizons. Pressure. Tension. θ. pwp. < . θ. < n. θ. fc. < . θ. < n. θ. = n. θ. = n. Geologic Profiles . (Stratigraphy). saturates . pore spaces of . bedrock.. The rate of movement of groundwater is gravity driven, varying between 0.6 inches per day (in sandstones) to several inches per year (in . granites. ). The source of groundwater is rain and melt water infiltrating and percolating through fractures/pores in soil and .