California State University, Sacramento
Week 14: Geochemistry of natural waters
Upon completion of this unit students should be able to:
- Identify the major elements or compounds that are found in groundwater.
- List common sources and typical concentrations of major elements in ground water.
- Identify common sources of major element/compound pollution.
- Convert concentrations to equivalents per million.
Lecture 18: Fetter, pp. 373-382, 385-389
For a quick review of some basic chemistry you may also want to read Fetter, pp. 346-362.
City of Sacramento Water quality report (2005):
Homework Assignment: Aquifer analysis
Topic: Geochemistry of natural waters, Piper trilinear diagrams
Assignment: Class handout. Fill in the blanks for the five wells that have information missing. Calculate the equivalents per million (EPM) and % for each ion. Show your calculations for each well on a separate page. Plot each unknown water on the blank Piper Trilinear diagram.
Due date: TBA
60 points: Show your work on a separate page, and fill in the chart with EPM and % values for cations and anions in each of the five wells.
40 points: Plot and label the five wells on the blank Piper trilinear diagram.
Homework solution (Piper diagram):
Link to homework solution