Recycled Groundwater Development at Harmony Grove, San Diego County, CA Cheryl Johnson M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. Kathy Thorbajarson -------------------------------------------------------------------------------- ABSTRACT The Harmony Grove Valley, located in an unincorporated area of northern San Diego County, California, is being considered as a location for underground storage, extraction, and re-use of treated,...

A Geochemical Evaluation of Enhanced In-Situ Bioremediation of Chlorinated Ethenes In Groundwater Shana McCartrhy M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. Kathy Thorbjarnarson -------------------------------------------------------------------------------- ABSTRACT Sites impacted with chlorinated solvents present unique technical challenges when compared to most other groundwater contaminants. Chlorinated volatile organic compounds...

Movement of water infiltrated from a recharge basin to wells David O'Leary M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. Kathy Thorbjarnarson Monday, April 25th, 2011 -------------------------------------------------------------------------------- ABSTRACT Local surface water and stormflow runoff were infiltrated intermittently from a 40 hectare basin between September 2003 and September 2007 to determine the feasibility of recharging...

The Accumulation and Distribution of Copper and Zinc on an Agricultural Field Fertilized With Liquid Swine Manure Marty Koehler M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. David Kimbrough Friday, December 10th, 2010 -------------------------------------------------------------------------------- ABSTRACT Liquid swine manure fertilizer (LSM) replenishes micronutrients into cropland but also contributes heavy metals that accumulate...

Groundwater and Surface Water Interactions at the Tijuana Estuary, San Diego County, California - The Tijuana Estuary is a unique coastal plain and wetland-dominated estuary influenced by tidal fluctuations and saltwater inflow from the Pacific Ocean and by intermittent freshwater inflow from the Tijuana River. The lower Tijuana River valley, the alluvial river valley that leads into the estuary, collects 96% of runoff in the 4,500 km2 Tijuana River watershed. Stream flow in the Tijuana...