dc.contributor.author	Gootee, B.F.
dc.contributor.author	Mahan, M.K.
dc.contributor.author	Love, D.S.
dc.date.accessioned	2018-11-10T01:07:25Z
dc.date.available	2018-11-10T01:07:25Z
dc.date.issued	2012-09-20
dc.identifier.citation	Gootee, B.F., Mahan, M.K. and Love, D.S., A summary of salinities in Arizona’s deep groundwater. Arizona Geological Survey Open File Report, OFR-12-26, 23 p.
dc.identifier.uri	http://hdl.handle.net/10150/630672
dc.description	The Department of Energy (DOE), including its National Energy Technology Laboratory (NETL) and West Coast Regional Carbon Sequestration Partnership (WESTCARB), established national programs to evaluate the technical feasibility of long-term subsurface geologic storage of carbon dioxide (CO2) produced by industrial activity. As part of a WESTCARB Phase III – Arizona Geological Characterization (contract No. 500-10-024), the Arizona Geological Survey (AZGS) is evaluating the potential for CO2 sequestration in permeable geologic formations that are below 800 meters (m) (2,624 feet) depth below land surface (bls). Calculating basin volume below 800 m depth is important because CO2 will only remain in a dense, near-liquid state at pressures corresponding to water overburden (hydrostatic pressure) at such depths. Successful sequestration requires both adequate permeability and porosity for large-volume CO2 injection, and an impermeable cap rock that will prevent movement of CO2 to shallower depths and potential escape to the atmosphere. Thus, research of storage potential is targeted at porous and permeable geologic formations with impermeable sealing strata in Cenozoic sedimentary basins in the Basin and Range province, and Paleozoic sedimentary formations in the Colorado Plateau province. Sediment volumes in the 88 Cenozoic basins in Arizona evaluated by Spencer (2011) total 42,247 cubic kilometers (km3), with almost half of the sediment volume in the largest ten basins. The initial screening of Cenozoic sedimentary basins with significant volume and depths (below 800 m), resulted in ten candidate basins (Spencer 2011). Part of the evaluation process is to assess CO2 storage potential and includes identifying geologic formations below 800 m depth, where groundwater salinity concentrations exceed 10,000 milligrams per liter (mg/L) of total dissolved solids (TDS). This concentration represents the threshold above which water is considered non-potable and unsuitable as drinking water (United States Environmental Protection Agency (US EPA), (US EPA 2012). This report presents the results of salinity-data collection throughout Arizona, the data sources and methods used, and a brief discussion of the results, especially with regard to areas in Arizona identified as having CO2 storage potential.
dc.language.iso	en
dc.publisher	Arizona Geological Survey (Tucson, AZ)
dc.relation.ispartofseries	OFR-12-26
dc.relation.url	https://library.azgs.arizona.edu/
dc.rights	Arizona Geological Survey. All rights reserved.
dc.subject	Arizona Geological Survey Open File Reports
dc.subject	Historic
dc.subject	Recent
dc.subject	Navajo County
dc.subject	Santa Cruz County
dc.subject	La Paz County
dc.subject	Yuma County
dc.subject	Greenlee County
dc.subject	Graham County
dc.subject	Gila County
dc.subject	Mohave County
dc.subject	Yavapai County
dc.subject	Cochise County
dc.subject	Pima County
dc.subject	Pinal County
dc.subject	Maricopa County
dc.subject	Coconino County
dc.subject	Apache County
dc.subject	Arizona
dc.subject	water well
dc.subject	total dissolved solids
dc.subject	TDS
dc.subject	salinity
dc.subject	groundwater
dc.subject	carbon sequestration
dc.title	A Summary of Salinities in Arizona’s Deep Groundwater

A Summary of Salinities in Arizona’s Deep Groundwater

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