Geochemical Evidence of Groundwater Flow Paths and the Fate and Transport of Constituents of Concern in the Alluvial Aquifer at Fort Wingate Depot Activity, New Mexico (2009) by Andrew Robertson, David Henry | | NOOK Book (eBook) | Barnes & Noble
Geochemical Evidence of Groundwater Flow Paths and the Fate and Transport of Constituents of Concern in the Alluvial Aquifer at Fort Wingate Depot Activity, New Mexico (2009)

Geochemical Evidence of Groundwater Flow Paths and the Fate and Transport of Constituents of Concern in the Alluvial Aquifer at Fort Wingate Depot Activity, New Mexico (2009)

by Andrew Robertson, David Henry
     
 
As part of an environmental investigation at Fort Wingate
Depot Activity, New Mexico, the U.S. Geological Survey,
in cooperation with the U.S. Army Corps of Engineers,
interpreted aqueous geochemical concentrations to better
understand the groundwater flow paths and the fate and
transport of constituents of concern in the alluvial aquifer

Overview

As part of an environmental investigation at Fort Wingate
Depot Activity, New Mexico, the U.S. Geological Survey,
in cooperation with the U.S. Army Corps of Engineers,
interpreted aqueous geochemical concentrations to better
understand the groundwater flow paths and the fate and
transport of constituents of concern in the alluvial aquifer
underlying the study area. The fine-grained nature of the
alluvial matrix creates a highly heterogeneous environment,
which adds to the difficulty of characterizing the flow of
groundwater and the fate of aqueous constituents of concern.
The analysis of the groundwater geochemical data collected
in October 2009 provides evidence that is used to identify
four groundwater flow paths and their extent in the aquifer
and indicates the dominant attenuation processes for the
constituents of concern.
The extent and interaction of groundwater flow paths
were delineated by the major ion concentrations and their
relations to each other. Four areas of groundwater recharge
to the study area were identified based on groundwater
elevations, hydrogeologic characteristics, and geochemical
and isotopic evidence. One source of recharge enters the study
area from the saturated alluvial deposits underlying the South
Fork of the Puerco River to the north of the study area. A
second source of recharge is shown to originate from a leaky
cistern containing production water from the San AndresGlorieta aquifer. The other two sources of recharge are shown
to enter the study area from the south: one from an arroyo
valley draining an area to the south and one from hill-front
recharge that passes under the reported release of perchlorate
and explosive constituents. The spatial extent and interaction
of groundwater originating from these various sources along
identified flow paths affect the persistence and attenuation of
constituents of concern

Product Details

ISBN-13:
2940148903628
Publisher:
ReadCycle
Publication date:
12/21/2013
Sold by:
Barnes & Noble
Format:
NOOK Book
File size:
372 KB

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