Arsenic variability and groundwater age in three water supply wells in southeast New Hampshire

Three wells in New Hampshire were sampled bimonthly over three years to evaluate the temporal variability of arsenic concentrations and groundwater age. All samples had measurable concentrations of arsenic throughout the entire sampling period and concentrations in individual wells had a mean variat...

Full description

Saved in:
Bibliographic Details
Published in:Di xue qian yuan. 2019-09, Vol.10 (5), p.1669-1683
Main Authors: Levitt, Joseph P., Degnan, James R., Flanagan, Sarah M., Jurgens, Bryant C.
Format: Article
Language:English
Subjects:
Age
Age tracers
Annual variations
Aquifers
Arsenic
Arsenic variability
Bedrock
Contaminants
Correlation analysis
Geochemical time series
Groundwater
Groundwater age modeling
Sampling
Sediments
Water levels
Water supply
Water wells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three wells in New Hampshire were sampled bimonthly over three years to evaluate the temporal variability of arsenic concentrations and groundwater age. All samples had measurable concentrations of arsenic throughout the entire sampling period and concentrations in individual wells had a mean variation of more than 7 μg/L. The time series data from this sampling effort showed that arsenic concentrations ranged from a median of 4 μg/L in a glacial aquifer well (SGW-65) to medians of 19 μg/L and 37 μg/L in wells (SGW-93 and KFW-87) screened in the bedrock aquifer, respectively. These high arsenic concentrations were associated with the consistently high pH (median ≥ 8) and low dissolved oxygen (median
ISSN:1674-9871
2588-9192
DOI:10.1016/j.gsf.2019.01.002