2013 NGWA Summit — The National and International Conference on Groundwater

Temporal Variability in Groundwater Hydrochemistry Induced by Salt Water Intrusion at a Road Salt Facility

Tuesday, April 30, 2013: 1:15 p.m.
Regency West 6 (Hyatt Regency San Antonio)
Houbao Li, University of Massachusetts Amherst
Camelia Rotaru, University of Massachusetts
Erich S. Hinlein, University of Masschusetts Amherst

Road salt application and storage for winter maintenance has heavily affected groundwater quality in surrounding areas. Groundwater samples from 70 monitoring wells in 20 clusters were collected monthly or quarterly at a salt/storage facility from 1997 to 2008. All the samples were analyzed in the laboratory for constituents of major anions, cations and total inorganic carbon. The hydrochemical characterization of groundwater shows cation exchange induced by salt water intrusion plays a key role for groundwater hydrochemical evolution in shallow and middle water groups. Ten years observation indicates shallow well contamination was being reduced by the relative pure recharge from ground surface, whereas, middle well contamination was accumulating due to salt water percolating. Most of the deep wells were still under natural generated stage and controlled by rock weathering process. The contamination of groundwater at this glacial till drumlin is a slow process and influenced by well locations and aquifer hydraulics.

Houbao Li , University of Massachusetts Amherst

Houbao Li is a Ph.D. candidate at the University of Massachusetts at Amherst, majoring in Civil Engineering. Her research interests include fate and transport of inorganic carbon in the aquifer and the groundwater hydrochemical evolution in salt-contaminated areas. Li has rich experience in conducting field sampling, laboratory analysis, and data analysis.

Camelia Rotaru , University of Massachusetts
Camelia Rotaru is a Post Doctoral Research Associate at University of Massachusetts Amherst.

Erich S. Hinlein , University of Masschusetts Amherst
Erich Hinlein is a research assistant professor in University of Massachusetts Amherst.