Northeastern Section - 42nd Annual Meeting (1214 March 2007)
Paper No. 18-8
Presentation Time: 3:40 PM-4:00 PM


BENOTTI, Mark J.1, FISHER, Shawn C.1, TERRACCIANO, Stephen A.1, and BROWNAWELL, Bruce J.2, (1) Water Resources Division, US Geological Survey, 2045 Route 112, Building 4, Coram, NY 11727,, (2) Marine Sciences Research Center, Stony Brook University, Stony Brook, NY 11794-5000

Pharmaceuticals have been shown to infiltrate ground water systems in areas susceptible to wastewater contamination. Here, we present and compare data from two studies, conducted by Stony Brook University and the U.S. Geological Survey regarding pharmaceutical occurrence in susceptible ground water wells of Suffolk County, NY. Both studies targeted wells which were proximate to permitted wastewater treatment facilities discharging to ground water, although the Stony Brook wells were generally shallower (68 +/- 31 ft) and closer (0.25 +/- 0.23 mi) than the USGS wells (250 +/- 132 ft and 0.73 +/- 0.83 mi) to the point source. Both methods employed solid phase extraction followed by LC-MS and targeted similar suites of compounds. Pharmaceuticals were detected in both studies, and the range of detected concentrations was generally 1-200ng/L. Acetaminophen, caffeine, carbamazepine, nicotine, paraxanthine and sulfamethoxazole were detected in >50% of samples in the shallower wells, whereas only carbamazepine and sulfamethoxazole were detected in >5% of samples from the deeper wells. These ubiquities are consistent with other published frequencies of detection for pharmaceuticals in susceptible waters and suggest that these more frequently detected compounds are more persistent in ground water. The relative mobilities of pharmaceuticals in ground water were assessed by regarding the distributions of compounds, on three different occasions, in the well field of an adult assisted living care facility with an on-site wastewater treatment plant which discharges to ground water. These distributions, combined with laboratory sorption experiments, suggest that caffeine, carbamazepine, nicotine, paraxanthine and sulfamethoxazole have the potential for greatest transport in the subsurface. Other removal processes like microbial degradation were not investigated.

Northeastern Section - 42nd Annual Meeting (1214 March 2007)
General Information for this Meeting
Session No. 18
Health and Geology in the Northeast
University of New Hampshire: Huddleston Hall, Banquet Room
1:00 PM-4:45 PM, Monday, 12 March 2007

Geological Society of America Abstracts with Programs, Vol. 39, No. 1, p. 57

© Copyright 2007 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.