Meeting/Event Information

AIPG MN December Luncheon - Micropollutants in Groundwater Downgradient from Wastewater Land Application Sites!

December 05, 2017
11:45 AM to 1:00 PM
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Radisson Hotel Roseville
2540 North Cleveland Avenue
Roseville, MN 55113


Registration for the AIPG MN Section December Luncheon is now open online! The cost is $21 for non-members and $16 for members when registering before Monday, December 4, 2017 at 11:00 AM. Students may attend free of charge by registering in advance. Same-day luncheon registration cost is $25.


Micropollutants in Groundwater Downgradient from Wastewater Land Application Sites

by Sarah Elliott, US Geological Survey


Presentation Abstract

Methods of wastewater land application, such as on-site treatment systems, are currently used in Minnesota. Wastewater discharges can contain micropollutants such as pharmaceuticals, personal care products, and other organic wastewater chemicals, which can affect soil and shallow groundwater. We evaluated the presence of micropollutants in shallow groundwater near wastewater land application sites. Two types of sites were targeted: (1) large subsurface treatment systems (LSTS) and (2) rapid infiltration basins (RIB). Thirty-four micropollutants were detected, 18 of which were pharmaceuticals. Maximum concentrations ranged from 1.1 (glyburide) to 960 (sulfamethoxazole) nanograms per liter. Results indicate that these land application methods can contribute to micropollutant loading of surface waters and domestic wells via groundwater discharge. 


Speaker Biography

Sarah Elliott is a hydrologist at the USGS Upper Midwest Water Science Center, in the Minnesota office. She received a B.S. in Environmental Science, Policy, and Management and a M.S. in Water Resources Science, both from the University of Minnesota. Sarah has been with the USGS since 2009 when she started as a student. Since working at the USGS, Sarah's work largely has focused on studies determining the occurrence of micropollutants in the environment and potential threats they pose to aquatic organisms. 


$16.00 AIPG Member

$21.00 Non-Member

$0.00 Student

$250.00 2018 Section Sponsor!

$0.00 Donation to Education Fund