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Harrisburg Chapter Meeting
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1/11/2018
When: January 11, 2018
6:30 PM
Where: Meeting: AEG Offices, 441 Friendship Rd Dinner: Fiesta Mexico
Dinner: Fiesta Mexico, 3957 Paxton St
Harrisburg, Pennsylvania 
United States
Contact: Rick Hoover

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HAGS/AEG – Meeting Announcement
Thursday, January 11, 2018 6:30 p.m.

Please RSVP secretaryhags@gmail.com by noon, Wednesday, January 9, 2018 if you plan to attend (1) the January 11, 2018 HAGS meeting, or (2) both the meeting AND pre-meeting dinner at Fiesta Mexico.  RSVPs are needed to make dinner reservations, and also to let our meeting hosts know if additional chairs need to be brought into the meeting room.  You do not need to RSVP if you will not be attending either the meeting or dinner. 

Evaluation of Radon Occurrence in Groundwater from 16 Geologic Units in Pennsylvania https://pubs.er.usgs.gov/publication/sir20175018

 

Presented by: Eliza Gross, Physical Scientist – USGS New Cumberland, PA office

 

Meeting Date:  Thursday, January 11, 2018

Meeting Time:  6:30 p.m.

 

Meeting Location: AEG Offices 441 Friendship Road (near Bass Pro Shop)

Dinner Location:  Fiesta Mexico 3957 Paxton Street

Dinner Time: beginning at 4:45 or whenever you get there

 

Abstract:   The EPA action level for air radon exposure is 4 picocuries per liter (pCi/L). Indoor air radon concentrations have been reported to increase by about 1 pCi/L for each 10,000 pCi/L in groundwater used for domestic supply. Radon concentrations in 16 Pennsylvania geologic units with 25 or more samples were evaluated to identify the potential contribution of radon from groundwater to indoor air. Radon concentrations in 1,041 groundwater samples collected in 16 geologic units met the criteria for evaluation. Median radon concentrations in groundwater samples (155- 4,300 pCi/L) and indoor air samples (2.1-6.4 pCi/L) were used to classify radon exposure potential. Geologic unit exposure potential classifications were mapped with public water-supply service areas to identify exposure potential of populations using domestic wells. Resulting maps are meant to promote public awareness of the potential contribution of radon from groundwater to indoor air and to inform Pennsylvania’s citizens of associated health risks.

 

Speaker Bio:  Eliza Gross is a Physical Scientist with the U.S. Geological Survey Pennsylvania Water Science Center in New Cumberland, PA. Her most recent publications involve evaluations of radon occurrence in groundwater and indoor air in Pennsylvania and groundwater quality in Lycoming County, PA. She has worked on multiple groundwater-water quality projects involving geospatial and statistical analysis of groundwater-quality data and the relation of groundwater-quality concentrations to human health standards.

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