The purpose of the Harrisburg Area Geological Society (HAGS) is to stimulate geologic thought, advance and disseminate geologic knowledge, and provide fellowship amongst area individuals interested in earth sciences. Monthly meetings (at GTS Technologies at 441 Friendship Road in Harrisburg) present a realm of geologic topics, ranging from tectonics, coal, carbonate groundwater geochemistry, Martian geomorphology, engineering geophysics, nuclear waste repositories, and ore mineralogy. Field trips allowed members to visit geologic sites within and beyond Pennsylvania. All events are open to the public and free unless otherwise stated. Meetings are at GTS Technologies, 441 Friendship Rd, Harrisburg, PA 17111
President- Kent Littlefield- KENT.V.LITTLEFIELD@leidos.com
Vice-president- Bill Bruck- firstname.lastname@example.org
Treasurer- Jeb Baxter- email@example.com
Secretary- Amy Randolph- firstname.lastname@example.org
Up coming events :1-11-18 HAGS mtg Gross Rn in GW in PA
January 11, 2018 – Eliza Gross, Physical Scientist, USGS New Cumberland, PA – Evaluation of Radon Occurrence in Groundwater from 16 Geologic Units in Pennsylvania. See also https://pubs.er.usgs.gov/publication/sir20175018.
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.
February 8, 2018 – Dr. Timothy Bechtel, P.G. F&M College – new research into the Source of the bubble at Boiling Springs, Cumberland County
March 8, 2018 – Jonathan Relyea, P.G., Project Geologist, American Engineers Group (AEG) – State Route 11/15 Rock Slope Safety Improvement Projects, Duncannon and Marysville, PA
April 12, 2018 – Mark W. Eisner, P.G., President – Advanced Land and Water, Inc. (Maryland) – Nitrates in Rural Groundwater Supply Wells not from Farming: An Unexpected Finding Based on Forensic Hydrogeology
May 10, 2018 –(tentative) Dr. Jorge A. Santiago-Blay, Department of Paleobiology with the Smithsonian Institute, research into amber.
HAGS Guidebooks, available for purchase, $5 each, plus $2 S7H. Multiple books may have discounted shipping.
1st Annual Field Trip‐Geology in the South Mountain area, Pennsylvania, Noel Potter, Jr., editor, April 24, 1982, Reprinted 1992. 37 p. $5.00 plus $2.00 S&H.
2nd Annual Field Trip‐ Geology along the Susquehanna River, south‐central Pennsylvania, J. Ronald Mowery, editor, April 16, 1983, 55 p. $5.00 plus $2.00 S8H.
3rd Annual Field Trip‐ Stratigraphy, structural style, and economic geology of the York‐Hanover Valley, G. Robert Ganis and David Hopkins, April 28,1984, 51 p. $5.00 plus $2.00 S&H.
4th Annual Field Trip‐ Pennsylvania’s polygenetic landscape, William D. Sevon, April 27, 1985, Reprinted 1992, 55 p. $5.00 plus $2.00 S&H.
5th Annual Field Trip‐ Selected geology of Dauphin and Northumberland Counties, Pennsylvania, by W. D. Sevon, W. E. Edmunds, G. R. Ganis, and J. P. Wilshusen, May 17, 1986, 22 p. $5.00 plus $2.00 S&H.
6th Annual Field Trip‐ Lower Jurassic diabase and the Battle of Gettysburg, D. T. Hoff, J. R. Mowery, and G. R. Ganis, April 25, 1987,17 p. plus appendices. $5.00 plus $2.00 S&H.
7th Annual Field Trip‐ The geology of the Lower Susquehanna River area, a new look at some old answers, Glenn H. Thompson, Jr., editor, May 7,1988, 56 p. $5.00 plus $2.00 S&H.
8th Annual Field Trip‐ Karst development and environmental geology in the carbonate rocks of the Lehigh and Lebanon Valleys, William E. Kochanov, April 29, 1989, 33 p. $5.00 plus $2.00 S&H.
In cooperation with the 20th annual Binghamton Geomorphology Symposium at Dickinson College‐The rivers and valleys of Pennsylvania, then and now, by William D. Sevon, October 20, 1989, 59 p. $5.00 plus $2.00 S&H.
10th Annual Field Trip‐ The Ridge and Valley Physiographic Province and the East Broad Top Railroad, William D. Sevon, June 1, 1991, 24 p. $5.00 plus $2.00 S&H.
11th Annual Field Trip‐ Paleozoic geology of the Paw Paw‐Hancock area of Maryland and West Virginia, Marcus M. Key and Noel Potter, Jr., May 9,1992, 25 p. $5.00 plus $2.00 S&H.
12th Annual Field Trip‐ South Mountain and the Triassic in Adams County, Pennsylvania, Raymond Britcher, editor, May 22, 1993, 41 p. $5.00 plus $2.00 S&H.
13th Annual Field Trip‐ Geology of the Lebanon Valley and western end of the Reading Prong, Charles Scharnberger, editor, April 23. 1994, 68 p. $5.00 plus $2.00 S&H.
15th Annual Field Trip‐ Pseudo‐Morainic Topography of the Allentown Area of Eastern Pennsylvania, Duane D. Braun and William E. Kochanov, May 4, 1996, 28 p. $5.00 plus $2.00 S&H.
16th Annual Field Trip‐ Notes on the Hamburg Klippe: biostratigraphy, ash layers, olistostromes, and “exotics,” G. Robert Ganis, April 26, 1997, 52 p. $5.00 plus $2.00 S&H
17th Annual Field Trip‐ Geomorphology in the Northern Cumberland Valley, PA, including the Carlisle Deluge of 1779, Noel Potter, Jr., Donald Hartman, and Helen Delano, April 18, 1998, 49 p, $5.00 plus $2.00 S&H.
18th Annual Field Trip‐ The Cove Syncline by canoe, William M. Roman and Michael A. Knight, May 15, 1999, 16 p. plus maps, Out of Print
19th Annual Field Trip‐ Geology of the Kishacoquillas Valley and vicinity, Mifflin County, Pennsylvania, Michael A. Knight and William M. Roman, May 20, 2000, 18 p. plus maps and sections, $5.00 plus $2.00 S&H.
20th Field Trip‐ Geology and Geomorphology of the South Mountain Area, Cumberland and Franklin Counties, Pennsylvania, Noel Potter, Jr., and William D. Sevon, May 14, 2011, 64 p., $5.00 plus $2.00 S&H.
21st Field Trip‐ Shermans Creek from Dellville to Duncannon, Perry County, Pennsylvania, William Roman, May 12, 2012, 48 pages, color, $5.00 plus $2.00 S&H.
22nd Field Trip‐ Some geological aspects of the north side of the Cumebrland Valley in Cumberland County, PA, Bill Sevon, May 4, 2013, 33 pages, large font, color photos, $5.00 plus $2.00 S&H.
No formal guidebooks were prepared for the 9th (1990) and 14th (1995) Field Trips. The 2001 trip was a repeat of the 2000 trip.