Samendra Sherchan, Department of Global Environmental Health Sciences, Tulane University, , New Orleans, LA, 70115, sshercha@tulane.edu Naegleria fowleri, also known as “the brain-eating amoeba”, is a free living amoebae found naturally in hot springs and warm surface waters. N. fowleri can cause primary meningoencephalitis (PAM), most often leading to death…
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Mary L. Barrett, Department of Geology & Geography, Centenary College of Louisiana, Shreveport, LA 71104: mbarrett@centenary.edu EXTENDED ABSTRACT At the Lake St. John (LSJ) Field, Concordia Parish, LA, dissolved arsenic in shallow groundwater (8 ft to 22 ft below ground surface) occurs in former emergency pit areas associated with tank…
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Hai V. Pham, Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, LA 70803: hpham28@lsu.edu; Frank T.-C. Tsai, Department of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, LA 70803: ftsai@lsu.edu This study develops a high-resolution three-dimensional groundwater model to simulate saltwater encroachment due to the massive…
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Hays Town, hays@hays.town The Southern Hills Aquifer located in southeastern Louisiana has provided residents of Baton Rouge and surrounding communities with high-quality, fresh drinking water for many decades. However in recent years increasing pumping rates, evidence of saltwater intrusion, and concerns about the equitable and sustainable use of the aquifer…
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Jeffrey S. Hanor, Department of Geology and Geophysics, Louisiana State University, Baton Rouge, LA 70803: hanor@lsu.edu Potable Na-HCO3 groundwaters are characteristic of siliciclastic aquifers in the Gulf of Mexico and Atlantic coastal plains. The origin of these waters has been variously attributed to cation (base) exchange and to silicate hydrolysis.…
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Dale J. Nyman, PG, 3168 Sherry Dr., Baton Rouge, LA, 70816: nyman7883@gmail.com The Baton Rouge “2000-foot” sand was one of the first aquifers developed in the Baton Rouge Industrial Area and provides insight into the groundwater development of the system. There are 10 aquifers named for their depth in the…
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Charles E. Heywood, 2131 Pleasant Hills Ct., Ridgeway, Colo. 81432, cheywood@usgs.gov; John K. Lovelace, 3535 S. Sherwood Forest Blvd., Suite 120, Baton Rouge, La. 70816, jlovelac@usgs.gov Groundwater withdrawals have caused saltwater to encroach into freshwater-bearing aquifers beneath Baton Rouge, Louisiana. Groundwater investigations in the 1960s identified a freshwater-saltwater interface located…
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Tony Duplican, Executive Director, 3535 South Sherwood Forest Blvd., Suite 137, Baton Rouge, LA 70816, tony@cagwcc.com Due to heavy pumping of certain aquifers within the Capital area, saltwater from the south has moved across the Baton Rouge Fault into some of the fresh water aquifers in East Baton Rouge Parish.…
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Navid H. Jafari, Civil and Environmental Engineering, Louisiana State University, Baton Rouge, LA, 70803, njafari@lsu.edu Evaluating the field-scale hydraulic conductivity and compressibility of soft organic clays that dominate fluvial-deltaic deposits is important for determining migration of contaminants and magnitude of subsidence. For example, the large concentration of chemical industry and…
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Bill Thaman, Freese and Nichols, Inc.10431 Morado Circle, Bldg 5, Ste 300, Austin, Texas 78759 wjt@freese.com; and Michael Turco, General Manager, Harris-Galveston Subsidence District, 1660 West Bay Area Boulevard, Friendswood, Texas 77546, mturco@subsidence.org Significant historical land subsidence, 6-10 feet in some areas, and about 13 feet in the Houston Ship…
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