Main Title |
Arsenic in New Jersey Coastal Plain Streams, Sediments, and Shallow Groundwater: Effects from Different Geologic Sources and Anthropogenic Inputs on Biogeochemical and Physical Mobilization Processes. |
Author |
J. L. Barringer ;
P. A. Reilly ;
D. D. Eberl ;
A. C. Mumford ;
W. M. Benzel
|
Other Authors |
|
CORP Author |
Geological Survey, Reston, VA.; New Jersey Dept. of Environmental Protection, Trenton. |
Year Published |
2013 |
Report Number |
USGS/SIR-2013-5107 |
Stock Number |
PB2015-100121 |
Additional Subjects |
Geologic faults ;
Seismic surveys ;
Ground water ;
New Jersey ;
Mapping ;
Sediments ;
Shallow groundwater ;
Ecology ;
Biogeochemistry ;
Arsenic ;
Potable water ;
Public health ;
Water pollutants ;
Research ;
Risk assessment ;
Regulations ;
Tables(Data) ;
Figures(Data) ;
New Jersey Coastal Plain Streams
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB2015-100121 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
50p |
Abstract |
Arsenic (As) concentrations in New Jersey Coastal Plain streams generally exceed the State Surface Water Quality Standard (0.017 micrograms per liter (ig/L)), but concentrations seldom exceed 1 ig/L in filtered stream-water samples, regardless of geologic contributions or anthropogenic inputs. Nevertheless, As concentrations in unfiltered stream water indicate substantial variation because of particle inputs from soils and sediments with differing As contents, and because of discharges from groundwater of widely varying chemistry. In the Inner Coastal Plain, streams draining to lower reaches of the Delaware River traverse As-rich glauconitic sediments of marine origin in which As contents typically are about 20 milligrams per kilogram (mg/kg) or greater. In some of these sedimentary units, As concentrations exceed the New Jersey drinking-water maximum contaminant level (5 ig/L) in shallow groundwater that discharges to streams. Microbes, fueled by organic carbon beneath the streambed, reduce iron (Fe) and As, releasing As and Fe into solution in the shallow groundwater from geologic materials that likely include (in addition to glauconite) other phyllosilicates, apatite, and siderite. When the groundwater discharges to the stream, the dissolved Fe and As are oxidized, the Fe precipitates as a hydroxide, and the As sorbs or co-precipitates with the Fe. Because of the oxidation/precipitation process, dissolved As concentrations measured in filtered stream waters of the Inner Coastal Plain are about 1 ig/L, but the total As concentrations (and loads) are greater, substantially amplified by As-bearing suspended sediment in stormflows. |
Supplementary Notes |
Sponsored by New Jersey Dept. of Environmental Protection, Trenton. |
Availability Notes |
Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. |
PUB Date Free Form |
2013 |
Category Codes |
48F; 48G; 48C; 48B; 48I; 68G; 57B; 57U |
NTIS Prices |
PC A04 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
102000100 |
Origin |
NTIS |
Type |
CAT |