Martha G Nielsen
Martha Nielsen is a Hydrologist with the Upper Midwest Water Science Center.
Science and Products
Filter Total Items: 25
August Median Streamflow on Ungaged Streams in Eastern Aroostook County, Maine
Methods for estimating August median streamflow were developed for ungaged, unregulated streams in the eastern part of Aroostook County, Maine, with drainage areas from 0.38 to 43 square miles and mean basin elevations from 437 to 1,024 feet. Few long-term, continuous-record streamflow-gaging stations with small drainage areas were available from which to develop the equations; therefore, 24 parti
Authors
Pamela J. Lombard, Gary D. Tasker, Martha G. Nielsen
Estimated quantity of water in fractured bedrock units on Mt. Desert Island, and estimated ground-water use, recharge, and dilution of nitrogen in septic waste in the Bar Harbor area, Maine
In 2002, the U.S. Geological Survey, in cooperation with the town of Bar Harbor, Maine, and the National Park Service, conducted a study to assess the quantity of water in the bedrock units underlying Mt. Desert Island, and to estimate water use, recharge, and dilution of nutrients from domestic septic systems overlying the bedrock units in several watersheds in rural Bar Harbor.
Water quantity
Authors
Martha G. Nielsen
Hydrologic Data Collected in Small Watersheds on Mount Desert Island, Maine, 1999-2000
The US Geological Survey, in cooperation
with Acadia National Park, began collecting data
for two projects related to nutrient loading to
coastal estuaries on Mount Desert Island in 1999.
Streamflow data from 16 sites and chemical
concentration data from 14 sites in 13 small watersheds
on the island are presented in this report.
Data were collected from January 1999 to
September 2000. Cont
Authors
Martha G. Nielsen, James M. Caldwell, Charles W. Culbertson, Michael Handley
Hydrologic data for the Eastland Woolen Mill Superfund Site, Penobscot County, Corinna, Maine, March through June 1999
Hydrologic data were collected at the Eastland Woolen Mill Superfund Site, Corinna, Maine, from March 19, 1999 through June 11, 1999 as part of a study to formulate a geologic characterization and conceptual model of this study area. Data-collection consisted of measurements of water-surface elevations at 7 surface-water sites and 20 wells.
Authors
Martha G. Nielsen, Robert W. Dudley, Camille S. Parrish
Methyl tert-Butyl Ether (MTBE) in Ground Water, Air, and Precipitation at North Windham, Maine
Thirty-one monitoring wells in the Windham aquifer in North Windham, Maine, were sampled for methyl tert-butyl ether (MTBE) from July 1998 to May 1999. MTBE was detected in 35 percent of the wells sampled in the Windham aquifer. MTBE was detected in 64 percent of wells in the high-yielding part of the aquifer; these wells account for 82 percent of all wells with detectable MTBE. Land cover also
Authors
Martha G. Nielsen, John M. Peckenham
Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins
In a study of arsenic concentrations in public-supply wells in the New England Coastal Basins, concentrations at or above 0.005 mg/L (milligrams per liter) were detected in more samples of water from wells completed in bedrock (25 percent of all samples) than in water from wells completed in stratified drift (7.5 percent of all samples). Iron and manganese were detected (at concentrations of 0.05
Authors
Joseph D. Ayotte, Martha G. Nielsen, Gilpin R. Robinson, Richard B. Moore
Science and Products
Filter Total Items: 25
August Median Streamflow on Ungaged Streams in Eastern Aroostook County, Maine
Methods for estimating August median streamflow were developed for ungaged, unregulated streams in the eastern part of Aroostook County, Maine, with drainage areas from 0.38 to 43 square miles and mean basin elevations from 437 to 1,024 feet. Few long-term, continuous-record streamflow-gaging stations with small drainage areas were available from which to develop the equations; therefore, 24 parti
Authors
Pamela J. Lombard, Gary D. Tasker, Martha G. Nielsen
Estimated quantity of water in fractured bedrock units on Mt. Desert Island, and estimated ground-water use, recharge, and dilution of nitrogen in septic waste in the Bar Harbor area, Maine
In 2002, the U.S. Geological Survey, in cooperation with the town of Bar Harbor, Maine, and the National Park Service, conducted a study to assess the quantity of water in the bedrock units underlying Mt. Desert Island, and to estimate water use, recharge, and dilution of nutrients from domestic septic systems overlying the bedrock units in several watersheds in rural Bar Harbor.
Water quantity
Authors
Martha G. Nielsen
Hydrologic Data Collected in Small Watersheds on Mount Desert Island, Maine, 1999-2000
The US Geological Survey, in cooperation
with Acadia National Park, began collecting data
for two projects related to nutrient loading to
coastal estuaries on Mount Desert Island in 1999.
Streamflow data from 16 sites and chemical
concentration data from 14 sites in 13 small watersheds
on the island are presented in this report.
Data were collected from January 1999 to
September 2000. Cont
Authors
Martha G. Nielsen, James M. Caldwell, Charles W. Culbertson, Michael Handley
Hydrologic data for the Eastland Woolen Mill Superfund Site, Penobscot County, Corinna, Maine, March through June 1999
Hydrologic data were collected at the Eastland Woolen Mill Superfund Site, Corinna, Maine, from March 19, 1999 through June 11, 1999 as part of a study to formulate a geologic characterization and conceptual model of this study area. Data-collection consisted of measurements of water-surface elevations at 7 surface-water sites and 20 wells.
Authors
Martha G. Nielsen, Robert W. Dudley, Camille S. Parrish
Methyl tert-Butyl Ether (MTBE) in Ground Water, Air, and Precipitation at North Windham, Maine
Thirty-one monitoring wells in the Windham aquifer in North Windham, Maine, were sampled for methyl tert-butyl ether (MTBE) from July 1998 to May 1999. MTBE was detected in 35 percent of the wells sampled in the Windham aquifer. MTBE was detected in 64 percent of wells in the high-yielding part of the aquifer; these wells account for 82 percent of all wells with detectable MTBE. Land cover also
Authors
Martha G. Nielsen, John M. Peckenham
Relation of arsenic, iron, and manganese in ground water to aquifer type, bedrock lithogeochemistry, and land use in the New England coastal basins
In a study of arsenic concentrations in public-supply wells in the New England Coastal Basins, concentrations at or above 0.005 mg/L (milligrams per liter) were detected in more samples of water from wells completed in bedrock (25 percent of all samples) than in water from wells completed in stratified drift (7.5 percent of all samples). Iron and manganese were detected (at concentrations of 0.05
Authors
Joseph D. Ayotte, Martha G. Nielsen, Gilpin R. Robinson, Richard B. Moore