This data set contains continuous water-surface elevation and water-quality (temperature, specific conductance, salinity, and turbidity) data recorded at 6- and 15-minute intervals, respectively, from two sites in the Bronx on the Harlem River -- Roberto Clemente State Park and Mill Pond Park. Water elevation was monitored every second to detect changes indicative of boat wakes expected to resuspend bed sediment from nearby alcoves. Boat wake detection triggered the collection of 1-second interval water elevation and 1-minute interval turbidity data. In addition to continuous data, grab samples for fecal indicator bacteria (Enterococci) and total suspended solids were collected weekly from - March to September, 2021.

The accession contains New York City Department Harbor Survey Data from years 1968 to 1990. Station data was collected as part of the NYC Department of Environmental Protection's Harbor Survey at the Hudson River along Manhattan, New York Bight, Long Island Sound. Parameters measured were salinity, dissolved oxygen, total coliform counts/ml, and fecal coliform counts/100 ml were recorded as 80-column ASCII files (SAS file format); each line in the file represents sampling data from a single site per day. Data was submitted on a diskette. A hardcopy of a README file which interprets the file format and a map of the study site is included in the documentation. Principal Investigator was Dr. Alan I. Stubin of Institute: NYC DEP (Marine Science Branch, Ward's Island).

This U.S. Geological Survey (USGS) Data Release provides high-resolution, nearshore, spatial water-quality data collected from Seneca Lake, New York, on July 9-10 and October 9-10, 2019. All data are reported as raw measured values and are not rounded to USGS significant figures. Continuous water-quality monitors were mounted to a boat at approximately 0.5-meters below the water surface and used to measure water nitrate, chlorophyll fluorescence (fChl), fluorescent dissolved organic matter (fDOM), dissolved oxygen, specific conductance, phycocyanin fluorescence (fPC), turbidity, pH, and temperature.

This U.S. Geological Survey (USGS) Data Release provides high-resolution, nearshore, spatial water-quality data collected from Seneca Lake, New York, on July 9-10 and October 9-10, 2019. All data are reported as raw measured values and are not rounded to USGS significant figures. Continuous water-quality monitors were mounted to a boat at approximately 0.5-meters below the water surface and used to measure water nitrate, chlorophyll fluorescence (fChl), fluorescent dissolved organic matter (fDOM), dissolved oxygen, specific conductance, phycocyanin fluorescence (fPC), turbidity, pH, and temperature.

Onsite wastewater disposal systems (OWDS) in coastal regions of Long Island, New York, contribute bacteria, nutrients, and organic wastewater-associated compounds (including pharmaceuticals, personal care and domestic use products referred to here as contaminants of emerging concern (CECs)) to downgradient shallow groundwater in nearshore settings. Many of the densely populated areas along the East Coast (i.e. Long Island, New York) are served by OWDS. Approximately 75 percent of Suffolk County, New York, residents rely on simple OWDS such as a series of cesspools (ground pits lined with cement blocks or rings without a sealed bottom) and septic systems. Cesspools provide minimal wastewater treatment, typically relying on bacteria to breakdown the solid waste while untreated water percolates into the sandy surficial aquifer. The high hydraulic conductivity of the sandy surficial aquifer of the New York coastal region makes these areas particularly vulnerable to organic wastewater contamination. Groundwater samples were collected from the shallow groundwater flow system along the shoreline of (1) a barrier island summer community and (2) the mainland of Long Island. Both locations are distinctive coastal communities in Suffolk County, NY, and typically rely on a simple OWDS system. The coastal communities selected are in areas inundated by the storm tide brought on by Hurricane Sandy and are considered vulnerable to extreme storms (i.e. hurricanes and nor’easters), flooding events, and sea-level rise; all of which can damage wastewater infrastructure and lead to biogeochemical changes that disrupt the level of onsite treatment and result in increased discharge of contaminants to estuaries through groundwater seepage. Specific locations were selected in areas along the shore that are within 180 m downgradient from OWDS and just above the reaches of the spring high-tide mark along the shoreline. For our study, beach areas without bulkheads (a retaining wall built for shoreline protection) were targeted due to the need to access areas downgradient of OWDS. Twenty-nine of the 103 pharmaceuticals measured were detected at least once at the NY sample locations. Other detected CECs include PCDUs (caffeine, nicotine, and metabolites), methyl-1H-benzotrizole (a corrosion inhibitor), and piperonyl butoxide (a pesticide synergist). Lidocaine, an over-the-counter topical anesthetic, was the most commonly detected pharmaceutical (35% of samples). Other commonly detected pharmaceuticals included fexofenadine (an over-the-counter antihistamine detected in 30% of samples), and carbamazepine (an anticonvulsant), desvenlafaxine (antidepressant), meprobamate (an anxiolytic), metformin (an antidiabetic), and tramadol (an opioid) each detected in 25% of the samples.

This U.S. Geological Survey (USGS) Data Release provides high-resolution, nearshore, spatial water-quality data collected from Owasco Lake, New York, on June 26 and October 8, 2019. All data are reported as raw measured values and are not rounded to USGS significant figures. Continuous water-quality monitors were mounted to a boat at approximately 0.5-meters below the water surface and used to measure water nitrate, chlorophyll fluorescence (fChl), fluorescent dissolved organic matter (fDOM), dissolved oxygen, specific conductance, phycocyanin fluorescence (fPC), turbidity, pH, and temperature.

This U.S. Geological Survey (USGS) Data Release provides high-resolution, nearshore, spatial water-quality data collected from Owasco Lake, New York, on June 26 and October 8, 2019. All data are reported as raw measured values and are not rounded to USGS significant figures. Continuous water-quality monitors were mounted to a boat at approximately 0.5-meters below the water surface and used to measure water nitrate, chlorophyll fluorescence (fChl), fluorescent dissolved organic matter (fDOM), dissolved oxygen, specific conductance, phycocyanin fluorescence (fPC), turbidity, pH, and temperature.

From May to December 2017, 48 environmental samples and six quality control samples were collected throughout the Upper Hudson and Central New York River Basins. Samples were collected from nine production wells and 11 domestic wells in the Upper Hudson River Basin, and 14 production wells and 14 domestic wells in the Central New York River Basin. Of the total wells sampled, 22 were completed in bedrock and 26 were completed in sand and gravel. Approximately 20 percent of samples were collected from wells that were previously sampled as in 2007 and 2012. Groundwater samples were collected prior to any treatment or filtration systems, from existing domestic and production wells equipped with permanently installed pumps. Samples were collected and processed using standard USGS methods and were analyzed for 372 constituents including physicochemical properties, dissolved gases, major ions, nutrients, trace elements, pesticides, volatile organic compounds (VOCs), radiological activity, and indicator bacteria. All analytes are listed in the data release, along with the associated method detection and reporting limits, some of which changed over time. About 73 percent of constituents analyzed were not detected at concentrations greater than the method detection limit. Samples were analyzed at the USGS National Water Quality Laboratory (NWQL) in Denver, Colorado, and other certified laboratories following published methods. Quality assurance and quality control samples were collected and assessed in each of the sampled basins. In the Upper Hudson River Basin, one replicate was collected at well SA1091, and in the Central New York River Basin, one replicate was collected at well OW1677, and both were analyzed for all constituents. Replicates analyzed for dissolved gases, radionuclides, and indicator bacteria were collected at well RE4784 of the Upper Hudson River Basin and well OT1821 of the Central New York River Basin. Field blanks analyzed for major ions, dissolved solids, nutrients, organic carbon, trace elements, pesticides, and VOCs were collected at well OT1821 and well RE4784. The VOC 1,2,4-Trimethylbenzene was detected in blank samples and most of the groundwater samples, and contamination is suspected from the scintillation liquid in the radon sampling kits. Due to the potential for contamination bias, results for 1,2,4-Trimethylbenzene are not included.

From May to December 2017, 48 environmental samples and six quality control samples were collected throughout the Upper Hudson and Central New York River Basins. Samples were collected from nine production wells and 11 domestic wells in the Upper Hudson River Basin, and 14 production wells and 14 domestic wells in the Central New York River Basin. Of the total wells sampled, 22 were completed in bedrock and 26 were completed in sand and gravel. Approximately 20 percent of samples were collected from wells that were previously sampled as in 2007 and 2012. Groundwater samples were collected prior to any treatment or filtration systems, from existing domestic and production wells equipped with permanently installed pumps. Samples were collected and processed using standard USGS methods and were analyzed for 372 constituents including physicochemical properties, dissolved gases, major ions, nutrients, trace elements, pesticides, volatile organic compounds (VOCs), radiological activity, and indicator bacteria. All analytes are listed in the data release, along with the associated method detection and reporting limits, some of which changed over time. About 73 percent of constituents analyzed were not detected at concentrations greater than the method detection limit. Samples were analyzed at the USGS National Water Quality Laboratory (NWQL) in Denver, Colorado, and other certified laboratories following published methods. Quality assurance and quality control samples were collected and assessed in each of the sampled basins. In the Upper Hudson River Basin, one replicate was collected at well SA1091, and in the Central New York River Basin, one replicate was collected at well OW1677, and both were analyzed for all constituents. Replicates analyzed for dissolved gases, radionuclides, and indicator bacteria were collected at well RE4784 of the Upper Hudson River Basin and well OT1821 of the Central New York River Basin. Field blanks analyzed for major ions, dissolved solids, nutrients, organic carbon, trace elements, pesticides, and VOCs were collected at well OT1821 and well RE4784. The VOC 1,2,4-Trimethylbenzene was detected in blank samples and most of the groundwater samples, and contamination is suspected from the scintillation liquid in the radon sampling kits. Due to the potential for contamination bias, results for 1,2,4-Trimethylbenzene are not included.