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Groundwater quality data were collected in 5,000 wells between 1988-2001 by the National Water-Quality Assessment Project. About 1,500 of these wells were sampled again between 2002-2012 to...
Search relevance: 60.29 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:07 PM -
This record provides physical, chemical, and pathogenic bacteria water quality metrics collected between February 2023 to January 2025 to provide reference data of nearshore and watershed water...
Search relevance: 53.91 | Views last month: 4 | Catalog Last Checked: October 26, 2026 at 10:01 PM -
As part of the Triangle Area Water Supply Monitoring Project, the U.S. Geological Survey conducted a study to evaluate the occurrence and distribution of phytoplankton, taste-and-odor compounds,...
Search relevance: 51.46 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:09 PM -
Source water for West Virginia’s public water systems is pumped from groundwater aquifers or withdrawn from the state’s rivers and lakes. These systems provide drinking water to a majority of the...
Search relevance: 50.26 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:31 PM -
This record provides physical and chemical water quality metrics collected between February 2023 to January 2025 to provide reference data of nearshore and watershed water quality on the island of...
Search relevance: 50.08 | Views last month: 1 | Catalog Last Checked: August 02, 2026 at 11:49 PM -
The U.S. Geological Survey collected water-quality samples from 3,359 sites between May 2004 and November 2024 for the California Groundwater Ambient Monitoring and Assessment Program Priority...
Search relevance: 48.94 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 10:01 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater quality data were collected from 5,000 wells between 1988-2001 by the National Water-Quality Assessment Project. Samples are...
Search relevance: 48.32 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:28 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey’s National...
Search relevance: 48.12 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:09 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National Water-Quality...
Search relevance: 47.69 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 10:38 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National Water-Quality...
Search relevance: 46.88 | Views last month: 0 | Catalog Last Checked: September 10, 2026 at 10:14 PM -
The U.S. Geological Survey collected water-quality samples from 3,199 sites between May 2004 and April 2022 for the California Groundwater Ambient Monitoring and Assessment Program Priority Basin...
Search relevance: 46.55 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:23 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National Water-Quality...
Search relevance: 46.52 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:45 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National Water-Quality...
Search relevance: 46.26 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:25 PM -
Evaluating Decadal Changes in Groundwater Quality: Groundwater-quality data were collected from 5,000 wells between 1988-2001 (first decadal sampling event) by the National Water-Quality...
Search relevance: 45.64 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:51 PM -
This data release documents dibromochloropropane (DBCP) data and environmental tracer data used to evaluate long-term trends and the history of DBCP in recharge in California groundwater. DBCP...
Search relevance: 45.52 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 10:15 PM
