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National Primary Drinking Water Regulations (NPDWRs or primary standards) are legally enforceable standards that apply to public water systems. Primary standards protect public health by limiting...
Search relevance: 1.00 | Views last month: 29 | Catalog Last Checked: May 01, 2026 at 06:08 PM -
This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: May 05, 2026 at 08:17 PM -
A survey of sediment toxicity was carried out by NOAA's National Status and Trends Program in the coastal bays that surround Long Island Sound in New York and Connecticut. The survey objectives...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: July 14, 2026 at 09:24 PM -
This study was based on the sediment quality triad (SQT) approach. A stratified probabilistic sampling design was utilized to characterize the Kachemak Bay system in terms of chemical...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: July 14, 2026 at 09:24 PM -
In response to the growing concerns among Chugach communities, contaminant body burden and histopathological condition of chum and sockeye salmon (Oncorhynchus keta and Oncorhynchus nerka) and the...
Search relevance: 1.00 | Views last month: 17 | Catalog Last Checked: July 14, 2026 at 09:26 PM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 16 | Catalog Last Checked: May 28, 2026 at 04:58 AM -
This study was based on the sediment quality triad (SQT) approach. A stratified probabilistic sampling design was utilized to characterize the San Francisco Bay system in terms of chemical...
Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: July 14, 2026 at 09:27 PM -
Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in...
Search relevance: 1.00 | Views last month: 13 | Catalog Last Checked: May 05, 2026 at 08:08 PM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: May 28, 2026 at 04:58 AM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: May 28, 2026 at 04:59 AM -
This dataset provides estimates of residential septic tank densities at 12-digit Hydrologic Unit Code (HUC12), National Hydrography Dataset (NHD Plus version 2.1, 1:100k scale) catchment, and 2020...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: May 05, 2026 at 10:14 PM -
The National Contaminant Biomonitoring Program (NCBP), which was developed and maintained by the U.S. Fish and Wildlife Service (FWS), monitored concentrations of environmental contaminants in...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 09:49 PM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 28, 2026 at 04:59 AM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 28, 2026 at 04:58 AM -
The purpose of the project was to characterize the extent and magnitude of chemical contamination in southwest Puerto Rico, as part of a larger effort to link coral condition with chemical...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: July 14, 2026 at 09:27 PM -
The increasing amounts of discarded textiles represent a potentially valuable resource that could be reclaimed. This work underscores the significance of advancing chemical recycling techniques...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: August 02, 2025 at 03:55 PM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 28, 2026 at 04:59 AM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 28, 2026 at 04:58 AM -
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are processed using the IDEXX...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 28, 2026 at 04:58 AM -
Particulate samples were collected from a fish hatchery in Puyallup, Washington, September 18 – 20, 2023 during late summer, low-flow conditions in the intake creek. Settled solids were collected...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 09:39 PM
