ASDWA – USGS Webinar on Chemical and Microbial Contaminants in Drinking Water

On September 5, 2018, from 1:00 to 2:30 pm (eastern), ASDWA will host a webinar with the U.S. Geological Survey (USGS) entitled, “Understanding Chemical and Microbial Contaminants in Drinking Water:  Raw, Treated, and Tap Water.” The webinar will be presented in three segments to address key issues and questions of drinking water quality. The segments include:

  1. The USGS groundwater quality assessments in 11 principal drinking water aquifers across the US.
  2. The EPA and USGS collaborative effort to provide a more robust dataset on a wide range of chemical and microbial contaminants present in source and treated waters, along with a case example from a participating water utility in Massachusetts.
  3. The USGS partnership effort to quantify tap water exposure pathways in public and private water supplies.

For more information and to register for the webinar, visit ASDWA’s website.


Updated USGS Ground Water Quality Mapper

usgsThe U.S. Geological Survey (USGS) National Water Quality Program has updated its interactive web tool that maps decadal changes in groundwater quality across the nation. The web tool, Decadal Change in Groundwater Quality, now includes more groundwater well networks and data analyzed over a longer time span. In the update, groundwater quality data were added for an additional 218 wells in 6 well networks, increasing the number of wells to 1,718 and the number of well networks to 73.  Additionally, data for 14 well networks resampled during 2012–14 were incorporated, allowing the user to visualize changes across three roughly decadal sampling events for those networks since the 1990s.

Users of the web tool can easily visualize changes in both inorganic and organic constituent concentrations in groundwater, including chloride, nitrate, several pesticides, and some drinking-water disinfection byproducts. The website also includes a description of the methods used to evaluate changes in groundwater quality and a link to the complete set of data. For additional information on the groundwater-quality web tool, or for data and methods used, contact Bruce Lindsey (

RFP Now Open for Healthy Watersheds Consortium Grant Program

RFP Now Open for Healthy Watersheds Consortium Grant ProgramThe 2019 Request for Proposals (RFP) is now open for the Healthy Watersheds Consortium (HWC) Grant Program. The HWC is a partnership between the U.S. Endowment for Forestry and Communities, EPA, and the USDA Natural Resources Conservation Service (NRCS). Up to $1.2 million is available for projects that accelerate strategic protection of healthy, freshwater ecosystems and their watersheds (including drinking water watersheds) across the nation. The primary focus for proposals should be on the protection and stewardship of land in the watershed, rather than just water quality improvements. The due date for proposals is February 4, 2019. For more information, view the Request for Proposals for eligibility criteria; visit the HWC Grant Program website; and register for the informational webinar session on Wednesday, October 24, at 2:00 pm (eastern).