Ion exchange trades calcium and magnesium for sodium (or potassium) on an equivalent basis. The resin does not know or care whether the water started at 5 or 55 grains per gallon. It swaps one equivalent of hardness for one equivalent of sodium each time. The average is about 7.5 milligrams per liter of sodium added for every grain per gallon of hardness removed.
Category: Groundwater
Bacteria in your well water
The ideal condition for drinking water is no bacteria at all because the presence of bacteria of any type means there is a potential pathway(more…)
EPA’s RealWaterTA Initiative
Technical assistance (TA) under RealWaterTA is a targeted, boots-on-the-ground effort to help water systems thrive. The EPA is refocusing on eight core priorities to ensure long-term reliability in providing safe drinking water and treating wastewater effectively.
USDA to Help Build and Improve Water and Wastewater Infrastructure for People in Rural America
WASHINGTON, May 10, 2023 – U.S. Department of Agriculture (USDA) Rural Development Under Secretary Xochitl Torres Small today invited applications for partnerships to ensure rural(more…)
2023 EPA Perchlorate Regulation Update
Perchlorate regulation has been a contentious issue since the first formal EPA decision in 2011. The scientific consensus now is that Perchlorates are of sufficient risk to necessitate being regulated as a Primary Contaminant.
Certain PFAS will be added into the Toxics Release Inventory
EPA released a list of 172 PFAS chemicals that are subject to TRI reporting. Facilities in TRI-covered industry sectors should track and collect data on these PFAS during 2020. All TRI reporting requirements apply to these PFAS (e.g., supplier notification) and TRI reporting exemptions, if applicable, are available for these PFAS