Newly published research paper demonstrates test inaccuracies due to sample holding time
Water management services company Phigenics LLC recently announced the publication of a research paper that demonstrates up to 33% false-positive test results for Legionella bacteria when following conventional sampling methods.
U.S. EPA published table of human health benchmarks for 350 pesticides
The U.S. Environmental Protection Agency (EPA) has published a table of human health benchmarks for approximately 350 pesticides to enable states, water systems and the public to better determine whether the detection of a pesticide in drinking water or source waters for drinking water may indicate a potential health risk.
Advanced testing methods now allow pesticides to be detected in water at very low levels. These small amounts of pesticides detected in drinking water or source water for drinking water do not necessarily indicate a health risk.
Heptachlor epoxide, trichloroethane, aesthetic chlorine, acrylonitrile, TDS, xylenes, lead, arsenic, hexachlorocyclopentadiene … Certainly, some of the chemicals listed above are recognizable not only to you but also to the average consumer. Some of them are recognizable to you, but the average consumer would stumble through their pronunciation. Should you consider certifying the contaminants listed above?
Deciding which contaminant reduction claims to certify
San Antonio de Los Cobres, a community of 6,000 residents in the Andes Mountains in Argentina, faced a challenging arsenic concentration of up to 290 ppb in its water supply. It needed a solution to reduce the level to below the maximum contaminant level set by the World Health Organization (WHO) of 10 ppb.
Remote Andean town reduces arsenic with new treatment system
GE and SI will collect the contaminated liquid waste and send it off site for disposal
The U.S. Environmental Protection Agency (EPA) announced Wednesday that it has reached an agreement with the General Electric Co. (GE) and SI Group Inc. (formerly Schenectady Chemical) to collect and properly dispose of contaminated groundwater and liquid leaching from the Dewey Loeffel landfill that is threatening several nearby drinking water wells.
The company's Electromedia I and V filtration media are now compliant to NSF/ANSI Standard 61
Filtronics Inc.’s Electromedia I and Electromedia V filtration media now carry certification by NSF Intl. to be compliant to NSF/ANSI Standard 61 for contact with water. The review process included an inspection of Filtronics’ manufacturing facility in Anaheim, Calif., and testing of the media materials to ensure the safe use of these filter media in the treatment of drinking water.
Source water contains arsenic concentrations above recommended WHO levels
AdEdge Water Technologies recently shipped an arsenic treatment system to the Arica – Pago de Gomez Water Treatment Plant in Chile to reduce arsenic levels of 18 ppb in the water source to below the arsenic maximum contaminant level set by the World Health Organization of 10 ppb.
A recent report from the Environmental Working Group revealed the presence of hexavalent chromium in the tap water of 31 of 35 cities. Norman, Okla., had the highest level of all the cities tested. Water Quality Products (WQP) spoke with Dr. Robert Nairn of the University of Oklahoma (OU) to learn more about chromium-6.
Rebecca Wilhelm: What is chromium-6?
University of Michigan to co-sponsor studies focusing on gold mining in Ghana and stomach cancer in Peru
The University of Michigan's Graham Sustainability Institute and the Center for Global Health are co-sponsoring two research projects addressing water quality impacts on public health, one in Ghana and the other in Peru.
Each of the projects, which are called integrated assessments, will receive $350,000 over the next three years.
Catalyst Energy Inc. must pay fines, take corrective actions at well sites
The Pennsylvania Department of Environmental Protection (DEP) today announced it has fined Catalyst Energy Inc. $185,000 for a number of violations at its non-Marcellus oil and gas well operations in Forest, McKean and Warren counties.
In addition to paying a fine and taking corrective actions at its well sites, Catalyst faces restrictions on drilling, hydraulic fracturing and developing new or existing well sites.