For our protection, the U.S. Environmental Protection Agency (EPA) has established enforceable guidelines by which municipalities must abide and well owners should abide. These guidelines are known as maximum contaminant levels (MCLs).
Filtration systems remove arsenic from school’s drinking water
A natural gas-fired power plant in Yuba City, Calif., failed to minimize releases of hazardous waste into the environment
The U.S. Environmental Protection Agency (EPA) has fined a natural gas-fired power plant $13,500 for improper management of hazardous waste. According to EPA, the plant, located in Yuba City, Calif., generated arsenic from the treatment of wastewater and failed to minimize releases of hazardous waste to the environment.
The state of Ohio is collecting water samples from homes and public water systems to determine arsenic levels throughout the region
The state of Ohio is determining regions with elevated arsenic levels in groundwater by collecting water samples from homes and public water systems. State health officials are using workshops to educate the public about the dangers of ingesting arsenic and offering tests for arsenic contamination in well water. The U.S. Environmental Protection Agency (EPA) regulates public water systems, but it does not have the authority to regulate private drinking water wells.
NGWA said technologies are available to effectively treat arsenic discovered in private household well water
Technologies are available to effectively treat arsenic discovered in private household well water, the National Ground Water Assn. (NGWA) said recently as the federal and state governments conduct testing in Licking County, Ohio.
“While no one wants to have arsenic in the water, the good news is that water well owners who do can treat their water to safe levels with technology that is readily available,” said NGWA Public Awareness Director Cliff Treyens.
“Arsenic Found in Groundwater.” How many times have you seen that headline? There is no doubt that arsenic has become a common household term, used not only by teenagers studying the periodic table but also by adults who have long forgotten their high school chemistry classes.
In the last 10 years, arsenic has made headlines for various reasons. Most deal with human exposure and its associated risks.
Arsenic is present in natural deposits in the earth. It can enter drinking water supplies from these deposits or from agricultural and industrial activities.
Developing less expensive POE systems for arsenic treatment
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
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.
The U.S. Geological Survey (USGS) released a report in August revealing that 20% of untreated water samples from wells across the U.S. contain concentrations of trace elements exceeding human health benchmarks. Raissa Rocha, editorial intern for Water Quality Products, spoke with Joe Ayotte, USGS hydrologist and lead author of the study, about the report and the occurrence of trace elements in groundwater.
Raissa Rocha: What was the purpose of this study?
In 1986, California voters approved an initiative to address growing concerns about exposure to toxic chemicals. That initiative became the Safe Drinking Water and Toxic Enforcement Act of 1986, better known Proposition (Prop) 65. The act requires the state to publish a list of chemicals known to cause cancer, birth defects or other reproductive harm. This list, which must be updated at least once a year, has grown to include approximately 800 chemicals since it was first published in 1987.
Aiming for Arsenic
Preemptive testing can prevent costly penalties in California