well water testing Articles
-
Multiparametric comparison of chromogenic-based culture methods used to assess the microbiological quality of drinking water and the mFC method combined with a molecular confirmation procedure
MI agar and Colilert®, as well as mFC agar combined with an Escherichia coli-specific molecular assay (mFC + E. coli rtPCR), were compared in terms of their sensitivity, ease of use, time to result and affordability. The three methods yielded a positive E. coli signal for 11.5, 10.8, and 11.5% of the 968 well water samples tested, respectively. One hundred and thirty-six ...
-
The Effects That Well Depth and Wellhead Protection Have on Bacterial Contamination of Private Water Wells in the Estes Park Valley, Colorado
Over the past five years, it is estimated that 10% of residential water wells have tested positive for total coliform and 2% for E.coli bacteria in the Estes Park Valley, Colorado. Many of these water wells are shallow or hand-dug in construction. In this study, samplings of 30 private untreated water wells were tested for total coliform bacteria in the Estes Park Valley. Water wells were ...
-
Comparison of four β-glucuronidase and β-galactosidase-based commercial culture methods used to detect
Escherichia coli and total coliforms in waterThe MI agar, Colilert®, Chromocult coliform® agar, and DC with BCIG agar chromogenic culture-based methods used to assess microbiological quality of drinking water were compared in terms of their ubiquity, sensitivity, ease of use, growth of atypical colonies and affordability. For ubiquity, 129 total coliform (representing 76 species) and 19 Escherichia coli strains were tested. ...
-
Influences on the water testing behaviors of private well owners
Many private wells in the United States and Canada already are contaminated, or are at risk of contamination. Regular testing for pathogenic bacteria is one of the most concrete measures well owners can use to determine whether or not their drinking water quality is safe. This study explored the factors and causal relationships that influence well owner water quality testing behavior. In-depth, ...
-
Long Lake Colony Case Study
Long Lake Colony Farm is an 1,800-head swine operation located in Wetonka, South Dakota that uses a 25,000 gallon per day capacity well-water system. Preliminary testing of the system showed elevated bacteria levels in the farm’s water. The water quality also contributed to clogged water lines in the animal drinking system. The bacteria and water line issues resulted in strep problems in ...
-
Acute toxicity of nanosize TiO2 to Daphnia magna under UVA irradiation
The production and use of nanoparticles (NPs), especially those of titanium dioxide (TiO2) have increased steadily within the last decade. Common knowledge of photoactive nanosized TiO2 (nTiO2) effects on freshwater organisms is largely limited to acute toxicity tests without taking into consideration solar ultraviolet‐A (UVA) irradiation. The authors' approach in the present study, based on a ...
-
Flooding Threatens Midwest Water Wells
In the United States, the winter of 2018-19 has been wet. In fact, the National Oceanic and Atmospheric Administration (NOAA) reported it as the wettest winter on record, with .02 inches more total precipitation than even the winter of 1997-98. The West, which has been suffering from extended droughts, was wetter than usual. A higher-than-average snowpack in California should give depleted ...
-
Well Water Treatment Systems
Well Water Treatment Systems | Industrial & Commercial Well water treatment systems are used to purify water and eliminate impurities from all types of well water (dug wells - driven wells - drilled wells). To have the right and the most efficient well water treatment system, you need to correctly analyze the well water chemistry and to have a fundamental understanding of how the well water ...
-
Help protect children from environmental risks
October is Children’s Health Month. To heighten awareness about environmental issues impacting children, EPA is providing parents and caregivers simple tips they can use to help protect children in their homes, schools and communities.“As both EPA Administrator and a mother, I understand the importance of protecting our children from environmental threats,” said EPA Administrator Lisa P. Jackson. ...
-
5 States with high levels of Arsenic in groundwater
Arsenic is a chemical element that enters the environment from mineral deposits, industrial activity, pesticides and the smelting of metals. In high levels, arsenic can cause toxicity, liver and kidney damage, and even cancer. In 2001, the U.S. Environmental Protection Agency (EPA) set a maximum contaminant level of 10 ppb for arsenic in all potable water. Since the standard went into effect ...
-
The Long Island Lie: Emerging Contaminants Tainting Drinking Water and the Company with a Solution
When Grumman partnered with the U.S. Navy to establish a manufacturing, research and testing facility in Bethpage, N.Y. nobody would have anticipated the challenges that would plague the greater Long Island community some eighty-years later. Established on a sprawling 600-acre plot in the late 1930s, the facility aided in providing the United States military with means to defend the freedom of ...
-
Sustainable Solutions for Italian Biochemical Plant - Case Study
PROJECT DETAILS LOCATION Adria, Italy CUSTOMER Mater-Biotech (Novamont Group) SOLUTION Well-Water Potabilization, Wastewater Treatment, Waste-to-Energy TECHNOLOGIES Air Scrubber, Sand Filtration, Double-Stage Nitrification-Denitrification, Membrane Bioreactor, CSTR Anaerobic Digester When Italian biochemical company Mater-Biotech, a subsidiary of Novamont, bought an existing facility and ...
-
Dan Theobald-WaterExpertDan talks Water Conservation Live on WDAF-TV FOX4 KC
Entire Interview: Interviewer: So thank you! Well, with current water restrictions across California, Earth Day is a perfect time to talk about conserving water. This morning, we got WaterExpert, Dan Theobald, here with saving H2O. Dan, Water Man! WaterExpert Dan: Thank you, thank you. Interviewer: It’s good to see you man! WaterExpert Dan: Yes. Interviewer: Thanks for coming up with ...
-
Filtronics Electromedia® Removes Arsenic From 150 ppb to Below 3 ppb
Arizona State Highways 85 and 86 meet in Pima County in southwestern Arizona. The intersection used to form a “Y” and gave birth to a town name. The unusual name comes from a state law that required town names have three letters, so “Y” became Why. What’s not so unusual is that the town of Why, like many Arizona communities, has high levels of arsenic in their well ...
-
Quarry dewatering compliance - Case Study
Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...
-
Quarry Dewatering Compliance - Case Study
Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...
-
What is Hexavalent Chromium?
The dangerous compound made famous by the movie Erin Brockovich can occur naturally or through industrial pollution Hexavalent chromium, a toxic compound sometimes found in water, is a carcinogenic form of the metal chromium in an oxidation state. It’s also known as chromium-6 or Cr (VI). It’s both odorless and tasteless, and it can be found naturally in rocks, soil, and plants. It ...
-
Dam liners FAQs
What Is A Dam Liner? A dam liner is an anti-seepage layer used in a dam, reservoir, or other hydraulic structure, usually between the dam structure and a groundwater source. Its main function is to prevent water from seeping into the soil or rock, thereby reducing the risk of dam leakage and soil erosion. Dam liners are usually made of polyethylene (HDPE) material, which has good flexibility and ...
-
Understanding Sonic drilling
What is sonic drilling? Sonic drilling is a technique that significantly reduces friction on the drill string and drill bit by using energy resonance to affect the soil structure where it contacts the drill string. This combination makes penetrating for a large range of soils much easier. Sonic drilling is most often used when the drilling is difficult and the integrity of the core sample is ...
-
Understanding Sonic drilling
What is sonic drilling? Sonic drilling is a technique that significantly reduces friction on the drill string and drill bit by using energy resonance to affect the soil structure where it contacts the drill string. This combination makes penetrating for a large range of soils much easier. Sonic drilling is most often used when the drilling is difficult and the integrity of the core sample is ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you