Groundwater provides a valuable source of drinking water for millions of people across the U.S. But as new contaminants are discovered and droughts continue to worsen, resulting in depleted aquifers, it is increasingly important to monitor the quantity and quality of available groundwater. The U.S. Geological Survey (USGS) recently updated Water Quality Products on the status of groundwater quality in the U.S.
What is the role of the USGS in surveying and monitoring groundwater quality and availability in the U.S.?
U.S. groundwater faces increasing contamination & overuse
The PT2 pH and temperature pen is designed to be extremely accurate, fast and simple to use in diverse water quality applications. Advanced features include temperature compensation; one-, two- and three-point calibration; choice of continuous and snapshot measurement modes; and waterproof housing. A true one-handed instrument, it is easy to calibrate and use. To take a measurement, simply push a button, then dip in solution.
Water treatment has evolved greatly over the past several years, from simple filters and water softeners to more complex treatment including new and different media, reverse osmosis, ultrafiltration and nanofiltration. A major reason behind this move forward is that more water testing is being done throughout the U.S. by public water systems, in addition to studies by the U.S. Geological Survey that map common contaminants in groundwater and surface waters such as lakes and streams.
Evaluating source water to determine proper treatment
The Watersafe test kit provides a quick, accurate and affordable way to test drinking water quality. These user-friendly kits test for 10 parameters: bacteria, pesticides, lead, nitrates, nitrites, pH, chlorine, iron, copper and hardness. They provide immediate results, and require no power, incubation, sample preparation or special storage.
The Chemitec line of sensors and analyzers tests for parameters including ph/ORP, conductivity, turbidity and suspended solids. It also provides monitoring of peracetic acid and disinfectants such as chlorine, ozone and chlorine dioxide. An electronic storefront has been designed specifically to provide the convenience, ease and rapid delivery of Internet-based transactions.
The Problem Check test package analyzes water for 20 of the most common nuisance contaminants. Developed to uncover aesthetic problems, especially with iron, this test includes total, dissolved and iron bacteria. Additional contaminants tested include manganese, hardness, sulfate, tannins and potassium as well as other contaminants essential to determining treatment options.
The AND1000 fluorimeter is a new technology that uses DNA to detect metals in water in 30 seconds. The handheld device tests drinking water, environmental water and industrial water supplies. It uses an extremely sensitive measurement technique to determine the toxicity levels of heavy metal contamination to low parts-per-billion levels.
The AND1000 fluorimeter and heavy metal sensors enable field testing to be done in less than two minutes, eliminating or significantly reducing the test expenditures, complexity and wait times experienced in traditional heavy metals water testing. It streamlines the water analysis and reporting processes. The product can test drinking water, environmental water and treated wastewater to low parts-per-billion levels within U.S. Environmental Protection Agency and international regulatory limits. Click here for product details.
HQd meters and IntelliCAL probes are customized electrochemistry solutions for water quality testing that take the guesswork out of measurements. They offer lab personnel simple, intuitive operation, with a large, bright backlit meter display that is easy to read. The series offers probes for pH, DO, conductivity and ORP, as well as a line of ISE probes for ammonium, ammonia, chloride, fluoride, nitrate and sodium.
HQd series meters and IntelliCAL probes are specifically designed for the demanding environment of a wastewater treatment plant. Both the rugged IP-67-rated portable meters and the bench top meters deliver accurate measurement of influent, effluent and process streams. They offer plant operators and lab personnel simple, intuitive operation – calibration and measurements can be easily performed right out of the box. The large, bright backlit displays are easy to read at night and during the day.