Water Quality in Majority of U.S. Well Networks Remains Unchanged Over Decades

Source: 
USGS
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USGS analysis examined concentrations of chloride, dissolved solids and nitrate in groundwater

There was no change in concentrations of chloride, dissolved solids or nitrate in groundwater for more than 50% of well networks sampled in a new analysis by the U.S. Geological Survey (USGS) that compared samples from 1988 to 2000 to samples from 2001 to 2010. For those networks that did have a change, seven times more networks saw increases as opposed to decreases.   

Publication Date: 
May 4, 2012
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Water Quality in Majority of U.S. Well Networks Remains Unchanged Over Decades

Phigenics Challenges Accuracy of Conventional Legionella Testing Protocol

Source: 
PR Newswire
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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.

Publication Date: 
May 1, 2012

Test Package

The Complete RO Screen was developed with input from membrane manufacturers and treatment professionals. This package tests for most factors that can reduce the life of an RO membrane. Due to the nature of RO produced water, the testing was designed to provide lower detection levels. This test package is also beneficial for other applications that require pure water. New and improved compact packaging will reduce shipping costs.

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Achieving Accuracy

There are many portable handheld devices that measure dissolved solids, but not all instruments are equal. Beyond the product specifications, how can you tell which instrument to choose? Even when you choose the best instrument, how can you get accurate repeatable readings? This article addresses design and use issues that affect the accuracy of conductivity, resistivity and total dissolved solids (TDS) measurements so that you choose the right instrument for your application and use it correctly.

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Design features and calibration tips for accurate dissolved solids measurements

About The Author: 

Heather Petrig Rekalske is technical writer for Myron L Co. Rekalske can be reached at 760.438.2021 x1223 or by e-mail at hrekalske@myronl.com.

Publication Date: 
June 1, 2010
Activation Date: 
June 1, 2010
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Electrochemical Sensor Manufacturing Facility Receives ISO Certification

Source: 
Sensorex
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NSF Intl. certified Sensorex’s product line design and production facility

Sensorex’s analytical product line’s design and production facility, featuring advanced cellular manufacturing equipment and practices, has been approved and certified by NSF Intl. to the 9001:2008 standard.

Publication Date: 
April 12, 2012

PH & Temperature Pen

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Spotlight Name Archive: 
General
Legacy ID: 
61581
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March 2012

The Ultrapen PT2 pH & temperature pen features a proprietary sensor design and 1-,2- and 3-point calibration. With two pH measurement modes to choose from, it has an accuracy of ±0.01 pH with automatic temperature compensation and readout. The Ultrapen is waterproof and features durable, fully encapsulated electronics powered by a 1 N-type battery.

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Test Strips

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New Product Showcase
Legacy ID: 
61587
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March 2012

AquaChek Spa is a six-in-one test strip developed specifically for hot tubs. The 15-second, dip-and-read strip includes tests for six parameters: total chlorine, total bromine, free chlorine, total alkalinity, pH and total hardness. To use, dip the test strip into the spa or hot tub, compare using the color chart and adjust chemical levels as needed.

Test Strips

Spotlight Name Archive: 
New Product Showcase
Legacy ID: 
61507
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February 2012

The AquaChek Copper 3-in-1 test strip is designed for mineral purification systems that are used as an alternative for sanitizing pools and hot tubs. The test strip allows for easier monitoring and controlling of copper levels in pool and spa water. It also measures pH and total alkalinity, helping to prevent scaling and corrosion caused by unbalanced pH levels.

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Testing the Waters

Last summer’s wave of tropical storms left the East Coast scrambling to ensure drinking water quality. Water Quality Products editorial intern Raissa Rocha spoke with Marc Hamel of testing equipment manufacturer Horizon Technology Inc. to discuss the impact weather events may have on water quality.

Raissa Rocha: What is your experience with companies and laboratories concerning water samples that need to be taken after a weather event occurs?

About The Author: 

Marc Hamel is director of marketing and international sales for Horizon Technology Inc. Hamel can be reached at mhamel@horizontechinc.com or 603.893.3663. Raissa Rocha is editorial intern for Water Quality Products. Rocha can be reached at rrocha@sgcmail.com or 847.954.7915.

Publication Date: 
January 27, 2012
Activation Date: 
January 27, 2012
Issue Reference: 
Legacy
Legacy ID: 
23206

Test Kits

Company Reference: 
Spotlight Name Archive: 
Products
Legacy ID: 
61335
Spotlight Header Archive: 
December 2011

Industrial Test Systems Inc. manufactures inorganic Arsenic Quick test kits that provide accurate results at affordable prices. The ETV-verified, patented kits require no technical training and are recognized as premium inorganic arsenic field test kits. The kits report results in as few as 14 minutes and detect amounts as low as 0.3 ppb.