WaterBriefs: EPA recommends Hach LDO method for wastewater compliance monitoring (2024)

In other news below:
-- Severn Trent Services provides arsenic removal media for El Paso
-- Black & Veatch commences second consultancy project in Liuzhou
-- Pennichuck, New Hampshire PUC reach proposed temporary rate settlement
-- Aqua America wastewater subsidiary keeps growing with new acquisition
-- Dow announces plant closures to strengthen competitive position
-- Rain Bird summit draws water conservation, environmental experts
-- Evan Koslow to enter Activated Carbon Hall of Fame at IACC-18
-- Orange County water pipeline project reaches second major milestone
-- Lakewood Instruments has new website
-- Strategic Diagnostics launches Microtox technology website
-- NanO2Tech kills microbes without chlorine
-- Group environmental report for 2006 published
-- Aquacell Water's arsenic removal system selected by Tucson water company

EPA recommends Hach LDO Method 10360 for compliance monitoring -- LOVELAND, CO, Sept. 1, 2006 -- In a letter dated July 26, the U.S. Environmental Protection Agency's Engineering and Analytical Support Branch recommended Hach LDO Method 10360 (Luminescence Dissolved Oxygen) for the measurement of DO and the determination of biochemical oxygen demand (BOD) in wastewater, under the National Pollution Discharge Elimination System Program (NPDES). The Hach LDO method is a revolutionary breakthrough in the measurement of dissolved oxygen...

Severn Trent Services provides arsenic removal media for El Paso -- FORT WASHINGTON, PA, Sept. 1, 2006 -- Bayoxide® E33 arsenic removal media from Severn Trent Services has been selected for use by the city of El Paso, Texas, at three water treatment facilities that serve the city's population. The facilities -- the Cielo Vista, the Eastwood and the Northeast -- comprise 31 separate wells and have a combined capacity of 50 million gallons of treated water per day. Total arsenic levels in these and other surrounding wells had been as high as 30 parts per billion (ppb). The new treatment systems have enabled the city to reduce arsenic levels below the EPA arsenic standard for drinking water of 10 ppb...

Black & Veatch commences second consultancy project in Liuzhou -- SHANGHAI, China, Sept. 1, 2006 -- Black & Veatch announced today that its water business has commenced working on Package A of the World Bank-funded Liuzhou Environment Management Project. The assignment will focus on strengthening the institutional, financial and operational management of the Liuzhou Municipal Wastewater Treatment Company (LMWTC), an autonomous company that was established less than two years ago to provide urban wastewater collection and treatment services. Earlier this year Black & Veatch started working on Package B of the Liuzhou Environment Management Project, providing advice on design review and construction management of wastewater facilities, and developing project management capacity...

Pure Cycle finalizes Arkansas River water acquisition -- THORNTON, CO, Sept. 1, 2006 -- Pure Cycle Corp. has acquired about 60,000 acre-feet of Arkansas River water from High Plains A&M LLC on Aug. 31, which consummates the planned transaction the company announced on May 10, 2006. The Company acquired these senior water rights through the purchase of over 21,600 shares of the Fort Lyon Canal along with over 17,500 acres of land in southeastern Colorado...

Pennichuck, New Hampshire PUC reach proposed temporary rate settlement -- MERRIMACK, NH, Sept. 1, 2006 -- Pennichuck Corp. today announced that its subsidiary Pennichuck Water Works Inc. has reached a settlement with the staff of the New Hampshire Public Utilities Commission regarding Pennichuck Water's request for temporary rate relief. The terms of the settlement, which will not become effective unless approved by the New Hampshire PUC, provide for an annualized increase in Pennichuck Water's revenues of about $2.4 million, or 14.41%. The New Hampshire Office of Consumer Advocate and Anheuser-Busch, Inc., Pennichuck Water's largest commercial/industrial customer, joined in the settlement. The settlement calls for the temporary rate increase to be effective for service provided on or after July 18...

Aqua America wastewater subsidiary keeps growing with new acquisition -- BRYN MAWR, PA, Sept. 1, 2006 -- Aqua America Inc. announced today that its non-regulated subsidiary, Aqua Wastewater Management Inc., has acquired the assets of Foster Septic Services of Kennett Square, PA, further expanding the company's wastewater services and septage hauling business in southeastern Pennsylvania. The transaction -- valued at about $1 million -- is expected to be immediately accretive to earnings. Foster Septic Services provides about 5,000 residential and commercial customers with septage and commercial wastewater hauling services. The acquired company's capabilities also include septic tank system design and installation, inspection, certification and repair services, which represent new lines of business for Aqua...

Dow announces plant closures to strengthen competitive position -- MIDLAND, MI, Aug. 31, 2006 -- In its ongoing drive to improve the competitiveness of its global operations, The Dow Chemical Company (NYSE: DOW) announced today that it will shut down a number of assets around the world.
As a consequence of these shutdowns, and other optimization activities, the Company expects to incur a charge in the range of $550 million to $650 million, which includes costs such as severance and asset write-downs. This charge will be reflected in Dow's third quarter of 2006 results. The company expects that these actions, when fully implemented, will reduce structural costs by about $160 million a year...

Water conservation, environmental experts provide insight into global water crisis, outdoor water conservation at Rain Bird's Third Intelligent Use of Water Summit -- Leading industry forum convenes at the University of Arizona in Tucson and addresses global conservation initiatives and strategies for the desert and beyond -- TUCSON, AZ, Aug. 31, 2006 -- Leading environmental and water conservation experts convened today in Tucson, Arizona, to examine conservation initiatives and strategies relating to landscape irrigation at the third Intelligent Use of Water Summit, hosted by Rain Bird Corporation, the leading manufacturer and provider of irrigation products and services. Held this morning at the University of Arizona's main campus in Tucson, the six-member symposium focused on the relationship between water conservation and landscape water use, water conservation policies and legislation, and potential programs and initiatives to bring greater awareness to the need for water conservation. In addition to calling for civic and business leaders to collaborate on the development and implementation of water conservation policies, the panel stressed the importance of assigning a value to water...
Also see: "Rain Bird's Third Intelligent Use of Water Summit to examine global conservation initiatives and strategies for the desert and beyond"

Evan Koslow to enter Activated Carbon Hall of Fame at IACC-18 -- PITTSBURGH, Aug. 31, 2006 -- Dr. Evan Koslow of KX Industries has accepted the Activated Carbon Hall of Fame award to be presented at the 18th International Activacted Carbon Conference in Pittsburgh, which is coordinated by Professional Analytical and Consulting Services (PACS). Dr. Koslow will present a plenary lecture at the 18th International Activated Carbon Conference & Courses program on October 20, 2006. A luncheon is in honor of prior and new Activated Carbon Hall of Fame awardees. Dr. Koslow's lecture is titled "Adsorption Intensification within Immobilized Activated Carbon Structures: Economic Consequences." PACS is now accepting Hall of Fame nomination letters for 2007 International Activated Carbon Conference & Courses in Sydney, Australia July 5-6, 2007, and Pittsburgh, Pennsylvania Oct. 18-19, 2007...

S. Calif. water pipeline project reaches second major milestone -- FOUNTAIN VALLEY, CA, Aug. 30, 2006 -- Orange County Water District (OCWD) completed the second of three segments of a 13-mile pipeline that will connect a new state-of-the-art water purification facility in Fountain Valley to an existing percolation pond in Anaheim. The pipeline is part of the Groundwater Replenishment (GWR) System, an innovative water purification project designed to provide a new supplemental source of high-quality water for up to 20% of north and central Orange County residents. The GWR System, a joint project of the Orange County Water District (OCWD) and Orange County Sanitation District (OCSD), takes highly treated sewer water currently released into the ocean and purifies it using the same technologies that purify baby food, fruit juices, medicines and bottled water. The new water will be used to expand the already existing seawater intrusion barrier along the coast and to augment groundwater supplies...
Also see: "Groundwater Replenishment System barrier facility completed: Orange County project completed under budget"

Lakewood Instruments has new website -- MILWAUKEE, WI, Aug. 30, 2006 -- Lakewood Instruments is pleased to announce its new website to the cooling tower, boiler, process, and waste water industries. Lakewood Instruments is a manufacturer and assembler of reliable water treatment controllers. The website will display photos and descriptions of their three main product lines to include M2000 series LonWorks, M1500 series, and M100 series. Also available for viewing and downloading are manuals, cut sheets, and specification sheets. One of the many highlights of the website is the on-line order form. This option reflects Lakewood's focus on listening and responding to customers' needs. Please visit www.lakewoodinstruments.com...

Strategic Diagnostics launches Microtox technology website -- NEWARK DE, August 30, 2006 -- Strategic Diagnostics Inc. today announced the launch of a web site (www.sdimicrotox.com) dedicated to its Microtox® and Deltatox® bioassay technology. The Microtox technology is sensitive to thousands of toxins and chemical contaminants, and has been used to characterize more than 2,700 chemical toxins. This technology is the only technology of its kind designated as an anti-terrorism technology and given Safety Act Certification by the U.S. Department of Homeland Security. The site provides product descriptions and technical data, as well as flowcharts, product profiles, and case study downloads, including Department of Homeland Security vulnerability assessment information and frequently asked questions. Also incorporated into the site is information about purchasing, financing and leasing options and Urban Areas Security Initiative (UASI) grants...
Also see: "SDI's RapidChek SELECT Salmonella product approved by AOAC"

NanO2Tech kills microbes without chlorine -- MONTREAL, Canada, Aug. 30, 2006 -- NanO2Tech, a Canadian company is launching the ACTIV 3000 electroperoxidation water purification systems. ACTIV 3000 systems were conceived mainly for private and public pools as well as for drinking water applications. The patented Electroperoxidation technology, co-developed with ETE and CNRS in France, disinfects automatically water without using chlorine-based chemicals. It is the only process that destroys micro-organisms such as bacteria, virus and parasites by applying electric current while oxidizing the water at the same time. The advantage of electricity is the instant destruction of bacteria's membranes. The electrolysis also generates natural oxidizers, a mixture of peroxide and hydroxyl ions that have a disinfecting effect lasting 30 days, thus protecting the water against post-treatment contamination. Oxidizing the water with the ACTIV 3000 kills all bacteria without generating trihalomethanes (THM) and chloramines found after conventional
chlorine-based treatment. Chloramines have been known to affect the respiratory system of swimmers and THM compounds are potentially carcinogenic...

Group environmental report for 2006 published -- BERLIN, Germany, Aug. 30, 2006 -- Schering has been successfully upholding its commitment to safety, health care and environmental protection. This, together with its social commitment, is documented in the company's current Group Environmental Report, published every two years. For example, emissions at the company's pharmaceutical production sites were further decreased thanks to the use of the latest technology and the replacement of older equipment. The implementation of a modernized central wastewater treatment plant at Schering's largest production site in Bergkamen led to a considerable reduction in the amount of wastewater. In addition, energy saving measures were implemented at many sites as well as individual photovoltaic projects to lower the amount of CO2 emissions. It was also possible to reduce the number of occupational accidents throughout the Group...

Aquacell Water's arsenic removal system selected by Tucson water company -- Aquacell to provide arsenic removal system using Dow's ADSORBSIA media -- RANCHO CUCAMONGA, CA, August 30, 2006 -- Aquacell Water has been selected to provide its arsenic removal system to the Rancho Del Conejo Community Water Co-Op in Tucson, AZ, the company announced Aug. 21. Aquacell received notification from the water company that they have selected Aquacell's arsenic removal system, which utilizes ADSORBSIA™ GTO™ titanium-based arsenic removal media from The Dow Chemical Company. Aquacell designs its arsenic removal systems to allow providers of drinking water to come into compliance with new federal EPA regulations that lower the maximum level of arsenic in drinking water from 50 parts-per-billion to 10 parts-per-billion...

***

For previous "WaterBriefs" reports, click here.

###

WaterBriefs: EPA recommends Hach LDO method for wastewater compliance monitoring (2024)

FAQs

Is Hach approved by the EPA? ›

The EPA has reviewed Hach methods and accepted them for use in compliance monitoring. These methods are defined by EPA as Acceptable versions of previously approved methods. These methods are generally not published in the Federal Register or in the Code of Federal Regulations.

How does an LDO probe work? ›

Blue light from an LED is transmitted to the sensor surface. The blue light excites the luminescent material. As the luminescent material relaxes it emits red light. The time from when the blue light was sent and the red light is emitted is measured.

How to calibrate a Hach do probe? ›

  1. Rinse the probe with deionized water. Dry the probe with a lint-free cloth. ...
  2. Add a small amount of water (approximately 1 cm) to the bottom of narrow- neck bottle, such as a BOD bottle. Insert a stopper and shake the bottle vigorously for several minutes. ...
  3. Push Calibrate. Push Read. ...
  4. HACH COMPANY. WORLD HEADQUARTERS.

What is EPA compliant? ›

EPA Compliance is a federally-issued authorization for facilities whose activities may yield environmental impact as determined by regulations set by the EPA for the agricultural, automotive, construction, electric utilities, oil and gas, and transportation industries.

Who bought out hach? ›

In 1999, Hach became a wholly owned subsidiary of Danaher Corporation, which includes over 30 companies working in the process/environmental controls industries.

How accurate is the LDO? ›

Performance LDOs have the ability to maintain DC accuracy of 1% or better across a variety of conditions. These LDOs also feature the excellent transient response necessary to subdue ringing associated with quick load changes.

What is the test method of LDO? ›

One test method is to apply an input voltage that is some number of millivolts below the nominal output voltage and then load the LDO with the test current. For example, 3.2 V is applied to a 3.3-V LDO and then the output voltage is measured.

How does an LDO work? ›

A low dropout regulator (LDO) consists of a voltage reference, an error amplifier, a feedback voltage divider, and a series pass element, usually a bipolar or CMOS transistor (see Figure 1). Output current is controlled by the PMOS transistor, which in turn is controlled by the error amplifier.

What temperature should probe calibration be? ›

CHECKING YOUR PROBE

A simple way to check a digital probe is to put it in iced water and boiling water: • The readings in iced water should be between -1°C and 1°C. The readings in boiling water should be between 99°C and 101°C.

Do probe calibrations slope? ›

After one or two calibration points, the meter will display a slope (%). The slope should be within the range 50 - 200%. If the slope is less than 50% or more than 200%, replace the DO tip.

How do you test a probe calibration? ›

Calibrate your probe using ice and boiling water. When tested in boiling water the probe temperature must reach between 99℃ & 101℃ and when in ice it must reach between -1℃ and 1℃. If the probe does not reach these requirements it must be re-calibrated or replaced - report these findings to your manager.

Does the EPA approve all pesticides? ›

Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) - Requires all pesticides sold or distributed in the United States (including imported pesticides) to be registered by EPA. Registration is based on evaluation of scientific data and assessment of risks and benefits of a product's use.

What agencies are under the umbrella of the EPA? ›

The Air Resources Board (ARB), State Water Resources Control Board (SWRCB), Regional Water Quality Control Boards (RWQCBs), California Department of Resources Recycling and Recovery (CalRecycle), Department of Toxic Substances Control (DTSC), Office of Environmental Health Hazard Assessment (OEHHA) and Department of ...

What contaminants are regulated by the EPA? ›

Microbial contaminants, lead, nitrates and nitrites, arsenic, disinfection byproducts, pesticides, and solvents are among the contaminants for which EPA has set health-based standards.

Who are Hach water competitors? ›

Hach's competitors
  • Hach.
  • Kinetico Advanced Water Systems.
  • Aquasource Solutions.
  • Veolia Water Technologies & Solutions.
  • Xylem.

Top Articles
Latest Posts
Article information

Author: Allyn Kozey

Last Updated:

Views: 6234

Rating: 4.2 / 5 (63 voted)

Reviews: 94% of readers found this page helpful

Author information

Name: Allyn Kozey

Birthday: 1993-12-21

Address: Suite 454 40343 Larson Union, Port Melia, TX 16164

Phone: +2456904400762

Job: Investor Administrator

Hobby: Sketching, Puzzles, Pet, Mountaineering, Skydiving, Dowsing, Sports

Introduction: My name is Allyn Kozey, I am a outstanding, colorful, adventurous, encouraging, zealous, tender, helpful person who loves writing and wants to share my knowledge and understanding with you.