Groundwater Drinking Water (Drinking Water) Articles

XIO cloud scada control system simplifies regulatory reporting for small community water system - Case Study

LOCATION Northern California APPLICATION Well Controller System INSTALLATION July 2016 PRODUCT WCS-100 The City of Tehama, like thousands of other small cities and towns, provides drinking water to roughly 400 people through 195 service connections. According to the US EPA, over 65% of the nation’s nearly 60,000 Community Water Systems deliver potable water to 500 people or fewer. In ...

Jan. 7, 2021

By XiO, Inc.

Schoeller diagrams in geo-chemistry

The Schoeller diagram is used to illustrate the relative concentrations of anions and cations. These concentrations are usually expressed in milliequivalents per litre. A Schoeller diagram can be used to compare concentrations from different water sources. An example is whereby samples are obtained from a variety of wells and comparison made on a single Schoeller diagram to explore patterns in ...

Nov. 10, 2020

By Esdat Environmental Data Software

New Zealand Drinking Water Standards

The availability of safe drinking water is an essential requirement for all New Zealanders, irrespective of their status. The NZ Drinking Water Standards, as set by the Ministry of Health, provide requirements for drinking water safety by stipulating; (1) maximum amounts of substances or organisms or contaminants or residues that may be present in drinking-water, (2) criteria for demonstrating ...

Mar. 11, 2020

By Esdat Environmental Data Software

EPA Seeks Information on PFAS for Possible Addition to TRI List of Toxic Chemicals

On December 4, 2019, the U.S. Environmental Protection Agency (EPA) published an advance notice of proposed rulemaking (ANPRM) soliciting information as EPA considers a future rulemaking to add certain per- and polyfluoroalkyl substances (PFAS) to the list of toxic chemicals subject to reporting under Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA) and Section 6607 ...

Dec. 5, 2019

By Bergeson & Campbell, P.C.

Taste and Odour Event Identified by peCOD - Case Study

A drinking water utility in Florida treats groundwater from an extensive wellfield system containing 48 different wells, as well as surface water from a local creek reservoir. Due to the large number of sources, overall influent quality varies greatly. This presents a need to constantly monitor influent water quality, and use feedback loops to optimize treatment and adequately remove the natural ...

Aug. 9, 2019

By MANTECH Inc.

EPA Releases Interpretive Statement on whether CWA NPDES Permit Program Applies to Releases of a Pollutant from a Point Source to Groundwater

On April 23, 2019, the U.S. Environmental Protection Agency (EPA) announced it was making available its Interpretive Statement addressing whether the Clean Water Act’s (CWA) National Pollutant Discharge Elimination System (NPDES) permit program applies to releases of a pollutant from a point source to groundwater (Interpretive Statement) for comment. 84 Fed. Reg. 16810. EPA is issuing the ...

Apr. 26, 2019

By Bergeson & Campbell, P.C.

Westbay System Reduces Construction Costs by 65% - Case study

CHALLENGE OCWD had determined that information on the piezometric level and water quality of each aquifer layer was required to optimize management of the recharge, storage, and recovery of groundwater. SOLUTION A cost analysis indicated that for 10 zones through a depth of 1,500 ft, the Westbay System instrumentation would result in a total cost 55% to 65% lower than that for clustered wells or ...

Apr. 22, 2019

By Westbay Instruments

4 Benefits of Electrocoagulation for Groundwater Treatment

Even though groundwater sources are somewhat safer from pollution and contamination due to their underground location, they are still susceptible. A factory may not be able to discharge wastes directly into a groundwater source like they can a surface water stream or river. However, there are many other ways that waste could potentially contaminate a groundwater source. Because soil is ...

Mar. 26, 2019

By Genesis Water Technologies, Inc.

Managed Aquifer Recharge

As water demand increases, recycled water can be used to maintain groundwater levels In recent years, groundwater stored in key aquifers has become rapidly depleted. This is due not only to demand, but also to technological advances — notably the introduction of the rotary drill in the 1880s and the submersible electric water pump in the 1960s — that have increased exploitation of ...

Mar. 14, 2019

By Fluence Corporation

Artificial lake in Swanscombe, Kent Project - Case Study

A former quarry for cement production is being transformed into a residential area, with 6250 homes, various shops and parks, and an enormous lake. That, in a nutshell, is the megaproject that Trisoplast played a crucial role in 2009. We lined the bottom of the nearly 18-hectares-large lake with Trisoplast to ensure there would be absolutely no risk of groundwater contamination. Exceptional ...

Mar. 11, 2019

By Trisoplast Mineral Liners International Bv

Sensitive Determination of Iron in Drinking Water, Mineral Water, Groundwater, and Spring Water Using Rapid Photometric Tests

originally published in Supelco®'s Analytix Reporter Journal Issue 2 2018 by Merck KGaA, Darmstadt, Germany Visit SigmaAldrich.com/ar-reg The quality of drinking water is regulated by a variety of guidelines, such as the EU Council Directive 98/831,2 and WHO guideline.3 The key principles used to define these limits consider both health hazards and sensory and technical reasons. Iron, for ...

May 14, 2018

By Merck KGaA, Darmstadt, Germany

How NoMonia Works to Treat or Remove Your Ammonia - Case study

Most water utilities should have effective treatment methods for the filtration of arsenic, iron and manganese from drinking water sources. However, as ammonia becomes increasingly concentrated in groundwater throughout the U.S., many utilities around the country are searching for ways to successfully treat the contaminant, while also meeting U.S. Environmental Protection Agency (EPA) standards ...

Mar. 7, 2018

By Adedge Water Technologies, LLC

Technology for treatment of groundwater simultaneously containing iron, manganese, ammonium and organic matter

The groundwater used as drinking water often contains unacceptable amounts of iron and manganese compounds and ammonium ions. These substances are efficiently removed using conventional technologies (aeration and filtration through granular media filters). However, the efficiency is drastically reduced for water containing considerable amounts of organic matter, which usually enters the water ...

Oct. 20, 2017

By IWA Publishing

Manganese oxidation and bacterial diversity on different filter media coatings during the start-up of drinking water biofilters

Manganese removal is a typical concern in drinking water production. Biofiltration may be used when treating groundwater sources but the onset of manganese removal in virgin biofilters can vary considerably. The aim of this study was to investigate the effect of different filter media on manganese oxidation and bacterial diversity in biofilters during the start-up. The onset of manganese ...

Oct. 13, 2017

By IWA Publishing

Wastewater and groundwater

Nearly 25 percent of the population in the United States—in more than 25 million homes—disposes of wastewater through onsite, or unsewered, systems that return treated effluent to the ground. This is an important public health issue because many of those same homes use wells that rely on groundwater for the drinking water supply. With unsewered systems, homeowners are responsible ...

Mar. 23, 2017

By National Ground Water Association (NGWA)

The effect of human activities on the pollution of water in southwest Giza area, Egypt

Southwest Giza area is one of the most complicated regions in Egypt because of the combination of agricultural, industrial and urbanization activities with few studies about water resources contamination with heavy metals. In this study, ten surface water samples and eight groundwater samples were collected and analyzed for pollution with Fe, Mn, As, Cr, Cd, Pb and Cu. The samples were ...

Mar. 20, 2017

By IWA Publishing

Brackish groundwater desalination on the rise

Brackish water is water that is more saline than fresh. It’s not quite as saline as seawater, but it’s still too salty to be used without treatment. Typically, advanced treatment technologies — reverse osmosis and ultrafiltration, as well as other membrane-based technologies — are needed to purify and desalinate brackish groundwater before its use. Brackish groundwater ...

Feb. 23, 2017

By Fluence Corporation

Water Security – A Growing Issue with No Easy Fixes

The issue of water security – access to enough quality water to make it possible to live safely – is a growing concern for many, just ask the communities of Flint and Corpus Christie. The problem is exacerbated when communities and companies come face-to-face over access to water supplies. Wouldn’t the nice idea be to share? That’s met with disagreements as well. If you ...

Feb. 14, 2017

By LuminUltra Technologies Ltd.

Knowledge-based planning of groundwater treatment trains for an efficient drinking water supply system in urban areas

This paper presents knowledge-based planning of the most appropriate treatment schemes for drinking water supply (DWS) systems, jointly applying statistical tools and experimental tests. Milan City was chosen as the case study, its DWS system being composed of more than 20 DWS units, widespread in the urban area. First, multivariate statistical techniques (factor analysis and cluster ...

Jan. 28, 2017

By IWA Publishing

Characterization and comparison of iron oxyhydroxide precipitates from biotic and abiotic groundwater treatments

Removal of iron is an important step in groundwater treatment for drinking water production. It is performed to prevent organoleptic issues and clogging in water supply systems. Iron can be eliminated with a purely physico-chemical (abiotic) method or biotically with the help of iron-oxidizing bacteria (FeOB). Each of the purification methods requires different operating conditions and ...

Jan. 19, 2017

By IWA Publishing

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