Located in Southern California, this water utility uses wells to store water. These same wells are also used for fire protection. which is especially critical during the summer months. The supply covers about 10,000 customer connections with chloraminated water for residual disinfection, with chlorine and ammonia boosting in various locations.

Whilst residual chlorination is relied upon to provide protection of drinking water in distribution systems, it is increasingly being supplemented by ultraviolet (UV) irradiation as a primary disinfectant for drinking water treatment. As a chemical-free process it avoids many of the issues associated with hazardous oxidising disinfectants and does not generate disinfection by-products. It is also effective against microbiological pollutants such as protozoa, that are resistant to chlorine.

The consulting engineer for a municipal water utility contacted Carbonair to solve a problem that their client was having with several of its drinking water production wells. Low levels of Vinyl Chloride (VC) were detected in several of its drinking water wells. They needed to treat this water on a temporary basis until they could either construct new wells or build a larger permanent treatment plant to handle the problem.

A UK water supply company serves a population of approximately 675,000 consisting of homes and businesses in Surrey, Sussex and Kent and is a key part of London’s drinking water network. The largest works in Kent, which takes raw water from a reservoir that is recharged in winter by abstraction from the River Eden. The original works capacity was 35Ml/d and it is currently undergoing a phased uprate.

The Weaverville Community Services District (CSD) is a publicly owned municipal water agency located in Weaverville, California. The facility needed to retrofit an existing building and switch from a gas feed system to an onsite hypochlorite system. The conversion from gas to hypochlorite is a trend being seen in many Northern California districts as regulations on chlorine gas increase.

Irish Water was created by the Irish Government in 2013 and supplies drinking water to the whole of the Republic of Ireland. The company is investing over €65 million as part of their National Disinfection Programme involving the upgrade and standardisation of disinfection systems currently installed in over 800 sites including water treatment plants, pumping stations and reservoirs.

The source of the contaminated water was located approximately 250 meters away from the municipal well, at a former industrial site. Upon learning of the elevated test results, the state issued a “do not drink” order to the 450 residents served by the municipal water supply until the water source could pass quality testing again.

A public water agency in California contacted Evoqua to treat remove arsenic from a groundwater supply. They needed to achieve a 1 ppb effluent level from the treatment system, 90% lower than the current drinking water standard in California. In addition they needed to have the treatment operating within weeks.

This 10 million gallons per day drinking water plant gets its raw water source from a 151,000 acre-feet reservoir situated at an elevation of 5430 ft.  The water intake is through a tunnel at a depth of 200 feet.  The intake does not have provisions for the withdrawal of water from multiple levels in the reservoir. 

Wassergewinnung Essen (WGE) was founded in 2002 as a co-operative group between Essen Public Services and GELSENWASSER. At the Ruhr in Essen, the company is focused on procurement, extraction, treatment and supply of drinking water and then delivering to its partners.

The German Echthausen Water Works is one of eight water works of Wasserwerke Westfalen GmbH, located in Dortmund, Germany. It was built in 1942. Wasserwerke Westfalen is a subsidiary company of both Dortmunder Energie- und Wasserversorgung GmbH and Gelsenwasser AG, and is the largest producer of drinking water in the German state of North Rhine-Westphalia.

Xylem supplied additional filters, UV sterilizers, pumps, and refurbishment of the existing equipment that was necessary to meet water quality requirement for this building, as well as provide a guaranteed system. The complete system includes pretreatment, reverse osmosis, service deionization, UVs and polishing filters.

Silanna Semiconductor is an Australian company specialised in the design and manufacture of advanced semiconductors. It has established itself as a market leader, providing power control and UVC LED semiconductors to the communications, space, defence, medical, and consumer markets. With dedicated offices in North America, Europe, Asia, and Australia, the company maintains a global presence and ready access to a range of markets and industries.

At a Midwest printed circuits manufacturer, achieving optimal water treatment efficiency became a critical concern. The 80,000 square foot facility faced the constant challenge of promptly detecting disruptions in their treatment processes, while also striving to streamline operations, reduce costs, and maintain high product quality.

A Minnesota mine reduced copper and cobalt in its discharge using wastewater ion exchange, achieving compliance without chemicals and adapting to seasonal flow increases.

In order to expand operations and maintain a water balance in South Carolina’s wet climate, Nevada Goldfields’ Barite Hills gold mining operation required a treatment plant to handle its wastewater. At this mining site, the company extracts gold from soil using a high pH cyanide leaching solution. The process generated large volumes of cyanide and metal laden wastewater, which they had been storing on-site.

Soil and groundwater remediation projects often call for treatment of groundwater, soil vapor extraction condensate, soil vapor and other liquid and vapor streams for removal of volatile and semi volatile organic compounds. Xylem's Carbonair has provided thousands of STAT Low Profile Air Strippers, liquid phase and vapor phase carbon vessels for remediation systems over our 30 plus years in business.

A medical center in Georgia needed filtration for its three 400 ton cooling towers due to fouling/corrosion issues, silt and organic accumulation in the basins resulting in Legionella habitat buildup, and replacement of cooling tower fill due to plugged fill channels from unfiltered cooling water.

A leading Florida medical center features a state-of-the-art clinical diagnostics laboratory with a complete range of blood analysis services. The water requirements for new clinical analyzers installed in the lab was less than 10 mg/L total organic carbon (TOC) and conductivity less than 0.1 cm at 25 c. In order to meet these requirements, the medical center needed to update their water purification system.

A large healthcare products manufacturer in the United States needed to improve its environmental impact while substantially reducing excessive costs associated with municipal discharge and the operation of cooling towers.

A major medical center in Oklahoma was undergoing a very large instrumentation implementation for chemistry and hematology equipment with a strict timeline. The medical center brought in the regional Director of Outreach Laboratories to assist in the implementation in order to ensure a successful outcome.

In February 2020, the California State Water Resources Control Board announced revised drinking water Response Levels for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) in drinking water. The new Response Levels (RLs) were set at 10 parts per trillion (ppt) for PFOA and 40 ppt for PFOS. The previous RL was 70 ppt for a combined total concentration for the two contaminants.

Norfolk Southern has a history of nearly two centuries of service that has linked communities and customers to the marketplace of the world. The railway company operates approximately 20,000 miles of rails and serves every major container port in the eastern United States while providing connections to other rail carriers.

The Commission for the Eradication and Prevention of Screwworm (COPEG), created by a cooperative agreement between the Republic of Panama and the United States of America, safeguards Panama and the rest of the countries in Central and North America from screwworm re-infestation.