Case Studies

Removing Radium, Iron & Manganese in Rockford

Located on the banks of the Rock River, 90 miles west of Chicago, Rockford Ill., is home to more than 168,000. Since the 1930s, the company now known as Layne Christensen has been instrumental in developing Rockford's potable water supply, which is drawn from shallow, unconfined and deep sandstone aquifers through 39 active wells.

Reverse Osmosis System Plays Role in Green Initiative

In Wisconsin, a large food processor packages green beans, carrots and potatoes. As part of both a green initiative to improve its processing methods and an energy saving measure, the plant was considering alternatives to the softeners they used to treat boiler makeup water and canning water. The plant’s feedwater is derived from a high-capacity well installed and maintained by Layne Christensen Co. , and Layne was contacted to suggest possible improvements.

Vermont Town Registers Cost Savings with MBR Technology

A small Vermont town is experiencing significant cost savings and improved efficiency after replacing original wastewater treatment membranes with high-performing Layne Poreflon membrane bioreactor (MBR) membranes. First settled nearly 230 years ago and now home to approximately 1,500 residents, the town of Cabot installed an MBR plant in 2001 to eliminate residential septic tank discharges into the headwaters of the Winooski River.

Contaminant Removal Meets Community’s Water Conservation Goals

A small community where civic and business leaders embrace a "paying it forward" ethic, Scott City, Kan., places heavy emphasis on water conservation and protection of its underground water supply.

Located 62 miles from the Colorado border in southwestern Kansas, Scott City was named an All-America City in 2011 by the National Civic League.


Horizontal Collector Wells Provide Additional Water for Acapulco

In the late 1960s, Ranney Western Division, a predecessor to Layne’s Ranney Collector Wells group, went south of the border to install a new type of water collection system for the city of Acapulco located in the Mexican state of Guerrero.

Resolving Iron and Manganese Problems

Most groundwater contains some amount of iron and manganese. These naturally occurring minerals leach from rocks and soils, and in small amounts, they are essential to human health. But excess amounts in drinking water cause aesthetic problems: unwanted haze and color, stains on fixtures and laundry, harmful build-up in pipes and tanks, and an unpleasant taste.

Arizona System Successfully Treats Arsenic

When the U.S. Environmental Protection Agency’s (EPA) new arsenic rule took effect in 2006, a small Arizona water system installed an ion exchange treatment system to bring it into compliance, but it soon learned that its highly complex remedy presented a number of costly pitfalls.

Membrane Contactors Successfully Remove THM, VOC

Hollow-fiber membrane contactors have proven themselves to be an effective technology for removing gases and vapors from liquid streams. The membranes provide accelerated mass transfer rates due to their unique ability to expand the liquid/gas contact interface. Membrane contactors used to degasify liquid streams have been used for decades in industrial applications.

Shovel Ready for Nitrate Reduction

The city of Goodland, Kan., is one of the last stops in the state before entering Colorado. Nitrate levels in the nine city wells were growing over time, and city personnel decided to evaluate technologies available to remove the nitrates. 

The nitrates in the wells varied from 4 to 5 mg/L to more than 13 mg/L, while the maximum contaminant level for nitrates is 10 mg/L.

Selenium Mitigation Achieved in Cooling Water Discharge

By finding a solution deep underground, a Southern California electric utility will be able to address environmental concerns regarding its cooling water discharge.

Part of the century-old Imperial Irrigation District (IID) on the Mexican border, the El Centro Generating Station discharges spent cooling water into the Salton Sea, California’s largest inland body of water, covering some 376 sq miles.

Maintaining Sustainability in Tucson

A sustainable business has no negative impact on the global or local environment, community, society or economy. The business must incorporate the three basic principles of sustainability into each of its business decisions. These principles, in order of importance, are: money, people and the environment. Sahuarita Water Co. LLC (SWC) is a sustainable or “environmentally friendly” business, ensuring that its system operations fully address all current and potential environmental concerns while maintaining a profit and a positive balance sheet.

Looking Good On Paper

A two-month pilot study in the water-intensive pulp and paper industry demonstrated that a mill’s wastewater stream could be turned into an essential resource for increasing its production and reducing costs.

While freshwater is increasingly recognized as a diminishing resource, a critical issue in the papermaking industry is the demand for an uninterrupted supply of freshwater. A mill can consume as much as 15,850 gal for every ton of paper produced.

Maximum Contaminant Removal in Michigan

When U.S. Environmental Protection Agency (EPA) regulations for radium tightened, some cities found themselves above the allowable limits. The levels in Mason, Mich., fluctuated from below to just slightly above the Maximum Contaminant Level. Since radium was an issue that had never been dealt with by Mason officials, they sent out a public inquiry to find the best system for radium removal. Seven teams presented their ideas and bid on the project.

Nitrate Going Green in Oklahoma Town

A thriving farming community in an area where cattle easily outnumber people, the city of Tuttle, Okla., was facing potential fines for nitrogen levels in groundwater that exceeded the maximum contaminant levels (MCL).

From Shortage to Surplus

The residents of Brockton, Mass., can enter this summer without restrictions to water their lawns and gardens. This is a big deal because Brockton is transitioning from watering bans to a water surplus, ending a century-long water shortage. The industrialized and densely populated suburbs in the Boston area continue to grow, which has put a strain on the aquifer that has thus far supplied groundwater for municipal drinking water. To end the shortage once and for all, Brockton has embraced desalination, installing the first large-scale desalination plant in New England.

Membrane Entrained Air Solutions

Many public water supplies have entrained air that causes the water to appear milky or cloudy. Conventionally, stilling basins are used to treat for entrained air and gases by reducing flow velocity while providing detention. This process can require re-pumping. Stilling basins also add significantly to a plant’s footprint and require additional construction.

Sustainable Water System for Arsenic Treatment

A sustainable business is an enterprise that has no negative impact on the global or local environment, community, society or economy. The business must incorporate the three basic principles of sustainability in its business decisions: money, people and the environment.

Filtration for Fracking

The use of large amounts of fresh water for hydraulic fracturing (fracking) is necessary to complete shale gas wells and begin gas production. In fact, millions of gallons of freshwater are required to develop a single successful well.

Waters are combined with “mud” and used as drilling fluids to drill the well. As the drilling proceeds, used drilling fluid is pumped into a reserve pit for storage and disposal. The issue of managing reserve pit fluids is key to shale gas operators for cost reduction and water conservation.

Complicated Contamination

Reverse osmosis system removes chlorides from contaminated groundwater in Kansas

Water Supply Interrupted

Layne Christensen industrial water services help Entrepix avert disaster