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Remote monitors track river restoration success

May 9, 2013

The Norfolk Rivers Trust has installed a remote river monitoring station that has been tracking water quality and flow before and after river restoration work at an area of ecological importance on the River Nar. Rising in chalk hills to the east of the village of Tittleshall, the river flows south for 2.5 km until it reaches Mileham, then ...

An inflatable plug works better than bypass pumping when closing off a 60-inch penstock

May 6, 2013

When Brian Simon, a project manager at Grace-Titan DVBE (based in Redding, California) first looked at the Potter Valley Bypass job it looked difficult, but straightforward. Grace-Titan was being asked to remove a section of the penstock that supplies Pacific Gas & Electric's (PGE) Potter Valley hydroelectric plant and install a Y-branch. But ...

Petersen Products Company

Wastewater System Consent Decree Program Management case study

Mar. 22, 2013

City and County of Honolulu, HI Honolulu, Hawaii, USA The City and County of Honolulu (CCH) manages over 100 million gallons of wastewater per day through a network of 2,100 miles of pipelines, 70 pumping stations and nine wastewater treatment plants. In 2010, CCH, the US EPA, the state of Hawaii and other non-government organizations entered a ...

HDR, Inc.

Chlorine mystery solved

Mar. 19, 2013

Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but ...

Intellitect Water Ltd

Monitoring Phenol in Water

Mar. 14, 2013

The Situation A plant located in the eastern United States manufactures phenolic resin for applications in plastics molding. This plant uses well water for cooling its reaction process and then discharges the water into a local creek. A leak in the reactor and associated cooling equipment would cause phenol and phenolic compounds to contaminate ...

Monitoring Hydroelectric Dam Sumps

Mar. 14, 2013

TD-4100 Oil in Water Monitors for Hydroelectric Dam Sumps TD-4100 Oil in Water Monitors for Hydroelectric Dam Sumps Hydroelectric Dams produce electric power via the force of the water flowing through the dam. There are numerous sources for oil spillage: The hydroelectric turbines are lubricated by standard lubrication oils; The very large water ...

Turner Designs Hydrocarbon Instruments, Inc.

Analytical Technology Helps Britannia Food Ingredients Ensure Safe Wastewater Disposal

Mar. 5, 2013

Britannia Food Ingredients Ltd. is a speciality fats company for the chocolate, confectionery, biscuit and snack food industries. The company are specialists in providing the demanding fat formulations found within chocolate, ice cream, bakery and snack food products. Located at Goole, East Riding of Yorkshire, England, the business was formed in ...

Monitoring Oil in Cooling Water

Jan. 21, 2013

The Situation A municipal power plant in the southern United States operates more than 10 stationary power plant engines capable of producing 52 megawatts of electric power. The plant is part of a larger statewide power grid system. Within the grid, the municipality brokers the purchase or sale of power hourly, based on the needs of municipality ...

Case study: URS - Identifying remediation locations saved hundreds of thousands

Jan. 16, 2013

One of the biggest threats to public health today is unsafe water. A billion people across the world don’t have access to clean drinking water, in part because many subsurface aquifers have been poisoned. Perhaps the most famous example of this was the Love Canal crisis of 1978. The Niagara Falls neighborhood experienced high rates of ...

Water Quality Monitoring and Testing Using an Environmental Logger

Dec. 21, 2012

Intelligent dataTaker System from CAS DataLoggers Water disruptions typically occur after a large amount of water has rapidly collected in a catchment area. As a result this water is subject to continual monitoring and testing for a variety of chemical and biological agents as well as clarity, rate of movement, and water levels for environmental ...

CAS DATALOGGERS

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