Flow Control/Monitoring, Stormwater Treatment, Dewatering and Pretreatment

Flow Control/Monitoring, Stormwater Treatment, Dewatering and Pretreatment
Filter fabric and liner trap sediment

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Technology captures non-revenue water

Problem
Providence (R.I.) Water, the largest utility in the state, was losing 11 percent, or 2.57 billion gallons of water, in its distribution system, amounting to an annualized net cost of $954,315.

Solution
The utility bought leak detection equipment from Itron.

Result
Since June 2012, the utility has repaired 49 leaks, recovering more than 27 million gallons annually. The equipment enabled the utility to notify customers of side leaks and enhance user engagement to mitigate the effects of droughts and heavy demand. 866/374-8766; www.itron.com.

Filter fabric and liner trap sediment

Problem
The stormwater management program in Brookfield, Conn., required engineers to trap sediment that could flow into collection chambers at the Riverview apartment complex.

Solution
CULTEC representatives recommended wrapping filter fabric around the first row of chambers to capture the first flush, and placing a polyethylene liner beneath the chambers to prevent suspended solids from intruding into the stone beds.

Result
Engineers installed a sump pit beneath the first chamber to capture silts and fines. A jet pushed water toward the catch basin and sump for cleaning. 800/428-5832; www.cultec.com.



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