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Dardanelle Radial Collector Well at Dusk
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Dardanelle Water Treatment Plant
Dardanelle Water Treatment Plant & Radial Collector Well


  • Designed 3 MGD Lime-Softening WTP

  • Designed Expansion for WTP to 5 MGD

  • Designed 2 MGD Radial Collector Well

The Dardanelle Radial Collector Well won the 2011 American Council of Engineering Companies of Arkansas Engineering Excellence Award in the Water & Wastewater Category and was also honored with the chapter's Grand Conceptor Award. The ACEC/A EEA Award recognizes engineering firms for projects that demonstrate a high degree of achievement, value and ingenuity.

MCE completed designs to expand the Dardanelle Water Treatment Plant capacity from 3 MGD to 5 MDG in 2010. The 3 MGD lime-softening water treatment plant was originally designed by MCE in 2001 and construction was completed in 2003 at cost of approximately $3.45 million. This project also included new water transmission and distribution lines near the site. The expansion to 5 MGD accommodates the addition of a raw water radial collector well, also designed by MCE, situated near the Arkansas River. Treatment processes utilized in the plant include chemical feed, clarification, filtration, disinfection and fluoridation. Construction work for the expansion to 5 MGD was completed in 2011.

The new municipal radial collector well is the first municipal well of its type in Arkansas, though wells of this sort have been in use worldwide for some time. This volume of water will enable the City of Dardanelle  to discontinue the use of conventional water wells. The new well, located 100 feet from to the Arkansas River, is in Veteran’s Park. This location enabled the City to obtain reduced sanitary buffer area requirements as compared to more extensive buffer requirements for river intake from the Arkansas Department of Health. Construction began in October 2009 and was completed in July 2010. Initial indications are that the well’s water quality is superior to that of the Arkansas River based on the influence of local groundwater and filtration and possible biological treatment of the river water within the aquifer sand. The well is expected to produce at least two million gallons per day and construction cost approximately $2 million.


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