Case Study: Water Well Recovery
Littleton, Massachusetts
The Challenge
The Littleton, Massachusetts, Water Department had conducted numerous redevelopments of their Spectacle Pond # 5 Well over a 15 year period.
At a pumping rate from 650-800gpm, the iron and manganese concentrations rose with increasing use, to the levels of 0.50 and 0.98 mg/l, respectively at the time of this report.
Due to significant increase in the rate of specific capacity reduction, the Department was forced to increase the frequency of well redevelopment.
(This is a generic picture of a fouled well pump and not from this project. It is simply indicative of the type of biofilm build-up that causes well under-performance)
The Solution & Results
The graph shows the results of the last four redevelopment processes.
The use of a blend of Muriatic and Hydroxyacetic acids lost its effectiveness, prompting the Department to seek alternating redevelopment methods.
Results of AquaFreed and Pantonite treatments show equal to slightly better performance with Pantonite, at a reduced cost and impact to the physical infrastructure of the well.
