Case Study: Water Well Recovery
Westford, Massachusetts
The Challenge
April 2016:
8.6 static water level
38.25' pumping level at 42 gpm
1.4 gallons per foot specific capacity - down from 11 gallons per foot.
(This is a generic picture of a fouled well pump and not from this project where the pump was not pulled out and an in-situ process was used. It is simply indicative of the type of biofilm build-up that causes well under-performance)
The Solution & Results
Maher Services employed a combination of enhanced chemical cleaning, using Pantonite PM77 and their Nitro Pulse well rehabilitation process. Nitro Pulse was first employed to loosen encrusted iron and manganese from the screen then 55 gallons of Pantonite PM77 was injected into the screened area with a tremmie pipe.
June 2016:
10.7 static water level
35.5' pumping level at 158 gpm - a 376% increase
6.37 gallons per foot specific capacity - a 455% increase
This unique combination of in Situ enhanced well redevelopment employing Pantonite PM77 and the Nitro Pulse process shows the effectiveness of this treatment technology for the redevelopment of a heavily impacted, gravel packed well where minimum down-time, due to capacity needs, was essential.
