Major housing developer, Borehole de-commision, Royston, Hertfordshire
A national housing developer took note of Irrigation and Water through its succesfull advertising and approached us with a problem that needed solving. They had aquired land to build upon but needed to decommission an old redundant agricultural borehole before works could commence. Our solution to this involed back filling the borehole with 60 tons of un-contaminated pea gravel in a controlled manor to prevent any bridging inside the bore to within four meters from the top. A further two meters of bentonite grout was poured in on top of the gravel, the bentonite was then rehydrated to create a seal and prevent any bridging. Then finally the top two meters of the borehole was exgavated to allow for a reinforced 300mm thick concrete capping, to ensure a safe footing for roadways and traffic. Finally the environmental agency was informed of the works, materials and procedures, and the decommissioning of the borehole was passed successfully.
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From initial contact through to completion of installation of a 100ft borehole for garden and domestic use, couldn't fault the service from Ashley, Derek and Andy the engineer. Now got an excellent scheme for our 1 acre garden and also serves hot and grey water in the house. The first pump was too beefy at 20 gallons/min so down-rated to 8 gallons/min and added a UV clarifier to the buffer tank. A very neat installation. Roll on the hot weather next year!!Private Client - Woodton, Norfolk