DDCS01 F1201 RMA Outfall
Hydro supplied a 6 m diameter Downstream Defender® to Surrey Heath Borough Council. The purpose of the Downstream Defender® was to honour an agreement between Surrey Heath Borough Council and the Royal Military Academy to intercept grits and sands from highway and domestic surface water before passing to a petrol interceptor prior to discharge into a nearby lake... Read more...

DDCS02 G0105 Chemical Analysis
A 4 litre sample of sediment was collected from a Downstream Defender® during an annual inspection and pump out. The sediment sample was divided into two equal parts, one was taken to a soils laboratory to determine the particle size distribution and the second was taken to an environmental laboratory for chemical analysis... Read more...