The peat bog site is located adjacent to a former Royal Ordnance Factory (ROF) which manufactured millions of munitions during WWII. ROF Risley was also known as Filling Factory No.6. Explosives were received in bulk by rail from different ROFs where they were manufactured. Risley specialised in filling the various casings with explosives and fuses to produce finished munitions.
The factory also had proofing ranges for munitions testing and disposal grounds for the destruction of waste and defective ammunition. It is understood that the burning grounds occupied part of Risley Moss.
During the 1990s, the British army performed UXO surveys across part of Risley Moss County Park. This resulted in the recovery of thousands of items of (mostly expended) UXO.