has three separate water mains: fire fighting, process water and drinking water. A guaranteed supply of about ten million gallons per day was required. Factory 0 Every building on the site was numbered; one part of the number code indicated if the building was assigned to Factory 0, 1, 2 or 3. The non-explosive sectors of the site were housed in Factory 0 (mostly nearest to Bishopton itself). Factory 0 contained most of the supporting services for the site: a permanently staffed fire station with its own fire brigade; clothing department, general stores, laboratories, machine shops, general workshops, laundry, leather workshop, chemical plumber's workshop, carpenter's workshop, and ammunition box stores. It also housed the administration block, a few of the site's many canteens, ambulance station, medical centre, mortuary and the motor transport section. Factories I, II and III Factories I, II and III each had their own coal-fired power stations for producing high-pressure steam for generating electricity using steam-turbine-alternators; with the resulting low pressure steam used for site heating and cordite drying. The three power-stations were also interlinked by high-pressure steam mains. Each factory had three nitroglycerin hills, operating on a batch process, to produce nitroglycerin. Factories I and II (and possibly III) had their own nitration plants for making nitrocellulose. Nitroglycerin and nitrocellulose were then processed to produce cordite. Nearly all the buildings, with the exception of the buildings on the nitroglycerin hills which were light-weight, were steel framed buildings with triple-brick walls and bomb-proof reinforced concrete roofs. Some of the buildings in factory III, which was built last, such as the power station, were clad with corrugated iron to reduce costs. ROF Bishopton had an RDX plant installed at the site during World War II. The plant was declared redundant to requirements and was dismantled in 1950. It was apparently shipped to Australia and re-erected. Included within the site boundary was an armoured fighting vehicle storage compound. This was linked to the REME repair factory at Linwood. Railways The southern end of the site near the River Gryfe was connected to what was then the LMS former Caledonian Railway line. The connection, just north of the former Georgetown railway station, dated back to World War I and the Georgetown Filling Factory. The railway connection was probably severed and the rail tracks lifted when the Inverclyde Line was electrified in the 1960s. Within ROF Bishopton's perimeter fence this line