Farmoor Reservoir in Oxfordshire has experienced a water level decline of approximately 20 per cent as Thames Water’s hosepipe ban remains in force.
The reservoir, which represents the largest body of water in the county, has seen its levels fall sharply from the seasonal average of 93 per cent to 75 per cent.
Images provided to this publication illustrate the significant change in water volumes at the reservoir situated near Cumnor.
A resident who visited the site on Monday described the conditions, noting that despite clear skies, the reservoir presented an alarming sight.
Extended periods of dry weather have resulted in critically diminished water levels, leaving extensive sections of concrete retaining walls and previously submerged banks exposed to view.
Thames Water confirmed on Wednesday that the temporary hosepipe ban, initially imposed in July, would persist throughout the autumn months.
The utility also reported that reservoir storage in London stood at 59 per cent as of September 16, falling below the typical figure of 78 per cent recorded at this time of year.
Precipitation levels throughout September have substantially lagged behind long-term seasonal norms.
The Thames Valley has received just 35 per cent of its average rainfall, while London has recorded 41 per cent of typical levels for the period.
Soil moisture content remains below average across the catchment area, and river flow rates continue to register below expected levels.
Groundwater reserves are depressed throughout the region and are particularly depleted in the Thames Valley, factors that ensure the hosepipe ban will remain active.