Ty Mawr Reservoir

Ty Mawr Reservoir
Cronfa Ty Mawr (Welsh)
Overlooking the reservoir
Ty Mawr Reservoir Location in Wrexham County Borough
Location	Wrexham, Wales
Coordinates	53°01′27″N 3°04′54″W / 53.02420044°N 3.08161472°W / 53.02420044; -3.08161472
Type	Artificial pumped-storage inland raw water reservoir[1]
Primary inflows	Esclusham Mountain, Eglwyseg Mountain and Cae Llwyd Reservoir
River sources	Pentre-bychan Brook catchment
Catchment area	19 hectares (0.19 km2)
Surface area	8.6 hectares (86,000 m2)
Average depth	10 metres (33 ft) (mean)
Water volume	593,000 m3 (130,000,000 imp gal)
Salinity	moderate alkalinity
Shore length1	1.102 kilometres (0.685 mi)
Surface elevation	245 metres (804 ft)
Settlements	Wrexham, Rhosllanerchrugog, Chirk
References	[2][3]
1 Shore length is not a well-defined measure.

Ty Mawr is a reservoir located between Llwyneinion and the Ruabon Moors in Wrexham County Borough, Wales. It is next to Cae Llwyd Reservoir.

The reservoir opened in 1908, and is operated today by Hafren Dyfrdwy on behalf of Severn Trent. It is 8.6 hectares (21 acres) in area, of moderate alkalinity, humic and a shallow reservoir of a mean depth of 10 metres (33 ft). It is part of a system of several small reservoirs including the Cae Llwyd Reservoir and Pen-y-Cae Reservoirs. The water of the lake is sourced from the drainage basin of the Pentre-bychan Brook and the Cae Llwyd Reservoir located at a higher elevation to the west of the reservoir. The catchment area of the lake is 19 hectares (47 acres).^[4] It holds the greatest continuous embankment length (600 metres (2,000 ft)) of any of the reservoirs operated by Severn Trent, and the embankment is made of a clay core. It can hold a capacity of 593,000 m³ (130 million imperial gallons).^[5]

The reservoir supplies Wrexham, Chester and surrounding areas, with it notably popular as a venue for anglers.^[6]

• List of lakes of Wales