Question: Burragorang or Burragorang Valley is a locality in the Macarthur Region of New South Wales, Australia, in Wollondilly Shire, it is home to Lake Burragorang, which is impounded by Warragamba Dam, a concrete gravity dam, creates Lake Burragorang, the primary reservoir for water supply for which Australian city, New South Wales?

Context paragraphs:
Warragamba Dam: Warragamba Dam, a concrete gravity dam, creates Lake Burragorang, the primary reservoir for water supply for the Australian city of Sydney, New South Wales.

Woronora Dam: The Woronora Dam is a concrete gravity dam with an uncontrolled serpentine spillway across the Woronora River, located south of Greater Metropolitan Sydney, in New South Wales, Australia.  The principal purpose of the dam is for potable water supply for Sydney's southern suburbs and the northern suburbs of the Illawarra region.  The impounded 71790 ML reservoir is also called Woronora Dam and is sometimes incorrectly called Lake Woronora.

Keepit Dam: Keepit Dam is a major gated mass concrete gravity dam with an earth fill abutment and a central gated concrete overflow crest and six radial gate spillways across the Namoi River upstream of its junction with the Peel River in the North West Slopes region of New South Wales, Australia.  The dam's purpose includes flood mitigation, hydro-power, irrigation, water supply and conservation.  The impounded reservoir is called Lake Keepit.

Tinaroo Dam: The Tinaroo Dam, officially the Tinaroo Falls Dam, is a major ungated concrete gravity dam with a central ogee spillway across the Barron River located on the Atherton Tableland in Far North Queensland, Australia.  The dam's purpose includes irrigation for the Mareeba-Dimbulah Irrigation Scheme, water supply, hydroelectricity, and recreation.  Completed between 1953 and 1958, the dam creates the impounded reservoir, Lake Tinaroo.

Silverdale, New South Wales: Silverdale is a small town in New South Wales, Australia, in Wollondilly Shire.  Approximately 30 minutes from the city of Camden, Silverdale is close to the historic township of Warragamba, and the main water supply for Sydney, Warragamba Dam.

Tantangara Dam: Tantangara Dam is a major ungated concrete gravity dam with concrete chute spillway across the Murrumbidgee River upstream of Adaminaby in the Snowy Mountains region of New South Wales, Australia.  The dam is part of the Snowy Mountains Scheme, a vast hydroelectricity and irrigation complex constructed in south-east Australia between 1949 and 1974 and now run by Snowy Hydro.  The purpose of the dam includes water management and conservation, with much of the impounded headwaters diverted to Lake Eucumbene.  The impounded reservoir is called Tantangara Reservoir.

Kings Tableland, New South Wales: Kings Tableland is a ridge in the state of New South Wales, Australia in the Wollondilly Shire.  It extends southwards from Wentworth Falls and is the eastern boundary of the Jamison Valley.  At the southern end is McMahon's Lookout, with views over Lake Burragorang.  There are also views from several points along the ridge, accessed via paths breaking off the main fire trail.  The ridgetop fire trail itself is accessible to 4WD and AWD vehicles in good weather conditions, and is used as a mountain biking (MTB) route.

Hume Dam: Hume Dam, formerly the Hume Weir, is a major dam across the Murray River downstream of its junction with the Mitta River in the Riverina region of New South Wales, Australia.  The dam's purpose includes flood mitigation, hydro-power, irrigation, water supply and conservation.  The impounded reservoir is called Lake Hume, formerly the Hume Reservoir.  It is a gated concrete gravity dam with four earth embankments and twenty-nine vertical undershot gated concrete overflow spillways.

Chichester Dam: Chichester Dam is a minor concrete gravity dam across the Chichester and Wangat rivers, upstream of Dungog, in the Hunter Region of New South Wales, Australia.  The dam's main purpose is water supply for the Lower Hunter region.  A mini hydro-electric power station operates at times of peak flow and is connected to the national grid.  The impounded reservoir is Lake Chichester.

Burragorang, New South Wales: Burragorang or Burragorang Valley is a locality in the Macarthur Region of New South Wales, Australia, in Wollondilly Shire.  It is home to Lake Burragorang, which is impounded by Warragamba Dam.  It is located within the Blue Mountains National Park – specifically the Nattai National Park.

Supporting paragraphs: Burragorang, New South Wales Warragamba Dam
Answer: Sydney