{"id":5379,"date":"2020-11-11T12:59:51","date_gmt":"2020-11-10T23:59:51","guid":{"rendered":"http:\/\/fraserthomas.wpengine.com\/?post_type=projects&p=5379"},"modified":"2024-03-20T16:28:47","modified_gmt":"2024-03-20T03:28:47","slug":"colin-dale-park-motorsport-development-water-supply","status":"publish","type":"projects","link":"https:\/\/fraserthomas.co.nz\/projects\/colin-dale-park-motorsport-development-water-supply\/","title":{"rendered":"Colin Dale Park Motorsport Development \u2013 Water Supply"},"content":{"rendered":"\t\t
The Park will create a world class facility, providing for a range of motorsport activities including BMX, radio controlled miniature cars, Motocross, off-road racing, go-karts and small jet boats in an artificial \u201cJet Sprint\u201d pond. All these groups (except Jet Sprint) use large quantities of water for dust control and track wetting.<\/p>
The CDP site is located outside the Auckland Council Rural Urban Boundary and is not provided with a public water supply connection. An existing on-site farm bore is old (circa 1970\u2019s) and is to be abandoned as part of the development.<\/p>
Water supply for the Colin Dale Park will be provided instead by a proposed new groundwater bore that will extract water from a depth of 200-250m into the deep underlying Sandstone Waitemata aquifer (available volume = 660,000m3\/year). Based on a desktop study, site investigations and consulting with Auckland Council\u2019s Groundwater Team, it is anticipated such a bore can produce high quality water with a good yield.<\/p>
This bore will supply groundwater for both potable and non-potable use, except that the Jet Sprint pond water demand will be met by collection of stormwater runoff from its contributing catchment (carpark and accessway), while the Kartsport non-potable water demand will be met by rainwater harvesting from its facilities.<\/p>
The estimated annual water demand is 10,500m3\/year, with an estimated peak daily demand of 155m3\/d at a pump rate of some 11m3\/h. A groundwater take of 12,600m3\/year, allowing for 20% contingency, with no change in the peak daily demand was applied for and granted.<\/p>
Water will be distributed around the site by a conventional reticulation network, with most user groups having their own water storage tanks to satisfy their peak demands and to reduce overall peak water demand.<\/p>
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Separate fire fighting storage of 45m3 or 180m3 will be provided for a shared clubroom buildings. Water supply storage and reticulation requirements were sized using EPAnet software.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t