File:Christchurch Trickling Filters.jpg: Revision history

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11 March 2022

22 June 2009

25 March 2008

24 March 2008

  • curprev 23:1323:13, 24 March 2008‎ imported>Milton Beychok‎ 897 bytes +897‎ {{Image notes bypermission |Description = Photograph of trickle filters in water and waste treatment unit at Christchurch, New Zealand |Author = City Water and Waste unit, Christchurch, New Zealand |Date = Don't know |Source = Email from City Water and Waste Unit, Christchurch, New Zealand |Country first published in = New Zealand |Copyright holder = City Water and Waste unit, Christchurch, New Zealand |Notes = I emailed the the Christchurch City Council on March 20, 2008 and asked permission...
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