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When I have the time, I'll have a look at the legal structure of LGAs in WA. I had forgotten that we have ""regions of councils"" (e.g. ""Eastern Metropolitan Region of Councils"" (""EMROC""), ""North East Wheat Belt Region of Councils"" (""NEWROC""), etc) that cooperate for economies of scale in things like garbage disposal. This could have a bearing. Hesperian "