Mangahao release scheduled for Saturday 18 October February 11th, 2020 2008-09-09T22:49:58+12:00 [9 September] NZRCA and King Country Energy have agreed to a Mangahao release on Saturday 18 October. Negotiations are continuing regarding a replacement for a previously cancelled release, likely to happen in September or October. Update: 13 September: To make up for past release dates where no water was released, an additional release has been scheduled for Saturday 4 October and the October 18 release will be 40cu instead of the usual 30cu (expect a pushier, more exciting run). Access