2011 update 37 year Perth dams catchment rainfall trend – nearly a Thousand GL of water wasted over 15 years by not managing catchments

In 2011 the Perth region has enjoyed an above average rain year – as shown in my graphic of 37 years of Perth dams catchment region May-October rainfall. This second graphic shows the constant decline in “catchment efficiency” CE since the late 1990’s – which was about the last time water authorities did much to … Continue reading 2011 update 37 year Perth dams catchment rainfall trend – nearly a Thousand GL of water wasted over 15 years by not managing catchments

2010 update 36 year Perth dams catchment rainfall trend

The Perth region has had a record dry year and this is shown in my graphic of 36 years of Perth dams catchment region May-October rainfall. However there is no statistically significant evidence the catchments are experiencing a continuing decline in rainfall – as expressed in the slogan “our drying climate” – the greenhouse doomster … Continue reading 2010 update 36 year Perth dams catchment rainfall trend

Perth dam catchments rainfall – how much is that?

It is obvious that BoM and Water Corporation rain stations are low down in catchments near the various dams – convenient near roads and easy for staff to monitor. Click on Select Using Map – Large areas of the catchments are not monitored by BoM rainfall stations. In 1997 this contour map showed annual average … Continue reading Perth dam catchments rainfall – how much is that?

Call to audit Perth dam rain gauges – Water Corporation announces two of their rain gauges are down for service

Could not make this up. “Please note the rainfall instruments located at Victoria Dam and Mundaring Weir are being serviced and are not currently recording rainfall. We are working to address this and resume measurement as soon as possible.” Still no reply to any emails to WA Govt on this issue. They must release all … Continue reading Call to audit Perth dam rain gauges – Water Corporation announces two of their rain gauges are down for service

West Australian Govt Water Corporation fails to record March 2016 rain at several dams

March 2016 rainfall has been checked for a group of sixteen BoM stations listed below and the nine rain stations of Water Corporation from their dam sites. Five of the nine dam sites of Water Corporation registered zero or negligible rain for March. This is obviously in error and is amazingly negligent for an organization … Continue reading West Australian Govt Water Corporation fails to record March 2016 rain at several dams

Friendly grilling for Perth Water Corporation at WA Parliament Estimates hearing

On 27 January 2016 the West Australian Parliament Legislative Council held an Estimates hearing with witnesses from the Govt owned Water Corporation. Scroll right down to “Water Corporation” 27 Jan 2016 and click on the bottom link – Transcript of hearing – for a 32p 325KB pdf. Working through the 32 pages – four issues … Continue reading Friendly grilling for Perth Water Corporation at WA Parliament Estimates hearing