Mr. Kelly's question regarding average monthly residential water bills was answered with data on average monthly water use charges, excluding service fees. The response details changes in billing cycles and seasonal usage impacts on costs.

AnsweredQoN 2484Legislative Assembly
Asked
26 June 2014
Portfolio
Water

QuestionView source ↗

(a) - (w) The average monthly residential water bill for the metropolitan area is not available in the requested time periods due to the Water Corporation's reporting process. Below is the average monthly average water use charge for Perth Metropolitan residential properties. This does not include service charges for water, wastewater and drainage. (a) - (t) Table 1 shows figures prior to the commencement of two monthly billing. These figures are based on a 12-month average, and includes, summer and winter usage variations. Table 1 Period Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Below is the average monthly average water use charge for Perth Metropolitan residential properties. This does not include service charges for water, wastewater and drainage. (a) - (t) Table 1 shows figures prior to the commencement of two monthly billing. These figures are based on a 12-month average, and includes, summer and winter usage variations. Table 1 Period Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
(a) - (t) Table 1 shows figures prior to the commencement of two monthly billing. These figures are based on a 12-month average, and includes, summer and winter usage variations. Table 1 Period Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Table 1 Period Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Period Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Monthly Water use charge per property July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2008 - June 2009 $16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$16.63 July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2009 - June 2010 $19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$19.16 July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2010 - June 2011 $22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$22.34 July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2011 - June 2012 $26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$26.54 July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2012 - June 2013 $27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$27.73 (u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
(u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
(u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013. Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Table 2 Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Period Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
Monthly Water use charge per property July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
July 2013 - August 2013 * September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
* September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
September 2013 - October 2013 $21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$21.89 November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
November 2013 - December 2013 $25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$25.11 January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
January 2014 - February 2014 $52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$52.69 ** March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
March 2014 - April 2014 $47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
$47.67 ** * This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
* This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
* This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used. ** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.
** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.

AnswerView source ↗

Answered
13 August 2014
Responded by
Minister for Water
Response time
48 days
(a) - (w) The average monthly residential water bill for the metropolitan area is not available in the requested time periods due to the Water Corporation's reporting process.
Below is the average monthly average water use charge for Perth Metropolitan residential properties. This does not include service charges for water, wastewater and drainage.
(a) - (t) Table 1 shows figures prior to the commencement of two monthly billing. These figures are based on a 12-month average, and includes, summer and winter usage variations.
Table 1
Period
Monthly Water use charge per property
July 2008 - June 2009
$16.63
July 2009 - June 2010
$19.16
July 2010 - June 2011
$22.34
July 2011 - June 2012
$26.54
July 2012 - June 2013
$27.73
(u) - (w) Table 2 shows figures since commencing two monthly billing in July 2013.
Table 2
Period
Monthly Water use charge per property
July 2013 - August 2013
*
September 2013 - October 2013
$21.89
November 2013 - December 2013
$25.11
January 2014 - February 2014
$52.69 **
March 2014 - April 2014
$47.67 **
* This is a transition period. These were the first two monthly billing cycles. The water use charge in that period is for water use from two to six months. A four month average is used.
** From January 2014, the monthly water use increases due to the summer period and many customers move into the second taper price bracket. The yearly average for 2013/2014 is not a direct comparison to previous years because the first period (July 2013 - August 2013) has up to six months water usage included.

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