The Alberta government has announced two new varaiances to the 2009 code. One is the media in the mound and the other is the fixture loading on the system
Details are available at http://municipalaffairs.alberta.ca/cp_private_sewage_advisories.cfm
Also the home owners Tip Sheet maybe of value to your clients that have Private Sewage Dispoal Systems.
Also a new version of the 1999 handbook has been published.