Weathering the storm [Electronic version]. Onsite Water Treatment
http://www.gradingandexcavating.com/ow_0611_weathering.html
Polyethylene tanks certified to rigorous CSA standard [Electronic version]. Environmental Science & Engineering
http://www.ese.dgtlpub.com/data/flash/ESE/9000000382/home.html
Regulation, preference & technology combine to change septic tank industry [Electronic version]. American Liquid Waste
http://www.americanliquidwaste.com/index.php?a=magazine
