Helpful Links
Click on any of the external links below for more help regarding your residential sewage questions.
(These links are intended to be informational and do not have
the endorsement of the Knox County Health Department.)

Association of Ohio Pedologists
http://www.ohiopedologist.org

National Onsite Wastewater Recycling Association
http://www.nowra.org/

National Precast Concrete Association
http://www.precast.org/

National Sanitation Foundation
http://www.nsf.org/

National Small Flows Clearinghouse
http://www.nesc.wvu.edu/nsfc/nsfc_index.htm

Ohio Onsite Wastewater Association
http://www.ohioonsite.org

Operator Training Committee of Ohio
http://www.ohiowater.org/otco/

OSU Soil Environment Technology Learning Lab
http://setll.osu.edu