Project Number:
DNR-125
Other Project Number:
WR95R003
Funding Year:
1995
Contract Period:
Funding Source:
UWS, DNR, DATCP
Investigator(s) and affiliations:
Ruth A. Schroeder, University of Wisconsin–Green Bay;
Ronald D. Stieglitz, University of Wisconsin–Green Bay;
James H. Wiersma, University of Wisconsin–Green Bay
Ronald D. Stieglitz, University of Wisconsin–Green Bay;
James H. Wiersma, University of Wisconsin–Green Bay
Abstract:
Summary: Three shallow, low-pressure dosed soil absorption fields receiving wastewater from septic tank systems using recirculating sand filters were evaluated for treatment effectiveness in removal of inorganic nitrogen and fecal coliform bacteria. At the location of these sites, Washington Island, WI, groundwater quality is threatened by on-site disposal because of the shallow, coarse soil and fractured bedrock present. This study is a follow-up to research conducted on the effluent from advanced-design on-site wastewater disposal systems prior to absorption field disposal.