March 7 1995 Thalaba Creek 0.2ug/L
June 1996 Thalaba Creek 0.83ug/L
October 1997 Thalaba Creek, Merrywinebone
Chlorpyrifos 0.13ug/L
Source: Muschal
October 1997: Thalaba Creek Fluometuron 31ug/L
*Cooperative Research Centre for Sustainable Cotton Production. Proceeding of the Cropping Systems Forum 2 & 3 December 1998 Narrabri NSW