2004 October: 0.0025ug/L Endosulfan (TRIMPS)
2004 November: 0.0018ug/L Endosulfan (TRIMPS)
2004 December: 0.0087ug/L Endosulfan (TRIMPS)
2005 January: 0.0033ug/L Endosulfan (TRIMPS)
2005 February: 0.0121ug/L Endosulfan (TRIMPS), 0.01ugL Atrazine
2005 March: 0.0015ug/L Endosulfan (TRIMPS)
2005 April: 0.01ugL Atrazine
2005 August: Trace Atrazine
2005 September: 0.0007ug/L Endosulfan (TRIMPS), 0.021ugL Atrazine
2005 October: 0.0046ug/L Endosulfan (TRIMPS), Trace Atrazine
2005 November: 0.0032ug/L Endosulfan (TRIMPS), 0.0081ug/L (av), Trace Atrazine
2005 December: 0.0015ug/L Endosulfan (TRIMPS)
2006 January: 0.0015ug/L Endosulfan (TRIMPS), Trace Atrazine
2006 February: 0.0007ug/L Endosulfan (TRIMPS), 0.021ug/L Atrazine
2006 March: 0.0015ug/L Endosulfan (TRIMPS), 0.032ug/L Atrazine
2006 April: 0.04ug/L Atrazine