2017/18 Drain One (Grab Samples):

Winter: p,p,DDE 0.016µg/L (max), p,p,DDD 0.021µg/L (max), p,p,DDT 0.038µg/L (max), Metalaxyl 0.13µg/L (max), Tebuconazole 0.083µg/L (max), Metribuzin 0.014µg/L (max), Diuron 0.34µg/L (max), Simazine 0.098µg/L (max).

Spring: Metalaxyl 0.15µg/L (max), Diuron 3.6µg/L (max), Simazine 0.29µg/L (max).

Summer: Diuron 0.53µg/L (max), Simazine 0.22µg/L (max).

Autumn: Diuron 0.22µg/L

2017/18 Drain One (Chemcatcher Sampler):

Winter: Iprodione 0.045µg/L (max), Tebuconazole 0.075µg/L (max), Metribuzin 0.15µg/L (max), Atrazine 0.016µg/L (max), Diuron 0.18µg/L (max), Simazine 0.12µg/L (max)

Spring: Metalaxyl 0.19µg/L, Tebuconazole 0.047µg/L, Diuron 0.079µg/L, Simazine 0.35µg/L

Summer: Metalaxyl 0.012µg/L, Tebuconazole 0.012µg/L, Diuron 0.14µg/L (max), Simazine 0.14µg/L (max)

Autumn: Metalaxyl 0.014µg/L, Tebuconazole 0.041µg/L, Diuron 0.22µg/L, Simazine 0.096µg/L

Myers, JH., Sharp, S., Long, S., Kellar, C., and Pettigrove, V. (2018), Final Report Western Port Toxicant Study Stage 4: Assessment of pesticide risks in catchments of north-eastern Western Port, Aquatic Pollution Prevention Partnership, Technical Report No. 2, RMIT University, Victoria, Australia