Industry News

Thiobencarb Update with Exceedance Report

tractor at sunset

Monitoring results were at the performance goal of 1.5 µg/L on May 12 and May 28. The detections were noted at the Colusa Basin Drain 5 and Butte Slough 1 sites. On June 2, the duplicate sample for quality control had an exceedance of 1.8 µg/L while the standard lab result was at 1.2 µg/L. The samples were from the Colusa Basin Drain 1 site outside Knight’s Landing. All sampling results recovered to non-detection levels on June 4.  

These are impressive monitoring results, considering the recent weather challenges throughout the Sacramento Valley. 

Note: Thiobencarb water quality monitoring results are measured in micrograms per liter (µg/L), which are expressed as  parts per billion.

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Grower Reporting Requirements for WDR Orders

This is the time of year we receive calls asking where to report Farm Evaluations and various other information for the Waste Discharge Requirements (WDR) Order. The WDR Orders were amended in 2018, resulting in changes to the grower reporting requirements. A table listing side-by-side requirements with the Rice WDR and the Sacramento River Watershed WDR, the coalition for non-rice crops, is our effort to provide you with timely information. 

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