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Thiobencarb, Continued 1V. Emergency release requirements (Salinity damage): The county agricultural commissioner may authorize the emergency release of field water after a minimum 19 -day water -hold period after the last thiobencarb application, following the review of a written application that demonstrates salinity levels are damaging to the crop. A. Applicants for such emergency releases must provide the following information: 1. All information indicated on the emergency release request (Form A), including a description of the severity and extent of salinity damage. 2. Electrical conductivity (EC) measurements, expressed as deciSiemens per meter (dS/m) or microSiemens per centimeter ( &cm), from field water in each paddy suspected of having salinity problems. To most effectively demonstrate salinity problems, measurements should be taken wherever salinity problems are evident. 3. The instrument (make and model) used to determine EC measurements. The instrument must have a sensitivity range that accommodates the full range of EC values in intake and paddy water (usually a range of 0-5.0 dS/m or 0-5,000 /CS/cm should be sufficient) and should have a resolution of not less than five percent. The instrument must be calibrated according to the manufacturer's instructions. The applicant must specify the method of temperature compensation (i.e., automatic, conversion table). 4. Who made the EC measurements. 5. The source of irrigation water (e.g., district supply canal, drainage canal, well, etc.). B. An emergency release may be granted only if all of the following conditions are satisfied: 1. All required information is provided. 2. Water management requirements for rice pesticides other than thiobencarb are satisfied. 3. EC of paddy water exceeds 2.0 dS/m or 2,000 pS/cm. d. The county agricultural commissioner or his/her staff inspects the site. C. Water may be released from paddies where EC measurements exceed 2.0 dS/m or 2,000 ,uS/cm and from paddies down gradient from such paddies within the same field. Water shall only be released in an amount necessary to mitigate the salinity problem. D. Those issued an emergency release must submit to the county agricultural commissioner, a report (Form B) indicating the time and duration of the emergency release and data that can be used to calculate the total amount of water released during the emergency release. D-20 (Rev. 12-14)