Extension of Comment Period - MADL for Atrazine, Propazine, Simazine, 2,3-Diamino-6-Chloro-S-Triazine (DACT), Des-Ethyl Atrazine (DEA), and Des-Isopropyl Atrazine (DIA)

On June 12, 2015, OEHHA published a notice in the California Regulatory Notice Register proposing to adopt Maximum Allowable Dose Levels (MADLs) of 100 micrograms per day for oral exposure to atrazine, propazine, simazine, 2,3-diamino-6-chloro-s-triazine (DACT)*, des-ethyl atrazine (DEA), and des-isopropyl atrazine (DIA), by amending Title 27, California Code of Regulations, section 25805.

Publication of the prior notice initiated a 45-day public comment period that was scheduled to close on July 27, 2015. OEHHA has received a request for an extension from Syngenta Crop Protection. OEHHA hereby extends the public comment period on this proposed amendment to 5 p.m., Thursday, October 1, 2015.

Written comments, along with any supporting documentation, may be transmitted via email addressed to monet.vela@oehha.ca.gov or to:

Ms. Monet Vela
Office of Environmental Health Hazard Assessment
Street Address: 1001 I Street, 23rd Floor
Sacramento, California 95814

Mailing Address:  P.O. Box 4010 Sacramento
California 95812-4010

Fax No.:  (916) 323-2517    
Telephone: (916) 323-2610

* Note: DACT was incorrectly identified as 2,3-diamino-6-chloro-s-triazine (instead of 2,4-diamino-6-chloro-s-triazine). That typographical error will be corrected when the chemicals are ultimately added to the list.

1 A challenge to the listing of these chemicals is being heard by the court in Syngenta Crop Protection v OEHHA (Sacramento Superior Court case#34-2014-800001868 on September 18, 2015.) The effective date of the chemical listings has been postponed until October 1, 2015 pending that hearing as well.

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