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Marijuana grow operation found off of Cuesta Grade 

Marijuana grow op cuesta grade san luis obispo

Toxic pesticide found at the grow site

–On Thursday, San Luis Obispo County Sheriff’s Narcotics Detectives investigated a marijuana grow on the east side of Highway 101 approximately halfway up the Cuesta Grade.

Detectives say they discovered 5,880 marijuana plants on private land bordering national forest land near a tributary of San Luis Creek. Investigators say evidence at the scene indicates this was part of a Mexican National cultivation operation.

This type of operation, besides being illegal, produces many environmental hazards and generates large amounts of trash, according to the sheriff’s office. Agents with the state Department of Fish and Wildlife and experts with the San Luis Obispo County Public Health Department’s Environmental Health Services were brought on site to determine the extent of the damage.Marijuana grow operation

Among the toxic chemicals discovered was Carbofuran, a pesticide that was believed to have been applied to the marijuana plants. Environmental Health Specialists say Carbofuran was banned for use by the U.S. Environmental Protection Agency in 2006 for human health risk and eco-toxicity. This pesticide is toxic to birds and animals. It is also systemic, which means the pesticide is absorbed by the plant and ultimately ends up in the marijuana plant itself. To determine if the nearby water sources were contaminated, water samples were taken. Results are expected in approximately 10 days.

No arrests have been made. The investigation is continuing.



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About the author: News Staff

News staff of the Paso Robles Daily News wrote and edited this story from local contributors and press releases. Scott Brennan is the publisher of this newspaper and founder of Access Publishing. Connect with him on , Twitter, LinkedIn, Instagram, or follow his blog. He can be reached at