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“Trespass grows” are illicit cannabis grows on public lands. Trespass grows constitute one of California’s leading environmental threats by poisoning wildlife on a landscape scale, contaminating water and soil with EPA-banned toxicants , and severely dewatering watersheds.

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www.cropproject.org

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Today Show "Mexican Cartels are Growing Marijuana in California's National Forests"

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NBC News"'We're one cigarette away': Illegal Marijuana Farms Pose Wildfire Risks in California's Parched National Forests"

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NPR "Illegal Pot Operations In Public Forests Are Poisoning Wildlife And Water"

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The Atlantic "The Environmental Catastrophe in Your Joint"

Project Goals:

1. Secure and increase state and federal resources for trespass grow reclamation

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2. Increase Forest Service law enforcement and overall presence in National Forests to prevent new grows from activating 

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3. Increase criminal penalties for those bringing toxicants onto public lands

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The Basics:
 

  • Trespass grows account for 40-70% of CA’s illicit cannabis market [1]

  • 80% of trespass grows are on national forest (NF) lands [2]

  • Over 90% of trespass grows are controlled by drug trafficking organizations (DTOs) [3]

  • Since 2000, over 23 million plants have been eradicated on CA NFs [4]

  • Since 2016, over 3 million plants have been eradicated on CA NFs [4]

  • Only 1 in 5 public lands cannabis plants are eradicated annually [2]

  • In 2018, 90% of sites contained lethal, controlled or banned pesticides [3], including Sarin-based malathion, Brodifacoum/Bromadiolone, Carbofuran, Methamidophos, and Cholecalciferol [5]

  • 30-40% of trespass grows go undetected [13]

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Impacts to Communities

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  • Contaminated watersheds; communities/tribes at great risk of toxicant exposure

  • Reduced flows for fisheries, agriculture, tribal gathering, timber production, etc.

  • Negative impact to local and state economy (e.g. costly clean-ups, increased enforcement)

  • Reduced access to public lands as “no-go areas” due to DTO grows

  • Recreation, hunting and other uses of public lands poses toxicant exposure risk

  • Undercuts the legal cannabis market

  • Loss in ecosystem services, such as clean water and air

To view references, click here

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Impacts to Wildlife

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  • 70% of Northern Spotted Owls (ESA Listed) poisoned by rodenticide [6]

  • 80% of Pacific fishers (ESA Candidate) tested positive for up to 5 rodenticides [7]

  • 92% of mountain lions statewide test positive for one or more pesticide, particularly rodenticides [8]

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Impacts to Water

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  • More than 9 billion gallons of water per year are illegally diverted for trespass grows, or 27,600 acre feet (a yearly water supply for nearly 30,000 homes, or the City of Redding) [12]

  • Watershed diversion from trespass grows can account for 23-50% of total surface flow [9]

  • Approximately 6 gallons of water per plant per day [10]

  • Water theft exceeds minimum instream flows for certain watersheds [11]

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