To curtail illegal cannabis grows, water trucks aren't allowed on these Siskiyou roads Mount Shasta Herald In an attempt to curtail the transport of water to irrigate illegal cannabis grows, the Siskiyou County Board of Supervisors today approved an urgency ordinance that would make it a misdemeanor to drive a water truck on certain Siskiyou County roads and highways frequented by such traffic. Any truck that carries more than 100 gallons of water will be prohibited from traveling on specific roads in both the Butte Valley and Big Springs areas where such activity is rampant, effective immedi...