Официальный ответ от министра природных ресурсов, лесного хозяйства и экологии Пермского края Источник:
http://xn--80aaaf9agbtgd4a3f4b.xn--p1ai/%d0%b1%d0%bb%d0%b0%d0%b3%d0%be%d0%b4%d0%b0%d1%80%d1%8f-%d0%be%d0%b1%d1%80%d0%b0%d1%89%d0%b5%d0%bd%d0%b8%d1%8e-%d0%b3%d0%b0%d0%b7%d0%b5%d1%82%d1%8b-%d0%bd%d0%be%d0%b2%d1%8b%d0%b9-%d0%ba%d0%b0/
http://xn--80aaaf9agbtgd4a3f4b.xn--p1ai/%d0%b1%d0%bb%d0%b0%d0%b3%d0%be%d0%b4%d0%b0%d1%80%d1%8f-%d0%be%d0%b1%d1%80%d0%b0%d1%89%d0%b5%d0%bd%d0%b8%d1%8e-%d0%b3%d0%b0%d0%b7%d0%b5%d1%82%d1%8b-%d0%bd%d0%be%d0%b2%d1%8b%d0%b9-%d0%ba%d0%b0/