Chain of Custody Forms TC Chain of Custody Standard Chain of Custody Oregon TC C.O.C. Sampling Instructions DEQ - General Information PageDEQ - Sampling VideosINORGANIC SAMPLING INSTRUCTIONSTC SAMPLING INSTRUCTIONSLEAD & COPPER SAMPLING INSTRUCTIONS Other Resources Idaho Groundwater Quality MapDHW - Quick Tips for Well WaterInfo for Wells infected with Coliform BacteriaEPA - Emergency Disinfection of Drinking Water
