CHRS Clay Finder CHRS Clay Finder Enter your UK postcode or area code (e.g., OX, YO, N1): Check Clay Suitability CHRS Weekly Data Simulator Select Clay Type: Oxford Clay Vale of York Clay London Clay Gault Clay Weald Clay Mercia Mudstone Kimmeridge Clay Stack Length (m): 200 300 400 500 600 700 800 Simulate Weekly Data