We're looking for analysis for NORM (mostly Radium 226/228 but also Pb-210 in gas processing equipment) in oil production sludges. Are there any "approved"/"certified" (EPA Method, NAVLAP, State or whatever) radiochem labs or protocols for this. Send responses to me at: ccmail.gkrause@ranch.state.nd.us Greg Krause North Dakota Radiation Control Program