Small systems that are part of the representative sample which become part of State Monitoring Plans must follow instructions given them for unregulated contaminant sampling and shipment to the designated laboratory. Method is adequate for monitoring. Method is adequate for monitoring. Methods are adequate for monitoring. In validation process EPA anticipates that this compound can be added to the scope of EPA Method 525.2.
Methods are adequate for monitoring.
Methods are adequate for monitoring. Methods are adequate for monitoring. Methods are adequate for monitoring. In validation process EPA is currently conducting analytical methods development to support the analyses of perchlorate. This new method will be based on the currently available ion chromatography methods, but will include a criteria detailing when a laboratory must perform a sample clean- up procedure to minimize the impact of elevated concentrations of chloride, sulfate or other dissolved solids.