General Sampling Requirements

For HAA5 samples: pre-cleaned, 50 mL or 250 mL amber glass bottles/vials with Teflon-lined screw caps (50 mL vials for EPA Methods 552.2 and 552.3; 250 mL bottles for EPA Method 552.1). Include 5 mg ammonium chloride per 50-mL bottle/vial if free chlorine residual is present. ................
................