UCMR4 Preserved Containers

UCMR4 Made EasyUnregulated Contaminant Monitoring Rule 4 (UCMR4) requires monitoring of all public drinking water systems with 10,000 or more customers. The EPA Methods within UCMR4 have rigorous container preserving requirements, some of which are exceedingly complex. 

QEC has a comprehensive program that meets the specific container and preservation requirements spelled out in UCMR4.

QEC has been a major supplier of specially prepared containers for UCMR1, UCMR2, UCMR3 and now UCMR4. Our extensive experience and expertise in container preserving has earned QEC a reputation as a trustworthy partner with a proven track record.

Contact QEC by email, or call 800-255-3950) to discuss your UCMR4 container and preserving needs.

EPA Method

Contaminants

Container Type

Preservative

200.8 Metals HDPE Nitric Acid
525.3 Pesticides & By-product Amber Glass

L-Ascorbic Acid, EDTA trisodium salt, Potassium dihydrogen citrate

530 Semi-Volatiles Amber Glass

L-Ascorbic Acid, EDTA trisodium salt, Diazolidinyl Urea, Tris(hydroxymethyl) aminomethane,
Tris(hydroxymethyl) aminomethane hydrochloride

541 Alcohols Amber Glass Sodium Sulfite, Sodium Bisulfate
544 Brominated Haloacetic Acid (HAA) Groups Amber Glass Ammonium Chloride
544 Cyanotoxins Amber Glass Trizma, Chloroacetamide, Ascorbic Acid, EDTA trisodium salt
545 Cyanotoxins Amber Glass Sodium Bisulfate, Ascorbic Acid
546 Cyanotoxins Amber Glass Sodium Thiosulfate
522.3 or 545.7 Brominated Haloacetic Acid (HAA) Groups Amber Glass Ammonium Chloride