Pesticide Check for water quality testing is a uniquely designed test using an immunoassay (lateral flow) test strip. Designed to detect both the USEPA limit of 3 ppb (μg/L) for atrazine and 4 ppb (μg/L) for simazine, Pesticide Check is a cost-effective alternative to expensive laboratory testing. Yielding results in only 10 minutes, Pesticide Check for water quality testing saves you both time and money.