- National Primary Drinking Water Regulations
Primary drinking water quality standards for Public Water Supplies for 85 contaminants known as Primaries. These contaminants are monitored for and compared against Maximum Contaminant Levels (MCLs) or a required Treatment Technique (TT). MCLs are the maximum allowable level of a contaminant in drinking water and are defined under the SDWA as levels that are as close to the MCLG (Maximum Contaminant Level Goal) as can be achieved using the best available technology, treatment techniques and taking cost into consideration. MCLGs are determined based on health effect studies and take into account sensitive subpopulations such as infants, children, elderly and immuno-compromised individuals. MCLGs are set as the maximum level of a contaminant in drinking water at which no known or anticipated adverse effect on the health of a person should occur. MCLGs are non-enforceable as they consider only health effects and do not factor in detection limits or treatment technology.
DrinkWell uses the MCLs set by the EPA when comparing your data to an allowable limit as these are the Federal benchmark for these contaminants.
- National Secondary Driking Water Regulations
Secondary drinking water standards sets limits for Public Water Supplies for 15 contaminants that present aesthetic issues in water quality such as taste, odor or smell. These contaminants are not considered to pose health risks and were set to help guide Public Water Supplies to address potential aesthetic problems with water quality
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