Definitions Of Some Terms Contained Within
This Report
Maximum
Contaminant Level Goal (MCLG):
The level of a contaminant in drinking
water below which there is no known or expected risk to health. MCLG's allow for a margin of safety.
Maximum
Contaminant Level (MCL)The highest level of contaminant that is allowed in drinking
water. MCL's are set as close to MCLG’s as feasible using the best available treatment technology.
Parts Per Million (ppm)or Milligrams Per Liter (mg/L) are units of measure for concentration of a contaminant. A part per million corresponds to one second
in a little over 11.5 days.Parts Per Billion (ppb) or Micrograms Per Liter (ug/L) are
units of measure for a concentration of a contaminant. A part per billion corresponds to one second in 31.7 years.
Action
Level (AL): The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system
must follow.
The
symbol < as used in this report stands for less than.
BDL: Below Detection Level