Course: BFM 203 Water Treatment and Control

Lecture

(3/5)

Acronyms in Water Regulations

When reviewing drinking water regulations, you will see a large number of acronyms and terms with which you may be unfamiliar. Understanding these acronyms is important for effective communication with operations staff, regulators, and customers. Memorization of each acronym and its meaning is critical for successful completion of operator certification exams.The following table lists a series of acronyms (in alphabetical order) along with the associated meaning of each.

Acronyms
Acronym | Meaning
AL | Action Level
BAT | Best Available Technology
BDL | Below Detection Limit
GAC | Granular Activated Carbon
GWS | Ground Water System
GWUDI | Groundwater Under the Direct Influence of Surface Water
HAA | Haloacetic Acid
MCL | Maximum Contaminant Level
MCLG | Maximum Contaminant Level Goal
mg/L | Milligrams per liter; equivalent to ppm
MRDL | Maximum Residual Disinfectant Level
MRDLG | Maximum Residual Disinfectant Level Goal
PAC | Powder Activated Carbon
ppb | Parts Per Billion
ppm | Parts Per Million
PWS | Public Water System
SMCL | Secondary Maximum Contaminant Level
THM | Trihalomethane
TNC | Too Numerous to Count
μg/L | Micrograms per liter; equivalent to ppb