City Check Basic:Tests for the most commonly found contaminants in municipal water supplies. This would include: 5 metals/minerals, 7 inorganic chemicals, 4 physical characteristics and 16 disinfection and disinfection by-products including chlorine, trihalomethanes and haloacetic acids.

City-Check Standard: is a more comprehensive version of the City-Check Basic package. This package tests 20 metals/minerals, 7 inorganic chemicals, 4 physical characteristics, 16 disinfection and disinfection by-products and 47 volatile organic compounds.

City-Check Deluxe: Covers all the items in both of the other City-Check testing packages then adds a group of 20 pesticides, herbicides and PCBs. Pesticides and herbicides are more likely to be present in water supplies that have surface water as their source.