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Comparison of the Top 20™, Top 30™, and Top 40™ packages
 with requirements for Public Water Systems.

 

Analytes Top 20™ Top 30™ Top 40™ Public Water System
MBAS*       X
Magnesium X X X  
Manganese X X X X
Mercury     X X
Molybdenum     X  
Nickel   X X X
Nitrate X X X X
Nitrite   X X X
Odor       X
pH X X X X
Potassium   X X  
Selenium   X X X
Silica     X X
Silver   X X X
Sodium X X X X
Strontium     X  
Sulfate X X X X
Thallium   X X X
TDS*     X X
Total Solids       X
Uranium     X  
Vanadium     X  
Zinc X X X X
Total 21 30 41 34
*LI = Langelier's Index of Corrosion
*TDS = Total Dissolved Solids
*MBAS = Methylene Blue Active Substances
Analytes Top 20™ Top 30™ Top 40™ Public Water System
Alkalinity     X X
Aluminum X X X X
Antimony   X X X
Arsenic X X X X
Barium X X X X
Beryllium   X X X
Boron X X X  
Bromide     X  
Cadmium X X X X
Calcium X X X X
Chloride X X X X
Chromium   X X  
Cobalt     X  
Color     X X
Conductivity X X X X
Copper X X X X
Cyanide       X
Fluoride X X X X
Hardness X X X X
Iron X X X X
LI*       X
Lead X X X  
Lithium X X X  

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