Secondary Standards Contaminants
Contaminant or Condition
Category
Property
EPA mg/L or Upper Limit Range
KYH2O
USA
mg/L
*1USA
mg/L
KYH2O
World
mg/L
*1World
mg/L
Effect
Name
Aluminum
AluminumCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
0.05 to 0.2
KYH2O USA
0.05
KYH2O World
0.05
KYH2O World
Gray-colored water
Name
Fluoride
FluorideCategory
Inorganics
MCL (mg/L)
Cosmetic
MCLG (mg/L)
2
KYH2O USA
0.8
KYH2O World
0.8
KYH2O World
Tooth discoloration
Name
Chloride
ChlorideCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
250
KYH2O USA
250
KYH2O World
250
KYH2O World
Salty taste; corrosion
Name
Copper
CopperCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
1
KYH2O USA
1
KYH2O World
1
KYH2O World
Metallic taste, staining, corrosion by-product
Name
Foaming Agents
Foaming AgentsCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
0.5
KYH2O USA
0.5
KYH2O World
0.5
KYH2O World
Frothy, foamy, cloudy, bitter taste, odor, gastrointestinal discomfort
Name
Manganese
ManganeseCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
0.05
KYH2O USA
0.05
KYH2O World
0.05
KYH2O World
Brown to black staining, brown to black colored water, black particles, bitter metallic taste
Name
Iron
IronCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
0.3
KYH2O USA
0.3
KYH2O World
0.3
KYH2O World
Yellow, orange, brown, to red discolored water, yellow, brown, orange, red, and black staining, laundry discoloration, metallic taste
Name
Silver
SilverCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
0.1
KYH2O USA
0.03
KYH2O World
0.03
KYH2O World
Skin discoloration, graying of the white part of the eye
Name
Total Dissolved Solids
Total Dissolved SolidsCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
500
KYH2O USA
500
KYH2O World
1000
KYH2O World
High total hardness (scale formation), alkaline taste, coatings and films on fixtures and surfaces, colored water, salty water
Name
Sulfate
SulfateCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
250
KYH2O USA
250
KYH2O World
500
KYH2O World
Salty taste, gastrointestinal issues, diarrhetic, may play a role in water corrosion
Name
Corrosive or Scale-forming Water
Corrosive or Scale-forming WaterCategory
Conditions
MCL (mg/L)
Technical
MCLG (mg/L)
Corrosivity Index of > - 0.5 to < 0.5 Non-corrosive and non-scale forming
KYH2O USA
Corrosivity Index of > - 0.5 to < 0.5 Non-corrosive and non-scale forming
KYH2O World
Corrosivity Index of > - 0.5 to < 0.5 Non-corrosive and non-scale forming
KYH2O World
Metallic taste, corrosion of piping, equipment failure, scale formation,� equipment efficiency reduction
Name
Odor
OdorCategory
Conditions
MCL (mg/L)
Aesthetic
MCLG (mg/L)
3 TON (Threshold Odor Number)
KYH2O USA
3 TON (Threshold Odor Number)
KYH2O World
3 TON (Threshold Odor Number)
KYH2O World
The water has a detectable or strong odor such as: chemical, musty, metallic, rotten egg, or sewer-like.
Name
Color
ColorCategory
Conditions
MCL (mg/L)
Aesthetic
MCLG (mg/L)
15 color units
KYH2O USA
15 color units
KYH2O World
15 color units
KYH2O World
Visible tint or color
Name
Zinc
ZincCategory
Inorganics
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
5
KYH2O USA
2
KYH2O World
2
KYH2O World
Metallic taste
Name
pH
pHCategory
Conditions
MCL (mg/L)
Aesthetic
Technical
MCLG (mg/L)
6.5 - 8.5
KYH2O USA
6.5 - 8.5
KYH2O World
6.5 - 8.5
KYH2O World
Low pH may be associated with bitter taste and corrosion, high PH may be associated with slimy feel, alkaline taste, chemical scale
Notes
*1
KYH2O USA - This is our recommended quasi drinking water standard based on a review of regulations from the U.S EPA, other U.S States, and the Bottled Water Industry.
KYH20 World - This is our recommended quasi drinking water standard based on a review of regulations from the U.S EPA, other U.S States, the Bottled Water Industry, the World Health Organization (WHO), and other nations.
