Below is a list of some common water attributes and their associated contaminates:

Visual Issue
Blue/Green- Copper
Blue/Black- Manganese
Red/Rust- Iron
Cloudiness- Turbidity, Color, may suggest high arsenic levels than can be naturally occurring in silt from this area.

Sink Stains
Blue/Green- Copper
Blue/Black- Manganese
Red/Rust- Iron
White- Hardness (Calcium/Magnesium)

Odor/Taste
Rotten Egg- Hydrogen Sulfide/Sulfate Sulfate-reducing bacteria
Salty- Chloride, Conductivity or Total Dissolved Solids
Metallic- Iron, Copper, Manganese