Water Quality and Common Treatments for Private Drinking Water .
Jun 2, 2006 . State laws do not require testing of private domestic water supplies, and .. Manganese (Mn), Molybdenum (Mo), Nickel (Ni), Silica (Si), Sodium (Na), Zinc . could contain lead solder, which could leach into your drinking water. .. The sand filter consists of a tank containing an 18- to 24-inch-deep bed of.