Arsenic → Cancer → Cardiovascular Disease → Diabetes Click Here to Learn More Chlorine → Asthma → Eczema → Food Allergies Click Here to Learn More Fluoride → Arthritis → Osteoporosis → Fatigue Click Here to Learn More Hard Water → Cardiovascular Disease → Cancer → Alzheimer's Disease Click Here to Learn More Hydrogen Sulfide → Clogged Plumbing → Stains on Silverware → Corrosion of Pipes Click Here to Learn More Iron → Persistent Nausea → Mental Dysfunction → Discolored Clothes Click Here to Learn More Lead → Brain Damage → Hypertension → Reproductive Problems Click Here to Learn More Low pH → Acid Reflux → Frequent Heartburn → Corrosion of Metals Click Here to Learn More Manganese → Problems with Memory → Problems with Motor Skills → Developmental Problems Click Here to Learn More Microbes → Diarrhea → Vomiting → Headaches Click Here to Learn More Nitrates → Cancer → Methemoglobinemia → Thyroid Disease Click Here to Learn More PFOS → Reduced Immune Response → Decreased Hormone Levels → Elevated Cholesterol Click Here to Learn More Pharmaceuticals → Cancer → Diabetes → Impaired Fertility Click Here to Learn More Sediment → Damaged Appliances → Damaged Plumbing Fixtures → Bad Water Taste and Odor Click Here to Learn More