Answers to frequently asked questions
about water quality and contamination in private wells

Contaminants

• Arsenic in Drinking Water
• Bacteriological Contamination of Drinking Water
• Copper in Drinking Water
• Cryptosporidium in Drinking Water
• Iron in Drinking Water
• Iron Bacteria Problems in Wells
• Lead in Drinking Water
• Nitrate in Drinking Water
• Nitrate (Spanish translation) in Drinking Water
• Nitrate (Hmong translation) in Drinking Water
• Pesticides in Drinking Water
• Radium in Drinking Water
• Radon in Private Well Water
• Sulfur Bacteria in Your Well
• Volatile Organic Chemicals in Drinking Water

Other Information

• Answers to Your Questions about Groundwater
• Better Homes and Groundwater publication - How to help safeguard your water supply
• Earwigs in Your Well
• Tests for Drinking Water From Private Wells
• Contamination Possibilities from Submersible Well Pumps
• Grants for Replacing Contaminated Wells
• Well Filling and Sealing
• Well Chlorination in Arsenic Sensitive Areas
• You and Your Well