Water Quality Reports

Important Information

• Important Information About Lead in Your Drinking Water (PDF)
• Important Information About Your Drinking Water (PDF)
• Treatment Deferral Notice (PDF)

Quarterly Updates on Wellhead Treatment Progress, Potential Issues & Water Quality

• View Most Recent Quarterly Update
• View Past Quarterly Updates

Drinking Water Quality Reports

• View Most Recent Drinking Water Quality Report (PDF)
• 2024 Supplemental Data Package
• 2023 Water Quality Data
• View Past Drinking Water Quality Reports

Water Authority of Western Nassau County Water Quality Reports

• View Most Recent Nassau County Water Quality Report (PDF)
• View Past Nassau County Water Quality Reports