Well Fact Sheets

• Coliform bacteria information [PDF]
• Disinfecting your well [PDF]
• Maintaining your well [PDF]
• Preventing pesticide contamination [PDF]
• Testing your well [PDF]

Applications and Forms (all forms and applications are in PDF format)

• 2-Party Water System
• Water System Design
  (both Supplemental and Master Applications required)
• Supplemental Application (Guidelines)
• Master Application (Guidelines)
• Locating or Recreating a Water Well Report Fact Sheet

• Covenants
• Declaration of Covenant
• Public Water Source (Note: legal-sized paper needed)
• Non-Public Water Source (Note: legal-sized paper needed)
• Covenant Fact Sheet
• Restrictive Covenant
• Public Water Source (Note: legal-sized paper needed)
• Non-Public Water Source (Note: legal-sized paper needed)
• Covenant Fact Sheet

• Certificate of Water Availability (COWA)
• System
• Connection to a Public Water System
• Certified Water Sample (Health Dept Pick-up)
• Group B Water System
  (both Supplemental and Master Applications required)
• Supplemental Application (Guidelines)
• Master Application (Guidelines)
• Locating or Recreating a Water Well Report Fact Sheet
• Loan Certification — Evaluation of Existing Water System and/or Sewage System
• Priority of Service Application - Water System
• Request for Waiver from Sanitary Code Provisions - Water Supplies
• Well Construction/Decommissioning Application (Guidelines)
• Well Site Inspection (2-Party, Group B, or Group A)
  (both Supplemental and Master Applications required)
• Supplemental Application (Guidelines)
• Master Application (Guidelines)

General Drinking Water Information

• Drinking Water and Health: What You Need to Know — U.S. Environmental Protection Agency
• WA State Dept of Health Drinking Water Program
• City of Olympia Water Quality
• City of Lacey Drinking Water Report
• City of Tumwater Water Resources

Water Treatment

• NSF International — Independent testing and certification organization that provides information on contaminants, water treatment devices, certification standards, and NSF certified water treatment models.
• Purifying Household Water [PDF] — WA State Dept of Health

Drinking Water / Well Contamination

• Troubleshooting Checklist for Coliform Contamination [PDF] — WA State Dept of Health, Office of Drinking Water
• Nitrate in Drinking Water (English or Spanish) — WA State Dept of Health, Office of Drinking Water
• Lead in Drinking Water — WA State Dept of Health, Office of Drinking Water
• Copper in Drinking Water — WA State Dept of Health, Office of Drinking Water
• Arsenic in the Environment [PDF] — WA State Dept of Health, Office of Drinking Water
• Arsenic and Your Private Well [PDF] — WA State Dept of Health
• When Arsenic is Detected in Drinking Water [PDF] — WA State Dept of Health
• Arsenic in Drinking Water [PDF] — WA State Dept of Health
• ToxFAQs for Arsenic — Agency for Toxic Substances and Disease Registry
• ToxFAQs for Copper — Agency for Toxic Substances and Disease Registry
• ToxFAQs for Lead — Agency for Toxic Substances and Disease Registry

Other Well Information

• Water System Designers [PDF] — List of Thurston County certified designers
• Well Logs — WA State Dept of Ecology
• Well Construction for Property Owners — WA State Dept of Ecology
• Private Drinking Water Wells — U.S. Environmental Protection Agency

Information for Well Drillers

• Well Construction or Decommissioning Inspection
• Well Construction / Decommissioning Process Checklist