Group B Public Water Systems—Resources

Resources For Applicants, Owners, and Operators

Operations and Maintenance References

Asset Management for Small Systems 331-445 (PDF)

Chlorination Controls 331-398 (PDF)

Coliform Sampling Procedure 331-225 (PDF)

Color, Taste, and Odor Problems 331-286 (PDF)

Emergency Response Planning Guide 331-211b (Word)

Flood Advice for Drinking Water Systems 331-300 (PDF)

How to complete a Coliform Lab Slip 331-247 (PDF)

Nitrate Sampling Procedure 331-222 (PDF) | Spanish (PDF)

Preventative Maintenance Program 331-351b (PDF)

Private Wells: Information for owners 331-349 (PDF)

Public Health Advisory: Coliform 331-179 (PDF) | Spanish (PDF)

Pump House Piping 331-406 (PDF)

Pressure Relief Valves on Pressure Tanks 331-429 (PDF) | Spanish (PDF)

Radionuclides In Drinking Water 331-056 (PDF)

Sanitary Protection of Reservoirs—Vents 331-250 (PDF) | Spanish (PDF)

Sanitary Protection of Reservoirs—Hatches 331-249 (PDF) | Spanish (PDF)

Simple Fixes for Wellhead Openings 331-232 (PDF) | Spanish (PDF)

Start-Up and Shut-Down Assistance for Seasonal Noncommunity Water Systems webpage

Treatment of Drinking Water for Emergency 331-115 (PDF)

Troubleshooting Bladder Pressure Tanks 331-342 (PDF) | Spanish (PDF)

Troubleshooting Checklist for Coliform Contamination 331-180 (PDF)

Water Rates: Paying for Drinking Water 331-327 (PDF)

Design and Approval References

Project Approval Application 331-149-F (Word)

Construction Completion Report 331-121F (Word)

Approved Satellite Management Agency list webpage

County assignments of ODW staff—planners and engineers

Covenants for Public Water Supply Protection 331-048b (PDF) 

Example of information notice to title (property disclosure) (Word)

Group B Design Guidelines 331-467 (PDF)

Group B Design Workbook 331-468 (Word)

Group B Regulations, chapter 246-291 WAC

Pitless Unit, Pitless Adaptors, and Water Tight Well Caps webpage

Water system adequacy webpage

Water System Design Manual (for Group A systems) 331-123 (PDF)

Public Notice References

E. coli in water system 331-484 (Word)

Nitrate above the MCL 331-485 (Word)

Arsenic in the water system 331-482 (Word)

Cross-connection event 331-495 (Word)

Wellhead flooding 331-481 (Word)

Loss of Pressure 331-480 (Word)