Inventory Updates

• Treatment Codes
• Water system classification for operator certification requirements:
  Water treatment plants and distribution systems at community and non-transient non-community public water systems are classified based on the size and complexity of the water system facility according toOAR-333-061-0220. Classification of a water system or water system facility determines the level of certification required for operators in direct responsible charge of a water system or water system facility as prescribed byOAR 333-061-0225. Use either of the following worksheets to classify a water system: PDF -or- Excel 
  
  

The following documents are password protected:

• Chemical and Bacteriological Monitoring Schedule Change Form: fillable MS Word -or- printable PDF
• Entry Structure Diagram:
  
  • Refer to the treatment code list (above) when filling out this form.
  • Entry Structure Diagram (includes drawing grid)
    
  • Entry Structure Form and Drawing Grid
• Source Information: fillable MS Word -or- printable PDF
  
• Water System Inventory Updates
• If both inventory and contact updates need to be made, submit all updates on the Inventory Update form. Please do not submit a separate contact update form.
• Contact Update Form: For contact changes only. Log into Data Online web forms, select "Water System Contact Info," and search for water system under "Water System Contact Updates."
  
• Inventory Update Form: For changes other than or in addition to contact updates. Revised 05/12/2022
• State staff should use Survey123 for all inventory and contact updates.
  
• Waiver request and associated procedure to reduce monitoring from annual to once every three years after a VOC contaminant was detected.