OHA Drinking Water Services
OR41
PWS ID: 00218 ---- CORNELIUS, CITY OF

Required Operators
Distribution Level 2
  • Oregon Administrative Rule:
    333-061-0235 OPERATOR REQUIREMENTS LEVELS 1-4
  • Requirements:
    HS/GED and 3 years experience,
    OR
    HS/GED and 1 year relevant post-high school education and 2 years experience
Cross Connection Control Specialist
  • Oregon Administrative Rule:
    333-061-0070 Cross Connection Control Requirements
  • Requirements:
    In community water systems having 300 or more service connections, water suppliers must ensure at least one person is certified as a Cross Connection Control Specialist, unless specifically exempted from this requirement by the Authority.
Name Distribution
Level		 Treatment
Level		 Filtration
Endorsement		 Small Water
Certification		 BAT
Certification		 CCS
Certification		 CCB # LCB # Phone
Number		 Email Expiration
Dates		 Sort DRC
Rowland D. Donker D2-6335



503-357-3011 Rowland.Donker@corneliusor.gov 12/31/2026 (D) 0
Ryan S. Howell D3-08043
DRC


CCS-8043503-992-5364 Ryan.howell@corneliusor.gov 12/31/2026 (D)
12/31/2026 (CCS)		 2
William W. Hartmann D2-948748


CCS-948748503-357-3011 william.hartmann@corneliusor.gov 12/31/2026 (D)
12/31/2026 (CCS)		 0
Tyler J. Dougherty D1-809168



503-369-0020 Tyler.Dougherty@corneliusor.gov 12/31/2026 (D) 0


Abbreviations:  BAT = Backflow Assembly Tester, CCS = Cross Connection Specialist, D = Distribution, DRC = Direct Responsible Charge, OIT = Operator in Training, SWS = Small Water System, T = Treatment

DRCs are marked in bold and listed first.