OHA Drinking Water Services
OR41
PWS ID: 00580 ---- NORTH CLACKAMAS COUNTY WC

Required Operators
Treatment Level 3
  • Oregon Administrative Rule:
    333-061-0235 OPERATOR REQUIREMENTS LEVELS 1-4
  • Requirements:
    HS/GED, 1 yr relevant post-high school, and 5 yrs experience, with 2.5 yrs of ODM;
    OR
    HS/GED, 2 yrs relevant post-high school, and 4 yrs experience with 2 yrs of ODM;
    OR
    HS/GED, 3 yrs relevant post-high school, and 3 yrs experience with 1.5 yrs of ODM
Name Distribution
Level		 Treatment
Level		 Filtration
Endorsement		 Small Water
Certification		 BAT
Certification		 CCS
Certification		 CCB # LCB # Phone
Number		 Email Expiration
Dates		 Sort DRC
Steven M. Prestwood
T3-08060FE-0027


 stevenp121@gmail.com 12/31/2027 (T) 0
Bo H. Doan D1-9357T2-9357


971-235-6705 BDoan20@gmail.com 12/31/2026 (D/T) 0
Ashley J. Beaty D2-587415T3-587415


971-429-0676 aj.reeder88@gmail.com 12/31/2026 (D/T) 0
Benjamin W. Koepke
T3-735089


503-432-3646 bkoepke@nccwc.us 12/31/2026 (T) 0
Timothy B. Schrupp
T3-211195


503-723-3505 tschrupp@nccwc.us 12/31/2027 (T) 0
Brent A. Carrar
T3-355512
DRC


503-486-9517 brent.carrar@veolia.com 12/31/2026 (T) 2
Gabriel J. Dettmer


BAT-182639CCS-182639971-334-2546 gjdettmer@gmail.com 12/31/2026 (BAT/CCS) 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.