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Certified Backflow Assembly Testers

Oregon Drinking Water Services (DWS) provides a public list of OHA-certified Backflow Assembly Testers. The list is voluntary and not all certified testers choose to be on the list. Select the county you want, and then you can sort by certification #, name of tester, employer, city, and state. If you are a certified specialist trying to verify a test report but don't see the tester on the list, email the DWS Cross Connection Program at cross.connection@dhsoha.state.or.us.

Only OHA-certified Testers are allowed to provide testing services in Oregon. Backflow Assembly Testers who provide their testing services for a fee are required to be licensed through the Construction Contractors Board (CCB) or the Landscape Contractors Board (LCB). Testers on the following list have provided information to DWS that they, or the company they work for, have either a CCB or LCB license; however, this information has not been verified. To verify licensing, you can look up CCB licenses or LCB licenses.

Certification Number Tester Name Phone Number Employer Address City State ZIP Code Expiration Date Numeric Cert SortName
008094 Richard E. Vanderkin 503-357-1444 Accurate Backflow PO Box 157 Forest Grove OR 97116 12/31/2023 8094 Vanderkin, Richard E.
008237 Kenneth L. Pisano 503-758-3255 Lovett Inc 6920 NE 42nd Ave Portland OR 97248 12/31/2023 8237 Pisano, Kenneth L.
058772 Steven C. Olson 503-449-4335 Peak Mountain Backflow, LLC 55600 E Highway 26 Sandy OR 97055 12/31/2023 58772 Olson, Steven C.
066108 Jordan T. Ashland 503-981-6131 Ashland Brothers Landscape 2153 Molalla Rd Woodburn OR 97071 12/31/2024 66108 Ashland, Jordan T.
106645 Joshua D. Harper 503-691-9000 Pye-Barker Fire and Safety 18260 SW 100th Court Tualatin OR 97062 12/31/2024 106645 Harper, Joshua D.
1461 James R. Olbrich 503-235-6141 COLUMBIA CROSS CONNECTION PO Box 9217 Portland OR 97207 12/31/2023 1461 Olbrich, James R.
237671 Donald J. Miller 541-632-0128 Abe Waterhouse, LLC 2617 Laurel Hill Drive Eugene OR 97403 12/31/2023 237671 Miller, Donald J.
2539 Scott Calvin 503-244-2146 Abel Irrigation & Lighting PO Box 80067 Portland OR 97280 12/31/2024 2539 Calvin, Scott
256834 Owen H.P. Johnston 503-449-2002 AMERICAN BACKFLOW SERVICES 5623 SE Center St Portland OR 97206 12/31/2024 256834 Johnston, Owen H.P.
283863 Timothy J. Lederer 503-655-3388 Evolution Plumbing 7210 NE 47th Ave Portland OR 97218 12/31/2023 283863 Lederer, Timothy J.
3284 Vince Kinman 503-253-0033 Advanced Irrigation Systems 4417 NE 70th Ave Portland OR 97218 12/31/2024 3284 Kinman, Vince
3532 Joseph S. Price 503-249-0771 United Fire & Safety 4611 NE Mlking Jr Blvd Portland OR 97211-3396 12/31/2023 3532 Price, Joseph S.
3625 Steven M. Patarozzi 503-360-4224 Green Leaf Irrigation & Landscaping PO Box 82228 Portland OR 97282 12/31/2023 3625 Patarozzi, Steven M.
3756 Paul W. Marshall 503-256-2223 Drakes 7 Dees PO Box 16190 Portland OR 97292 12/31/2023 3756 Marshall, Paul W.
3791 Matthew B. Bruton 503-618-1806 Bruton Backflow & Irrigation, LLC PO Box 1927 Fairview OR 97024 12/31/2024 3791 Bruton, Matthew B.
3823 Mark D. Anderson 503-849-4700 19146 Merchant Place Oregon City OR 97045 12/31/2024 3823 Anderson, Mark D.
4244 Gary Tillman 503-777-1866 Dennis Seven Dees Landscaping 6304 SE 89th Portland OR 97266 12/31/2023 4244 Tillman, Gary
427783 Myles C. Diehl 971-421-0737 American Backflow & Plumbing Services, Inc 5623 SE Center St Portland OR 97206 12/31/2024 427783 Diehl, Myles C.
433730 Patjun W. Martin 503-913-2220 Lovett Inc 6920 NE 42nd Ave Portland OR 97218 12/31/2023 433730 Martin, Patjun W.
442940 Jeremy Case 503-289-1745 American Backflow & Plumbing Services, Inc 5623 SE Center St Portland OR 97206 12/31/2024 442940 Case, Jeremy
4462 Jonathan Moscinski 503-277-0699 Western States 8920 SE Cora St Portland OR 97266 12/31/2023 4462 Moscinski, Jonathan
4535 Richard T. Bruton 503-618-1806 Bruton Backflow and Irrigation PO Box 1927 Fairview OR 97024 12/31/2024 4535 Bruton, Richard T.
4684 Rick Byer 503-285-1855 Basic Fire Protection Inc 8135 NE Martin Luther King Jr Blvd Portland OR 97211 12/31/2024 4684 Byer, Rick
4690 Jason I. Smith 503-285-1855 Basic Fire Protection Inc 8135 NE Martin Luther King Jr Blvd Portland OR 97211 12/31/2023 4690 Smith, Jason I.
509012 Felix J. Pagan 503-395-3996 Apollo Drain & Rooter 853 NE Harlow Rd Troutdale OR 97060 12/31/2023 509012 Pagan, Felix J.
5307 John M. Baker 503-977-1949 Troll Landscaping Maintenance & Irrigation 9908 SW 55th Ave Portland OR 97219 12/31/2024 5307 Baker, John M.
5313 Joshua D. Blacker 503-289-1745 AMERICAN BACKFLOW SERVICES 5623 SE Center St Portland OR 97206 12/31/2024 5313 Blacker, Joshua D.
5314 Kerry Tweit 541-786-5050 K T Landscaping, Inc 74 Hawthorne Dr La Grande OR 97850 12/31/2023 5314 Tweit, Kerry
5336 Jordan J. Scott 503-703-7821 Clearwater Backflow Testing Services PO Box 90953 Portland OR 97290 12/31/2023 5336 Scott, Jordan J.
5365 Tracey A. Miller 503-286-4431 Crouchley Plumbing Co 8717 N Lombard Portland OR 97203 12/31/2023 5365 Miller, Tracey A.
5525 Alfredo Cibrian-Sandoval 503-209-9748 232 SE 192nd Ave Portland OR 97233 12/31/2024 5525 Cibrian-Sandoval, Alfredo
5633 Benjamin J. Hogland 503-704-6438 18186 Wewer Ave Sandy OR 97055 12/31/2024 5633 Hogland, Benjamin J.
5696 Richard D. Bricker 971-570-4039 Aqua Tech 14655 NE Russell Ct Portland OR 97230 12/31/2024 5696 Bricker, Richard D.
5707 Jason B. Wallace 503-249-0771 United Fire 4611 NE Martin Luther King Jr Blvd Portland OR 97211 12/31/2023 5707 Wallace, Jason B.
5807 Robert K. Smith 503-927-1232 21611 SE Main St Gresham OR 97030 12/31/2023 5807 Smith, Robert K.
6035 Luke A. Labonte 360-619-2344 United Fire 4611 NE Martin Luther King Jr Blvd Portland OR 97211 12/31/2023 6035 Labonte, Luke A.
6440 Jerrold L. Lively 360-773-8749 Lively Backflow Testing 5533 NE Klickitat St Portland OR 97213 12/31/2023 6440 Lively, Jerrold L.
6477 Ian R. Churchill 503-810-5755 HEATH BACKFLOW INC PO Box 1565 Sherwood OR 97140 12/31/2024 6477 Churchill, Ian R.
6541 David C. Dillon 503-284-3557 Blessing Landscapes LLC 7219 NE 47th Ave Portland OR 97218 12/31/2024 6541 Dillon, David C.
6755 Ryan D. Everson 503-244-2146 Abel Irrigation & Lighting PO Box 80067 Portland OR 97280 12/31/2024 6755 Everson, Ryan D.
724485 Dimitry Voytenko 503-289-1745 American Backflow & Plumbing Services, Inc 5623 SE Center St Portland OR 97206 12/31/2023 724485 Voytenko, Dimitry
759253 Matthew J. Zinzer 503-406-8233 Portland Metro Backflow Testing, LLC 7085 SW Barr Ln Tualatin OR 97062 12/31/2023 759253 Zinzer, Matthew J.
851966 Sally A. McCurdy 503-567-7555 Terra Beaut, LLC dba Conserva Irrigation of NW Portland 2652 N Argyle St Portland OR 97217 12/31/2023 851966 McCurdy, Sally A.
937789 Kyle Owens 503-289-1745 AMERICAN BACKFLOW SERVICES 5623 SE Center St Portland OR 97206 12/31/2023 937789 Owens, Kyle
944997 James R. Esper 503-777-7777 Dennis Seven Dees Landscaping 7355 SE Johnson Creek Blvd Portland OR 97206 12/31/2024 944997 Esper, James R.
992408 Eric F. Bland 971-338-0424 Fire Tech West 2235 A St Hubbard OR 97032 12/31/2024 992408 Bland, Eric F.