1,300 community and non-transient non-community water systems are listed for Oregon in EPA SDWIS. 129 were sampled under UCMR 5; 18 of those had at least one PFAS result at or above the reporting level, and 11 had a highest single result at or above a 2024 EPA limit (PFOA or PFOS 4 ppt, or Hazard Index 1).
Oregon map · Download: systems (CSV) · all results (CSV, gzip)
These are monitoring results collected under EPA's Fifth Unregulated Contaminant Monitoring Rule (UCMR 5) at entry points, where treated water enters the distribution system; they are not tap-water samples. They are not compliance determinations: compliance with EPA's 2024 PFAS limits is judged on running annual averages of compliance monitoring, required from 2029, so a single UCMR 5 result at or above a limit is not a violation. “< MRL” means the compound was not quantified at EPA's minimum reporting level; it does not mean zero.
Sampled under UCMR 5 (129)
| System | PWSID | City | Population | Highest PFOA (ppt) | Highest PFOS (ppt) | Highest HI | Highest single result |
|---|---|---|---|---|---|---|---|
| Adair Village Water System | OR4100003 | Adair Village | 875 | <MRL | <MRL | 0 | No PFAS detected |
| Albany, City Of | OR4100012 | Albany | 57,997 | <MRL | <MRL | 0 | No PFAS detected |
| Ashland Water Department | OR4100047 | Ashland | 20,946 | <MRL | <MRL | 0 | No PFAS detected |
| Astoria, City Of | OR4100055 | Astoria | 10,181 | <MRL | <MRL | 0 | No PFAS detected |
| Aumsville, City Of | OR4100065 | Aumsville | 4,125 | <MRL | <MRL | 0 | No PFAS detected |
| Avion Wc - Greater Avion | OR4100091 | Bend | 35,332 | <MRL | <MRL | 0 | No PFAS detected |
| Baker City | OR4100073 | Baker City | 10,349 | <MRL | <MRL | 0 | No PFAS detected |
| Bandon, City Of | OR4100074 | Bandon | 3,000 | <MRL | <MRL | 0 | No PFAS detected |
| Beaverton, City Of | OR4100081 | Beaverton | 88,045 | <MRL | <MRL | 0 | No PFAS detected |
| Bend, City Of | OR4100100 | Bend | 77,704 | 7.9 | <MRL | 0 | PFOA 1–3 × its limit |
| Bethany Elementary School | OR4190586 | Silverton | 90 | <MRL | <MRL | 0 | No PFAS detected |
| Boardman, City Of | OR4100130 | Boardman | 5,749 | <MRL | <MRL | 0 | No PFAS detected |
| Brookings, City Of | OR4100149 | Brookings | 7,120 | <MRL | <MRL | 0 | No PFAS detected |
| Canby Utility | OR4100157 | Canby | 18,754 | <MRL | <MRL | 0 | No PFAS detected |
| Central Point, City Of | OR4100178 | Central Point | 19,785 | <MRL | <MRL | 0 | No PFAS detected |
| Chemical Waste Mgt Of Nw Inc | OR4194718 | Arlington | 40 | <MRL | <MRL | 0 | No PFAS detected |
| Chenowith Pud | OR4100867 | The Dalles | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| City Of Stayton | OR4100843 | Stayton | 8,400 | <MRL | <MRL | 0 | No PFAS detected |
| Clackamas River Water | OR4100187 | Clackamas | 29,918 | <MRL | <MRL | 0 | No PFAS detected |
| Clackamas River Water - Clairmont | OR4100594 | Clackamas | 19,928 | <MRL | <MRL | 0 | No PFAS detected |
| Coos Bay North Bend Wtr Brd | OR4100205 | Coos Bay | 34,500 | <MRL | <MRL | 0 | No PFAS detected |
| Coquille, City Of | OR4100213 | Coquille | 3,953 | <MRL | <MRL | 0 | No PFAS detected |
| Corbett Water District | OR4100359 | Corbett | 2,954 | <MRL | <MRL | 0 | No PFAS detected |
| Cornelius, City Of | OR4100218 | Cornelius | 14,490 | <MRL | <MRL | 0 | No PFAS detected |
| Corvallis, City Of | OR4100225 | Corvallis | 61,468 | <MRL | <MRL | 0 | No PFAS detected |
| Cottage Grove, City Of | OR4100236 | Cottage Grove | 10,879 | <MRL | <MRL | 0 | No PFAS detected |
| Creswell, City Of | OR4100246 | Creswell | 5,585 | <MRL | <MRL | 0 | No PFAS detected |
| Crooked River Ranch Wtr Co | OR4100862 | Terrebonne | 4,220 | <MRL | <MRL | 0 | No PFAS detected |
| Crystal Springs Water District | OR4100386 | Odell | 5,973 | <MRL | <MRL | 0 | No PFAS detected |
| Dallas, City Of | OR4100248 | Dallas | 17,911 | <MRL | <MRL | 0 | No PFAS detected |
| Deschutes Valley Water Dist | OR4100501 | Madras | 11,700 | <MRL | <MRL | 0 | No PFAS detected |
| Donald, City Of | OR4100259 | Donald | 1,107 | <MRL | <MRL | 0 | No PFAS detected |
| Dundee, City Of | OR4100262 | Dundee | 2,960 | <MRL | 5.4 | 0 | PFOS 1–3 × its limit |
| Eagle Point, City Of | OR4100267 | Eagle Point | 9,554 | <MRL | <MRL | 0 | No PFAS detected |
| Estacada, City Of | OR4100279 | Estacada | 5,750 | <MRL | <MRL | 0 | Other PFAS detected |
| Eugene Water & Electric Board | OR4100287 | Eugene | 176,000 | <MRL | <MRL | 0 | No PFAS detected |
| Fairview, City Of | OR4100296 | Fairview | 9,963 | <MRL | <MRL | 0 | No PFAS detected |
| Falls City, City Of | OR4100297 | Falls City | 1,051 | <MRL | <MRL | 0 | No PFAS detected |
| Florence, City Of | OR4100299 | Florence | 9,561 | <MRL | <MRL | 0 | No PFAS detected |
| Forest Grove, City Of | OR4100305 | Forest Grove | 26,838 | <MRL | <MRL | 0 | No PFAS detected |
| Gladstone, City Of | OR4100321 | Gladstone | 12,121 | <MRL | <MRL | 0 | No PFAS detected |
| Grants Pass, City Of | OR4100342 | Grants Pass | 37,138 | <MRL | <MRL | 0 | No PFAS detected |
| Green Area Water & Sanitary Authority | OR4100717 | Roseburg | 7,000 | <MRL | <MRL | 0 | No PFAS detected |
| Gresham, City Of | OR4100357 | Gresham | 73,932 | <MRL | <MRL | 0 | No PFAS detected |
| Harrisburg, City Of | OR4100366 | Harrisburg | 3,684 | <MRL | <MRL | 0 | No PFAS detected |
| Heceta Water Peoples Utility District | OR4100301 | Florence | 4,921 | <MRL | <MRL | 0 | No PFAS detected |
| Hermiston, City Of | OR4100372 | Hermiston | 20,000 | <MRL | 12 | 1.202 | PFOS ≥ 3 × its limit |
| Hillsboro, City Of | OR4101513 | Hillsboro | 92,632 | <MRL | <MRL | 0 | No PFAS detected |
| Hood River, City Of | OR4100385 | Hood River | 8,577 | <MRL | <MRL | 0 | No PFAS detected |
| Hubbard, City Of | OR4100389 | Hubbard | 3,478 | <MRL | <MRL | 0 | No PFAS detected |
| Ice Fountain Water District | OR4100387 | Hood River | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Independence Water System | OR4100399 | Independence | 10,300 | <MRL | <MRL | 0.002 | Hazard Index below its limit |
| Keizer, City Of | OR4100744 | Keizer | 38,585 | <MRL | <MRL | 0.39 | Hazard Index below its limit |
| Kernville-Gleneden-Linc Bch Wd | OR4100324 | Gleneden Beach | 5,609 | <MRL | <MRL | 0 | No PFAS detected |
| Klamath Falls Water Dept | OR4100443 | Klamath Falls | 40,475 | <MRL | 9.5 | 0.582 | PFOS 1–3 × its limit |
| La Grande, City Of | OR4100453 | La Grande | 13,460 | <MRL | <MRL | 0 | No PFAS detected |
| Lafayette, City Of | OR4100452 | Lafayette | 4,423 | <MRL | <MRL | 0 | No PFAS detected |
| Lake Oswego Municipal Water | OR4100457 | Lake Oswego | 40,000 | <MRL | <MRL | 0 | No PFAS detected |
| Lakeview, Town Of | OR4100464 | Lakeview | 2,476 | <MRL | <MRL | 0 | No PFAS detected |
| Lebanon, City Of | OR4100473 | Lebanon | 18,945 | <MRL | <MRL | 0 | No PFAS detected |
| Lincoln City, City Of | OR4100483 | Lincoln City | 20,830 | <MRL | <MRL | 0 | No PFAS detected |
| Madras, City Of | OR4100500 | Madras | 3,940 | <MRL | <MRL | 0 | No PFAS detected |
| Marcola Water District | OR4100508 | Springfield | 600 | <MRL | 6.8 | 0.74 | PFOS 1–3 × its limit |
| Mcminnville Water & Light | OR4100497 | Mcminnville | 34,515 | <MRL | <MRL | 0 | No PFAS detected |
| Medford Water Commission | OR4100513 | Medford | 106,068 | <MRL | <MRL | 0 | No PFAS detected |
| Milton-Freewater, City Of | OR4100522 | Milton-Freewater | 7,145 | <MRL | 7.2 | 0.32 | PFOS 1–3 × its limit |
| Milwaukie, City Of | OR4100528 | Milwaukie | 20,946 | <MRL | 7 | 0 | PFOS 1–3 × its limit |
| Molalla, City Of | OR4100534 | Molalla | 10,298 | <MRL | <MRL | 0 | Other PFAS detected |
| Monmouth, City Of | OR4100537 | Monmouth | 11,651 | <MRL | <MRL | 0 | No PFAS detected |
| Mount Angel, City Of | OR4100544 | Mt. Angel | 3,650 | <MRL | <MRL | 0 | No PFAS detected |
| Myrtle Creek, City Of | OR4100550 | Myrtle Creek | 3,501 | <MRL | <MRL | 0 | No PFAS detected |
| Newberg, City Of | OR4100557 | Newberg | 25,138 | <MRL | <MRL | 0 | No PFAS detected |
| Newport, City Of | OR4100566 | Newport | 10,439 | <MRL | <MRL | 0 | No PFAS detected |
| Oak Lodge Water Services | OR4101512 | Milwaukie | 30,000 | <MRL | <MRL | 0 | No PFAS detected |
| Ontario, City Of | OR4100587 | Ontario | 14,465 | <MRL | <MRL | 0 | No PFAS detected |
| Oregon City | OR4101511 | Oregon City | 33,940 | <MRL | <MRL | 0 | No PFAS detected |
| Oregon Institute Of Technology | OR4193997 | Klamath Falls | 3,250 | <MRL | <MRL | 0 | No PFAS detected |
| Pendleton, City Of | OR4100613 | Pendleton | 16,996 | <MRL | <MRL | 0.48 | Hazard Index below its limit |
| Philomath Public Works | OR4100624 | Philomath | 4,670 | <MRL | <MRL | 0 | No PFAS detected |
| Phoenix, City Of | OR4100625 | Phoenix | 5,900 | <MRL | <MRL | 0 | No PFAS detected |
| Pleasant View Water Co | OR4101322 | Yamhill | 120 | <MRL | <MRL | 0 | No PFAS detected |
| Portland Water Bureau | OR4100657 | Portland | 666,200 | <MRL | <MRL | 0 | No PFAS detected |
| Prineville, City Of | OR4100682 | Prineville | 11,000 | <MRL | <MRL | 0 | No PFAS detected |
| Rainbow Water District | OR4100839 | Springfield | 6,300 | 4.2 | 9.4 | 0.002 | PFOS 1–3 × its limit |
| Raleigh Water District | OR4100667 | Portland | 4,500 | <MRL | <MRL | 0 | No PFAS detected |
| Redmond Water Department | OR4100693 | Redmond | 38,208 | <MRL | <MRL | 0 | No PFAS detected |
| Reedsport, City Of | OR4100699 | Reedsport | 4,836 | <MRL | <MRL | 0 | No PFAS detected |
| Rivergrove Water District | OR4100461 | Lake Oswego | 4,000 | <MRL | <MRL | 0 | No PFAS detected |
| Roats Water System | OR4100113 | Bend | 6,469 | <MRL | <MRL | 0 | No PFAS detected |
| Roats Woodside Ranch Ws | OR4100115 | Bend | 685 | <MRL | <MRL | 0 | No PFAS detected |
| Rockwood Pud | OR4100668 | Portland | 65,443 | <MRL | <MRL | 0 | No PFAS detected |
| Roseburg, City Of | OR4100720 | Roseburg | 28,800 | <MRL | <MRL | 0 | No PFAS detected |
| Ruch Elementary Sd 549 | OR4191508 | Medford | 200 | 9.3 | 10.6 | 3.347 | Hazard Index ≥ 3 × its limit |
| Salem Public Works | OR4100731 | Salem | 199,820 | <MRL | <MRL | 0 | No PFAS detected |
| Sandy, City Of | OR4100789 | Sandy | 12,991 | <MRL | <MRL | 0 | No PFAS detected |
| Scappoose, City Of | OR4100792 | Scappoose | 8,710 | <MRL | <MRL | 0 | No PFAS detected |
| Seal Rock Water District | OR4100798 | Seal Rock | 6,000 | <MRL | <MRL | 0 | No PFAS detected |
| Seaside Water Department | OR4100799 | Seaside | 7,482 | <MRL | <MRL | 0 | No PFAS detected |
| Sheridan, City Of | OR4100811 | Sheridan | 6,494 | <MRL | <MRL | 0 | No PFAS detected |
| Sherwood, City Of | OR4100816 | Sherwood | 20,781 | <MRL | <MRL | 0 | Other PFAS detected |
| Silverton, City Of | OR4100823 | Silverton | 10,484 | <MRL | <MRL | 0 | No PFAS detected |
| Spirit Mountain Casino | 104121115 | Grand Ronde | 7,420 | <MRL | <MRL | 0 | No PFAS detected |
| Springfield Utility Board | OR4100837 | Springfield | 62,100 | 4.1 | <MRL | 0 | PFOA 1–3 × its limit |
| St Helens, City Of | OR4100724 | St Helens | 13,410 | <MRL | <MRL | 0.008 | Hazard Index below its limit |
| Suburban East Salem Wd | OR4100768 | Salem | 13,900 | <MRL | <MRL | 0 | No PFAS detected |
| Sunrise Water Authority | OR4100635 | Happy Valley | 50,003 | <MRL | 4.3 | 0 | PFOS 1–3 × its limit |
| Sunriver Water Llc/Sunriver Utilities | OR4100846 | Sunriver | 4,300 | <MRL | <MRL | 0 | No PFAS detected |
| Sutherlin, City Of | OR4100847 | Sutherlin | 8,060 | <MRL | <MRL | 0 | No PFAS detected |
| Sweet Home, City Of | OR4100851 | Sweet Home | 10,322 | <MRL | <MRL | 0 | No PFAS detected |
| Talent, City Of | OR4100857 | Talent | 6,293 | <MRL | <MRL | 0 | No PFAS detected |
| The Dalles, City Of | OR4100869 | The Dalles | 13,010 | <MRL | <MRL | 0 | No PFAS detected |
| Tigard, City Of | OR4100878 | Tigard | 62,500 | <MRL | <MRL | 0 | No PFAS detected |
| Tillamook Water Dept, City Of | OR4100893 | Tillamook | 5,265 | <MRL | <MRL | 0 | No PFAS detected |
| Toledo Water Utilities | OR4100899 | Toledo | 3,645 | <MRL | <MRL | 0 | No PFAS detected |
| Tri-City Jw&Sa | OR4100549 | Myrtle Creek | 3,500 | <MRL | <MRL | 0 | No PFAS detected |
| Troutdale, City Of | OR4100901 | Troutdale | 16,185 | <MRL | <MRL | 0 | No PFAS detected |
| Tualatin Valley Water District | OR4100665 | Beaverton | 224,600 | <MRL | <MRL | 0 | No PFAS detected |
| Tualatin, City Of | OR4100906 | Tualatin | 28,106 | <MRL | <MRL | 0 | No PFAS detected |
| Umatilla, City Of | OR4100914 | Umatilla | 8,256 | <MRL | <MRL | 0 | No PFAS detected |
| Umpqua Basin Water Assoc | OR4100719 | Roseburg | 9,499 | <MRL | <MRL | 0 | No PFAS detected |
| Veneta, City Of | OR4100920 | Veneta | 5,200 | <MRL | <MRL | 0 | No PFAS detected |
| Warm Springs Water Treatment Plant | 104101247 | Warm Springs | 3,800 | <MRL | <MRL | 0 | No PFAS detected |
| Warrenton, City Of | OR4100932 | Warrenton | 9,100 | <MRL | <MRL | 0 | No PFAS detected |
| West Linn, City Of | OR4100944 | West Linn | 28,000 | <MRL | <MRL | 0 | No PFAS detected |
| West Slope Water District | OR4100660 | Portland | 11,000 | <MRL | <MRL | 0 | No PFAS detected |
| Wilsonville, City Of | OR4100954 | Wilsonville | 25,915 | <MRL | <MRL | 0 | No PFAS detected |
| Winston-Dillard Water District | OR4100957 | Winston | 8,300 | <MRL | <MRL | 0 | No PFAS detected |
| Wood Village, City Of | OR4100904 | Wood Village | 4,388 | <MRL | <MRL | 0 | No PFAS detected |
| Woodburn, City Of | OR4100959 | Woodburn | 29,455 | <MRL | <MRL | 0 | No PFAS detected |
Not tested under UCMR 5 (1,171)
UCMR 5 required monitoring by systems serving 3,300 or more people and by a representative sample of smaller systems. The systems below have no UCMR 5 results in EPA's data. Not tested is not the same as not detected: the absence of results says nothing about PFAS in their water.
| System | PWSID | Type | City | Population | Counties |
|---|---|---|---|---|---|
| 62Nd Court Mutual Water Co | OR4101184 | CWS | Salem | 50 | Marion County |
| A River Runs Through | OR4195342 | CWS | Medford | 30 | Jackson County |
| Abiqua School | OR4193768 | NTNCWS | Salem | 200 | Marion County |
| Adams Water Dept, City Of | OR4100001 | CWS | Adams | 400 | Umatilla County |
| Adrian, City Of | OR4100002 | CWS | Adrian | 159 | Malheur County |
| Agate Water System | OR4101439 | CWS | Bend | 3,153 | Deschutes County |
| Al Kennedy Alternative 45J3 | OR4191799 | NTNCWS | Cottage Grove | 100 | Lane County |
| Albany Box Company | OR4194871 | NTNCWS | Tangent | 30 | Linn County |
| Albany Trailer And Rv Park, Llc | OR4100004 | CWS | Albany | 130 | Linn County |
| Alder Creek Barlow Water Dist | OR4100630 | CWS | Sandy | 300 | Clackamas County |
| Alderwood Water Dev Co | OR4100304 | CWS | Eugene | 34 | Lane County |
| Aldridge Ditch Co Ws | OR4101013 | CWS | Hood River | 88 | Hood River County |
| Alpine Crest Improvement Dist | OR4101352 | CWS | Salem | 91 | Marion County |
| Alsea County Service District | OR4100978 | CWS | Corvallis | 202 | Benton County |
| Amazon Data Hermiston Pdx080 | OR4195565 | NTNCWS | Kennewick | 250 | Umatilla County |
| Amazon Data Umatilla Pdx063 | OR4195591 | NTNCWS | Kennewick | 250 | Umatilla County |
| Amigo Villa Water Service Inc | OR4100013 | CWS | Albany | 100 | Linn County |
| Amity, City Of | OR4100041 | CWS | Amity | 1,810 | Yamhill County |
| Anglers Cove/Schwc | OR4101483 | CWS | Shady Cove | 85 | Jackson County |
| Annex Charter School | OR4190889 | NTNCWS | Ontario | 50 | Malheur County |
| Antelope, City Of | OR4100042 | CWS | Antelope | 55 | Wasco County |
| Applegate Elementary 66 | OR4190894 | NTNCWS | Eugene | 120 | Lane County |
| Applegate Mobile Park (Lower & Upper) | OR4100043 | CWS | Applegate | 63 | Jackson County |
| Applegate School | OR4190544 | NTNCWS | Grants Pass | 90 | Jackson County |
| Applegate Trail Rv Park | OR4192123 | CWS | Grants Pass | 32 | Douglas County |
| Applewood Mobile Home Park | OR4100840 | CWS | Eugene | 125 | Lane County |
| Arbor School | OR4194894 | NTNCWS | Tualatin | 215 | Clackamas County |
| Arbor School - West | OR4195621 | NTNCWS | Tualatin | 180 | Clackamas County |
| Arch Cape Water District | OR4100802 | CWS | Arch Cape | 200 | Clatsop County |
| Area 61 | OR4194571 | NTNCWS | Merlin | 260 | Josephine County |
| Arlington City Water Supply | OR4100046 | CWS | Arlington | 628 | Gilliam County |
| Arneys Forest View Mhp | OR4100992 | CWS | Terrebonne | 50 | Lane County |
| Arrowhead Mobile Home Park | OR4100770 | CWS | Newberg | 220 | Marion County |
| Arrowood Community Water Co | OR4101525 | CWS | Bend | 170 | Deschutes County |
| Ascend Elite Cheer | OR4195284 | NTNCWS | Central Point | 100 | Jackson County |
| Ash Grove Cement Durkee Plant | OR4190004 | NTNCWS | Durkee | 114 | Baker County |
| Ash Grove Cement West-Rvrgate | OR4194453 | NTNCWS | Portland | 32 | Multnomah County |
| Ashdown Wood Water Company | OR4101153 | CWS | Lake Oswego | 75 | Clackamas County |
| Ashland Acres Mobile Estates | OR4100049 | CWS | Prospect | 30 | Jackson County |
| Ashland Country Estates | OR4100053 | CWS | Ashland | 85 | Jackson County |
| Ashland Valley Inn | OR4194256 | CWS | Ashland | 59 | Jackson County |
| Ashland Ymca | OR4195466 | NTNCWS | Ashland | 200 | Jackson County |
| Aspen Lakes Utility Co Llc | OR4101476 | CWS | Sisters | 150 | Deschutes County |
| Athena, City Of | OR4100064 | CWS | Athena | 1,238 | Umatilla County |
| Aurora Acres Rv Resort | OR4193784 | CWS | Sacramento | 450 | Marion County |
| Aurora, City Of | OR4100067 | CWS | Aurora | 1,133 | Marion County |
| Avion Wc - Brasada Ranch | OR4101506 | CWS | Bend | 1,200 | Crook County |
| Avion Wc - Chaparral | OR4100094 | CWS | Bend | 470 | Deschutes County |
| Avion Wc - Cinder Butte Ests | OR4100122 | CWS | Bend | 120 | Deschutes County |
| Avion Wc - Desert Springs | OR4101259 | CWS | Bend | 130 | Deschutes County |
| Avion Wc - Drid | OR4101366 | CWS | Bend | 60 | Deschutes County |
| Avion Wc - Highland Estates | OR4101346 | CWS | Bend | 75 | Deschutes County |
| Avion Wc - Klippel | OR4100105 | CWS | Bend | 80 | Deschutes County |
| Avion Wc - Odin Falls Ranch | OR4101382 | CWS | Bend | 120 | Deschutes County |
| Avion Wc - Red Cloud | OR4101203 | CWS | Bend | 585 | Crook County |
| Avion Wc - South Redmond Heights | OR4101230 | CWS | Bend | 190 | Deschutes County |
| Avion Wc - Sun Country Wtr Saddleback | OR4100123 | CWS | Bend | 300 | Deschutes County |
| Avion Wc - Tetherow Crossing | OR4101160 | CWS | Bend | 180 | Deschutes County |
| Avion Wc - Tumalo Rim | OR4101351 | CWS | Bend | 225 | Deschutes County |
| Avion Wc - Turner | OR4105069 | CWS | Bend | 35 | Deschutes County |
| Avion Wc - Tuscarora | OR4101155 | CWS | Bend | 120 | Deschutes County |
| Avion Wc - Whychus Creek | OR4101305 | CWS | Bend | 428 | Deschutes County |
| Avion Wc - Wild River | OR4100975 | CWS | Bend | 276 | Deschutes County |
| Bailey Nursery Ii | OR4194885 | NTNCWS | Dayton | 45 | Yamhill County |
| Bailey Nursery Iii | OR4194993 | NTNCWS | Dayton | 160 | Yamhill County |
| Bailey Nursery Reeder Rd Main | OR4195481 | NTNCWS | Dayton | 54 | Multnomah County |
| Bandon Coastal Dunes | OR4195063 | CWS | Bandon | 225 | Coos County |
| Banks Water Department | OR4100076 | CWS | Banks | 2,070 | Washington County |
| Barenbrug Water System | OR4195566 | NTNCWS | Tangent | 100 | Linn County |
| Barlow Trail Estates | OR4100140 | CWS | Boring | 180 | Clackamas County |
| Barlow Water District | OR4100909 | CWS | Wamic | 900 | Wasco County |
| Barlow, City Of | OR4100078 | CWS | Canby | 135 | Clackamas County |
| Barnes Butte Hoa | OR4101169 | CWS | Prineville | 148 | Crook County |
| Bay Aire Mobile Home Park | OR4190921 | CWS | Tillamook | 82 | Tillamook County |
| Bay City Water System | OR4100079 | CWS | Bay City | 1,400 | Tillamook County |
| Bay Hills Water Association | OR4100564 | CWS | Newport | 45 | Lincoln County |
| Bear Creek Mobile Home Park | OR4100050 | CWS | Central Point | 95 | Jackson County |
| Beaver Water District | OR4100199 | CWS | Cloverdale | 600 | Tillamook County |
| Becklin Holdings Inc | OR4194765 | NTNCWS | Grants Pass | 205 | Josephine County |
| Beef Northwest Feeders - Boardman | OR4195756 | NTNCWS | Boardman | 68 | Morrow County |
| Bella Casa Park | OR4101005 | CWS | Eugene | 125 | Lane County |
| Belle Passi Estates | OR4101221 | CWS | Woodburn | 30 | Marion County |
| Bend Airport | OR4194978 | NTNCWS | Bend | 160 | Deschutes County |
| Bents Court Water Company | OR4195376 | NTNCWS | Newberg | 2,500 | Marion County |
| Bentwood Estates Water System | OR4101373 | CWS | Redmond | 80 | Deschutes County |
| Berndt Creek Water Corp | OR4105737 | CWS | Vernonia | 45 | Columbia County |
| Bethel Elementary Sd 24J | OR4193761 | NTNCWS | Salem | 130 | Marion County |
| Bethel Park | OR4100151 | CWS | Molalla | 125 | Marion County |
| Beverly Beach Water District | OR4100568 | CWS | Newberg | 152 | Lincoln County |
| Bia Celilo Village | 104101133 | CWS | Warm Springs | 75 | |
| Bie Chemawa Indian School | 104101132 | CWS | Washington | 320 | |
| Big Foot Mhp | OR4101461 | CWS | Mulino | 60 | Clackamas County |
| Big Oak Marina | OR4106054 | CWS | Portland | 30 | Multnomah County |
| Big Spruce Mhp Llc | OR4100295 | CWS | Eugene | 80 | Lane County |
| Big Valley Woods Water Corp | OR4101068 | CWS | Boring | 550 | Clackamas County |
| Bigfoot Acres | OR4101154 | CWS | New Plymouth | 60 | Jackson County |
| Biggs Service District | OR4195655 | NTNCWS | Moro | 1,600 | Sherman County |
| Black Butte Elementary Sd 41 | OR4105019 | NTNCWS | Camp Sherman | 30 | Jefferson County |
| Black Butte Ranch Corporation | OR4100086 | CWS | Sisters | 740 | Deschutes County |
| Black Mountain Water District | OR4100370 | CWS | Hermiston | 43 | Morrow County |
| Blm Burns District Office | OR4195040 | NTNCWS | Springfield | 70 | Harney County |
| Blodgett Elementary Sd 17J | OR4193702 | NTNCWS | Philomath | 35 | Benton County |
| Blue Moon Mobile Home Park | OR4101020 | CWS | Grants Pass | 70 | Josephine County |
| Blue River Water District | OR4100125 | CWS | Blue River | 150 | Lane County |
| Blue Spruce Mobile Estates | OR4100515 | CWS | Grants Pass | 55 | Jackson County |
| Bly Water District | OR4100129 | CWS | Bly | 310 | Klamath County |
| Boise Cascade-Willamina Veneer | OR4194219 | NTNCWS | Willamina | 75 | Yamhill County |
| Bonanza High/Elem Schools | OR4190550 | NTNCWS | Klamath Falls | 425 | Klamath County |
| Boring Water District No 24 | OR4100135 | CWS | Boring | 2,500 | Clackamas County |
| Bpa-Celilo/Big Eddy | OR4194418 | NTNCWS | The Dalles | 61 | Wasco County |
| Breitenbush Hot Springs | OR4193461 | CWS | Detroit | 150 | Marion County |
| Brewster Community Homeowners | OR4100762 | CWS | Salem | 70 | Marion County |
| Bridge Water District | OR4100552 | CWS | Myrtle Point | 150 | Coos County |
| Brightwood Water Works | OR4100143 | CWS | Brightwood | 100 | Clackamas County |
| Brooks Csd | OR4194699 | NTNCWS | Salem | 450 | Marion County |
| Brownsville, City Of | OR4100152 | CWS | Brownsville | 1,906 | Linn County |
| Buell-Red Prairie Wd | OR4101174 | CWS | Sheridan | 800 | Polk County |
| Bunns Village Industrial Park | OR4194294 | NTNCWS | Amity | 35 | Yamhill County |
| Burlington Water District | OR4100644 | CWS | Newberg | 340 | Multnomah County |
| Burns Paiute | 104101100 | CWS | Burns | 155 | Harney County |
| Burns Water Department | OR4100153 | CWS | Burns | 2,730 | Harney County |
| Burnside Water Association | OR4100054 | CWS | Astoria | 350 | Clatsop County |
| Butler Ford And Acura | OR4194693 | NTNCWS | Ashland | 120 | Jackson County |
| Butte Creek Elementary Sd 67J | OR4190581 | NTNCWS | Silverton | 326 | Clackamas County |
| Butte Falls, Town Of | OR4100154 | CWS | Butte Falls | 443 | Jackson County |
| Calvary Corvallis | OR4195350 | NTNCWS | Corvallis | 173 | Benton County |
| Camas Valley School | OR4190541 | NTNCWS | Camas Valley | 210 | Douglas County |
| Camelot Mobile Home Park | OR4100027 | CWS | Albany | 150 | Linn County |
| Camp Bradley | OR4194556 | CWS | Bandon | 70 | Coos County |
| Camp Creek Elem Bridgeway School | OR4191787 | NTNCWS | Cottage Grove | 84 | Lane County |
| Camp Rilea | OR4195443 | NTNCWS | Salem | 136 | Clatsop County |
| Canby Regency | OR4100163 | CWS | Canby | 265 | Clackamas County |
| Cannon Beach, City Of | OR4100164 | CWS | Cannon Beach | 1,710 | Clatsop County |
| Canyon City Water Department | OR4100165 | CWS | Canyon City | 666 | Grant County |
| Canyon Ridge | OR4101539 | CWS | Bend | 153 | Deschutes County |
| Canyonville, City Of | OR4100169 | CWS | Canyonville | 1,662 | Douglas County |
| Carlton, City Of | OR4100171 | CWS | Carlton | 2,270 | Yamhill County |
| Carmel Beach Water District | OR4100565 | CWS | Newport | 39 | Lincoln County |
| Carolina Water System | OR4100733 | CWS | Salem | 300 | Marion County |
| Carus Elementary | OR4193970 | NTNCWS | Canby | 415 | Clackamas County |
| Carver Mobile Ranch | OR4100189 | CWS | Lake Oswego | 110 | Clackamas County |
| Cascade Gorge Properties | OR4191556 | CWS | Cave Junction | 33 | Jackson County |
| Cascade Locks, City Of | OR4100172 | CWS | Cascade Locks | 1,398 | Hood River County |
| Cascade Pacific Pulp Llc | OR4192152 | NTNCWS | Halsey | 300 | Linn County |
| Cascade Union Jr/Sr High Sd 5 | OR4194593 | NTNCWS | Turner | 1,300 | Marion County |
| Cascade View Estates | OR4101456 | CWS | Corvallis | 113 | Benton County |
| Cascades Academy Of Central Oregon | OR4195476 | NTNCWS | Bend | 260 | Deschutes County |
| Cascades Elementary | OR4191660 | NTNCWS | Lebanon | 388 | Linn County |
| Cascadia Mobile Park | OR4100477 | CWS | Waldport | 60 | Linn County |
| Caseys Riverside Park | OR4101007 | CWS | Westfir | 90 | Lane County |
| Cave Junction, City Of | OR4100971 | CWS | Cave Junction | 2,160 | Josephine County |
| Caveman Mobile Home Park | OR4101260 | CWS | Grants Pass | 45 | Josephine County |
| Ccc Santiam Center | OR4194948 | NTNCWS | Salem | 150 | Marion County |
| Cedar Tree Mobile Home Park | OR4101043 | CWS | Scappoose | 50 | Columbia County |
| Cedarhurst Improvement Club | OR4100280 | CWS | Estacada | 60 | Clackamas County |
| Central Howell Elementary | OR4190589 | NTNCWS | Silverton | 165 | Marion County |
| Central Valley Christian School | OR4193968 | NTNCWS | Tangent | 64 | Linn County |
| Century Farm Court | OR4101326 | CWS | Brownsville | 42 | Marion County |
| Century Meadows Inc | OR4100066 | CWS | Aurora | 480 | Marion County |
| Chaparral Mobile Ranch | OR4100772 | CWS | Keizer | 110 | Marion County |
| Charles Tracts Water Company | OR4100371 | CWS | Hermiston | 290 | Umatilla County |
| Chart Subdivision | OR4101415 | CWS | Hermiston | 125 | Umatilla County |
| Chateau Mobile Home Park | OR4101200 | CWS | Woodburn | 136 | Marion County |
| Chehalem Mtn Sun Ridge Water Co | OR4100562 | CWS | Newberg | 70 | Yamhill County |
| Chehalem Terrace Water Company | OR4105426 | CWS | Newberg | 30 | Yamhill County |
| Chehalem Valley Water Assn | OR4100558 | CWS | Newberg | 75 | Yamhill County |
| Chemeketa Cellars | OR4195179 | NTNCWS | Salem | 25 | Polk County |
| Childrens Day Education Center | OR4190523 | NTNCWS | Salem | 48 | Marion County |
| Childrens Farm Home Campus | OR4100226 | NTNCWS | Corvallis | 200 | Benton County |
| Chiloquin Municipal Water Dept | OR4100184 | CWS | Chiloquin | 730 | Klamath County |
| Christmas Valley Domestic Ws | OR4100186 | CWS | Christmas Valley | 950 | Lake County |
| Church Of The Resurrection | OR4195124 | NTNCWS | Tualatin | 130 | Clackamas County |
| Church On The Hill | OR4194911 | NTNCWS | Turner | 375 | Marion County |
| Cimmarron City Water System | OR4100112 | CWS | Bend | 450 | Deschutes County |
| Cinder Butte Village | OR4101553 | CWS | Bend | 126 | Deschutes County |
| Circle C Improvement District | OR4100861 | CWS | Terrebonne | 150 | Deschutes County |
| Circle Tree Mobile Park/Ranch | OR4101021 | CWS | Grants Pass | 57 | Josephine County |
| City Of Millersburg | OR4101533 | CWS | Albany | 2,615 | Linn County |
| City Of Rainier | OR4100689 | CWS | Rainier | 1,932 | Columbia County |
| Clackamas River Rv Park | OR4194761 | CWS | Estacada | 100 | Clackamas County |
| Clarks Branch Water Assoc | OR4100548 | CWS | Myrtle Creek | 140 | Douglas County |
| Clatskanie, City Of | OR4100194 | CWS | Clatskanie | 2,096 | Columbia County |
| Clayton Creek Mh Estates | OR4100048 | CWS | Ashland | 165 | Jackson County |
| Cline Falls Mobile Home Park | OR4101126 | CWS | Redmond | 85 | Deschutes County |
| Cline Falls Oasis Imprv Dist | OR4100694 | CWS | Redmond | 80 | Deschutes County |
| Clover Ridge Elementary | OR4191663 | NTNCWS | Albany | 305 | Linn County |
| Clovercrest Community Water System | OR4101254 | CWS | Merlin | 65 | Josephine County |
| Cloverdale Elementary | OR4193752 | NTNCWS | Turner | 140 | Marion County |
| Cloverdale Water District | OR4100886 | CWS | Cloverdale | 310 | Tillamook County |
| Cobblestone Mhp | OR4100517 | CWS | Medford | 100 | Jackson County |
| Coburg, City Of | OR4100200 | CWS | Coburg | 1,195 | Lane County |
| Coe Lost Creek Lake | OR4193685 | NTNCWS | Eugene | 40 | Jackson County |
| Cold Springs Water Co | OR4105201 | NTNCWS | Gaston | 100 | Washington County |
| College Mobile Home Park | OR4100972 | CWS | Grants Pass | 34 | Josephine County |
| Collier Lane Hoa | OR4101522 | CWS | Klamath Falls | 60 | Klamath County |
| Colorado Lake Coop | OR4100232 | CWS | Corvallis | 80 | Linn County |
| Colton Water District | OR4100202 | CWS | Colton | 1,500 | Clackamas County |
| Columbia Acres Water Assoc | OR4101148 | CWS | Scappoose | 110 | Columbia County |
| Columbia Airgas | OR4195664 | NTNCWS | Portland | 55 | Multnomah County |
| Columbia Basin Onion | OR4195757 | NTNCWS | Hermiston | 97 | Umatilla County |
| Columbia City Mun Waterworks | OR4100203 | CWS | Columbia City | 1,995 | Columbia County |
| Columbia Helicopters | OR4195630 | NTNCWS | Aurora | 325 | Marion County |
| Columbia Hills Hoa | OR4106118 | CWS | Scappoose | 84 | Columbia County |
| Columbia Plywood Corp | OR4194403 | NTNCWS | Klamath Falls | 280 | Klamath County |
| Columbia Ridge Landfill/Recycl | OR4194713 | NTNCWS | Arlington | 80 | Gilliam County |
| Columbia River Dairy | OR4195174 | NTNCWS | Boardman | 125 | Morrow County |
| Columbia River Dairy-North | OR4195778 | NTNCWS | Boardman | 50 | Morrow County |
| Columbia River Nitrogen, Llc | OR4193427 | NTNCWS | Deer Island | 65 | Columbia County |
| Columbia River Pud | OR4194717 | NTNCWS | St Helens | 45 | Columbia County |
| Combined Transport Logistics | OR4195552 | NTNCWS | Central Point | 50 | Jackson County |
| Community Action Headstart | OR4193751 | NTNCWS | Salem | 70 | Marion County |
| Condon Heights Ws | OR4106024 | CWS | Condon | 33 | Gilliam County |
| Condon, City Of | OR4100204 | CWS | Condon | 742 | Gilliam County |
| Consumers Power Inc | OR4194090 | NTNCWS | Philomath | 60 | Benton County |
| Corvallis Waldorf Association | OR4193711 | NTNCWS | Corvallis | 200 | Benton County |
| Country Christian School | OR4195098 | NTNCWS | Molalla | 400 | Clackamas County |
| Country Club Estates Wd | OR4101501 | CWS | Coos Bay | 45 | Coos County |
| Country Club Water District | OR4100628 | CWS | Brightwood | 150 | Clackamas County |
| Country Estates Mobile Park | OR4100340 | CWS | Grants Pass | 175 | Josephine County |
| Country Garden Estates Mhp | OR4101182 | CWS | Walterville | 175 | Morrow County |
| Country Squire Estates | OR4101045 | CWS | Beaverton | 150 | Umatilla County |
| Country View Estates Ws | OR4101403 | CWS | Coburg | 104 | Lane County |
| Country View Mh Estates | OR4100808 | CWS | Ashland | 132 | Jackson County |
| Country View Mhp | OR4101022 | CWS | Grants Pass | 80 | Josephine County |
| Country Villa Mobile Estates | OR4100793 | CWS | Tigard | 90 | Columbia County |
| Country Village Mobile Estates | OR4100341 | CWS | Grants Pass | 80 | Josephine County |
| Courtney Senior Estates | OR4101177 | CWS | Tualatin | 80 | Clackamas County |
| Cove Orchard Water Association | OR4101289 | CWS | Yamhill | 300 | Yamhill County |
| Cove Partnership | OR4194026 | CWS | Klamath Falls | 40 | Klamath County |
| Cove, City Of | OR4101243 | CWS | Cove | 550 | Union County |
| Covered Bridge Mhp | OR4190661 | CWS | Rogue River | 36 | Jackson County |
| Crane Union High/Elem Sd 1J | OR4190548 | NTNCWS | Crane | 340 | Harney County |
| Crater Lake Charter Academy | OR4195398 | NTNCWS | Eagle Point | 300 | Jackson County |
| Crawfordsville Elem Sd 55 | OR4191667 | NTNCWS | Sweet Home | 30 | Linn County |
| Creekside Development | 104121120 | NTNCWS | Canyonville | 3,159 | |
| Crescent Wtr Supply & Impr Dist | OR4100244 | CWS | Crescent | 900 | Klamath County |
| Crossroads Mobile Home Park | OR4100446 | CWS | Klamath Falls | 150 | Klamath County |
| Crow High School Sd 66 | OR4191897 | NTNCWS | Eugene | 144 | Lane County |
| Crown Mobile Home Park | OR4101009 | CWS | St Helens | 42 | Washington County |
| Cswa Chehalem Springs | OR4101518 | CWS | Newberg | 130 | Yamhill County |
| Cswa Oliver Spring | OR4101519 | CWS | Newberg | 40 | Yamhill County |
| Ctuir Pwd Mission | 104111101 | CWS | Pendleton | 1,310 | Umatilla County |
| Currinsville Mobile Home Park | OR4100266 | CWS | Sandy | 90 | Clackamas County |
| Cypress Grove Rv Park | OR4194910 | CWS | Gold Hill | 72 | Jackson County |
| D Stake Mill | OR4194528 | NTNCWS | Mcminnville | 54 | Yamhill County |
| Dark Hollow Water Association | OR4105117 | CWS | Medford | 45 | Jackson County |
| Darneille Estates | OR4101381 | CWS | Grants Pass | 47 | Josephine County |
| Days Creek Charter School | OR4192101 | NTNCWS | Days Creek | 230 | Douglas County |
| Dayton, City Of | OR4100252 | CWS | Dayton | 2,535 | Yamhill County |
| Dayville, City Of | OR4100253 | CWS | Dayville | 155 | Grant County |
| Dean Minard Water District | OR4101509 | CWS | Coquille | 75 | Coos County |
| Deception Creek Mobile Park | OR4100942 | CWS | Marcola | 40 | Lane County |
| Deer Creek Estates | OR4100068 | CWS | Aurora | 350 | Marion County |
| Deer Island Heights Ws | OR4105114 | CWS | St Helens | 60 | Columbia County |
| Deer Island Village Mhp | OR4100982 | CWS | Scappoose | 50 | Columbia County |
| Deer Island Village Mhp-Fawn Lane | OR4101567 | CWS | Scappoose | 50 | Columbia County |
| Deer Island Waterworks | OR4101233 | CWS | St Helens | 90 | Columbia County |
| Deer Trail Water System | OR4101367 | CWS | Bend | 45 | Deschutes County |
| Deer View Cooperative | OR4101046 | CWS | Rainier | 90 | Columbia County |
| Deerhorn Community Wtr Assn | OR4100833 | CWS | Springfield | 275 | Lane County |
| Del Rio Vineyard | OR4105571 | NTNCWS | Gold Hill | 30 | Jackson County |
| Delphian School | OR4100812 | CWS | Sheridan | 350 | Yamhill County |
| Depoe Bay, City Of | OR4100254 | CWS | Depoe Bay | 1,398 | Lincoln County |
| Deschutes Mobile Park | OR4100117 | CWS | Kalama | 62 | Deschutes County |
| Desert Cooperative Mhp | OR4101138 | CWS | Stockton | 100 | Jackson County |
| Desert Meadows Hoa | OR4101523 | CWS | Redmond | 150 | Deschutes County |
| Desert Terrace Mobile Estates | OR4100697 | CWS | Redmond | 100 | Deschutes County |
| Desire For Healing, Inc | OR4101330 | CWS | Pendleton | 33 | Umatilla County |
| Detroit Water System | OR4100257 | CWS | Detroit | 100 | Marion County |
| Dexter Oaks Co-Op | OR4100998 | CWS | Dexter | 75 | Lane County |
| Dexter Shores Mobile Home Park | OR4100997 | CWS | Dexter | 120 | Lane County |
| Diamond Hill Rv Park | OR4191717 | CWS | Harrisburg | 253 | Linn County |
| Diamond Lake Lodge/Resort | OR4192104 | CWS | Riddle | 90 | Douglas County |
| Diamond Ridge Water Association | OR4106138 | CWS | Eugene | 54 | Lane County |
| Dietz Air Park Water System | OR4100158 | CWS | Canby | 85 | Clackamas County |
| Dikeside Moorage | OR4101411 | CWS | Scappoose | 45 | Columbia County |
| Dixie Elementary Sd 509J | OR4191671 | NTNCWS | Corvallis | 110 | Linn County |
| Dlf Usa, Inc. | OR4195727 | NTNCWS | Albany | 55 | Linn County |
| Domaine Serene | OR4195526 | NTNCWS | Dayton | 124 | Yamhill County |
| Domaine Willamette Winery | OR4195689 | NTNCWS | Turner | 200 | Yamhill County |
| Dome School | OR4194466 | NTNCWS | Cave Junction | 40 | Josephine County |
| Drain, City Of | OR4100260 | CWS | Drain | 1,194 | Douglas County |
| Drifters Mobile Home Park | OR4101282 | CWS | Eagle Point | 80 | Jackson County |
| Dry Canyon | OR4101537 | CWS | Bend | 160 | Deschutes County |
| Dry Creek Airpark | OR4106110 | CWS | Prineville | 58 | Crook County |
| Dufur School Dist #29 | OR4190603 | NTNCWS | Dufur | 50 | Wasco County |
| Dufur, City Of | OR4100261 | CWS | Dufur | 610 | Wasco County |
| Dufur, South Basin | OR4101216 | CWS | Dufur | 33 | Wasco County |
| Dunn Court Duplexes | OR4100962 | CWS | Aloha | 88 | Marion County |
| Duplex Village East | OR4101534 | CWS | Salem | 41 | Marion County |
| Duplex Village Water System | OR4101397 | CWS | Salem | 165 | Marion County |
| Eagle Creek Mobile Estates | OR4101419 | CWS | Eagle Creek | 35 | Clackamas County |
| Eagle Creek School Sd 108 | OR4193715 | NTNCWS | Estacada | 150 | Clackamas County |
| Eagle Crest Mobile Home Park | OR4101222 | CWS | Eagle Creek | 300 | Clackamas County |
| Eagle Crest Resort | OR4101355 | CWS | Redmond | 400 | Deschutes County |
| Eagle Valley Rv Park | OR4193688 | CWS | Roseburg | 70 | Douglas County |
| East Linn Chr Acad Victory | OR4194917 | NTNCWS | Lebanon | 380 | Linn County |
| East Yamhill Rural Wd | OR4101288 | CWS | Yamhill | 90 | Yamhill County |
| Eastgate Center | OR4194865 | NTNCWS | Santa Rosa | 200 | Linn County |
| Eastmont Water Company | OR4100138 | CWS | Boring | 250 | Clackamas County |
| Echo, City Of | OR4100270 | CWS | Echo | 632 | Umatilla County |
| Eddyville Charter School | OR4192040 | NTNCWS | Eddyville | 250 | Lincoln County |
| Eden Park Homeowners | OR4100014 | CWS | Independence | 60 | Linn County |
| Elderberry Nehalem Ws | OR4100804 | CWS | Seaside | 160 | Clatsop County |
| Elgin Water Department | OR4100273 | CWS | Elgin | 1,717 | Union County |
| Elk City Water District | OR4101549 | CWS | Central Point | 600 | Jackson County |
| Elk River Campground | OR4194398 | CWS | Port Orford | 64 | Curry County |
| Elkton, City Of | OR4100276 | CWS | Elkton | 187 | Douglas County |
| Elmira High/Elementary | OR4191805 | NTNCWS | Elmira | 735 | Lane County |
| Emerald Christian Academy | OR4195379 | NTNCWS | Pleasant Hill | 80 | Lane County |
| Emerald Valley Mh & Rv Park | OR4100995 | CWS | Winston | 31 | Lane County |
| Enterprise, City Of | OR4100278 | CWS | Enterprise | 2,107 | Wallowa County |
| Estacada Mobile Village | OR4101252 | CWS | Clackamas | 150 | Clackamas County |
| Eugene Mobile Village | OR4101063 | CWS | Eugene | 260 | Lane County |
| Ever Fresh Fruit Company | OR4105587 | NTNCWS | Boring | 49 | Clackamas County |
| Evergreen Elementary | OR4193753 | NTNCWS | Silverton | 90 | Marion County |
| Evergreen Meadows Wtr Improv Dist | OR4105946 | CWS | Shady Cove | 70 | Jackson County |
| Ewing Young Elem Sd 29J | OR4191972 | NTNCWS | Newberg | 245 | Yamhill County |
| Excalibur Village | OR4100599 | CWS | Lake Oswego | 180 | Clackamas County |
| Fairview Water District | OR4100887 | CWS | Tillamook | 1,930 | Tillamook County |
| Falcon Cove Beach Wd | OR4100045 | CWS | Arch Cape | 215 | Clatsop County |
| Falcon Heights | OR4101075 | CWS | Klamath Falls | 559 | Klamath County |
| Fall Creek Farm And Nursery | OR4195551 | NTNCWS | Lowell | 120 | Lane County |
| Fall Creek Water District | OR4105252 | CWS | Alsea | 40 | Lincoln County |
| Family Redwood Park Cooperative | OR4100348 | CWS | Grants Pass | 250 | Josephine County |
| Farmington View Elem Sd 1J | OR4190606 | NTNCWS | Hillsboro | 340 | Washington County |
| Fed Ex - Hermiston | OR4195433 | NTNCWS | Hermiston | 80 | Umatilla County |
| Fern Ridge Middle School | OR4191810 | NTNCWS | Elmira | 430 | Lane County |
| Fern Ridge Shores | OR4100919 | CWS | Eugene | 275 | Lane County |
| Fern Valley Estates Impr Dist | OR4100514 | CWS | Medford | 135 | Jackson County |
| Ferndale Elementary | OR4190597 | NTNCWS | Milton-Freewater | 250 | Umatilla County |
| Fernhill Community Wtr System | OR4100059 | CWS | Astoria | 300 | Clatsop County |
| Fernridge Mobile Estates | OR4100421 | CWS | Junction City | 250 | Lane County |
| Fiddlers Green | OR4194958 | NTNCWS | Eugene | 100 | Lane County |
| Fir Grove Homeowners Assn | OR4101441 | CWS | Hillsboro | 450 | Washington County |
| Fir Grove Mobile Court | OR4100472 | CWS | Vancouver | 114 | Linn County |
| Fir View Water Company | OR4100023 | CWS | Albany | 150 | Benton County |
| Fischers Place Mhp | OR4101144 | CWS | Scappoose | 130 | Malheur County |
| Fishhawk Lake Reserve And Community | OR4100124 | CWS | Birkenfeld | 350 | Clatsop County, Columbia County |
| Fleming Middle School | OR4191907 | NTNCWS | Grants Pass | 412 | Josephine County |
| Flying K Trailer Ranch | OR4100455 | CWS | La Grande | 96 | Union County |
| Foley Lakes Mobile Home Park | OR4100871 | CWS | The Dalles | 300 | Wasco County |
| Forest Haven Subdivision | OR4101150 | CWS | Molalla | 165 | Clackamas County |
| Forest Park Mobile Village | OR4101207 | CWS | Molalla | 75 | Clackamas County |
| Forest River Harrisburg | OR4194711 | NTNCWS | Eugene | 60 | Linn County |
| Fort Vannoy Elementary | OR4191906 | NTNCWS | Grants Pass | 399 | Josephine County |
| Fortune Branch Village Mhp | OR4105734 | CWS | Lafayette | 80 | Douglas County |
| Forum Salem Campus | OR4195003 | NTNCWS | Salem | 100 | Marion County |
| Fossil, City Of | OR4100307 | CWS | Fossil | 470 | Wheeler County |
| Four Seasons Mhp | OR4100118 | CWS | Bend | 100 | Deschutes County |
| Fox Hollow Estates Water Corp | OR4101434 | CWS | Salem | 26 | Marion County |
| Fox Ridge Water Co | OR4101517 | CWS | Mcminnville | 60 | Yamhill County |
| Frank Lumber Co Inc | OR4194873 | NTNCWS | Mill City | 106 | Linn County |
| Freres Lumber Company | OR4194872 | NTNCWS | Lyons | 200 | Linn County |
| Fruitdale Heights Water Co | OR4100343 | CWS | Grants Pass | 70 | Josephine County |
| Fruitland Elementary Sd 24J | OR4193763 | NTNCWS | Salem | 70 | Marion County |
| Fry Foods | OR4195337 | NTNCWS | Ontario | 280 | Malheur County |
| Galice Subdivision Water Co | OR4101424 | CWS | Merlin | 33 | Josephine County |
| Garden Valley Water Association | OR4100214 | CWS | Coos Bay | 84 | Coos County |
| Garibaldi Water System | OR4100311 | CWS | Garibaldi | 837 | Tillamook County |
| Gaston, City Of | OR4100312 | CWS | Gaston | 625 | Washington County |
| Gates, City Of | OR4100317 | CWS | Gates | 458 | Linn County, Marion County |
| Gearhart Water Department | OR4100318 | CWS | Gearhart | 1,780 | Clatsop County |
| Georgia-Pacific, Wauna Mill | OR4190416 | NTNCWS | Clatskanie | 760 | Clatsop County |
| Gervais Water Department | OR4100319 | CWS | Gervais | 2,571 | Marion County |
| Gh2O Inc | OR4105730 | CWS | Burns | 120 | Harney County |
| Gilchrist Water System Llc | OR4100320 | CWS | Gilcrest | 440 | Klamath County |
| Glendale, City Of | OR4100323 | CWS | Glendale | 864 | Douglas County |
| Glenmorrie Cooperative Assn | OR4100459 | CWS | Lake Oswego | 310 | Clackamas County |
| Glide Water Association | OR4100326 | CWS | Glide | 1,523 | Douglas County |
| Gnr Water District | OR4101050 | CWS | Sandy | 60 | Clackamas County |
| Goble Water Association | OR4100690 | CWS | Rainier | 85 | Columbia County |
| Gold Beach, City Of | OR4101059 | CWS | Gold Beach | 3,000 | Curry County |
| Gold Hill Mobile Home Park | OR4100180 | CWS | Talent | 76 | Jackson County |
| Gold Hill, City Of | OR4100333 | CWS | Gold Hill | 1,335 | Jackson County |
| Golf Mhp | OR4100588 | CWS | Seattle | 60 | Malheur County |
| Government Camp Water System | OR4100336 | CWS | Government Camp | 200 | Clackamas County |
| Grand Prairie Water Supply Co | OR4100024 | CWS | Albany | 110 | Linn County |
| Grand Ronde Community Wtr Assn | OR4100338 | CWS | Grand Ronde | 2,500 | Polk County |
| Grandview Mobile Home Park | OR4100991 | CWS | Eugene | 99 | Lane County |
| Grants Pass Mobile Home Park Llc | OR4101175 | CWS | Sacramento | 140 | Jackson County |
| Grants Pass Sda School | OR4194802 | NTNCWS | Grants Pass | 75 | Josephine County |
| Grass Valley Water System | OR4100356 | CWS | Grass Valley | 184 | Sherman County |
| Green Acres | OR4195168 | CWS | Irrigon | 97 | Morrow County |
| Green Acres Elem | OR4193971 | NTNCWS | Lebanon | 350 | Linn County |
| Green Acres Mhp - Umatilla Co | OR4100523 | CWS | West Linn | 200 | Umatilla County |
| Green Acres Rv Park | OR4194214 | CWS | Redmond | 135 | Deschutes County |
| Green Diamond Or Forest Mgmt | OR4193994 | NTNCWS | Klamath Falls | 50 | Klamath County |
| Green Meadows Wtr Corporation | OR4100614 | CWS | Pendleton | 75 | Umatilla County |
| Green Oaks Park Llc | OR4100774 | CWS | Salem | 165 | Marion County |
| Grim Estates | OR4100006 | CWS | Aurora | 40 | Marion County |
| Groner Elementary Sd 1J | OR4190607 | NTNCWS | Hillsboro | 250 | Washington County |
| Guide Dogs For The Blind Inc | OR4194946 | NTNCWS | Boring | 75 | Clackamas County |
| Guptil Subdivision | OR4100602 | CWS | Otis | 79 | Lincoln County |
| Hafez Water System | OR4100025 | CWS | Albany | 78 | Linn County |
| Haines, City Of | OR4100362 | CWS | Haines | 395 | Baker County |
| Halcyon Villa Mobile Home Park | OR4100475 | CWS | Eugene | 126 | Linn County |
| Halfway, City Of | OR4100363 | CWS | Halfway | 346 | Baker County |
| Halls Trailer Court | OR4101123 | CWS | Pendleton | 60 | Umatilla County |
| Halsey, City Of | OR4100364 | CWS | Halsey | 800 | Linn County |
| Hamilton Creek School | OR4190571 | NTNCWS | Lebanon | 360 | Linn County |
| Happy Hollow Water Company | OR4101353 | CWS | Prineville | 40 | Crook County |
| Harbor Water Pud | OR4100150 | CWS | Harbor | 3,150 | Curry County |
| Harmony Acres Mobile Park | OR4100810 | CWS | Tangent | 31 | Linn County |
| Harper High/Elementary Sd 66 | OR4190575 | NTNCWS | Harper | 170 | Malheur County |
| Harwoods Mobile Manor | OR4100422 | CWS | Eugene | 65 | Lane County |
| Hat Rock Mobile Court | OR4191232 | CWS | Beaverton | 60 | Umatilla County |
| Hat Rock Water Company | OR4101309 | CWS | Hermiston | 150 | Umatilla County |
| Hawks Point | OR4101465 | CWS | Eugene | 75 | Lane County |
| Hazel Dell Orchard | OR4105553 | CWS | The Dalles | 260 | Wasco County |
| Hd Aviation | OR4195308 | NTNCWS | Aurora | 100 | Marion County |
| Hebo Joint Water & Sanitary Auth | OR4100367 | CWS | Hebo | 250 | Tillamook County |
| Helix, City Of | OR4100368 | CWS | Helix | 190 | Umatilla County |
| Heppner, City Of | OR4100369 | CWS | Heppner | 1,187 | Morrow County |
| Heritage Hills Homeowners Assn | OR4105562 | CWS | North Bend | 34 | Coos County |
| Heritage Improvement District | OR4100615 | CWS | Pendleton | 125 | Umatilla County |
| Hermiston Adventist School | OR4195066 | NTNCWS | Hermiston | 40 | Umatilla County |
| Hidden Meadows Subdivision | OR4101508 | CWS | Eugene | 40 | Lane County |
| Hidden Meadows Water Assn Inc | OR4101464 | CWS | Newberg | 110 | Yamhill County |
| Hidden Valley High | OR4191908 | NTNCWS | Grants Pass | 546 | Josephine County |
| Hidden Valley Mobile Home Estates | OR4100695 | CWS | Redmond | 240 | Deschutes County |
| Hideaway Hills Water Company | OR4100787 | CWS | Sandy | 45 | Clackamas County |
| High Desert Estates | OR4101457 | CWS | Prineville | 380 | Crook County |
| High Desert Museum | OR4193699 | NTNCWS | Bend | 493 | Deschutes County |
| High Prairie Villa Wtr System | OR4100583 | CWS | Oakridge | 49 | Lane County |
| Highland Heights Estates | OR4100350 | CWS | Grants Pass | 60 | Josephine County |
| Highland Ranch Estates | OR4101194 | CWS | Burns | 60 | Harney County |
| Highland Subdivision Wd | OR4101195 | CWS | Prineville | 335 | Crook County |
| Highland View Mobile Home Park | OR4101065 | CWS | Clackamas | 60 | Clackamas County |
| Hiland Wc - Echo Mountain | OR4100605 | CWS | Newberg | 362 | Lincoln County |
| Hiland Wc - Fryer Hill | OR4105398 | CWS | Newberg | 32 | Yamhill County |
| Hiland Wc - Helton | OR4100741 | CWS | Newberg | 75 | Marion County |
| Hiland Wc - Heritage Water Company | OR4100743 | CWS | Newberg | 55 | Marion County |
| Hiland Wc - Hillview | OR4105917 | CWS | Newberg | 38 | Yamhill County |
| Hiland Wc - Illahe Golf Club Estates | OR4100755 | CWS | Newberg | 561 | Marion County |
| Hiland Wc - Lombard | OR4100748 | CWS | Newberg | 300 | Marion County |
| Hiland Wc - Penticton/College Park | OR4101392 | CWS | Newberg | 710 | Marion County |
| Hiland Wc - Riverbend | OR4100601 | CWS | Newberg | 172 | Lincoln County |
| Hiland Wc - Shadow Wood | OR4100947 | CWS | Newberg | 175 | Clackamas County |
| Hiland Wc - Shady Cove | OR4101520 | CWS | Newberg | 1,000 | Jackson County |
| Hiland Wc - Stables | OR4106213 | CWS | Newberg | 20 | Yamhill County |
| Hiland Wc - Westwood | OR4100567 | CWS | Newberg | 200 | Lincoln County |
| Hiland Wc - Wilderness | OR4105940 | CWS | Newberg | 20 | Yamhill County |
| Hiland Wc - Wyland | OR4101538 | CWS | Newberg | 25 | Yamhill County |
| Hillsboro Landfill | OR4195613 | NTNCWS | Portland | 50 | Washington County |
| Hillsboro-Cherry Grove | OR4100985 | CWS | Hillsboro | 1,628 | Washington County |
| Hillsview Covenant Church | OR4194991 | NTNCWS | Damascus | 70 | Clackamas County |
| Hilltop Improvement District | OR4100237 | CWS | Cottage Grove | 45 | Lane County |
| Hines Water Department | OR4100382 | CWS | Hines | 1,645 | Harney County |
| Hogg Heaven Mhp | OR4101041 | CWS | Beaverton | 40 | Columbia County |
| Holiday Mobile Home Park | OR4101191 | CWS | Grants Pass | 58 | Josephine County |
| Holley Elementary Sd 55 | OR4193746 | NTNCWS | Sweet Home | 150 | Linn County |
| Holy Family Academy | OR4190578 | NTNCWS | Mt Angel | 60 | Marion County |
| Hoodview Mobile Estates | OR4100391 | CWS | Hubbard | 100 | Marion County |
| Hope Valley Resort | OR4193698 | CWS | Turner | 200 | Marion County |
| Hopewell Water Company | OR4100251 | CWS | Salem | 100 | Yamhill County |
| Horizon Village Community Water System | OR4106114 | CWS | Grants Pass | 80 | Josephine County |
| House Of Glory Lebanon | OR4191673 | NTNCWS | Lebanon | 60 | Linn County |
| Hs Energy | OR4195602 | NTNCWS | Grants Pass | 72 | Josephine County |
| Htps Water System | OR4190588 | NTNCWS | Silverton | 75 | Marion County |
| Hull-Oakes Lumber Company | OR4194013 | NTNCWS | Monroe | 51 | Benton County |
| Hunnell Hills Water System | OR4100090 | CWS | Bend | 45 | Deschutes County |
| Hunt Water District | OR4100888 | CWS | Tillamook | 60 | Tillamook County |
| Huntington, City Of | OR4100393 | CWS | Huntington | 510 | Baker County |
| Idaho Power-Oxbow Plant | OR4194284 | NTNCWS | Oxbow | 35 | Baker County |
| Idaho Power-Oxbow Village | OR4100384 | CWS | Oxbow | 75 | Baker County |
| Idanha City Water | OR4100394 | CWS | Idanha | 168 | Linn County |
| Idleway Improvement District | OR4101208 | CWS | Prineville | 183 | Crook County |
| Imbler, City Of | OR4101418 | CWS | Imbler | 250 | Union County |
| Indian Meadow Water Company | OR4100828 | CWS | Sisters | 500 | Deschutes County |
| Inn At Otter Crest | OR4101527 | CWS | Otter Rock | 90 | Lincoln County |
| Interfor Pacific Inc | OR4190043 | NTNCWS | Molalla | 100 | Clackamas County |
| Interlachen Water Pud | OR4100902 | CWS | Fairview | 360 | Multnomah County |
| Ione, City Of | OR4100402 | CWS | Ione | 330 | Morrow County |
| Irrigon, City Of | OR4100403 | CWS | Irrigon | 2,133 | Morrow County |
| Island City | OR4100454 | CWS | Island City | 1,166 | Union County |
| J & M Mobile Home Park | OR4100688 | CWS | Rainier | 45 | Columbia County |
| J Frank Schmidt And Son Co | OR4194763 | NTNCWS | Boring | 120 | Clackamas County |
| Jackson Creek Water Association | OR4100977 | CWS | Corvallis | 39 | Benton County |
| Jackson Wellsprings | OR4100051 | CWS | Ashland | 100 | Jackson County |
| Jacksonville Lds Church | OR4195255 | NTNCWS | Veneta | 100 | Jackson County |
| Jacksonville, City Of | OR4100405 | CWS | Jacksonville | 3,012 | Jackson County |
| Jasper Mountain Center | OR4195069 | NTNCWS | Jasper | 65 | Lane County |
| Jasper Mountain Safe Center | OR4195071 | NTNCWS | Springfield | 30 | Lane County |
| Jasper Wood Products | OR4195084 | NTNCWS | Jasper | 150 | Lane County |
| Jefferson Baptist Church | OR4195136 | NTNCWS | Jefferson | 50 | Marion County |
| Jefferson Mobile Acres | OR4100409 | CWS | Jefferson | 65 | Marion County |
| Jefferson, City Of | OR4100408 | CWS | Jefferson | 3,348 | Marion County |
| Jerome Prairie Elementary | OR4191926 | NTNCWS | Grants Pass | 150 | Josephine County |
| Jewell School District #8 | OR4190531 | NTNCWS | Seaside | 200 | Clatsop County |
| Jj Snack Food Handheld | OR4195569 | NTNCWS | Weston | 150 | Umatilla County |
| Jlr | OR4194431 | NTNCWS | Woodburn | 200 | Marion County |
| John Day Water District | OR4100060 | CWS | Astoria | 350 | Clatsop County |
| John Day, City Of | OR4100410 | CWS | John Day | 1,617 | Grant County |
| Johnson Creek Water Service | OR4101072 | CWS | Newberg | 0 | Lincoln County |
| Joint Water Commission | OR4100379 | CWS | Hillsboro | 0 | Washington County |
| Jordan Valley, City Of | OR4100411 | CWS | Jordan Valley | 175 | Malheur County |
| Joseph, City Of | OR4100414 | CWS | Joseph | 1,182 | Wallowa County |
| Junction City Water Utilities | OR4100418 | CWS | Junction City | 7,000 | Lane County |
| Juniper Mobile Park | OR4100083 | CWS | Bend | 175 | Deschutes County |
| Junipine Acres | OR4105410 | CWS | Newberg | 70 | Deschutes County |
| Juno Nonprofit Water Improvement Distr | OR4100889 | CWS | Tillamook | 255 | Tillamook County |
| Kashmir Business Park Llc | OR4195754 | NTNCWS | Salem | 30 | Marion County |
| Keiths Mobile Home Park | OR4101023 | CWS | Grants Pass | 55 | Josephine County |
| Kelso Water Assn | OR4100134 | CWS | Sandy | 300 | Clackamas County |
| Keno Water Co Inc | OR4100425 | CWS | Keno | 290 | Klamath County |
| Kerby Water District | OR4101521 | CWS | Cave Junction | 400 | Josephine County |
| Kidco Head Start-Riverside | OR4190887 | NTNCWS | Lebanon | 150 | Linn County |
| Kidco Head Start-Sunnyside | OR4191681 | NTNCWS | Lebanon | 75 | Linn County |
| Kilchis Water District | OR4100080 | CWS | Tillamook | 500 | Tillamook County |
| King Estate Winery | OR4195289 | NTNCWS | Eugene | 300 | Lane County |
| King Silver Rv Park | OR4194280 | CWS | Waldport | 62 | Lincoln County |
| Kings Valley Charter School | OR4193714 | NTNCWS | Philomath | 215 | Benton County |
| Kingswood Heights Water Co-Op | OR4100358 | CWS | Sandy | 138 | Clackamas County |
| Kla-Mo-Ya Casino | 104100002 | NTNCWS | Chiloquin | 580 | |
| Klamath Co Project Homefront | OR4190159 | CWS | Klamath Falls | 37 | Klamath County |
| Knappa Water Association | OR4100061 | CWS | Astoria | 1,800 | Clatsop County |
| Knife River - Nw Tangent | OR4194328 | NTNCWS | Tangent | 60 | Linn County |
| Knife River Materials - Central Oregon | OR4106204 | NTNCWS | Tangent | 60 | Deschutes County |
| Knife River Prestress Inc | OR4194811 | NTNCWS | Harrisburg | 100 | Linn County |
| Knoll Terrace Park | OR4100174 | CWS | Corvallis | 452 | Benton County |
| Knoll Terrace Subdivision | OR4101560 | CWS | Canyonville | 221 | Douglas County |
| Kountry Village | OR4101002 | CWS | Eugene | 60 | Lane County |
| Kozy Acres Water System | OR4101345 | CWS | Waldport | 40 | Lincoln County |
| Kws Seeds, Llc | OR4194868 | NTNCWS | Tangent | 30 | Linn County |
| La Casa Mia | OR4100696 | CWS | Redmond | 135 | Deschutes County |
| La Pine, City Of | OR4101496 | CWS | La Pine | 2,807 | Deschutes County |
| La Water Co-Op | OR4100313 | CWS | Gaston | 2,500 | Washington County, Yamhill County |
| Labish Village Wtr Commission | OR4100745 | CWS | Salem | 452 | Marion County |
| Lacomb Elementary | OR4191687 | NTNCWS | Lebanon | 320 | Linn County |
| Laidlaw Water District | OR4101096 | CWS | La Pine | 740 | Deschutes County |
| Lake Creek Learning Ctr | OR4195343 | NTNCWS | Eagle Point | 50 | Jackson County |
| Lake Creek Ranch Mhc | OR4101429 | CWS | Tangent | 300 | Linn County |
| Lake Grove Water District | OR4100460 | CWS | Lake Oswego | 3,100 | Clackamas County |
| Lake Labish Elementary Sd 24-J | OR4193765 | NTNCWS | Salem | 25 | Marion County |
| Lake Oswego - Tigard Water Supply | OR4101542 | CWS | West Linn | 0 | Clackamas County |
| Lakeshore Terrace | OR4100746 | CWS | Salem | 60 | Marion County |
| Lakeshore Water Company | OR4100284 | CWS | Newberg | 135 | Lane County |
| Lakeside Foods | OR4190234 | NTNCWS | Weston | 250 | Umatilla County |
| Lakeside Mobile Home & Rv Park | OR4100450 | CWS | Trinidad | 110 | Klamath County |
| Lakeside Mobile Home Park | OR4100999 | CWS | Eugene | 28 | Lane County |
| Lakeside Mobile Home Park (A) | OR4101564 | CWS | Eugene | 28 | Lane County |
| Lakeside Water District | OR4100463 | CWS | Lakeside | 1,800 | Coos County |
| Lakewood Homeowners | OR4101097 | CWS | Newberg | 289 | Marion County |
| Lakewood Rv Park | OR4194998 | CWS | White City | 45 | Jackson County |
| Lakewood Shopping Center | OR4194704 | NTNCWS | Medford | 50 | Jackson County |
| Lamb Weston | OR4194562 | NTNCWS | Hermiston | 500 | Umatilla County |
| Lamontai Improvement Wtr Dist | OR4100238 | CWS | Cottage Grove | 255 | Lane County |
| Lane Co Parks Orchard Point Pk | OR4191845 | NTNCWS | Eugene | 255 | Lane County |
| Langdon Farms Golf Club | OR4195034 | NTNCWS | Aurora | 100 | Clackamas County |
| Langlois Water District | OR4100466 | CWS | Langlois | 220 | Curry County |
| Lark Meadows Association | OR4100159 | CWS | Canby | 80 | Clackamas County |
| Latimer Road Water Association | OR4100881 | CWS | Tillamook | 150 | Tillamook County |
| Latourell Falls Township | OR4101217 | CWS | Corbett | 32 | Multnomah County |
| Laurel Acres Water Co Inc | OR4100217 | CWS | Cornelius | 50 | Washington County |
| Laurel Ridge Mhp | OR4101311 | CWS | Scappoose | 70 | Columbia County |
| Laurelwood Water Assoc | OR4100691 | CWS | Newberg | 50 | Columbia County |
| Laurelwood Water Users | OR4100315 | CWS | Gaston | 200 | Washington County |
| Lawrence Subdivision Wtr Assn | OR4100474 | CWS | Brownsville | 125 | Linn County |
| Lawson Acres Water Association | OR4100707 | CWS | Riddle | 75 | Douglas County |
| Lazy Acres Mobile Home Park | OR4101399 | CWS | Woodburn | 59 | Marion County |
| Lazy Days Mobile Home Park | OR4100990 | CWS | Eugene | 52 | Lane County |
| Lebanon High School | OR4193745 | NTNCWS | Lebanon | 1,350 | Linn County |
| Lebanon Union High-Land Lab | OR4194208 | NTNCWS | Lebanon | 75 | Linn County |
| Leisure Days Mobile Home Park | OR4101292 | CWS | Prospect | 90 | Jackson County |
| Leisure Pines Mobile Ranch | OR4190668 | CWS | Medford | 50 | Jackson County |
| Lexington, Town Of | OR4100479 | CWS | Lexington | 255 | Morrow County |
| Lgc Meadowlark Manor Llc | OR4100776 | CWS | Salem | 195 | Marion County |
| Lgc Western Carriage Llc | OR4101032 | CWS | Medford | 150 | Jackson County |
| Lincoln Savage Middle School | OR4191913 | NTNCWS | Grants Pass | 500 | Josephine County |
| Linn West | OR4194322 | NTNCWS | Tangent | 80 | Linn County |
| Little Beavers Preschool #1 | OR4194078 | NTNCWS | Corvallis | 50 | Benton County |
| Little Monkeys Abc Daycare | OR4195712 | NTNCWS | Trail | 30 | Jackson County |
| Livingstone Adventist Academy-Sda | OR4194312 | NTNCWS | Salem | 220 | Marion County |
| London Elementary Sd 45J3 | OR4191830 | NTNCWS | Cottage Grove | 107 | Lane County |
| London Water Co-Op | OR4100239 | CWS | Cottage Grove | 63 | Lane County |
| Lone Oak Estates | OR4101470 | CWS | Tangent | 258 | Linn County |
| Long Creek, City Of | OR4100490 | CWS | Long Creek | 173 | Grant County |
| Long Prairie Water District | OR4100890 | CWS | Tillamook | 1,052 | Tillamook County |
| Lonza Bend Inc | OR4194724 | NTNCWS | Bend | 110 | Deschutes County |
| Lorna Water District | OR4100662 | CWS | Newberg | 212 | Multnomah County |
| Lost Creek Heights Wtr Assoc | OR4101304 | CWS | Clatskanie | 100 | Columbia County |
| Lost River High School | OR4190552 | NTNCWS | Klamath Falls | 320 | Klamath County |
| Lostine, City Of | OR4100491 | CWS | Lostine | 350 | Wallowa County |
| Loves Travel Stop-Boardman | OR4195533 | NTNCWS | Boardman | 999 | Morrow County |
| Lowell, City Of | OR4100492 | CWS | Lowell | 1,264 | Lane County |
| Lower Siletz Water System | OR4101428 | CWS | Lincoln City | 165 | Lincoln County |
| Luckiamute Domestic Water Coop | OR4100538 | CWS | Monmouth | 2,738 | Polk County |
| Luckiamute Valley Charter Schools | OR4193771 | NTNCWS | Dallas | 50 | Polk County |
| Lunnville Water District | OR4105159 | CWS | Yamhill | 32 | Yamhill County |
| Lusted Water District | OR4100361 | CWS | Gresham | 1,200 | Multnomah County |
| Lyons Mehama Water District | OR4100493 | CWS | Lyons | 1,300 | Linn County, Marion County |
| Madrona Elementary | OR4193668 | NTNCWS | Grants Pass | 360 | Josephine County |
| Madrone Hill Mobile Home Park | OR4101033 | CWS | Central Point | 155 | Jackson County |
| Malin Municipal Water | OR4100504 | CWS | Malin | 815 | Klamath County |
| Manna House Church | OR4101267 | CWS | Portland | 300 | Multnomah County |
| Manzanita Elementary | OR4191914 | NTNCWS | Grants Pass | 465 | Josephine County |
| Manzanita Hills Subdivision | OR4106155 | CWS | Shady Cove | 30 | Jackson County |
| Manzanita, City Of | OR4100505 | CWS | Manzanita | 3,200 | Tillamook County |
| Maple Elsie Water Service | OR4100805 | CWS | Seaside | 100 | Clatsop County |
| Maple Terrace Mobile Home Park | OR4100983 | CWS | Happy Valley | 65 | Columbia County |
| Mapleton Water District | OR4100507 | CWS | Mapleton | 600 | Lane County |
| Marion Co Public Works | OR4194399 | NTNCWS | Salem | 200 | Marion County |
| Mars Enterprises | OR4195494 | NTNCWS | Salem | 150 | Marion County |
| Marshland Water Association | OR4101449 | CWS | Clatskanie | 70 | Columbia County |
| Maupin, City Of | OR4100510 | CWS | Maupin | 420 | Wasco County |
| Mayfair Moorage Inc | OR4101258 | CWS | Portland | 30 | Multnomah County |
| Mccuddys Landing | OR4106090 | CWS | Portland | 70 | Columbia County |
| Mcdougal Water System | OR4105879 | CWS | Prineville | 60 | Crook County |
| Mcisaac Spring | OR4105078 | NTNCWS | The Dalles | 45 | Hood River County |
| Mckay Acres Improvement Dist | OR4100616 | CWS | Pendleton | 75 | Umatilla County |
| Mckee Bridge Mobile Home Park | OR4101165 | CWS | Encinitas | 40 | Jackson County |
| Mckenzie Palisades Water Board | OR4100923 | CWS | Cottage Grove | 50 | Lane County |
| Mclain Village Water Dept | OR4100765 | CWS | Salem | 100 | Marion County |
| Mclane Industrial Park | OR4195645 | NTNCWS | Central Point | 40 | Jackson County |
| Mcnary Oaks Mobile Villa | OR4100498 | CWS | Keizer | 150 | Marion County |
| Mcnulty Water Pud | OR4100725 | CWS | St. Helens | 2,500 | Columbia County |
| Meadow Creek Subdivision | OR4101443 | CWS | Grants Pass | 60 | Josephine County |
| Meadow Wood Estates | OR4106166 | CWS | Tangent | 60 | Linn County |
| Medford Gold Hill Koa | OR4191540 | CWS | Gold Hill | 100 | Jackson County |
| Merlin Alternative Center | OR4191915 | NTNCWS | Grants Pass | 50 | Josephine County |
| Merrill Water Department | OR4100518 | CWS | Malin | 907 | Klamath County |
| Metolius Meadows Prop Owners | OR4190192 | CWS | Camp Sherman | 285 | Jefferson County |
| Michael Curry Design | OR4195224 | NTNCWS | St. Helens | 25 | Columbia County |
| Midland Water Association | OR4101139 | CWS | Clatskanie | 160 | Columbia County |
| Mill City Water Department | OR4100520 | CWS | Mill City | 1,830 | Linn County, Marion County |
| Mill Mar Estates Irrigation Assoc | OR4101472 | CWS | Shady Cove | 75 | Jackson County |
| Milo Academy | OR4100250 | CWS | Days Creek | 124 | Douglas County |
| Milton-Stateline Sda School | OR4194985 | NTNCWS | Milton-Freewater | 100 | Umatilla County |
| Mint Acres Water Co-Op | OR4100292 | CWS | Cottage Grove | 35 | Lane County |
| Mist Grade Elem Sd 47J | OR4194397 | NTNCWS | Vernonia | 40 | Columbia County |
| Mitchell, City Of | OR4100533 | CWS | Mitchell | 138 | Wheeler County |
| Mobile Village Mhp Llc | OR4100984 | CWS | Portland | 100 | Multnomah County |
| Mobilife Water Company Inc | OR4100291 | CWS | Eugene | 175 | Lane County |
| Mohawk Elementary Sd 19 | OR4191840 | NTNCWS | Springfield | 60 | Lane County |
| Molalla River Academy | OR4193909 | NTNCWS | Molalla | 200 | Clackamas County |
| Molalla River Sd - Clarkes Elem | OR4190530 | NTNCWS | Molalla | 180 | Clackamas County |
| Molalla River Sd Rural Dell Elem | OR4190529 | NTNCWS | Molalla | 280 | Clackamas County |
| Monitor Old-Rite School | OR4190580 | NTNCWS | Mount Angel | 144 | Marion County |
| Monroe, City Of | OR4100540 | CWS | Harrisburg | 723 | Benton County |
| Monrovia Main Office | OR4195535 | NTNCWS | Dayton | 35 | Yamhill County |
| Monrovia North | OR4194336 | NTNCWS | Dayton | 175 | Yamhill County |
| Monrovia South | OR4195534 | NTNCWS | Dayton | 175 | Yamhill County |
| Monument, City Of | OR4100541 | CWS | Monument | 115 | Grant County |
| Moro, City Of | OR4100542 | CWS | Moro | 350 | Sherman County |
| Mosier, City Of | OR4100543 | CWS | Enterprise | 468 | Wasco County |
| Mossy Brae Water District | OR4100945 | CWS | West Linn | 100 | Clackamas County |
| Mount Vernon, City Of | OR4100546 | CWS | Mount Vernon | 510 | Grant County |
| Mountain Air Water Assoc | OR4100144 | CWS | Sandy | 170 | Clackamas County |
| Mountain View Co-Op | OR4101125 | CWS | Estacada | 95 | Clackamas County |
| Mountain View Mhp | OR4101466 | CWS | Redmond | 104 | Deschutes County |
| Mountain View Motel | OR4190401 | CWS | Sherwood | 36 | Columbia County |
| Mountain Village | OR4101105 | CWS | Melba | 60 | Jackson County |
| Mt Angel Abbey | OR4190170 | CWS | St Benedictine | 150 | Marion County |
| Mt Bachelor Inc | OR4191747 | NTNCWS | Bend | 1,726 | Deschutes County |
| Mt Hood Meadows Spring | OR4191167 | NTNCWS | Mt Hood | 1,400 | Hood River County |
| Mt Hood Rv Village | OR4194548 | CWS | Sandy | 200 | Clackamas County |
| Mt Shadow Mhp | OR4105290 | CWS | Mulino | 30 | Clackamas County |
| Mt Terrace Mhp | OR4105364 | CWS | East Vale | 60 | Coos County |
| Mt View Elementary Sd 509J | OR4193713 | NTNCWS | Corvallis | 250 | Benton County |
| Muddy Creek Charter School | OR4193712 | NTNCWS | Corvallis | 125 | Benton County |
| Mulino Water District | OR4100547 | CWS | Mulino | 700 | Clackamas County |
| Myrtle Point, City Of | OR4100551 | CWS | Myrtle Point | 2,656 | Coos County |
| Nantucket Shores | OR4195088 | CWS | Pacific City | 25 | Tillamook County |
| Nature Discovery School | OR4195498 | NTNCWS | Junction City | 62 | Lane County |
| Nauvoo Mobile Estates | OR4100052 | CWS | Central Point | 85 | Jackson County |
| Neahkahnie Water District | OR4100506 | CWS | Nehalem | 600 | Tillamook County |
| Nehalem, City Of | OR4100554 | CWS | Nehalem | 1,700 | Tillamook County |
| Neighborhood Church | OR4195523 | NTNCWS | Tualatin | 180 | Clackamas County |
| Nesika Beach-Ophir Wd | OR4100329 | CWS | Ophir | 1,500 | Curry County |
| Neskowin Reg Water Dist | OR4100970 | CWS | Neskowin | 1,735 | Tillamook County |
| Neskowin Valley School | OR4194687 | NTNCWS | Neskowin | 30 | Tillamook County |
| Nestled In Hills Mhp | OR4101037 | CWS | Medford | 60 | Jackson County |
| Nestucca High School | OR4190594 | NTNCWS | Newberg | 270 | Tillamook County |
| Nestucca Valley School District | OR4190595 | NTNCWS | Newberg | 325 | Tillamook County |
| Netarts Water District | OR4100556 | CWS | Netarts | 1,800 | Tillamook County |
| New Hope Christian School | OR4194914 | NTNCWS | Grants Pass | 375 | Josephine County |
| New Hope Church | OR4191677 | NTNCWS | Lebanon | 50 | Linn County |
| Ni-Lah-Sha Village Hoa | OR4101480 | CWS | Redmond | 70 | Deschutes County |
| Ninety-One Elem Sd 91 | OR4193718 | NTNCWS | Canby | 450 | Clackamas County |
| North Ashland Professional Condo Assn | OR4191547 | NTNCWS | Ashland | 25 | Jackson County |
| North Bayside Estates-North | OR4100575 | CWS | North Bend | 65 | Coos County |
| North Bayside Estates-South | OR4101463 | CWS | North Bend | 40 | Coos County |
| North Brightwood Improv Assn | OR4105395 | CWS | Welches | 50 | Clackamas County |
| North Clackamas County Wc | OR4100580 | CWS | Happy Valley | 0 | Clackamas County |
| North Corvallis Mhp-Well #1 | OR4101158 | CWS | Corvallis | 100 | Benton County |
| North Hill Water Corporation | OR4100374 | CWS | Hermiston | 100 | Umatilla County |
| North Lake School Sd 14 | OR4194875 | NTNCWS | Silver Lake | 260 | Lake County |
| North Marion Sd #15 | OR4193755 | NTNCWS | Aurora | 2,100 | Marion County |
| North Plains Water Department | OR4100576 | CWS | North Plains | 3,663 | Washington County |
| North Powder, City Of | OR4100577 | CWS | North Powder | 501 | Baker County, Union County |
| North Valley High | OR4191918 | NTNCWS | Grants Pass | 485 | Josephine County |
| Northwest Hazelnut Company | OR4105714 | NTNCWS | Hubbard | 100 | Marion County |
| Northwest Newberg Water Assn | OR4100560 | CWS | Newberg | 250 | Yamhill County |
| Northwood Water District Inc | OR4100885 | CWS | Tillamook | 60 | Tillamook County |
| Norwood Pud | OR4101471 | CWS | Grants Pass | 150 | Josephine County |
| Nps Annie Springs | OR4101080 | CWS | Crater Lake | 200 | Klamath County |
| Nps Oregon Caves National Monument O&M | OR4195706 | NTNCWS | Cave Junction | 75 | Josephine County |
| Nutrien Ag Solutions | OR4194345 | NTNCWS | Tangent | 50 | Linn County |
| Nw Wine Company | OR4195579 | NTNCWS | Dundee | 75 | Yamhill County |
| Nwrec/Osu | OR4190076 | NTNCWS | Aurora | 40 | Clackamas County |
| Nyssa, City Of | OR4100579 | CWS | Nyssa | 3,285 | Malheur County |
| Oak Flats | 104121121 | CWS | Siletz | 140 | Lincoln County |
| Oak Hill School | OR4194923 | NTNCWS | Eugene | 242 | Lane County |
| Oakdale Trailer Park | OR4101416 | CWS | Salem | 26 | Marion County |
| Oakland, City Of | OR4100581 | CWS | Oakland | 954 | Douglas County |
| Oakridge, City Of | OR4100582 | CWS | Oakridge | 3,200 | Lane County |
| Oakvilla Mobile Home Park | OR4100028 | CWS | Albany | 140 | Linn County |
| Oakwood Water System Inc | OR4100037 | CWS | Albany | 55 | Linn County |
| Oceanside Water District | OR4100585 | CWS | Oceanside | 500 | Tillamook County |
| Oceanside Wd - Cape Meares | OR4100882 | CWS | Oceanside | 170 | Tillamook County |
| Ochoco Valley Home Improv Dist | OR4100680 | CWS | Prineville | 60 | Crook County |
| Ochoco West Wtr & San Authority | OR4100681 | CWS | Prineville | 400 | Crook County |
| Olam West Coast Inc | OR4105884 | NTNCWS | Boardman | 100 | Morrow County |
| Old Church Road Estates | OR4101516 | CWS | Brownsville | 35 | Linn County |
| Old Sheep Ranch Water Assoc | OR4105860 | CWS | Langlois | 56 | Curry County |
| Olds Mobile Park | OR4100392 | CWS | Vancouver | 60 | Marion County |
| Olney-Walluski Water Assn | OR4100057 | CWS | Astoria | 575 | Clatsop County |
| Olympic Forest Products | OR4194882 | NTNCWS | Scappoose | 80 | Columbia County |
| Or Youth Authority - Florence | OR4194710 | NTNCWS | Florence | 45 | Lane County |
| Or Youth Authority - Maclaren | OR4100960 | CWS | Woodburn | 750 | Marion County |
| Or Youth Authority - River Bend | OR4101486 | NTNCWS | La Grande | 75 | Union County |
| Orchard Heights Water Assn | OR4100783 | CWS | Lyons | 381 | Polk County |
| Orchard Point Mobile Homes | OR4100286 | CWS | Eugene | 99 | Lane County |
| Oregon Golf Course | OR4195024 | NTNCWS | West Linn | 35 | Clackamas County |
| Oregon Shores Beach Club Inc | OR4101327 | CWS | Chiloquin | 352 | Klamath County |
| Oregon Shores Recreation Club | OR4101285 | CWS | Chiloquin | 275 | Klamath County |
| Oregon Trail Sd - Kelso Elem | OR4193720 | NTNCWS | Sandy | 450 | Clackamas County |
| Oregon Trail Sd - Boring Mid Sch | OR4194670 | NTNCWS | Sandy | 400 | Clackamas County |
| Oregon Trail Sd - Cottrell Elem | OR4190528 | NTNCWS | Sandy | 300 | Clackamas County |
| Oregon Water Utilities - Cline Butte Inc | OR4101478 | CWS | Redmond | 2,526 | Deschutes County |
| Oregon Water Utilities - Mountain Lakes | OR4101475 | CWS | Klamath Falls | 770 | Klamath County |
| Oregon Water Utilities - Southview | OR4101503 | CWS | Klamath Falls | 250 | Klamath County |
| Oregon Water Utilities-Pinecrest | OR4101128 | CWS | Klamath Falls | 78 | Klamath County |
| Oregon Youth Challenge Program | OR4194971 | NTNCWS | Bend | 200 | Deschutes County |
| Orient Drive Mobile Estates | OR4100141 | CWS | Boring | 83 | Clackamas County |
| Otter Rock Water District | OR4100608 | CWS | Newberg | 175 | Lincoln County |
| Our Lady Of Lourdes Catholic Church | OR4191693 | NTNCWS | Scio | 49 | Linn County |
| Oxberg Water System #1 | OR4105308 | CWS | Newberg | 90 | Yamhill County |
| Pacific City Joint Water - San Auth | OR4100609 | CWS | Pacific City | 1,000 | Tillamook County |
| Pacific High School Sd 2J | OR4191211 | NTNCWS | Port Orford | 150 | Curry County |
| Pae Living Building | OR4195690 | NTNCWS | Portland | 25 | Multnomah County |
| Paisley, City Of | OR4100611 | CWS | Paisley | 245 | Lake County |
| Palatine Hill Water District | OR4100653 | CWS | Portland | 1,500 | Clackamas County, Multnomah County |
| Palo Mobile Home Park | OR4100824 | CWS | Keizer | 40 | Marion County |
| Panther Creek Wd | OR4100603 | CWS | Otis | 800 | Lincoln County |
| Paradise Community Assoc | OR4100264 | CWS | Eagle Creek | 75 | Clackamas County |
| Paradise Moorage | OR4101423 | CWS | Scappoose | 90 | Columbia County |
| Paradise/Rogue Meadows Ws | OR4100268 | CWS | Clackamas | 165 | Jackson County |
| Parkdale Water Company Inc | OR4100612 | CWS | Parkdale | 867 | Hood River County |
| Parkdale Water System | OR4101256 | CWS | Grants Pass | 100 | Josephine County |
| Parrett Mountain View Estates | OR4101498 | CWS | Sherwood | 155 | Washington County |
| Partners In Unity | OR4195580 | NTNCWS | Bend | 75 | Deschutes County |
| Pass Creek Rv Park Llc | OR4190906 | CWS | Sutherlin | 50 | Douglas County |
| Patrick Lumber Company | OR4195704 | NTNCWS | Philomath | 32 | Benton County |
| Paulina Elementary Co Unit | OR4193727 | NTNCWS | Prineville | 34 | Crook County |
| Periwinkle Mobile Home Park | OR4100029 | CWS | Eugene | 55 | Linn County |
| Perrydale Domestic Wtr Assn | OR4101149 | CWS | Amity | 2,655 | Polk County |
| Petes Mountain Water Co | OR4100161 | CWS | Molalla | 250 | Clackamas County |
| Pge Beaver Generating Station | OR4105246 | NTNCWS | Clatskanie | 30 | Columbia County |
| Pge Biglow Canyon | OR4195431 | NTNCWS | Wasco | 30 | Sherman County |
| Pge Faraday Dam | OR4193957 | NTNCWS | Estacada | 35 | Clackamas County |
| Pilot Rock, City Of | OR4100626 | CWS | Pilot Rock | 1,326 | Umatilla County |
| Pilot Travel Center #386 | OR4105963 | NTNCWS | Brownsville | 500 | Marion County |
| Pine Grove | 104121127 | NTNCWS | Chiloquin | 25 | Klamath County |
| Pine Grove Water Dist (Klamath) | OR4100437 | CWS | Klamath Falls | 180 | Klamath County |
| Pine Grove Water Dist (Wasco) | OR4101122 | CWS | Maupin | 140 | Wasco County |
| Pine Ridge Water Co Llc | OR4101467 | CWS | Grants Pass | 44 | Josephine County |
| Pinewood Mobile Manor | OR4100872 | CWS | The Dalles | 130 | Wasco County |
| Pioneer Mobile Home Park | OR4100142 | CWS | Boring | 400 | Clackamas County |
| Pioneer Park Co-Op Inc | OR4100784 | CWS | Salem | 54 | Polk County |
| Pioneer Villa | OR4191700 | NTNCWS | Halsey | 400 | Linn County |
| Pioneer Village Water Company | OR4101296 | CWS | Philomath | 80 | Benton County |
| Pisgah Public Market | OR4191865 | NTNCWS | Eugene | 700 | Lane County |
| Pleasant Hill Schools | OR4191851 | NTNCWS | Pleasant Hill | 1,200 | Lane County |
| Pleasant Home Water District | OR4100360 | CWS | Gresham | 1,510 | Clackamas County, Multnomah County |
| Pleasant Valley Elem Sd #55 | OR4191707 | NTNCWS | Sweet Home | 100 | Linn County |
| Pleasant Valley Elementary | OR4191947 | NTNCWS | Portland | 650 | Multnomah County |
| Pleasant Valley Water Co | OR4100884 | CWS | Tillamook | 936 | Tillamook County |
| Pnw Veg Co, Llc Dba Norpac | OR4194279 | NTNCWS | Salem | 40 | Marion County |
| Polehn Heights Water Assn | OR4105086 | CWS | Oregon City | 150 | Clackamas County |
| Ponderosa Pines Water Company | OR4100106 | CWS | La Pine | 900 | Deschutes County |
| Port Of Morrow | OR4101328 | NTNCWS | Boardman | 1,350 | Morrow County |
| Port Of Tillamook Bay | OR4101329 | CWS | Tillamook | 250 | Tillamook County |
| Port Orford, City Of | OR4100670 | CWS | Port Orford | 1,200 | Curry County |
| Porter Creek Mobile Home Park | OR4100715 | CWS | Tenmile | 35 | Douglas County |
| Portland Travel Center | OR4193593 | NTNCWS | Aurora | 400 | Marion County |
| Powell Butte Community Charter School | OR4193728 | NTNCWS | Prineville | 200 | Crook County |
| Power City Water Co-Op | OR4100375 | CWS | Umatilla | 70 | Umatilla County |
| Powers, City Of | OR4100672 | CWS | Powers | 712 | Coos County |
| Pp&L-Clearwater Village | OR4194454 | CWS | Idleyld Park | 60 | Douglas County |
| Pp&L-Toketee Village | OR4101012 | CWS | Idleyld Park | 50 | Douglas County |
| Prairie City | OR4100673 | CWS | Prairie City | 841 | Grant County |
| Prairie Crossing | OR4101551 | CWS | Bend | 66 | Deschutes County |
| Prairie Winds Of Junction City Llc | OR4100423 | CWS | Eugene | 60 | Lane County |
| Pratum Elementary | OR4193759 | NTNCWS | Silverton | 90 | Marion County |
| Prescott, City Of | OR4100692 | CWS | Rainier | 70 | Columbia County |
| Prineville Mobile Home Park | OR4101317 | CWS | Bend | 130 | Crook County |
| Production Metal Forming Inc | OR4195058 | NTNCWS | Klamath Falls | 25 | Klamath County |
| Prospect Charter School | OR4190546 | NTNCWS | Prospect | 290 | Jackson County |
| Prospect Village | OR4190670 | CWS | Bend | 175 | Jackson County |
| Providence Christian Academy | OR4191770 | NTNCWS | Cottage Grove | 100 | Lane County |
| Punkin Center School | OR4194311 | NTNCWS | Pendleton | 100 | Umatilla County |
| Quail Valley Park Improv Dist | OR4100683 | CWS | Prineville | 110 | Crook County |
| Quincy Water Association | OR4100196 | CWS | Clatskanie | 300 | Columbia County |
| Rainbow Ends Water System | OR4101350 | CWS | Hillsboro | 50 | Washington County |
| Rainbow Park Mhp | OR4101073 | CWS | Terrebonne | 30 | Lane County |
| Rainbow Rock Service Association | OR4101361 | CWS | Brookings | 80 | Curry County |
| Rainbow Rock Village Mhp | OR4101062 | CWS | Brookings | 115 | Curry County |
| Rainier Sd #13 | OR4193722 | NTNCWS | Rainier | 950 | Columbia County |
| Raintree Estates | OR4105548 | CWS | Corvallis | 50 | Benton County |
| Ralph Taylor Trailer Court | OR4101398 | CWS | Salem | 45 | Marion County |
| Ranchero Petite Improv Dist | OR4100139 | CWS | Boring | 40 | Clackamas County |
| Raw Advantage Processing Llc | OR4195257 | NTNCWS | Aumsville | 40 | Marion County |
| Red Hills Estates | OR4101502 | CWS | Dundee | 39 | Yamhill County |
| Redwood Terrace Assisted Living | OR4195017 | CWS | Grants Pass | 50 | Josephine County |
| Redwood Water Service Inc | OR4100020 | CWS | Albany | 125 | Linn County |
| Rees Training Center | OR4101136 | NTNCWS | Salem | 35 | Morrow County |
| Reserve Vineyards & Golf Club | OR4195014 | NTNCWS | Aloha | 300 | Washington County |
| Rexius - Coburg | OR4194800 | NTNCWS | Eugene | 28 | Lane County |
| Rhododendron Wtr Assoc | OR4100702 | CWS | Rhododendron | 980 | Clackamas County |
| Rice Hill Owners Association | OR4194108 | NTNCWS | Yoncalla | 80 | Douglas County |
| Rice Hill Rv Park | OR4195210 | CWS | Roseburg | 50 | Douglas County |
| Rice Hill West Subdivision | OR4106041 | CWS | Oakland | 55 | Douglas County |
| Richland, City Of | OR4100703 | CWS | Richland | 165 | Baker County |
| Rickreall Water Association | OR4100704 | CWS | Rickreall | 1,650 | Polk County |
| Riddle, City Of | OR4100706 | CWS | Riddle | 1,224 | Douglas County |
| Ridgewater Water System | OR4106203 | CWS | Klamath Falls | 80 | Klamath County |
| Ridgewood Dist Improv Co | OR4100229 | CWS | Corvallis | 90 | Benton County |
| Rieth Water District | OR4100617 | CWS | Pendleton | 150 | Umatilla County |
| Rim At Aspen Lakes | OR4101431 | CWS | Sisters | 31 | Deschutes County |
| Rimrock West Imprvmnt Dist | OR4101334 | CWS | Redmond | 150 | Deschutes County |
| Rink Creek Water District | OR4101402 | CWS | Coquille | 285 | Coos County |
| Rise Up Family Fellowship | OR4191649 | NTNCWS | Buxton | 41 | Washington County |
| Rising Sun Farms Inc | OR4195067 | NTNCWS | Phoenix | 40 | Jackson County |
| River Haven Mobile Home Estates | OR4100354 | CWS | Grants Pass | 140 | Josephine County |
| River Meadows Improvement Dist | OR4101232 | CWS | Bend | 432 | Deschutes County |
| River Point Farms Packing | OR4195457 | NTNCWS | Plymouth | 60 | Umatilla County |
| River Village Mhp | OR4105854 | CWS | Seattle | 40 | Malheur County |
| Riverbend Mobile Home Park | OR4101053 | CWS | Clackamas | 600 | Clackamas County |
| Riverbend Organic Farms | OR4195528 | NTNCWS | Jefferson | 38 | Linn County |
| Riverbend-Riverbank Community | OR4100458 | CWS | West Linn | 225 | Clackamas County |
| Riverfront Rv Park | OR4191531 | CWS | Grants Pass | 65 | Jackson County |
| Riverside High School | OR4194901 | NTNCWS | Tualatin | 300 | Clackamas County |
| Riverside Mobile Park | OR4100929 | CWS | Waldport | 32 | Lincoln County |
| Riverside Rv Park | OR4194601 | CWS | Sacramento | 200 | Clackamas County |
| Riverside Water District | OR4100632 | CWS | Sandy | 120 | Clackamas County |
| Riverstone Mobile Home Park | OR4100240 | CWS | Cottage Grove | 168 | Lane County |
| Riverview Christian Fellowship | OR4195619 | NTNCWS | Coos Bay | 164 | Coos County |
| Riverview Mfgd Home Court | OR4101145 | CWS | Damascus | 400 | Clackamas County |
| Riverview Trailer Park | OR4101129 | CWS | Kalama | 60 | Deschutes County |
| Riverwood Mhp Lane Co | OR4100994 | CWS | Eugene | 325 | Lane County |
| Riviera Mobile Park | OR4101104 | CWS | Rogue River | 150 | Josephine County |
| Robbins Nest Residential Park | OR4195304 | CWS | Portland | 27 | Coos County |
| Robinson Nursery Amity Ws | OR4195247 | NTNCWS | Amity | 70 | Yamhill County |
| Rock Creek Water District | OR4100337 | CWS | Grand Ronde | 300 | Polk County |
| Rock Of Ages Rest Home | OR4105157 | CWS | Mcminville | 97 | Yamhill County |
| Rockaway Beach, City Of | OR4100708 | CWS | Rockaway Beach | 1,533 | Tillamook County |
| Rocky Pointe Marina | OR4101251 | CWS | Portland | 125 | Multnomah County |
| Rogers Toyota | OR4195792 | NTNCWS | Hermiston | 75 | Umatilla County |
| Rogue Community College | OR4193940 | NTNCWS | Grants Pass | 2,400 | Josephine County |
| Rogue Lea Estates-North/South | OR4101405 | CWS | Grants Pass | 350 | Josephine County |
| Rogue River Campground | OR4191541 | CWS | Grants Pass | 60 | Jackson County |
| Rogue River Mobile Estates | OR4101067 | CWS | Grants Pass | 72 | Jackson County |
| Rogue River, City Of | OR4100712 | CWS | Rogue River | 2,345 | Jackson County |
| Rogue Riviera Estates | OR4106113 | CWS | Shady Cove | 39 | Jackson County |
| Rogue Valley Adventist School | OR4190722 | NTNCWS | Medford | 135 | Jackson County |
| Rolling Hills Church | OR4195052 | NTNCWS | Tualatin | 60 | Clackamas County |
| Rosboro Llc Vaughn | OR4101018 | NTNCWS | Veneta | 35 | Lane County |
| Roseburg Forest Prod - Dillard | OR4194300 | NTNCWS | Dillard | 1,000 | Douglas County |
| Roth Development | OR4100220 | CWS | Newberg | 27 | Washington County |
| Roth Water System | OR4195683 | NTNCWS | Aurora | 50 | Clackamas County |
| Round Lake Water Utilities | OR4100438 | CWS | Klamath Falls | 250 | Klamath County |
| Row River Valley Water Dist | OR4101515 | CWS | Dorena | 340 | Lane County |
| Rowena Dell Water System | OR4105372 | CWS | The Dalles | 30 | Hood River County, Wasco County |
| Roxy Ann Heights Hoa | OR4101543 | CWS | Medford | 30 | Jackson County |
| Royal Estates | OR4101119 | CWS | Salem | 160 | Marion County |
| Rsg Forest Products Inc | OR4190083 | NTNCWS | Molalla | 275 | Clackamas County |
| Rt 53 Water Inc | OR4105200 | CWS | Nehalem | 80 | Tillamook County |
| Rufus Public Works | OR4100723 | CWS | Rufus | 270 | Sherman County |
| Ryans Outpost | OR4100407 | CWS | Jacksonville | 65 | Jackson County |
| Sacajawea Mobile Home Park | OR4101375 | CWS | Hailey | 90 | Union County |
| Saginaw Park Water System | OR4100996 | CWS | Eugene | 60 | Lane County |
| Salem Mobile Estates/Shady Acres | OR4100779 | CWS | Salem | 150 | Marion County |
| Salmon River Rv Park | OR4192048 | CWS | Portland | 69 | Lincoln County |
| Salmon River Valley | OR4100606 | CWS | Otis | 75 | Lincoln County |
| Salmon Valley Water Company | OR4100936 | CWS | Welches | 1,500 | Clackamas County |
| Sams Valley Elem Sd #6 | OR4191509 | NTNCWS | Central Point | 360 | Jackson County |
| Sand-N-Wood Mobile Villa | OR4100573 | CWS | North Bend | 60 | Coos County |
| Sandy Boulevard Mobile Villa | OR4101262 | CWS | Fairview | 350 | Multnomah County |
| Sandy Ridge Headstart | OR4194992 | NTNCWS | Milwaukie | 60 | Clackamas County |
| Santiam Lumber #2 | OR4194926 | NTNCWS | Lebanon | 54 | Linn County |
| Santiam Meadows Community Ws | OR4105392 | CWS | Salem | 40 | Marion County |
| Santiam Village | OR4100476 | CWS | Lebanon | 150 | Linn County |
| Saunders Creek Hoc | OR4101201 | CWS | Gold Beach | 75 | Curry County |
| Sauvie Island Moorage | OR4101209 | CWS | Portland | 96 | Multnomah County |
| Sauvie Island School | OR4190590 | NTNCWS | Scappoose | 175 | Multnomah County |
| Scio Mobile Village | OR4100796 | CWS | Stayton | 40 | Linn County |
| Scio, City Of | OR4100795 | CWS | Scio | 900 | Linn County |
| Scofield Mobile Home Court | OR4101025 | CWS | Newport | 39 | Marion County |
| Scotts Mills, City Of | OR4100797 | CWS | Scotts Mills | 421 | Marion County |
| Scravel Hill Water Co-Op | OR4100018 | CWS | Albany | 300 | Linn County |
| Sea Crest | OR4101528 | CWS | Newberg | 72 | Lincoln County |
| Seavey Loop Water Company | OR4100289 | CWS | Newberg | 110 | Lane County |
| Selmet Inc/Rem Products Div | OR4194327 | NTNCWS | Albany | 430 | Linn County |
| Seneca, City Of | OR4100807 | CWS | Seneca | 200 | Grant County |
| Seven Oak Middle School | OR4191712 | NTNCWS | Lebanon | 722 | Linn County |
| Seventh Mountain Resort | OR4101058 | NTNCWS | Bend | 400 | Deschutes County |
| Shadow Hills Park Water Co-Op | OR4100419 | CWS | Junction City | 45 | Lane County |
| Shady Acres Mhp, Llc | OR4101031 | CWS | Milwaukie | 70 | Jackson County |
| Shady Acres Rv Park | OR4193797 | CWS | Cave Junction | 48 | Josephine County |
| Shady Cove Mhp | OR4101131 | CWS | Shady Cove | 140 | Jackson County |
| Shady Cove Middle Sd #9 | OR4191511 | NTNCWS | Eagle Point | 275 | Jackson County |
| Shady Rest Mobile Court | OR4101214 | CWS | Hermiston | 110 | Umatilla County |
| Shady Trails Rv Park | OR4191535 | CWS | Shady Cove | 60 | Jackson County |
| Shangri-La Water District | OR4100835 | CWS | Springfield | 200 | Lane County |
| Shaniko Water System | OR4105384 | CWS | Shaniko | 38 | Wasco County |
| Shelley Road-Crest Acres Wd | OR4101401 | CWS | Coquille | 430 | Coos County |
| Shenandoah Homeowners Inc | OR4100836 | CWS | Springfield | 84 | Lane County |
| Sherman County School | OR4193912 | NTNCWS | Moro | 240 | Sherman County |
| Shield Crest Condos | OR4101484 | CWS | Klamath Falls | 45 | Klamath County |
| Shield Crest Water Assn | OR4101500 | CWS | Klamath Falls | 65 | Klamath County |
| Shoun Crossroads | OR4105239 | CWS | Prineville | 41 | Crook County |
| Sidwalter | 104101101 | CWS | Warm Springs | 130 | Wasco County |
| Sigler Cove Marina | OR4101460 | CWS | Scappoose | 150 | Multnomah County |
| Siletz | 104101136 | CWS | Siletz | 475 | Lincoln County |
| Siletz, City Of | OR4100821 | CWS | Siletz | 1,235 | Lincoln County |
| Silver Crest School | OR4190587 | NTNCWS | Silverton | 158 | Marion County |
| Silver Spur Rv Park Llc | OR4195241 | CWS | Vancouver | 275 | Marion County |
| Silverton Mobile Estates | OR4100825 | CWS | Silverton | 45 | Marion County |
| Simnasho Schoolie | 104101102 | CWS | Warm Springs | 350 | |
| Sisters, City Of | OR4100826 | CWS | Sisters | 3,778 | Deschutes County |
| Sky Crest Heights Homeowners | OR4100344 | CWS | Grants Pass | 44 | Josephine County |
| Skylands Water Company | OR4100462 | CWS | Lake Oswego | 250 | Clackamas County |
| Skylane Farms | OR4194461 | NTNCWS | Woodburn | 32 | Marion County |
| Skyline Elementary Sd 1J | OR4191953 | NTNCWS | Portland | 250 | Multnomah County |
| Skyline View Dist Improvement | OR4100439 | CWS | Klamath Falls | 250 | Klamath County |
| Skyridge Hoa | OR4106047 | CWS | Eugene | 46 | Lane County |
| Skyview Acres Water Company | OR4100786 | CWS | Sandy | 200 | Clackamas County |
| Sleepy Hollow Water District | OR4100629 | CWS | Sandy | 135 | Clackamas County |
| Smgv/Widgi Creek | OR4101448 | CWS | Portland | 300 | Deschutes County |
| Smith Rock Mobile Estates | OR4100863 | CWS | Bend | 60 | Deschutes County |
| Sno-Cap Water System | OR4100827 | CWS | Sisters | 90 | Deschutes County |
| Sodaville, City Of | OR4101231 | CWS | Lebanon | 320 | Linn County |
| Solid Ground Landscape | OR4195742 | NTNCWS | Talent | 32 | Jackson County |
| Soter Vineyards | OR4195701 | NTNCWS | Carlton | 80 | Yamhill County |
| South Coast Water Company | OR4100302 | CWS | Newberg | 200 | Lane County |
| South Fork Forest Camp | OR4101054 | CWS | Tillamook | 200 | Tillamook County |
| South Fork Water Board | OR4100591 | CWS | Oregon City | 0 | Clackamas County |
| South Hills Water System | OR4100306 | CWS | Hillsboro | 250 | Washington County |
| South Prairie Water Assn | OR4100892 | CWS | Tillamook | 440 | Tillamook County |
| South Umpqua Water Association | OR4100705 | CWS | Riddle | 575 | Douglas County |
| South Yamhill Water District | OR4101323 | CWS | Yamhill | 40 | Yamhill County |
| Southend Corporate Airpark Coa | OR4195547 | NTNCWS | Aurora | 220 | Marion County |
| Southlake Church Ws | OR4195541 | NTNCWS | West Linn | 150 | Clackamas County |
| Southview Improvement Dist | OR4106049 | CWS | Eugene | 35 | Lane County |
| Southwood Park Water District | OR4100638 | CWS | Newberg | 900 | Clackamas County |
| Spar Tree Mhp | OR4101264 | CWS | Happy Valley | 26 | Clackamas County |
| Sportsmans Paradise Motel/Tc | OR4194151 | CWS | Keno | 52 | Klamath County |
| Sportsmans Park Water Assn | OR4100910 | CWS | Tygh Valley | 150 | Wasco County |
| Sprague River Water Assn | OR4100831 | CWS | Sprague River | 60 | Klamath County |
| Spray, City Of | OR4100832 | CWS | Spray | 139 | Wheeler County |
| Springbrook Water Association | OR4100561 | CWS | Newberg | 38 | Yamhill County |
| Springwater Academy | OR4194043 | NTNCWS | Oregon City | 175 | Clackamas County |
| Springwater Estates | OR4100282 | CWS | Estacada | 130 | Clackamas County |
| St Francis Of Assisi School | OR4191596 | NTNCWS | Banks | 200 | Washington County |
| St Paul, City Of | OR4100727 | CWS | St Paul | 434 | Marion County |
| St. Cousair Inc. | OR4195572 | NTNCWS | Newberg | 35 | Yamhill County |
| Stafford Elementary | OR4193701 | NTNCWS | Tualatin | 600 | Clackamas County |
| Staffordshire Water System | OR4100290 | CWS | Eugene | 150 | Lane County |
| Stahlbush Island Farms | OR4105819 | NTNCWS | Corvallis | 200 | Benton County, Linn County |
| Stanfield Hutterian | OR4101507 | CWS | Stanfield | 80 | Umatilla County |
| Stanfield, City Of | OR4100842 | CWS | Stanfield | 2,115 | Umatilla County |
| Star Satellite Improv Dist | OR4100077 | CWS | Banks | 400 | Washington County |
| Starlite Mobile Village | OR4100781 | CWS | Eugene | 250 | Marion County |
| Stewarts Addition | OR4100619 | CWS | Pendleton | 50 | Umatilla County |
| Storlie Water Company | OR4101386 | CWS | Bend | 50 | Deschutes County |
| Student Transportation Of America | OR4194141 | NTNCWS | Philomath | 53 | Benton County |
| Sublimity, City Of | OR4100844 | CWS | Sublimity | 3,140 | Marion County |
| Suburban Christian Church | OR4194741 | NTNCWS | Corvallis | 100 | Benton County |
| Sumner Water Corporation | OR4100209 | CWS | Coos Bay | 50 | Coos County |
| Sumpter, City Of | OR4100845 | CWS | Sumpter | 208 | Baker County |
| Sun Mountain Water System Llc | OR4100111 | CWS | Bend | 740 | Deschutes County |
| Sunburst Acres Subdivision | OR4101438 | CWS | Shady Cove | 26 | Jackson County |
| Sundowner Mobile Home Park | OR4101344 | CWS | La Grande | 160 | Union County |
| Sunny Acres Water District | OR4101163 | CWS | Newberg | 130 | Yamhill County |
| Sunny Slope Mobile Ranch | OR4100335 | CWS | Jacksonville | 25 | Jackson County |
| Sunny Wolf Charter Preschool | OR4195068 | NTNCWS | Wolf Creek | 26 | Josephine County |
| Sunny Wolf Charter School | OR4191900 | NTNCWS | Wolf Creek | 115 | Josephine County |
| Sunnycrest Meadows Ws | OR4105317 | CWS | Newberg | 29 | Yamhill County |
| Sunnyview Mobile Home Park | OR4100782 | CWS | Salem | 100 | Marion County |
| Sunridge Estates Lower | OR4105567 | CWS | Central Point | 71 | Jackson County |
| Sunridge Estates Upper | OR4101555 | CWS | Central Point | 28 | Jackson County |
| Sunridge Water Inc | OR4105798 | CWS | Vancouver | 200 | Umatilla County |
| Sunset Acres Water Co-Op Inc | OR4100114 | CWS | Bend | 70 | Deschutes County |
| Sunset Hills Domestic Water Association | OR4105258 | CWS | Prineville | 41 | Crook County |
| Sunset Lake Rv Park | OR4100933 | CWS | Redmond | 170 | Clatsop County |
| Sunset Village Mhp | OR4101070 | CWS | Salem | 120 | Marion County |
| Sunset Water System Inc | OR4100069 | CWS | Aurora | 140 | Marion County |
| Sunshine Plaza | OR4191567 | NTNCWS | Gold Hill | 200 | Jackson County |
| Sunshine Village | OR4100406 | CWS | Jacksonville | 95 | Jackson County |
| Sunstone - Bear Creek | OR4100482 | CWS | Newberg | 275 | Lincoln County |
| Sunstone - Boulder Creek | OR4100722 | CWS | Newberg | 350 | Lincoln County |
| Surfwood Villa Hoa | OR4100757 | CWS | Salem | 200 | Marion County |
| Surprise Valley Rv Park | OR4100168 | CWS | Grants Pass | 45 | Douglas County |
| Sw Lincoln Co Water Pud | OR4100925 | CWS | Waldport | 3,000 | Lincoln County |
| Swanson Group Llc Plywood #3 | OR4194521 | NTNCWS | Glendale | 150 | Douglas County |
| Swanson Group Llc Veneer #2 | OR4194520 | NTNCWS | Glendale | 50 | Douglas County |
| Swedetown Water Assoc | OR4101495 | CWS | Clatskanie | 40 | Columbia County |
| Sweet Home Charter School | OR4191692 | NTNCWS | Sweet Home | 165 | Linn County |
| Swiss Krono Or Llc | OR4193995 | NTNCWS | Klamath Falls | 260 | Klamath County |
| Swisshome Village | OR4100854 | CWS | Cottage Grove | 24 | Lane County |
| Table Rock Mobile Estates (North&South) | OR4101052 | CWS | Eagle Point | 150 | Jackson County |
| Tamarack Mobile Home Park | OR4101310 | CWS | Scappoose | 80 | Columbia County |
| Tangent Business Park | OR4195037 | NTNCWS | Las Vegas | 50 | Linn County |
| Tangent Elementary | OR4191716 | NTNCWS | Albany | 159 | Linn County |
| Taylors Grove Water Works | OR4105782 | CWS | Lyons | 28 | Marion County |
| Taylors Landing Rv Park | OR4192063 | CWS | San Fransisco | 48 | Lincoln County |
| Tc Chevy | OR4195627 | NTNCWS | Ashland | 49 | Jackson County |
| Teen Challenge | OR4193741 | NTNCWS | Shedd | 53 | Linn County |
| Terrace Mobile Plaza | OR4100193 | CWS | Prineville | 152 | Crook County |
| Terrand Mobile Terrace | OR4101157 | CWS | Happy Valley | 71 | Multnomah County |
| Terrebonne Domestic Water District | OR4100860 | CWS | Terrebonne | 1,400 | Deschutes County |
| Territorial Elementary Sd 69 | OR4191872 | NTNCWS | Junction City | 200 | Lane County |
| The Marylhurst School | OR4105094 | NTNCWS | Oregon City | 140 | Clackamas County |
| Three Rivers Charter School | OR4195549 | NTNCWS | West Linn | 125 | Clackamas County |
| Three Rivers School District Office | OR4191916 | NTNCWS | Grants Pass | 60 | Josephine County |
| Thurston Oaks Mhp | OR4100841 | CWS | Portland | 38 | Lane County |
| Tideland Water Co-Op | OR4106154 | CWS | Nehalem | 30 | Tillamook County |
| Tierra Del Mar Water Co | OR4100610 | CWS | Cloverdale | 80 | Tillamook County |
| Tierra Linda Estates | OR4101044 | CWS | Everson | 450 | Umatilla County |
| Tillicum Park Llc | OR4100988 | CWS | Eugene | 34 | Lane County |
| Timber Water Association | OR4100898 | CWS | Timber | 180 | Washington County |
| Timberlab Laminators Llc | OR4191874 | NTNCWS | Swisshome | 50 | Lane County |
| Timberline Baptist Church | OR4195378 | NTNCWS | St Helens | 150 | Washington County |
| Timberline Rim Water Co Inc | OR4100639 | CWS | Molalla | 800 | Clackamas County |
| Tivoli Mobile Home Park | OR4101003 | CWS | Eugene | 94 | Lane County |
| Tollgate Water Company | OR4100087 | CWS | Sisters | 800 | Deschutes County |
| Tone Water District | OR4101035 | CWS | Tillamook | 75 | Tillamook County |
| Tooley Water District | OR4100911 | CWS | The Dalles | 97 | Wasco County |
| Totem Village Mhp | OR4101171 | CWS | Portland | 70 | Clackamas County |
| Townsend Farms Fairview | OR4194866 | NTNCWS | Fairview | 250 | Multnomah County |
| Trailer Park Village | OR4100730 | CWS | Salem | 105 | Marion County |
| Tree Top | OR4194441 | NTNCWS | Woodburn | 45 | Marion County |
| Tri-County Industrial Park #1 | OR4193921 | NTNCWS | Tualatin | 100 | Washington County |
| Tri-County Industrial Park #2 | OR4193922 | NTNCWS | Tualatin | 45 | Washington County |
| Triangle Lake High/Elem Sd 90 | OR4190556 | NTNCWS | Blachly | 235 | Lane County |
| Trollers Cove Water Assn | OR4105108 | CWS | Tidewater | 32 | Lincoln County |
| Turner, City Of | OR4100907 | CWS | Turner | 2,866 | Marion County |
| Twin Cedars Mhp | OR4101514 | CWS | Lebanon | 200 | Linn County |
| Twin Island Community | OR4100265 | CWS | Tualatin | 70 | Clackamas County |
| Twin Oaks Elementary Sd 4J | OR4191879 | NTNCWS | Eugene | 170 | Lane County |
| Tygh Valley Water District | OR4100912 | CWS | Tygh Valley | 218 | Wasco County |
| Ukiah, City Of | OR4100913 | CWS | Ukiah | 235 | Umatilla County |
| Umpqua Ranch Coop | OR4100714 | CWS | Idleyld | 161 | Douglas County |
| Union Gap Water District | OR4101371 | CWS | Oakland | 150 | Douglas County |
| Union Pacific Rr-Hinkle Yard | OR4193426 | NTNCWS | Omaha | 180 | Umatilla County |
| Union School | OR4193736 | NTNCWS | Lakeview | 43 | Lake County |
| Union, City Of | OR4100915 | CWS | Union | 2,162 | Union County |
| United Parcel Service | OR4194874 | NTNCWS | Portland | 86 | Linn County |
| Unity, City Of | OR4101450 | CWS | Unity | 40 | Baker County |
| Ups-Hermiston | OR4105955 | NTNCWS | Seattle | 100 | Umatilla County |
| Us Silica | OR4195537 | NTNCWS | Vale | 69 | Malheur County |
| Usace Bonneville Dam | OR4101180 | NTNCWS | Cascade Locks | 109 | Multnomah County |
| Usace Dalles/Jd-The Dalles Dam | OR4194200 | NTNCWS | The Dalles | 115 | Wasco County |
| Usace John Day Dam | OR4194203 | NTNCWS | Rufus | 120 | Sherman County |
| Usace Lookout Pt-Ph/Dexter | OR4195128 | NTNCWS | Eugene | 43 | Lane County |
| Usace Mcnary Dam | OR4190178 | NTNCWS | Umatilla | 120 | Umatilla County |
| Usda Ag Research Station | OR4195021 | NTNCWS | Adams | 30 | Umatilla County |
| Usfs Detroit Ranger Station | OR4101224 | NTNCWS | Mill City | 50 | Marion County |
| Usfs Mckenzie River Ranger Station | OR4192804 | NTNCWS | Mckenzie Bridge | 63 | Lane County |
| Usfs Mckenzie Work Center | OR4101134 | NTNCWS | Mckenzie Bridge | 40 | Lane County |
| Usfs Middle Fork Rs | OR4192813 | NTNCWS | Westfir | 120 | Lane County |
| Usfs Prospect Ranger Station | OR4101087 | NTNCWS | Grants Pass | 75 | Jackson County |
| Usfs Tiller Ranger Station | OR4101092 | NTNCWS | Roseburg | 34 | Douglas County |
| Usfs Timber Lake Jcc | OR4101093 | NTNCWS | Estacada | 200 | Clackamas County |
| Usfs Timberline Lodge 1 | OR4192641 | NTNCWS | Molalla | 1,500 | Clackamas County |
| Usfs Toketee Ranger Station | OR4101094 | CWS | Roseburg | 150 | Douglas County |
| Usfs Union Creek Complex | OR4192683 | NTNCWS | Grants Pass | 1,451 | Jackson County |
| Usfs Wolf Creek Job Corps | OR4101095 | CWS | Roseburg | 291 | Douglas County |
| Vale, City Of | OR4100917 | CWS | Vale | 1,837 | Malheur County |
| Valley Court Apartments | OR4101276 | CWS | Grants Pass | 34 | Josephine County |
| Valley Inquiry Charter School | OR4193764 | NTNCWS | Salem | 188 | Marion County |
| Valley View Water Co-Op | OR4101339 | CWS | Yamhill | 99 | Yamhill County |
| Valley View Water District | OR4100661 | CWS | Newberg | 1,034 | Multnomah County |
| Valley Vista Water Improv Dist | OR4101426 | CWS | Central Point | 50 | Jackson County |
| Veneta Sda Church | OR4195296 | NTNCWS | Veneta | 49 | Lane County |
| Vernonia, City Of | OR4100922 | CWS | Vernonia | 2,100 | Columbia County |
| Victor Point Elementary | OR4193769 | NTNCWS | Silverton | 140 | Marion County |
| Victoria Court Subdivision | OR4105949 | CWS | Central Point | 70 | Jackson County |
| Vida-Lea Community Cooperative | OR4101004 | CWS | Leaburg | 45 | Lane County |
| View Point Trailer Court | OR4190269 | CWS | The Dalles | 160 | Wasco County |
| Villadom Mobile Home Park | OR4100525 | CWS | Lafayette | 115 | Umatilla County |
| Village At Seavey Loop | OR4100285 | CWS | Eugene | 150 | Lane County |
| Village At Valley View | OR4195560 | CWS | Ashland | 110 | Jackson County |
| Vincent Water Company | OR4100521 | CWS | Milton-Freewater | 90 | Umatilla County |
| Vineyard Mountain Water | OR4100231 | CWS | Corvallis | 325 | Benton County |
| Visitation Church And School | OR4190609 | NTNCWS | Forest Grove | 450 | Washington County |
| Vista Home Park | OR4101099 | CWS | Hermiston | 300 | Umatilla County |
| Waldport, City Of | OR4100926 | CWS | Waldport | 2,300 | Lincoln County |
| Wallace Acres Water Company | OR4100121 | CWS | Bend | 80 | Deschutes County |
| Wallowa Lake Co Service Dist | OR4101420 | CWS | Enterprise | 350 | Wallowa County |
| Wallowa, City Of | OR4100930 | CWS | Wallowa | 840 | Wallowa County |
| Walnut Mobile Home Park | OR4101223 | CWS | Wilsonville | 200 | Clackamas County |
| Walterville Elem Sd 19 | OR4191884 | NTNCWS | Springfield | 194 | Lane County |
| Wamic Water Association | OR4100931 | CWS | Wamic | 130 | Wasco County |
| Wapato Moorage Association | OR4101510 | CWS | Scappoose | 74 | Multnomah County |
| Warren Water Association | OR4100726 | CWS | St Helens | 2,050 | Columbia County |
| Wasco, City Of | OR4100935 | CWS | Wasco | 460 | Sherman County |
| Water Wonderland Improv Dist 1 | OR4101109 | CWS | Bend | 550 | Deschutes County |
| Water Wonderland Improv Dist 2 | OR4101181 | CWS | Bend | 1,800 | Deschutes County |
| Watseco-Barview Water District | OR4101173 | CWS | Garibaldi | 450 | Tillamook County |
| Watsonville Water System | OR4105302 | CWS | Coos Bay | 27 | Coos County |
| Wauna Water District | OR4100951 | CWS | Westport | 188 | Clatsop County |
| Weiss Estates Water System | OR4105581 | CWS | Bandon | 36 | Coos County |
| Welches Water Company | OR4100937 | CWS | Sandy | 60 | Clackamas County |
| Weldon Mobile Home Park | OR4101143 | CWS | Medford | 108 | Jackson County |
| Weslinn Water Company | OR4100230 | CWS | Brownsville | 200 | Linn County |
| West Dutton Condo Association | OR4195598 | NTNCWS | White City | 28 | Jackson County |
| West Gregory Mhp South | OR4101548 | CWS | Medford | 30 | Jackson County |
| West Hills Water Company | OR4100895 | CWS | Tillamook | 299 | Tillamook County |
| West Laurel Acres Water Co | OR4100221 | CWS | Cornelius | 65 | Washington County |
| West Linn/Wilsonville Sd | OR4194063 | NTNCWS | Tualatin | 40 | Clackamas County |
| West Union Elem Sd 1 | OR4193774 | NTNCWS | Hillsboro | 350 | Washington County |
| West Yamhill Water Company | OR4101324 | CWS | Yamhill | 56 | Yamhill County |
| Western Christian School | OR4190582 | NTNCWS | Salem | 540 | Polk County |
| Western Heights Water Company | OR4101358 | CWS | Baker City | 90 | Baker County |
| Western Hills Mh Estates | OR4101172 | CWS | Rainier | 375 | Columbia County |
| Western Wagon Village | OR4100071 | CWS | Aurora | 112 | Marion County |
| Westfir, City Of | OR4100939 | CWS | Westfir | 268 | Lane County |
| Westland Water Association | OR4101474 | CWS | Clatskanie | 25 | Columbia County |
| Weston, City Of | OR4100949 | CWS | Weston | 714 | Umatilla County |
| Westport Heights | OR4100195 | CWS | Westport | 90 | Clatsop County |
| Westport Water Association | OR4100950 | CWS | Westport | 550 | Clatsop County |
| Westridge Subdivision | OR4105998 | CWS | Prineville | 78 | Crook County |
| Westridge Water District | OR4100941 | CWS | Westfir | 78 | Lane County |
| Westview Mobile Estates | OR4100222 | CWS | Eugene | 250 | Washington County |
| Whaleshead Beach Resort, Llc | OR4194489 | CWS | Brookings | 108 | Curry County |
| Wheeler, City Of | OR4100952 | CWS | Wheeler | 400 | Tillamook County |
| Whispering Pines Mobile Lodge | OR4100223 | CWS | Corvallis | 90 | Linn County |
| Whitehorse Rv Village | OR4191919 | CWS | Grants Pass | 72 | Josephine County |
| Wickiup Water District | OR4100063 | CWS | Astoria | 1,630 | Clatsop County |
| Willamettans, The | OR4191894 | CWS | Eugene | 60 | Lane County |
| Willamette Egg Farms - Canby | OR4194451 | NTNCWS | Canby | 80 | Clackamas County |
| Willamette Hazelnut Inc | OR4195718 | NTNCWS | Newberg | 55 | Yamhill County |
| Willamette Valley Vineyards | OR4195137 | NTNCWS | Turner | 400 | Marion County |
| Willamette Water Company | OR4101388 | CWS | Veneta | 468 | Lane County |
| Willamina, City Of | OR4100953 | CWS | Willamina | 2,239 | Polk County, Yamhill County |
| Williams Elementary | OR4191899 | NTNCWS | Grants Pass | 120 | Josephine County |
| Willow Dale Water District | OR4100058 | CWS | Astoria | 310 | Clatsop County |
| Willow Estates Mobile Home Pk | OR4101354 | CWS | Grants Pass | 250 | Josephine County |
| Willow Glen Subdivision | OR4101437 | CWS | Grants Pass | 60 | Josephine County |
| Willowcreek Elem Sd #84 | OR4193750 | NTNCWS | Vale | 80 | Malheur County |
| Winchester Ridge | OR4101565 | CWS | Riddle | 50 | Douglas County |
| Winterview Estates | OR4100349 | CWS | Grants Pass | 50 | Josephine County |
| Wisemans Mobile Court | OR4100431 | CWS | Trinidad | 114 | Klamath County |
| Wolsborn Farms Water District | OR4100381 | CWS | Hillsboro | 92 | Washington County |
| Woodburn Mobile Estates | OR4100964 | CWS | Portland | 70 | Marion County |
| Woodcastle | OR4194317 | NTNCWS | Corvallis | 40 | Linn County |
| Woodland Mobile Home Park | OR4100224 | CWS | Corvallis | 91 | Linn County |
| Workman Air Park #3 | OR4101488 | CWS | Canby | 75 | Clackamas County |
| Wunder Mobile Park | OR4100791 | CWS | Molalla | 100 | Clackamas County |
| Yachats, City Of | OR4100966 | CWS | Yachats | 1,006 | Lincoln County |
| Yamhill, City Of | OR4100968 | CWS | Yamhill | 1,199 | Yamhill County |
| Yoncalla, City Of | OR4100958 | CWS | Yoncalla | 1,050 | Douglas County |
| Young Life | OR4101246 | CWS | Antelope | 852 | Wasco County |
| Youngs River Lewis & Clark Wd | OR4100062 | CWS | Astoria | 2,580 | Clatsop County |
| Youth With A Mission | OR4101248 | NTNCWS | Molalla | 100 | Marion County |
| Zig Zag Village Water System | OR4101159 | CWS | Molalla | 80 | Clackamas County |
| Zig Zag Water Co-Op | OR4101241 | CWS | Welches | 60 | Clackamas County |
| Zoomtown Rv Park | OR4195699 | CWS | Medford | 46 | Josephine County |