County · Oregon
Clackamas County, Oregon: drinking water records
Explore EPA records for 87 community water systems across 24 ZIP codes in Clackamas County, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 15 of the 87 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 87 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Oak Lodge Water Services OR4101512 | 30,000 | 120 | 0 | 1 | 2.7 ppbbelow the action level |
| Sandy, City of OR4100789 | 12,991 | 300 | 0 | 10 | 13 ppbbelow the action level |
| Gladstone, City of OR4100321 | 12,121 | 120 | 0 | 8 | 3.3 ppbbelow the action level |
| Estacada, City of OR4100279 | 5,750 | 120 | 1 | 2 | 2.1 ppbbelow the action level |
| Sunrise Water Authority OR4100635 | 50,003 | 480 | 1 | 0 | 3 ppbbelow the action level |
| Lake Oswego Municipal Water OR4100457 | 40,000 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Oregon City OR4101511 | 33,940 | 120 | 0 | 0 | 1.8 ppbbelow the action level |
| Clackamas River Water OR4100187 | 29,918 | 120 | 0 | 0 | 1.7 ppbbelow the action level |
| West Linn, City of OR4100944 | 28,000 | 120 | 0 | 0 | 1.8 ppbbelow the action level |
| Wilsonville, City of OR4100954 | 25,915 | 120 | 0 | 0 | 7.6 ppbbelow the action level |
| Milwaukie, City of OR4100528 | 20,946 | 180 | 1 | 0 | 0 ppbbelow the action level |
| Clackamas River Water - Clairmont OR4100594 | 19,928 | 120 | 0 | 0 | 2.0 ppbbelow the action level |
| Canby Utility OR4100157 | 18,754 | 120 | 0 | 0 | 2.1 ppbbelow the action level |
| Molalla, City of OR4100534 | 10,298 | 120 | 1 | 0 | 1.3 ppbbelow the action level |
| Rivergrove Water District OR4100461 | 4,000 | 180 | 0 | 0 | 2.7 ppbbelow the action level |
| Boring Water District No 24 OR4100135 | 2,500 | 0 | 0 | 1 | 1.2 ppbbelow the action level |
| Colton Water District OR4100202 | 1,500 | 0 | 0 | 7 | 1.6 ppbbelow the action level |
| Rhododendron Wtr Assoc OR4100702 | 980 | 0 | 0 | 3 | 4.1 ppbbelow the action level |
| Southwood Park Water District OR4100638 | 900 | 0 | 0 | 1 | 0.2 ppbbelow the action level |
| Timberline Rim Water Co INC OR4100639 | 800 | 0 | 0 | 1 | 6.1 ppbbelow the action level |
| Alder Creek Barlow Water Dist OR4100630 | 300 | 0 | 0 | 3 | 0.4 ppbbelow the action level |
| Canby Regency OR4100163 | 265 | 0 | 0 | 4 | 1.3 ppbbelow the action level |
| Petes Mountain Water Co OR4100161 | 250 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Mt Hood RV Village OR4194548 | 200 | 0 | 0 | 1 | 1.3 ppbbelow the action level |
| Riverside RV Park OR4194601 | 200 | 0 | 0 | 1 | 1.3 ppbbelow the action level |
| Skyview Acres Water Company OR4100786 | 200 | 0 | 0 | 45 | 7 ppbbelow the action level |
| Estacada Mobile Village OR4101252 | 150 | 0 | 0 | 1 | 1.4 ppbbelow the action level |
| Polehn Heights Water Assn OR4105086 | 150 | 0 | 0 | 2 | 0.7 ppbbelow the action level |
| Carver Mobile Ranch OR4100189 | 110 | 0 | 0 | 2 | 74 ppbat or above the action level |
| Brightwood Water Works OR4100143 | 100 | 0 | 0 | 1 | 3 ppbbelow the action level |
| Clackamas River RV Park OR4194761 | 100 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Wunder Mobile Park OR4100791 | 100 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Currinsville Mobile Home Park OR4100266 | 90 | 0 | 0 | 1 | 2.5 ppbbelow the action level |
| Lark Meadows Association OR4100159 | 80 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Zig Zag Village Water System OR4101159 | 80 | 0 | 0 | 1 | 3.4 ppbbelow the action level |
| Workman Air Park #3 OR4101488 | 75 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Big Foot MHP OR4101461 | 60 | 0 | 0 | 1 | 4.9 ppbbelow the action level |
| Cedarhurst Improvement Club OR4100280 | 60 | 0 | 0 | 3 | 1.7 ppbbelow the action level |
| Welches Water Company OR4100937 | 60 | 0 | 0 | 2 | 1.4 ppbbelow the action level |
| Hideaway Hills Water Company OR4100787 | 45 | 0 | 0 | 1 | 5.2 ppbbelow the action level |
| Spar Tree MHP OR4101264 | 26 | 0 | 0 | 1 | 3.6 ppbbelow the action level |
| North Clackamas County Wc OR4100580 | 0 | 0 | 0 | 1 | 9 ppbbelow the action level |
| Lake Grove Water District OR4100460 | 3,100 | 0 | 0 | 0 | 4.2 ppbbelow the action level |
| Salmon Valley Water Company OR4100936 | 1,500 | 0 | 0 | 0 | 5.7 ppbbelow the action level |
| Mulino Water District OR4100547 | 700 | 0 | 0 | 0 | 5 ppbbelow the action level |
| Riverbend Mobile Home Park OR4101053 | 600 | 0 | 0 | 0 | 4.2 ppbbelow the action level |
| Big Valley Woods Water Corp OR4101068 | 550 | 0 | 0 | 0 | 10 ppbbelow the action level |
| Pioneer Mobile Home Park OR4100142 | 400 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Riverview Mfgd Home Court OR4101145 | 400 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Glenmorrie Cooperative Assn OR4100459 | 310 | 0 | 0 | 0 | 3.6 ppbbelow the action level |
| Eagle Crest Mobile Home Park OR4101222 | 300 | 0 | 0 | 0 | 12.2 ppbbelow the action level |
| Kelso Water Assn OR4100134 | 300 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Eastmont Water Company OR4100138 | 250 | 0 | 0 | 0 | 3.4 ppbbelow the action level |
| Skylands Water Company OR4100462 | 250 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Riverbend-Riverbank Community OR4100458 | 225 | 0 | 0 | 0 | 6 ppbbelow the action level |
| Government Camp Water System OR4100336 | 200 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Walnut Mobile Home Park OR4101223 | 200 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Barlow Trail Estates OR4100140 | 180 | 0 | 0 | 0 | 3.3 ppbbelow the action level |
| Excalibur Village OR4100599 | 180 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Hiland Wc - Shadow Wood OR4100947 | 175 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Mountain Air Water Assoc OR4100144 | 170 | 0 | 0 | 0 | 8 ppbbelow the action level |
| Forest Haven Subdivision OR4101150 | 165 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Country Club Water District OR4100628 | 150 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Kingswood Heights Water Co-Op OR4100358 | 138 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Barlow, City of OR4100078 | 135 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Sleepy Hollow Water District OR4100629 | 135 | 0 | 0 | 0 | 0.2 ppbbelow the action level |
| Springwater Estates OR4100282 | 130 | 0 | 0 | 0 | 1.9 ppbbelow the action level |
| Riverside Water District OR4100632 | 120 | 0 | 0 | 0 | 10 ppbbelow the action level |
| Mossy Brae Water District OR4100945 | 100 | 0 | 0 | 0 | 5 ppbbelow the action level |
| Mountain View Co-Op OR4101125 | 95 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Dietz Air Park Water System OR4100158 | 85 | 0 | 0 | 0 | 2 ppbbelow the action level |
| Orient Drive Mobile Estates OR4100141 | 83 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Steeves Mobile City OR4101177 | 80 | 0 | 0 | 0 | 1.6 ppbbelow the action level |
| Ashdown Wood Water Company OR4101153 | 75 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Forest Park Mobile Village OR4101207 | 75 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Paradise Community Assoc OR4100264 | 75 | 0 | 0 | 0 | 0.1 ppbbelow the action level |
| Totem Village MHP OR4101171 | 70 | 0 | 0 | 0 | 1.8 ppbbelow the action level |
| Twin Island Community OR4100265 | 70 | 0 | 0 | 0 | 2.5 ppbbelow the action level |
| Gnr Water District OR4101050 | 60 | 0 | 0 | 0 | 5.6 ppbbelow the action level |
| Highland View Mobile Home Park OR4101065 | 60 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Zig Zag Water Co-Op OR4101241 | 60 | 0 | 0 | 0 | 3 ppbbelow the action level |
| North Brightwood Improv Assn OR4105395 | 50 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Ranchero Petite Improv Dist OR4100139 | 40 | 0 | 0 | 0 | 9 ppbbelow the action level |
| Eagle Creek Mobile Estates OR4101419 | 35 | 0 | 0 | 0 | 3.9 ppbbelow the action level |
| Mt Shadow MHP OR4105290 | 30 | 0 | 0 | 0 | 8.6 ppbbelow the action level |
| South Fork Water Board OR4100591 | 0 | 0 | 0 | 0 | 27 ppbat or above the action level |
| Lake Oswego - Tigard Water Supply OR4101542 | 0 | 0 | 0 | 0 | not reported |
Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. 2 systems in this table are at or above it. What an action level means
USGS · Monitoring stations
The water, more recently.
Available station readings in Clackamas County, Oregon. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Clackamas County
24ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Beavercreek
- Boring
- Canby
- Damascus
- Estacada
- Gladstone
- Government Camp
- Happy Valley
- Lake Oswego
- Milwaukie
- Molalla
- Mount Hood Villages
- Mulino
- Oak Grove
- Oregon City
- Rhododendron
- West Linn
- Wilsonville
View ZIP areas and understand coverage
- 97004Beavercreek
- 97009Boring
- 97011Mount Hood Villages
- 97013Canby
- 97015Happy Valley
- 97017
- 97022
- 97023Estacada
- 97027Gladstone
- 97028Government Camp
- 97034Lake Oswego
- 97035Lake Oswego
- 97038Molalla
- 97042Mulino
- 97045Oregon City
- 97049Rhododendron
- 97055Mount Hood Villages
- 97067Mount Hood Villages
- 97068West Linn
- 97070Wilsonville
- 97086Happy Valley
- 97089Damascus
- 97222Milwaukie
- 97267Oak Grove
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.