Clackamas, OR
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Clackamas in Oregon · Population: 422,308
TRI sites such as Pcc Structurals Lpc Titanium Business Ops; Oregon Tool Inc.; Miles Fiberglass & Composites Inc.; SDWIS systems such as SUNRISE WATER AUTHORITY; LAKE OSWEGO MUNICIPAL WATER; OREGON CITY; NPL sites such as Northwest Pipe & Casing/Hall Process Co anchor Clackamas, OR's EPA extract. Derived burden score 62/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Clackamas include LAKE OSWEGO MUNICIPAL WATER; OAK LODGE WATER SERVICES; CLACKAMAS RIVER WATER - CLAIRMONT, while Pcc Structurals Lpc Titanium Business Ops leads reported TRI pounds among local Form R filers. AQS median AQI 30 / peak 127 in 2024.
Burden score 62/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Clackamas -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Clackamas, OR: EPA TRI 2023 reporting year
Same facilities, both years
+30.6%
24 facilities that filed in 2022 and 2023
Whole inventory
+32.2%
671.9 thousand lb → 887.9 thousand lb, every facility that filed
Between the two reporting years, 4 facilities filed for the first time and 3 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Clackamas, OR's total reported releases rose from 671.9 thousand lb in 2022 to 877.6 thousand lb in 2023, based on EPA TRI filings.
- Clackamas, OR's off-site transfers rose from 593.9 thousand lb in 2022 to 818.2 thousand lb in 2023, based on EPA TRI filings.
- Clackamas, OR's water releases fell from 76 lb in 2022 to 51 lb in 2023, based on EPA TRI filings.
- Clackamas, OR's air releases fell from 77.9 thousand lb in 2022 to 59.3 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 325 (89%) | 34 | 6 | 127 |
| 2023 | 304 (83%) | 57 | 4 | 125 |
| 2022 | 286 (79%) | 73 | 3 | 168 |
| 2021 | 320 (90%) | 33 | 0 | 161 |
| 2020 | 238 (88%) | 25 | 3 | 481 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Oregon, see the EPA's AirNow.gov.
Water Systems (87)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| SUNRISE WATER AUTHORITY | 50,003 | 0 |
| LAKE OSWEGO MUNICIPAL WATER | 40,000 | 1 |
| OREGON CITY | 33,940 | 0 |
| OAK LODGE WATER SERVICES | 30,000 | 3 |
| CLACKAMAS RIVER WATER | 29,918 | 0 |
| WEST LINN, CITY OF | 28,000 | 0 |
| WILSONVILLE, CITY OF | 25,915 | 0 |
| CLACKAMAS RIVER WATER - CLAIRMONT | 19,928 | 1 |
| CANBY UTILITY | 18,754 | 0 |
| SANDY, CITY OF | 12,991 | 44 |
| GLADSTONE, CITY OF | 12,121 | 18 |
| MOLALLA, CITY OF | 10,298 | 0 |
| ESTACADA, CITY OF | 5,750 | 6 |
| RIVERGROVE WATER DISTRICT | 4,000 | 0 |
| LAKE GROVE WATER DISTRICT | 3,100 | 0 |
| BORING WATER DISTRICT NO 24 | 2,500 | 1 |
| COLTON WATER DISTRICT | 1,500 | 13 |
| SALMON VALLEY WATER COMPANY | 1,500 | 0 |
| RHODODENDRON WTR ASSOC | 980 | 9 |
| TIMBERLINE RIM WATER CO INC | 800 | 1 |
| MULINO WATER DISTRICT | 700 | 2 |
| RIVERBEND MOBILE HOME PARK | 600 | 0 |
| BIG VALLEY WOODS WATER CORP | 550 | 0 |
| PIONEER MOBILE HOME PARK | 400 | 0 |
| RIVERVIEW MFGD HOME COURT | 400 | 0 |
| GLENMORRIE COOPERATIVE ASSN | 310 | 0 |
| KELSO WATER ASSN | 300 | 0 |
| ALDER CREEK BARLOW WATER DIST | 300 | 9 |
| EAGLE CREST MOBILE HOME PARK | 300 | 0 |
| CANBY REGENCY | 265 | 5 |
| EASTMONT WATER COMPANY | 250 | 0 |
| PETES MOUNTAIN WATER CO | 250 | 2 |
| SKYLANDS WATER COMPANY | 250 | 0 |
| RIVERBEND-RIVERBANK COMMUNITY | 225 | 0 |
| GOVERNMENT CAMP WATER SYSTEM | 200 | 0 |
| GREEN ACRES MHP - UMATILLA CO | 200 | 0 |
| SKYVIEW ACRES WATER COMPANY | 200 | 98 |
| WALNUT MOBILE HOME PARK | 200 | 0 |
| MT HOOD RV VILLAGE | 200 | 2 |
| BARLOW TRAIL ESTATES | 180 | 0 |
| EXCALIBUR VILLAGE | 180 | 1 |
| MOUNTAIN AIR WATER ASSOC | 170 | 0 |
| PARADISE/ROGUE MEADOWS WS | 165 | 18 |
| FOREST HAVEN SUBDIVISION | 165 | 0 |
| COUNTRY CLUB WATER DISTRICT | 150 | 0 |
| ESTACADA MOBILE VILLAGE | 150 | 3 |
| POLEHN HEIGHTS WATER ASSN | 150 | 8 |
| KINGSWOOD HEIGHTS WATER CO-OP | 138 | 0 |
| BARLOW, CITY OF | 135 | 0 |
| SLEEPY HOLLOW WATER DISTRICT | 135 | 0 |
| SPRINGWATER ESTATES | 130 | 0 |
| BETHEL PARK | 125 | 5 |
| RIVERSIDE WATER DISTRICT | 120 | 0 |
| CARVER MOBILE RANCH | 110 | 2 |
| WESTWIND MOBILE HOME PARK | 104 | 1 |
| BRIGHTWOOD WATER WORKS | 100 | 1 |
| WUNDER MOBILE PARK | 100 | 3 |
| MOSSY BRAE WATER DISTRICT | 100 | 1 |
| CLACKAMAS RIVER RV PARK | 100 | 4 |
| MOUNTAIN VIEW CO-OP | 95 | 3 |
| CURRINSVILLE MOBILE HOME PARK | 90 | 2 |
| DIETZ AIR PARK WATER SYSTEM | 85 | 0 |
| ORIENT DRIVE MOBILE ESTATES | 83 | 0 |
| LARK MEADOWS ASSOCIATION | 80 | 1 |
| ZIG ZAG VILLAGE WATER SYSTEM | 80 | 3 |
| PARADISE COMMUNITY ASSOC | 75 | 0 |
| ASHDOWN WOOD WATER COMPANY | 75 | 0 |
| FOREST PARK MOBILE VILLAGE | 75 | 0 |
| WORKMAN AIR PARK #3 | 75 | 2 |
| TERRAND MOBILE TERRACE | 71 | 0 |
| TWIN ISLAND COMMUNITY | 70 | 0 |
| MAPLE TERRACE MOBILE HOME PARK | 70 | 5 |
| CEDARHURST IMPROVEMENT CLUB | 60 | 3 |
| WELCHES WATER COMPANY | 60 | 3 |
| GNR WATER DISTRICT | 60 | 0 |
| HIGHLAND VIEW MOBILE HOME PARK | 60 | 0 |
| ZIG ZAG WATER CO-OP | 60 | 3 |
| BIG FOOT MHP | 60 | 2 |
| NORTH BRIGHTWOOD IMPROV ASSN | 50 | 0 |
| HIDEAWAY HILLS WATER COMPANY | 45 | 1 |
| RANCHERO PETITE IMPROV DIST | 40 | 0 |
| EAGLE CREEK MOBILE ESTATES | 35 | 0 |
| MT SHADOW MHP | 30 | 0 |
| SPAR TREE MHP | 26 | 2 |
| NORTH CLACKAMAS COUNTY WC | 0 | 2 |
| SOUTH FORK WATER BOARD | 0 | 0 |
| LAKE OSWEGO - TIGARD WATER SUPPLY | 0 | 0 |
TRI Facilities (36)
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| Northwest Pipe & Casing/Hall Process Co | NPL Site | 51.09 |
Cities in Clackamas (21)
Frequently Asked Questions
What is the environmental risk level in Clackamas, Oregon? ▼
Are there Superfund sites in Clackamas? ▼
How many toxic release facilities are in Clackamas? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.