Riddle Water Quality
Oregon
According to EPA SDWIS, Riddle, Oregon is served by 5 community water systems covering about 2,014 people. The same extract lists 37 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Riddle, Oregon is delivered through 5 EPA-regulated community water systems serving an estimated 2,014 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 37 violation records across the 5 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 6 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, Total Haloacetic Acids (HAA5), TTHM, Lead and Copper Rule, Interim Enhanced Surface Water Treatment Rule and 1 others. 2 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Oregon drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| RIDDLE, CITY OF | 1,224 | 0 | Clean |
| SOUTH UMPQUA WATER ASSOCIATION | 575 | 0 | Clean |
| DIAMOND LAKE LODGE/RESORT | 90 | 5 | Health |
| LAWSON ACRES WATER ASSOCIATION | 75 | 32 | Health |
| WINCHESTER RIDGE | 50 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| LAWSON ACRES WATER ASSOCIATION | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2020-07-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2020-01-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2019-10-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2018-10-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2017-04-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2017-01-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2016-10-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2016-07-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2016-07-01 |
| DIAMOND LAKE LODGE/RESORT | Lead and Copper Rule | 2016-06-01 |
| DIAMOND LAKE LODGE/RESORT | Lead and Copper Rule | 2016-05-06 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2016-04-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2016-04-01 |
| LAWSON ACRES WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2016-01-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2016-01-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2016-01-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2015-10-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2015-10-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2015-07-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2015-07-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2015-04-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2015-04-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2015-01-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2015-01-01 |
| LAWSON ACRES WATER ASSOCIATION | Surface Water Treatment Rule | 2014-12-01 |
| LAWSON ACRES WATER ASSOCIATION | Surface Water Treatment Rule | 2014-11-01 |
| LAWSON ACRES WATER ASSOCIATION | Surface Water Treatment Rule | 2014-10-01 |
| LAWSON ACRES WATER ASSOCIATION | Total Haloacetic Acids (HAA5) | 2014-10-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2014-10-01 |
| LAWSON ACRES WATER ASSOCIATION | TTHM | 2014-07-01 |
| LAWSON ACRES WATER ASSOCIATION | Interim Enhanced Surface Water Treatment Rule | 2014-06-01 |
| LAWSON ACRES WATER ASSOCIATION | Surface Water Treatment Rule | 2014-06-01 |
| LAWSON ACRES WATER ASSOCIATION | Surface Water Treatment Rule | 2014-02-01 |
| DIAMOND LAKE LODGE/RESORT | Lead and Copper Rule | 2000-01-01 |
| DIAMOND LAKE LODGE/RESORT | Lead and Copper Rule | 1996-01-01 |
| DIAMOND LAKE LODGE/RESORT | Lead and Copper Rule | 1995-12-01 |
What are Riddle's health-based records for?
Riddle's health-based violation records carry 6 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 15 | 1 |
| Tthm | 9 | 1 |
| Surface Water Treatment Rule | 5 | 1 |
| Lead and Copper Rule | 5 | 1 |
| Interim Enhanced Surface Water Treatment Rule | 2 | 1 |
| Lead and Copper Rule Revisions | 1 | 1 |
TRI Facilities in Riddle
| Facility | Total Releases |
|---|---|
| Roseburg Forest Products Co. - Riddle Plywood #4 | 240.6K lbs |
| Roseburg Forest Products Co-Ewp Facility | 129.0K lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Riddle, Oregon? ▼
How many water violations does Riddle have in this EPA extract? ▼
What contaminants were found in Riddle water? ▼
How many water systems serve Riddle? ▼
Where does Riddle get its drinking water? ▼
Are there pollution sources near Riddle? ▼
How does Riddle compare in Oregon?
Of the 287 Oregon places with at least one community water system on file, Riddle ranks #44 by number of systems (5).
Either side of it: Happy Valley (5), Hood River (5), St Helens (5), Terrebonne (5)
About This Data
Figures here are the current EPA SDWIS extract joined to the 5 community water systems whose service area lists Riddle, ranked against the 287 Oregon places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.