Ninety-One Elem Sd 91
Published drinking-water records and contacts for Ninety-One Elem Sd 91. System OR4193718. Review sources and dates; not a real-time water assessment.
- System ID
- OR4193718
- State or territory
- OR
- Published population served
- 450
- System type (source code)
- NTNCWS
Published records and dates
- Lead and copper monitoring summaries: 17 — 1995-01-01 – 2026-12-31
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.017 mg/L | 2024-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0.005 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.0037 mg/L | 2020-01-01 – 2020-06-30 | 2026Q3 |
| Lead (PB90) | 0.004 mg/L | 2019-07-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.0031 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.00224 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Lead (PB90) | 0.00085 mg/L | 2008-01-01 – 2010-12-31 | 2026Q3 |
| Lead (PB90) | 0.0065 mg/L | 2005-01-01 – 2007-12-31 | 2026Q3 |
Published compliance history
28 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Arsenic Rule / Monitoring, Regular | 2026-01-01 – 2026-03-31 | Resolved | No | 2026Q3 |
| Arsenic Rule / Monitoring, Regular | 2025-10-01 – 2025-12-31 | Resolved | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2023-10-01 – — | Resolved | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
| Volatile Organic Chemicals / Monitoring, Regular | 2023-01-01 – 2025-12-31 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
Administrative contact (EPA filing)
Ninety-One Elem Sd 91: 503-266-0018
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.