Montrose PWS
Published drinking-water records and contacts for Montrose PWS. System MO1010541. Review sources and dates; not a real-time water assessment.
- System ID
- MO1010541
- State or territory
- MO
- Published population served
- 384
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 24 — 1993-07-01 – 2024-12-31
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 mg/L | 2022-01-01 – 2024-12-31 | 2026Q3 |
| Lead (PB90) | 0.00063 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.00063 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0.00063 mg/L | 2019-01-01 – 2021-12-31 | 2026Q3 |
| Lead (PB90) | 0.00401 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.00401 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0.00401 mg/L | 2016-01-01 – 2018-12-31 | 2026Q3 |
| Lead (PB90) | 0 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
Published compliance history
21 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 |
|---|---|---|---|---|
| Lead and Copper Rule Revisions / Notification, Known or Potential LSL | 2025-07-02 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2020-11-01 – 2020-11-30 | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2020-07-01 – 2020-07-31 | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2010-03-01 – 2010-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2008-11-01 – 2008-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2008-03-01 – 2008-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Minor (TCR) | 2006-11-01 – 2006-11-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2006-02-01 – 2006-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2005-02-01 – 2005-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2004-04-01 – 2004-04-30 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 2004-03-01 – 2004-03-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1997-08-01 – 1997-08-31 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1985-01-12 – 1985-10-11 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1984-01-12 – 1984-10-11 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1983-01-12 – 1983-10-11 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1982-01-12 – 1982-10-11 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Single Sample | 1981-10-01 – 1982-09-30 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1981-01-12 – 1985-10-11 | Archived | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 1981-01-12 – 1981-10-11 | Archived | Yes | 2026Q3 |
| Inorganic Chemicals / Maximum Contaminant Level Violation, Single Sample | 1980-10-01 – 1981-09-30 | Archived | Yes | 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)
Koch, Charlotte: 660-693-4838
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.