Madison County Pwsd 1 North And South
Published drinking-water records and contacts for Madison County Pwsd 1 North And South. System MO4024368. Review sources and dates; not a real-time water assessment.
- System ID
- MO4024368
- State or territory
- MO
- Published population served
- 1705
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 20 — 1993-07-01 – 2025-12-31
- Missouri DNR PFAS samples — non-UCMR classes: 226 — 2022-11-08 – 2024-11-12
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) | 0.00129 mg/L | 2023-01-01 – 2025-12-31 | 2026Q3 |
| Lead (PB90) | 0.0014 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.0014 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.00246 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.00246 mg/L | 2017-01-01 – 2019-12-31 | 2026Q3 |
| Lead (PB90) | 0.00199 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.00199 mg/L | 2014-01-01 – 2016-12-31 | 2026Q3 |
| Lead (PB90) | 0.00316 mg/L | 2011-01-01 – 2013-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| NONAFLUORO NFDHA | < 1.9 NG/L | 2024-11-12 | WELL #1 HWY OO / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROUNDECANOIC ACID (PFUNA) | < 1.9 NG/L | 2024-11-12 | WELL#1 TREATMENT MADISON CO SO MO4024369 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORO PFEESA | < 1.9 NG/L | 2024-11-12 | SOUTH WELL #2 TREATMENT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 1.9 NG/L | 2024-11-12 | WELL#1 TREATMENT MADISON CO SO MO4024369 / Missouri DNR PFAS samples — non-UCMR classes |
| 9CL-PF3ONS | < 1.9 NG/L | 2024-11-12 | SOUTH WELL #2 TREATMENT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 1.9 NG/L | 2024-11-12 | WELL #1 HWY OO / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEXANE SULFONIC ACID (PFHxS) | < 1.9 NG/L | 2024-11-12 | WELL #1 HWY OO / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODECANOIC ACID (PFDA) | < 1.9 NG/L | 2024-11-12 | SOUTH WELL #2 TREATMENT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODECANOIC ACID (PFDA) | < 1.9 NG/L | 2024-11-12 | WELL #1 HWY OO / Missouri DNR PFAS samples — non-UCMR classes |
| HFPO-DA | < 1.9 NG/L | 2024-11-12 | WELL#1 TREATMENT MADISON CO SO MO4024369 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODODECANOIC ACID (PFDOA) | < 1.9 NG/L | 2024-11-12 | SOUTH WELL #2 TREATMENT / Missouri DNR PFAS samples — non-UCMR classes |
| 11CL-PF3OUDS | < 1.9 NG/L | 2024-11-12 | SOUTH WELL #2 TREATMENT / Missouri DNR PFAS samples — non-UCMR classes |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
4 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 / LSL Reporting | 2024-10-17 – — | Resolved | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1996-10-01 – 1996-10-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1995-02-01 – 1995-02-28 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Monthly (TCR) | 1991-08-01 – 1991-08-31 | 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
- Missouri DNR PFAS samples — non-UCMR classes — last successful check: 2026-10-15
Administrative contact (EPA filing)
Matthews, Paul: 573-783-3460
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.