Silex PWS
Published drinking-water records and contacts for Silex PWS. System MO6010902. Review sources and dates; not a real-time water assessment.
- System ID
- MO6010902
- State or territory
- MO
- Published population served
- 206
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 25 — 1993-07-01 – 2026-06-30
- Missouri DNR PFAS samples — non-UCMR classes: 36 — 2025-06-16 – 2025-06-16
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) | 0.00209 mg/L | 2026-01-01 – 2026-06-30 | 2026Q3 |
| Lead (PB90) | 0.00495 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Copper (CU90) | 2.166 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.08364 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.00495 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.00144 mg/L | 2020-01-01 – 2022-12-31 | 2026Q3 |
| Lead (PB90) | 0.00144 mg/L | 2018-01-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.00144 mg/L | 2018-01-01 – 2020-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PERFLUORODODECANOIC ACID (PFDOA) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEPTANOIC ACID (PFHPA) | < 2 NG/L | 2025-06-16 | TREATMENT WELL #1 & 2 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEPTANOIC ACID (PFHPA) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORONONANOIC ACID (PFNA) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEXANE SULFONIC ACID (PFHxS) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROTRIDECANOIC ACID (PFTRDA) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODODECANOIC ACID (PFDOA) | < 2 NG/L | 2025-06-16 | TREATMENT WELL #1 & 2 / Missouri DNR PFAS samples — non-UCMR classes |
| 11CL-PF3OUDS | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROTRIDECANOIC ACID (PFTRDA) | < 2 NG/L | 2025-06-16 | TREATMENT WELL #1 & 2 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEXANOIC ACID (PFHXA) | < 2 NG/L | 2025-06-16 | TREATMENT WELL #1 & 2 / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODECANOIC ACID (PFDA) | < 1.8 NG/L | 2025-06-16 | TREATMENT WELL #3 / 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
40 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 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2025-04-23 – — | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2024-04-01 – 2025-03-31 | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2024-02-01 – 2024-02-29 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2024-01-01 – 2024-12-31 | Resolved | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2023-10-01 – 2024-09-30 | Resolved | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2023-07-01 – 2024-06-30 | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2023-05-01 – 2023-05-31 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2023-04-01 – 2024-03-31 | Resolved | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2023-01-01 – 2023-12-31 | Resolved | Yes | 2026Q3 |
| Public Notice Rule and Revised PN Rule / Public Notification Violation for NPDWR Violation | 2022-12-03 – — | Resolved | No | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2022-11-01 – 2022-11-30 | Resolved | No | 2026Q3 |
| Ground Water Rule / Monitoring, Source Water (GWR) | 2022-11-01 – — | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2022-10-01 – 2023-09-30 | Resolved | Yes | 2026Q3 |
| Radionuclides and Revised Rad Rule / Maximum Contaminant Level Violation, Average | 2022-07-01 – 2023-06-30 | Resolved | Yes | 2026Q3 |
| Stage 1 Disinfectants and Disinfection Byproducts Rule / Treatment Technique No Certif. Operator | 2022-04-26 – — | Resolved | Yes | 2026Q3 |
| Revised Total Coliform Rule / Monitoring, Routine (RTCR) | 2022-04-01 – 2022-04-30 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 2022-04-01 – 2022-06-30 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 2022-04-01 – 2022-06-30 | Resolved | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 2022-04-01 – 2022-06-30 | Resolved | 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
- Missouri DNR PFAS samples — non-UCMR classes — last successful check: 2026-10-15
Administrative contact (EPA filing)
Luckett, Lynne: 636-278-0622
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.