Tri County Water Authority
Published drinking-water records and contacts for Tri County Water Authority. System MO1071079. Review sources and dates; not a real-time water assessment.
- System ID
- MO1071079
- State or territory
- MO
- Published population served
- 25
- System type (source code)
- CWS
Published records and dates
- Missouri DNR PFAS samples — non-UCMR classes: 54 — 2022-09-13 – 2025-11-05
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
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PERFLUOROTRIDECANOIC ACID (PFTRDA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODODECANOIC ACID (PFDOA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| 11CL-PF3OUDS | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| NETFOSAA | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORODECANOIC ACID (PFDA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| ADONA | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANOIC ACID (PFOA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEXANOIC ACID (PFHXA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROUNDECANOIC ACID (PFUNA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUORONONANOIC ACID (PFNA) | < 1.9 NG/L | 2025-11-05 | TREATMENT PLANT / 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
0 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
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)
Overstreet, John: 816-796-4100
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.