Auburn Lake Subdivision
Published drinking-water records and contacts for Auburn Lake Subdivision. System MO6031409. Review sources and dates; not a real-time water assessment.
- System ID
- MO6031409
- State or territory
- MO
- Published population served
- 110
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 5 — 2020-01-01 – 2026-12-31
- Missouri DNR PFAS samples — non-UCMR classes: 18 — 2025-12-04 – 2025-12-04
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 | 2024-01-01 – 2026-12-31 | 2026Q3 |
| Lead (PB90) | 0.0016 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.0016 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.00103 mg/L | 2020-07-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.0008 mg/L | 2020-01-01 – 2020-06-30 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| PERFLUORONONANOIC ACID (PFNA) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROTRIDECANOIC ACID (PFTRDA) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANOIC ACID (PFOA) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEXANE SULFONIC ACID (PFHxS) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| NETFOSAA | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| HFPO-DA | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| NMEFOSAA | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| ADONA | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROCTANE SULFONIC ACID (PFOS) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| 9CL-PF3ONS | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROBUTANE SULFONIC ACID (PFBS) | < 2 NG/L | 2025-12-04 | WELL / Missouri DNR PFAS samples — non-UCMR classes |
| PERFLUOROHEPTANOIC ACID (PFHPA) | < 2 NG/L | 2025-12-04 | WELL / 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
1 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 |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Failure Submit IDSE/Subpart V Plan Rpt | 2022-01-01 – — | 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)
Sassen, Isabel: 314-464-3964
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.