No health-based violations on EPA record since 2016.
Serves about 8,550 people (2,846 connections) with groundwater from its own wells.
From EPA's record for MO5024317. PurityMap is independent of Laclede County PWSD 1.
Are you this utility? Correct this listing →
No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-11 to 2025-08-12 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-08-12 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-08-12 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-08-12 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-08-12 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-11 to 2025-09-08 | UCMR5 Analytical Results: LACLEDE COUNTY PWSD 1 (MO5024317) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Laclede County PWSD 1's phone number on EPA record is 417-532-3171. Its mailing address is 20480 GRANGER LN, PO BOX 1100, LEBANON, MO 65536-0000.
According to EPA's record, Laclede County PWSD 1 uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Laclede County PWSD 1's latest lead and copper round, which ended in December 2025, was 1.37 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Laclede County PWSD 1. Its phone number on EPA record is 417-532-3171. Its mailing address on EPA record is 20480 GRANGER LN, PO BOX 1100, LEBANON, MO 65536-0000. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.