No health-based violations on EPA record since 2016.
Serves about 4,700 people (2,242 connections) with groundwater from its own wells.
From EPA's record for MO1024311. PurityMap is independent of Johnson County PWSD 3.
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 May 2024 to November 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 25 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| 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 | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-08 to 2024-11-13 | UCMR5 Analytical Results: JOHNSON COUNTY PWSD 3 (MO1024311) |
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 →Johnson County PWSD 3's phone number on EPA record is 660-429-2494. Its mailing address is 106 SE 421 RD, WARRENSBURG, MO 64093-0000.
According to EPA's record, Johnson County PWSD 3 uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Johnson County PWSD 3's latest lead and copper round, which ended in December 2024. The federal action level is 15 µg/L.
PurityMap has no verified website for Johnson County PWSD 3. Its phone number on EPA record is 660-429-2494. Its mailing address on EPA record is 106 SE 421 RD, WARRENSBURG, MO 64093-0000. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.