No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting October 2018.
Serves about 158 people (75 connections) with groundwater bought from Saline County PWSD 3.
From EPA's record for MO2010559. PurityMap is independent of Nelson PWS.
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9 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2018 | Total trihalomethanes (TTHM) | 88 µg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2018 | Total trihalomethanes (TTHM) | 101 µg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2018 | Total trihalomethanes (TTHM) | 94.4 µg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2018 | Total trihalomethanes (TTHM) | 94.15 µg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2017 | Total trihalomethanes (TTHM) | 96 µg/L | 0.080 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jul–Sep 2017 | Total trihalomethanes (TTHM) | 101 µg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2017 | Total trihalomethanes (TTHM) | 107 µg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2017 | Total trihalomethanes (TTHM) | 109 µg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2016 | Total trihalomethanes (TTHM) | 117 µg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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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.
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Follow this water →Nelson PWS's phone number on EPA record is 660-815-1512. Its mailing address is 101 E 5TH ST, NELSON, MO 65347-0000.
According to EPA's record, Nelson PWS uses groundwater bought from Saline County PWSD 3.
EPA's record shows 9 health-based violations for Nelson PWS in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting October 2018. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Nelson PWS's latest lead and copper round, which ended in December 2024, was 0.55 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Nelson PWS. Its phone number on EPA record is 660-815-1512. Its mailing address on EPA record is 101 E 5TH ST, NELSON, MO 65347-0000. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.