No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2025.
Serves about 2,952 people (984 connections) with groundwater from its own wells.
From EPA's record for TX1580066. PurityMap is independent of E M C Water Supply.
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8 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.113 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 0.11 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.107 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.114 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.103 mg/L | 0.080 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.094 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2022 | Total trihalomethanes (TTHM) | 0.113 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2021 | Total trihalomethanes (TTHM) | 0.128 mg/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 →E M C Water Supply's phone number on EPA record is 903-930-1404. Its mailing address is PO BOX 479, JEFFERSON, TX 75657-0479.
According to EPA's record, E M C Water Supply uses groundwater from its own wells.
EPA's record shows 8 health-based violations for E M C Water Supply 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 April 2025. EPA also lists 4 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in E M C Water Supply's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for E M C Water Supply. Its phone number on EPA record is 903-930-1404. Its mailing address on EPA record is PO BOX 479, JEFFERSON, TX 75657-0479. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.