Nitrate above the legal limit in the period starting April 2026; 1 open health-based violation on EPA record.
Serves about 250 people (88 connections) with groundwater bought from City of Vernon.
From EPA's record for TX2440003. PurityMap is independent of Northside WSC.
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38 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From April 2026 | Nitrate | 15 mg/L | 10 mg/L | Addressed |
| From January 2026 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From October 2025 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From July 2025 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From April 2025 | Nitrate | 13 mg/L | 10 mg/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From January 2025 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From October 2024 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From July 2024 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From April 2024 | Nitrate | 17 mg/L | 10 mg/L | Archived |
| From January 2024 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From October 2023 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From July 2023 | Nitrate | 14 mg/L | 10 mg/L | Archived |
| From April 2023 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From January 2023 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From October 2022 | Nitrate | 19 mg/L | 10 mg/L | Archived |
| From July 2022 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From April 2022 | Nitrate | 18 mg/L | 10 mg/L | Archived |
| From January 2022 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From October 2021 | Nitrate | 17 mg/L | 10 mg/L | Archived |
| From July 2021 | Nitrate | 17 mg/L | 10 mg/L | Archived |
| From April 2021 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From January 2021 | Nitrate | 16 mg/L | 10 mg/L | Archived |
| From October 2020 | Nitrate | 18 mg/L | 10 mg/L | Archived |
| From July 2020 | Nitrate | 15 mg/L | 10 mg/L | Archived |
| From April 2020 | Nitrate | 16 mg/L | 10 mg/L | Archived |
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.
Get PurityMap updates about this water system.
Follow this water →According to EPA's record, Northside WSC uses groundwater bought from City of Vernon.
EPA's record shows 38 health-based violations for Northside WSC in the 10 years to July 9, 2026. Nitrate was above the legal limit in the period starting April 2026. EPA's record also shows 1 open health-based violation. EPA also lists 11 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Northside WSC's latest lead and copper round, which ended in December 2023, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Northside WSC. Its mailing address on EPA record is 11502 FM 924 W, VERNON, TX 76384-2541. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.