No open health-based violations on EPA record in the last 10 years.
Serves about 3,000 people (1,000 connections) with groundwater from its own wells, and buys water from Harris County MUD 168, Harris County MUD 222 and Harris County MUD 61.
From EPA's record for TX1012293. PurityMap is independent of Northwest Harris County MUD 29.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2024 | Lead and copper rule revisions | – | – | 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.
Get PurityMap updates about this water system.
Follow this water →Northwest Harris County MUD 29's phone number on EPA record is 281-923-7214. Its mailing address is 9 GREENWAY PLZ STE 1000, HOUSTON, TX 77046-0900.
According to EPA's record, Northwest Harris County MUD 29 uses groundwater from its own wells, and buys water from Harris County MUD 168, Harris County MUD 222 and Harris County MUD 61.
EPA's record shows 1 health-based violation for Northwest Harris County MUD 29 in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 3 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 Northwest Harris County MUD 29's latest lead and copper round, which ended in June 2026. The federal action level is 15 µg/L.
PurityMap has no verified website for Northwest Harris County MUD 29. Its phone number on EPA record is 281-923-7214. Its mailing address on EPA record is 9 GREENWAY PLZ STE 1000, HOUSTON, TX 77046-0900. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.