No health-based violations on EPA record since 2016.
Serves about 2,555 people (1,006 connections) with groundwater from its own wells, and buys water from Onslow Water and Sewer Authority.
From EPA's record for NC0467030. PurityMap is independent of Northwest Onslow Water Assoc.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
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 →Northwest Onslow Water Assoc's phone number on EPA record is 910-324-2221. Its mailing address is P O BOX 706, RICHLANDS, NC 28574.
According to EPA's record, Northwest Onslow Water Assoc uses groundwater from its own wells, and buys water from Onslow Water and Sewer Authority.
No health-based violations on EPA record since 2016. EPA also lists 4 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Northwest Onslow Water Assoc's latest lead and copper round, which ended in December 2025, was 5 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Northwest Onslow Water Assoc. Its phone number on EPA record is 910-324-2221. Its mailing address on EPA record is P O BOX 706, RICHLANDS, NC 28574. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.