Is Topsail Beach, NC tap water safe?
The short answer
4 of the 4 utilities serving Topsail Beach have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and CDC’s records: Onslow WTR and Sewer Authority, Town of Surf City, Town of Topsail Beach and 1 more.
Onslow WTR and Sewer Authority, which serves the most people here, has 1 result above EPA’s health benchmark. The worst: Lithium at 29.5 ppb, above EPA’s health benchmark. A health benchmark is a level EPA screens with, not a legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Topsail Beach’s ZIP codes, from EPA’s estimates.
- Open report
Onslow WTR and Sewer Authority
North Carolina · serves 156,755 people · about 310 in Topsail Beach
1 result above EPA’s health benchmark. The worst: Lithium at 29.5 ppb, above EPA’s health benchmark.
1 health-based violation since 2016
- Open report
Town of Surf City
North Carolina · serves 9,730 people · under 100 in Topsail Beach
Nothing in its records is above a health goal.
1 health-based violation since 2016
- Open report
Town of Topsail Beach
North Carolina · serves 3,495 people · under 100 in Topsail Beach
1 result above the legal limit. The worst: Total trihalomethanes (TTHM) at 92.7 ppb, above the legal limit.
7 health-based violations since 2016
- Open report
Old Settlers Water System
North Carolina · serves 2,677 people · lists Topsail Beach among the places it serves
Nothing in its records is above a health goal.
1 health-based violation since 2016
Water testing near Topsail Beach
The 3 labs North Carolina certifies closest to Topsail Beach, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Beacham Laboratory- Division of Environmental
Jacksonville, NC · about 19 miles
Certified for bacteria
Cape Fear Analytical, LLC
Wilmington, NC · about 23 miles
Certified for organic chemicals
Environmental Chemists, Inc.
Wilmington, NC · about 23 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
ZIP codes in Topsail Beach
Which ZIP codes are in Topsail Beach: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: North Carolina State Laboratory of Public Health, certified drinking water laboratories; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Topsail Beach
Other towns in Onslow County with a page of their own.
What to do next
- Read Onslow WTR and Sewer Authority’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About LithiumWhat it does to health, where it comes from, and the certification claim that addresses it.About Lithium
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water