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North Carolina Water Quality
624
Utilities in database
9.4M
Residents served
35%
On private wells
2
Key contaminants tracked
Drinking Water in North Carolina
North Carolina has 624 community water systems serving approximately 9.4 million residents. Primary water sources include surface water. The most commonly reported contaminants include disinfection byproducts, lead. 35% of North Carolina residents rely on private wells. NCDEQ holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in North Carolina
326–350 of 624Town of Swepsonville
NC3001005 · 2,497 served
Town of Columbus
NC0175015 · 2,489 served
Town of Mayodan
NC0279025 · 2,478 served
Chatham Co-sw Chatham
NC0319050 · 2,470 served
Town of Beech Mountain
NC0195104 · 2,468 served
Town of Green Level
NC0201030 · 2,450 served
Town of Windsor
NC0408010 · 2,433 served
Seagrove-ulah Metro Water Dist
NC0276040 · 2,413 served
Town of Pine Level
NC0351040 · 2,413 served
Town of Ossipee
NC0201123 · 2,390 served
Town of Saint Pauls
NC0378030 · 2,385 served
Town of Chadbourn
NC0424020 · 2,370 served
Brookwood South/fayetteville Pwc
NC5026018 · 2,357 served
Town of Jonesville
NC0299010 · 2,354 served
Town of Ellenboro
NC0181038 · 2,322 served
Town of Four Oaks
NC0351035 · 2,302 served
Town of Kenly
NC0351030 · 2,301 served
Woodlake Water & Sewer Inc
NC0363114 · 2,287 served
Linville Land Harbor
NC0106104 · 2,280 served
Lake Junaluska Assembly
NC0144107 · 2,273 served
Town of Stokesdale
NC0241035 · 2,252 served
Town of Warrenton
NC0293010 · 2,250 served
Martin Co Water & Sewer Dist I
NC6059003 · 2,245 served
Brandywine Bay
NC0416163 · 2,245 served
Northampton--progressive
NC0466045 · 2,228 served
Key Contaminant Concerns in North Carolina
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
North Carolina Water FAQs
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Data source: Utility data from EPA SDWIS. 624 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-17