WHAT’S BEYOND THE TAP

North Carolina · county

Water quality in Union County, North Carolina

One thing here needs attention.

Two things could not be determined from the record.

Public records for Union County cover 57 named waterways across 29 sub-watersheds, and 41 active water systems serving about 223,624 people. Below is what those records establish — and what they don't.

57waterways on record
13not considered safe for swimming
0under fish-consumption advisories
4never assessed at all
41water systems
2with an unresolved health-based violation

What the records flag

Needs attention

Clear Creek is not considered safe for swimming

A state determination under the Clean Water Act. This is one of several assessed waterways in the area you searched — search a street address to see which waters connect to you.

Listed cause
TURBIDITY
Listed cause
FECAL COLIFORM

Official determination, waterway near you · U.S. EPA / state agency — ATTAINS assessed waters

Rivers, creeks & lakes

WaterwaySwimmingEating the fishListed causes
Clear CreekNot considered safeNot assessedTURBIDITY, FECAL COLIFORM
CW-083Not considered safeNot assessedESCHERICHIA COLI (E. COLI), TURBIDITY
CW-185Not considered safeNot assessedDISSOLVED OXYGEN, ESCHERICHIA COLI (E. COLI)
Goose CreekNot considered safeNot assessedBENTHIC MACROINVERTEBRATES BIOASSESSMENTS, FECAL COLIFORM
McAlpine Creek (Waverly Lake)Not considered safeNot assessedBENTHIC MACROINVERTEBRATES BIOASSESSMENTS, FECAL COLIFORM
PD-333Not considered safeNot assessedBENTHIC MACROINVERTEBRATES, ESCHERICHIA COLI (E. COLI)
RS-17352Not considered safeNot assessedESCHERICHIA COLI (E. COLI), TURBIDITY
Beaverdam CreekNot assessedNot assessedCOPPER
Brown CreekOn record, no conclusionNot assessedFISH BIOASSESSMENTS, BENTHIC MACROINVERTEBRATES BIOASSESSMENTS
CW-041Not considered safeNot assessedESCHERICHIA COLI (E. COLI)
CW-145Not considered safeNot assessedESCHERICHIA COLI (E. COLI)
Duck CreekNot assessedNot assessedBENTHIC MACROINVERTEBRATES BIOASSESSMENTS

Showing 12 of 57 waterways on record — the full report has all of them. "Not considered safe" is a state determination under the Clean Water Act, not a measurement taken today. "Not assessed" means unknown — never clean.

Drinking water systems

SystemServesHealth-based violations since 2021Without recorded resolution
Union County Water System169,68500
City of Monroe43,08111
Town of Wingate3,95000
Town of Marshville3,16300
Jaars, Inc62500
Glencroft S/d38000
Mill Creek Baptist Church31000
Cane Creek Park-F.c.a.30000
Shiloh Advent Christian Church20000
Waxhaw Baptist Church15000
New LVNG Word Discipleship & Worship CTR15000
MT Zion Baptist Church13000

Showing the 12 largest of 41 active systems serving the county. Health-based violations are shown alone — administrative (paperwork) records are counted separately and never added in, because most violation records are paperwork.

What the record doesn’t establish

  • 4 nearby waterways have never been assessed — their condition is unknown.
  • Whether your home's own plumbing adds lead or copper — no dataset covers indoor pipes.

Common questions

Is tap water safe to drink in Union County?

No public dataset can establish that any tap is safe or unsafe — records have gaps, lag by up to a quarter, and say nothing about a building's own plumbing or private wells.

What the records do show: 41 active water systems serve Union County. 2 of them currently have an unresolved health-based violation on record. Health-based violations are counted separately from paperwork violations, which make up most records.

Which waterways in Union County are not considered safe for swimming?

State assessments under the Clean Water Act list Clear Creek, CW-083, CW-185, Goose Creek, McAlpine Creek (Waverly Lake) and 8 more as not supporting recreation. That is an official determination about the waterway, not a measurement taken today.

33 of the county's waterways on record have never been assessed for swimming — their condition is unknown.

How current is this data?

Datasets refresh on their agencies' cycles — EPA drinking-water records quarterly, state waterway assessments roughly every two years. The sources table on this page lists the version and retrieval date of every dataset used.

Sources

DatasetAgency versionRetrieved
EPA/state ATTAINS waterway assessmentsATTAINS_Assessment ArcGIS snapshot (gispub.epa.gov)2026-08-15
ATTAINS waterway geometryATTAINS_Assessment ArcGIS lines + areas (gispub.epa.gov)2026-08-16
Census TIGER county boundariesCensus TIGERweb Counties (current vintage)2026-08-16
NC DEQ PFAS monitoringNC DEQ DWR EQuIS export, samples through 2025-07-292026-08-17
Census TIGER place boundariesCensus TIGERweb Places (Incorporated + CDP, current vintage)2026-08-16
EPA water system service areasEPA PWS Service Areas v3 (hosted layer, item 80c6912ef14f46e480f5afd807767b4b)2026-08-15
EPA Safe Drinking Water Act compliance recordsECHO SDWA quarterly bulk download2026-08-16
EPA standards & benchmarks2026-08 curation2026-08-15
EPA UCMR5 PFAS monitoringUCMR5 occurrence data (collections through 2025-12-10)2026-08-15
USGS watershed boundariesUSGS WBD via National Map MapServer2026-08-15

Records lag their agencies' refresh cycles — a recent change may not appear yet. Absence from a dataset is absence of a record, never evidence that water is clean.

Go deeper

The interactive report adds the map, monitoring-station samples, permitted operations in connected watersheds, and plain-language explanations of every term.

See the full Union County report