Drinking water quality · 2024
· Verified
What's in Town of Knightdale, NC tap water
16 contaminants were measured in the Town of Knightdale, NC water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 16
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- NC
Where your water comes from · EPA SDWIS
Town of Knightdale, NC's drinking water comes from ground water, drawn from 3 sources.
Source
- WELL · 3
Treatment
- TREATMENT_PLT_WELL #1-2
- TREATMENT_PLT_#3
Distribution
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based16 violations on record · most recent Oct 2025resolved
- Treatment technique violationHealth-based1 violation on record · most recent Oct 2024resolved
- Other3 violations on record · most recent Jul 20253 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChloramineA longer-lasting disinfectant made by combining chlorine with ammonia. | 2.75 mg/LRunning annual avgSystem-wide | 4 mg/LMRDLG | Within the limit |
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 2.55 mg/LRunning annual avgSystem-wide | 4 mg/LMRDLG | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 11–29.7 ug/LRunning annual avgSystem-wide | None set | Within the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 12–36 ug/LRunning annual avgSystem-wide | None set | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0–5 ug/LRangeSystem-wide | 0 ug/LMCLG | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0–0.123 mg/LRangeSystem-wide | 1.3 mg/LMCLG | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.57 mg/LReported levelSystem-wide | 4 mg/LMCLG | Within the limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.11 NTUReported levelSystem-wide | None set | Within the limit |
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.5Running annual avgSystem-wide | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Simazine | 0.1 ug/LReported levelSystem-wide | None set | Within the limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Hexafluoropropylene oxide dimer acidHFPO-DA ('GenX chemicals'), a newer-generation PFAS replacement compound. | Not detectedReported level2/29/2024 EMJWTP Finished | 10MCL | None detected |
| Perfluorononanoic acidPerfluorononanoic acid, a PFAS 'forever chemical.' | Not detectedReported level2/29/2024 EMJWTP Finished | 10MCL | None detected |
| Perfluorobutanesulfonic acidPerfluorobutanesulfonic acid, a shorter-chain PFAS 'forever chemical.' | 3.14Reported level8/1/2024 DEBWTP Finished | None set | Detected — no federal limit |
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 1.52Reported level2/29/2024 DEBWTP Raw | 10MCL | Detected — no federal limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 3.35Reported level8/1/2024 DEBWTP Raw | 4MCL | Detected — no federal limit |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 4.57Reported level8/1/2024 EMJWTP Raw | 4MCL | Detected — no federal limit |
People also ask about Town of Knightdale, NC's water
+Is Town of Knightdale, NC tap water safe to drink in 2024?
Every one of the 16 contaminants measured in Town of Knightdale, NC's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Town of Knightdale, NC tap water?
16 contaminants were measured in Town of Knightdale, NC's 2024 Consumer Confidence Report, spanning pfas ("forever chemicals"), disinfectants, and disinfection byproducts. 10 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Town of Knightdale, NC's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Town of Knightdale, NC's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.