WaterVerge

Is Maple, NC Tap Water Safe to Drink?

Graded B+ — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

24K residents served 1 water system PWSID: NC0427010
Overall Score
81.5 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#124 of 417 in North Carolina Top 47% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
81.5/100
waterverge.com
B+ 81.5/100

Maple, NC — Water Quality Report

Maple's drinking water received a grade of B+ (81.5 out of 100), indicating good water quality. The city's 1 water system serves approximately 24,130 residents using groundwater.

Lead levels were measured at 3.0 ppb (90th percentile), well within EPA limits. PFAS testing under UCMR 5 found no detectable forever chemicals.

The system has 12 violations on record, including 4 health-based violations. 5 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Maple's water

Maple ranks #124 out of 417 cities in North Carolina for water quality, placing it mid-range in the state.

Maple relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

Hexavalent chromium (chromium-6) was detected at 0.11 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

Quality Breakdown

Water quality score

See methodology →
81.5 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
37.6/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 3.0 ppb (90th percentile).
Contaminants
19.9/20
A
No PFAS compounds detected.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Maple, NC water safe to drink?

Concerns Identified

Maple's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81.5/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 24,130 residents using groundwater (wells).

5
Active Violations
3.0 ppb
Lead (90th %ile)
None
PFAS Detected
10 events
Disaster History

Recent water quality updates for Maple

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Maple's water quality assessment. Grade: B+ (81.5/100).

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

Contaminants: Chloramine.

Disaster
HURRICANE IAN

Federal disaster declaration (FEMA DR-3586). Hurricane event — may have impacted local water infrastructure.

Disaster
HURRICANE ISAIAS

Federal disaster declaration (FEMA DR-3534). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: TTHM.

Key contaminant findings

Based on the most recent EPA sampling data for Maple's water supply.

Lead Within Limits
Detected: 3.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 1.80 mg/L Limit: 1.3 mg/L (EPA Action Level)

Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.

Violation history

Maple's water system has 12 total violations on record, including 4 health-based violations. 5 remain unresolved. 3 violations were issued in the last 5 years.

TTRPTMRMCLOther
Most recent violations:
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Jul 2023 Chloramine Resolved
Oct 2008 TTHM Resolved
Jul 2008 TTHM Resolved

Flood & environmental risk

Currituck County has experienced 10 federally declared disasters since 2010. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE IAN
Hurricane FEMA DR-3586
HURRICANE ISAIAS
Hurricane FEMA DR-3534
HURRICANE DORIAN
Hurricane FEMA DR-4465

Where does Maple's water come from?

Maple's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 24,130 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Maple residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Maple's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Maple's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
3.0 ppb
EPA Action Level: 15 ppb · 20% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
1.80 mg/L
EPA Action Level: 1.3 mg/L · +20% over limit
Exceeds Limit
HAA5 (Disinfection Byproducts)
Disinfection Byproduct
Safe
3.1 µg/L
EPA MCL: 60 µg/L · 5% of limit
Within LimitUCMR 4 DataHAA6Br: 7.5 µg/LHAA9: 8.3 µg/L
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.11 µg/L
CA MCL (no federal MCL): 10 µg/L · 1% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Detected
58.0 µg/L
EPA Health Ref Level: 1,500 µg/L · 4% of limit
DetectedUCMR 3 Data
Chlorate
Disinfection Byproduct
Elevated
190.0 µg/L
EPA Lifetime HA: 210 µg/L · 90% of limit
DetectedUCMR 3 Data
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
0
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

12
Total violations
4
Health-based
5
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

12 Total
5 Active
4 Health-based
7 Resolved
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
4
Lead and Copper Rule
3
Lead and Copper Rule Revisions
2
Consumer Confidence Rule
1
Total Coliform Rule
1
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2006 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2000 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jul 2023 Resolved
Chloramine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2023
Oct 2008 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Dec 2008
Jul 2008 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Sep 2008
Apr 2008 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Jun 2008
Mar 2000 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2000
Jul 1992 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1992
Jul 1992 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 1992
Environmental Risk

Drought conditions

D2 — severe drought

Currituck County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

6
Weeks at D2+ (current streak)
14.5%
Months in D2+ (last 30y)
6
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
Oct 2022
Most recent
Hurricane
Most common type

Currituck County has experienced 10 federally declared disasters since 2010. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Oct 2022
HURRICANE IAN
Hurricane FEMA #3586
Aug 2020
HURRICANE ISAIAS
Hurricane FEMA #3534
Oct 2019
HURRICANE DORIAN
Hurricane FEMA #4465
Sep 2019
HURRICANE DORIAN
Hurricane FEMA #3423
Sep 2018
HURRICANE FLORENCE
Hurricane FEMA #3401
Oct 2016
HURRICANE MATTHEW
Hurricane FEMA #4285

Recommended water filters

Based on contaminants detected in Maple's water supply, we recommend the following filter types.

🔧
For Copper
Reverse Osmosis or KDF Filter
Copper exceeds the EPA action level of 1.3 mg/L

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 3.0 15 ppb Inorganic Safe
Copper (90th percentile) 1.80 1.3 mg/L Inorganic Over Limit
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 20.0 ppb from 1992 (23.0 ppb) to 2025 (3.0 ppb).

Copper level (90th percentile)

Latest reading: 1.797 mg/L (1992)

EPA action level: 1.3 mg/L

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
24,130
Water Systems
1
Water Source

Where Maple's water comes from

Groundwater

Maple's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 24,130 people through 1 water system.

Infrastructure

Water systems serving Maple

System Name PWSID Population Source
CURRITUCK COUNTY WATER SYSTEM NC0427010 24,130 GW
Regional Comparison

Maple's score of 81.5/100 is above the average of 43/100 among major North Carolina cities. It outscores 9 of 10 nearby cities.

Maple (this city)
81.5
Charlotte
36.5
Raleigh
30.7
Durham
36.6
Greensboro
33.5
North Carolina avg
43
City Profile

About Maple, NC

Wikipedia →

Maple is an unincorporated community in Crawford Township, Currituck County, North Carolina, United States, located at the intersection of NC Highway 168 and SR 1246. Maple is located at latitude 36.4148780 North, and longitude -76.0040925 West. The elevation is three feet. Maple appears on the Currituck U.S. Geological Survey Map.

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Frequently asked questions

Is Maple, NC tap water safe to drink?

Maple's water quality earned a grade of B+ (81.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #124 out of 417 cities tested in North Carolina.

What contaminants are in Maple's water?

Lead was measured at 3.0 ppb (90th percentile). No PFAS compounds were detected. 12 violations are on record.

How is Maple's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Maple?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Maple's water come from?

Maple's water is sourced from Groundwater. The city has 1 water system serving approximately 24,130 residents.

What health violations has Maple's water system had?

Maple has 4 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

Is Maple's groundwater at risk of contamination?

Maple uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 12 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Maple's water compare to other cities?

Maple ranks #124 out of 417 cities in North Carolina (better than 70% of state cities) and #7426 out of 15744 cities nationally (53th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.