WaterVerge

Is Willow Springs, NC Tap Water Safe to Drink?

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

4K residents served 18 water systems PWSID: NC0392387
Overall Score
46 / 100
Violations
56 active
Last Updated
May 2026
Source
Groundwater
#339 of 417 in North Carolina Top 89% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
DGRADE
Water Quality Grade
46/100
waterverge.com
D 46/100

Willow Springs, NC — Water Quality Report

Willow Springs's drinking water received a grade of D (46 out of 100), indicating poor water quality. The city's 18 water systems serve approximately 3,758 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 335 violations on record, including 6 health-based violations. 56 remain unresolved.

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

What to know about Willow Springs's water

Willow Springs ranks #339 out of 417 cities in North Carolina for water quality, placing it among the lowest-rated in the state.

Willow Springs 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.

The system has seen 31 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
46 out of 100 Grade D
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
0/45
F
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Willow Springs, NC water safe to drink?

Concerns Identified

Willow Springs's drinking water has significant quality concerns based on EPA testing data. With a grade of D (46/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 18 water systems serve approximately 3,758 residents using groundwater (wells).

56
Active Violations
0.0 ppb
Lead (90th %ile)
7 events
Disaster History

Recent water quality updates for Willow Springs

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Willow Springs's water quality assessment. Grade: D (46/100).

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

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.

Key contaminant findings

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

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 1.55 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

Willow Springs's water system has 335 total violations on record, including 6 health-based violations. 56 remain unresolved. 31 violations were issued in the last 5 years.

OtherMRMONTTRPTMCL
Most recent violations:
Sep 2025 Public Notice Open
Jul 2025 Public Notice Open
Apr 2025 Lead and Copper Rule Open
Jan 2025 TTHM Resolved
Jan 2025 Total Haloacetic Acids (HAA5) Resolved

Flood & environmental risk

Wake County has experienced 7 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Bond Lake, Coles Branch Reservoir, Hatchers Grove Reservoir, Page Lake, Sorrells Grove Reservoir.

HURRICANE IAN
Hurricane FEMA DR-3586
HURRICANE ISAIAS
Hurricane FEMA DR-3534
HURRICANE DORIAN
Hurricane FEMA DR-3423

Where does Willow Springs's water come from?

Willow Springs's drinking water comes from groundwater (wells), supplied by 18 water systems serving approximately 3,758 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Bond Lake (lake), Coles Branch Reservoir (lake), Hatchers Grove Reservoir (lake), Page Lake (lake), Sorrells Grove Reservoir (lake).

What Willow Springs residents can do

Install a water filter

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

Willow Springs'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
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
1.55 mg/L
EPA Action Level: 1.3 mg/L · +20% over limit
Exceeds Limit
Compliance Record

Violation summary

335
Total violations
6
Health-based
56
Active / unresolved
Sep 2025
Most recent violation
Compliance Record

Violations & advisories

335 Total
56 Active
6 Health-based
279 Resolved
4 SNC
Violations by category
Inorganic Chemicals
92
Synthetic Organic Chemicals
78
Volatile Organic Chemicals
42
Nitrate Rule
20
Public Notice Rule and Revised PN Rule
17
Sep 2025 Active
Public Notice
Other Violation 0
Jul 2025 Active
Public Notice
Other Violation 0
Apr 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
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 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2023 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jan 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2022 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2021 Active
Public Notice
Other Violation 0
Jul 2020 Active
Consumer Confidence Rule
Other Violation 0
Jan 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2019 Active
Consumer Confidence Rule
Other Violation 0
Jan 2019 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Showing 20 of 335 violations
Environmental Risk

Drought conditions

D3 — extreme drought

Wake County is currently in D3 (extreme 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.

14
Weeks at D2+ (current streak)
13.7%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

7
Declared disasters
Oct 2022
Most recent
Hurricane
Most common type

Wake County has experienced 7 federally declared disasters since 2005. 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
Sep 2019
HURRICANE DORIAN
Hurricane FEMA #3423
Sep 2018
HURRICANE FLORENCE
Hurricane FEMA #3401
Oct 2016
HURRICANE MATTHEW
Hurricane FEMA #4285
Oct 2016
HURRICANE MATTHEW
Hurricane FEMA #3380

Recommended water filters

Based on contaminants detected in Willow Springs'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) 0.0 15 ppb Inorganic Safe
Copper (90th percentile) 1.55 1.3 mg/L Inorganic Over Limit
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 37.0 ppb from 1994 (37.0 ppb) to 2025 (0.0 ppb).

Copper level (90th percentile)

Latest reading: 1.555 mg/L (1994)

EPA action level: 1.3 mg/L

Contaminant Rankings

See how Willow Springs compares by contaminant

Explore where Willow Springs ranks among all North Carolina cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
3,758
Water Systems
18
Water Source

Where Willow Springs's water comes from

Groundwater

Willow Springs'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 private ownership and serves approximately 3,758 people through 18 water systems.

Local Hydrology

Water bodies near Willow Springs

Willow Springs is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Bond Lake
lake
Coles Branch Reservoir
lake
Hatchers Grove Reservoir
lake
Page Lake
lake
Sorrells Grove Reservoir
lake
Infrastructure

Water systems serving Willow Springs

System Name PWSID Population Source
WEEKEND RETREAT/SOUTHERN OAK NC0392387 615 GW
WINDHAVEN S/D NC0392335 528 GW
KENNEBEC FARMS S/D NC4092064 422 GW
ROWLAND POND S/D NC4092043 363 GW
BLALOCK FOREST S/D NC4092097 287 GW
ELLIOTT LANDING S/D NC4092065 219 GW
LEGACY AT FORTY TWO S/D NC4092033 211 GW
LIPSCOMB LANDING S/D NC4092208 178 GW
FISH HAWK RANCH S/D NC4092179 171 GW
OGBURN FARMS S/D NC4092017 157 GW
PLANTATION MHP NC0392178 120 GW
OAK HOLLOW ESTATES NC0392385 117 GW
HUFFINGTON S/D NC4092185 109 GW
GARDNER FARMS S/D NC4092197 84 GW
LITTLE JOHN ACRES NC0392091 63 GW
HEATHERSTONE S/D NC4051001 48 GW
HICKORY HAVEN S/D NC0392332 41 GW
TIMBERBURG HILLS NC0392237 25 GW
Regional Comparison

How Willow Springs compares

Full North Carolina rankings →

Willow Springs's score of 46/100 is on par with the average of 43/100 among major North Carolina cities. It outscores 8 of 10 nearby cities.

Willow Springs (this city)
46
Charlotte
36.5
Raleigh
30.7
Durham
36.6
Greensboro
33.5
North Carolina avg
43
City Profile

About Willow Springs, NC

Wikipedia →

Cary is a town in Wake, Chatham, and Durham counties in the U.S. state of North Carolina and is part of the Raleigh-Cary, NC Metropolitan Statistical Area. According to the 2020 census, its population was 174,721, making it the seventh-most populous municipality in North Carolina, and the 146th-most populous in the United States. In 2023, the town's population had increased to 180,010.

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Frequently asked questions

Is Willow Springs, NC tap water safe to drink?

Willow Springs's water quality earned a grade of D (46/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #339 out of 417 cities tested in North Carolina.

What contaminants are in Willow Springs's water?

Lead was measured at 0.0 ppb (90th percentile). 335 violations are on record.

How is Willow Springs'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 Willow Springs?

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

Where does Willow Springs's water come from?

Willow Springs's water is sourced from Groundwater. The city has 18 water systems serving approximately 3,758 residents.

What health violations has Willow Springs's water system had?

Willow Springs has 6 health-based violations on record. The most recent violation was recorded in September 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 56 violations remain unresolved.

Is Willow Springs's groundwater at risk of contamination?

Willow Springs 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 335 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 Willow Springs's water compare to other cities?

Willow Springs ranks #339 out of 417 cities in North Carolina (better than 19% of state cities) and #13975 out of 15744 cities nationally (11th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.