WaterVerge

Is Cheswold, DE Tap Water Safe to Drink?

Graded B+, with 24 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

3K residents served 5 water systems PWSID: DE00A0740
Overall Score
80.9 / 100
Violations
24 active
Last Updated
May 2026
Source
Groundwater
#18 of 43 in Delaware Top 49% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
80.9/100
waterverge.com
B+ 80.9/100

Cheswold, DE — Water Quality Report

Cheswold's drinking water received a grade of B+ (80.9 out of 100), indicating good water quality. The city's 5 water systems serve approximately 3,318 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 55 violations on record, including 20 health-based violations. 24 remain unresolved.

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

What to know about Cheswold's water

Cheswold ranks #18 out of 43 cities in Delaware for water quality, placing it mid-range in the state.

Cheswold 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.

Quality Breakdown

Water quality score

See methodology →
80.9 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
35.9/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Cheswold, DE water safe to drink?

Concerns Identified

Cheswold's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (80.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 5 water systems serve approximately 3,318 residents using groundwater (wells).

24
Active Violations
0.0 ppb
Lead (90th %ile)
9 events
Disaster History

Recent water quality updates for Cheswold

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Cheswold's water quality assessment. Grade: B+ (80.9/100).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
REMNANTS OF HURRICANE IDA

Federal disaster declaration (FEMA DR-4627). Hurricane event — may have impacted local water infrastructure.

Disaster
TROPICAL STORM ISAIAS

Federal disaster declaration (FEMA DR-4566). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Cheswold's water system has 55 total violations on record, including 20 health-based violations. 24 remain unresolved. 2 violations were issued in the last 5 years.

MROtherMCL
Most recent violations:
Oct 2024 Lead and Copper Rule Open
Jul 2022 Consumer Confidence Rule Open
Oct 2019 Lead and Copper Rule Open
Oct 2018 Lead and Copper Rule Open
Jul 2018 Consumer Confidence Rule Open

Flood & environmental risk

New Castle County has experienced 9 federally declared disasters since 1999. 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 Christina River, East Branch White Clay Creek At Avondale, Trout Run At Avondale, Middle Branch White Clay Creek Near West Grove,Pa, West Branch White Clay Creek Near Chesterville.

REMNANTS OF HURRICANE IDA
Hurricane FEMA DR-4627
TROPICAL STORM ISAIAS
Hurricane FEMA DR-4566
HURRICANE SANDY
Hurricane FEMA DR-4090

Where does Cheswold's water come from?

Cheswold's drinking water comes from groundwater (wells), supplied by 5 water systems serving approximately 3,318 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Christina River (river), East Branch White Clay Creek At Avondale (river), Trout Run At Avondale (river), Middle Branch White Clay Creek Near West Grove,Pa (river), West Branch White Clay Creek Near Chesterville (river).

What Cheswold residents can do

Install a water filter

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

Cheswold'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
Compliance Record

Violation summary

55
Total violations
20
Health-based
24
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

55 Total
24 Active
20 Health-based
31 Resolved
Violations by category
Total Coliform Rule
21
Lead and Copper Rule
14
Consumer Confidence Rule
12
Radionuclides and Revised Rad Rule
4
Public Notice Rule and Revised PN Rule
1
Oct 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2022 Active
Consumer Confidence Rule
Other Violation 0
Oct 2019 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2018 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Jul 2015 Active
Consumer Confidence Rule
Other Violation 0
Jul 2014 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2012 Active
Consumer Confidence Rule
Other Violation 0
Jun 2012 Active
Public Notice
Other Violation 0
Oct 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2010 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Oct 2009 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2008 Active
Consumer Confidence Rule
Other Violation 0
Oct 2006 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2003 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 1994 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 1994 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Showing 20 of 55 violations
Industrial pollution

Top industrial polluters within 10 miles of Cheswold

Industrial polluters nearby

Reported releases to surface water by facilities near Cheswold, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
GRIFFITH ENERGY SERVICES INC CARL KING INC
Other · STAR GROUP LP
DOVER, DE19901
8.2 mi
US DOD USAF DOVER AFB
Other · US DEPARTMENT OF DEFENSE
DOVER AFB, DE199025600
8.6 mi
GARRISON ENERGY CENTER
Electric Utilities · COBALT POWER LLC
DOVER, DE19901
5.2 mi
HANDYTUBE LLC
Primary Metals · STEEL PARTNERS HOLDINGS LP
CAMDEN, DE19934
7.8 mi
METAL MASTERS FOOD SERVICE EQU IPMENT CO
Fabricated Metals · METAL MASTERS FOOD SERVICE EQUIPMENT CO INC
CLAYTON, DE19938
5.7 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Cheswold

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Drought conditions

D2 — severe drought

Kent 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.

1
Weeks at D2+ (current streak)
10.7%
Months in D2+ (last 30y)
1
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

9
Declared disasters
Oct 2021
Most recent
Hurricane
Most common type

New Castle County has experienced 9 federally declared disasters since 1999. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Oct 2021
REMNANTS OF HURRICANE IDA
Hurricane FEMA #4627
Oct 2020
TROPICAL STORM ISAIAS
Hurricane FEMA #4566
Nov 2012
HURRICANE SANDY
Hurricane FEMA #4090
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3357
Aug 2011
HURRICANE IRENE
Hurricane FEMA #3336
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3263

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.0 ppb from 1993 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
3,318
Water Systems
5
Water Source

Where Cheswold's water comes from

Groundwater

Cheswold'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 3,318 people through 5 water systems.

Local Hydrology

Water bodies near Cheswold

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

Christina River
river
East Branch White Clay Creek At Avondale
river
Trout Run At Avondale
river
Middle Branch White Clay Creek Near West Grove,Pa
river
West Branch White Clay Creek Near Chesterville
river
Infrastructure

Water systems serving Cheswold

System Name PWSID Population Source
BURTONWOOD DE00A0740 1,503 GW
PINEWOOD ACRES DE0000547 1,200 GW
FOX POINTE SUBDIVISION DE00A0696 500 GW
BLANTON'S MANUFACTURED HOME COMMUNITY DE0000987 75 GW
STRIMEL'S MHP LLC. DE0000492 40 GW
Regional Comparison

How Cheswold compares

Full Delaware rankings →

Cheswold's score of 80.9/100 is above the average of 74/100 among major Delaware cities. It outscores 9 of 10 nearby cities.

Cheswold (this city)
80.9
Bear
79
Bear
79
Wilmington
79.5
New Castle
71.7
Delaware avg
74
City Profile

About Cheswold, DE

Wikipedia →

Newark is a city in New Castle County, Delaware, United States. Home to the University of Delaware, it is located 8 miles (13 km) west-southwest of Wilmington and 28 miles (45 km) southwest of Philadelphia. According to the 2020 census, the town's population is 30,601. It constitutes part of the Delaware Valley, and the Philadelphia metropolitan area.

Economic Profile
$68,083
Median Income
$200,299
Median Home Value
$850/mo
Median Rent
4.5%
Unemployment
Community
41.7
Median Age
344
People / sq mi
16.4%
College Educated
88.9%
Homeownership
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Frequently asked questions

Is Cheswold, DE tap water safe to drink?

Cheswold's water quality earned a grade of B+ (80.9/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #18 out of 43 cities tested in Delaware.

What contaminants are in Cheswold's water?

Lead was measured at 0.0 ppb (90th percentile). 55 violations are on record.

How is Cheswold'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 Cheswold?

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

Where does Cheswold's water come from?

Cheswold's water is sourced from Groundwater. The city has 5 water systems serving approximately 3,318 residents.

What health violations has Cheswold's water system had?

Cheswold has 20 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. 24 violations remain unresolved.

Is Cheswold's groundwater at risk of contamination?

Cheswold 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 55 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 Cheswold's water compare to other cities?

Cheswold ranks #18 out of 43 cities in Delaware (better than 58% of state cities) and #7662 out of 15744 cities nationally (51th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.