WaterVerge

Is Rantoul, MD Tap Water Safe to Drink?

Graded A-, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

770 residents served 2 water systems PWSID: IL0190080
Overall Score
89.1 / 100
Violations
4 active
Last Updated
May 2026
Source
Purchased ground water
#14 of 107 in Maryland Top 20% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.1/100
waterverge.com
A- 89.1/100

Rantoul, MD — Water Quality Report

Rantoul's drinking water received a grade of A- (89.1 out of 100), indicating good water quality. The city's 2 water systems serve approximately 770 residents using purchased ground water.

Lead levels were measured at 1.1 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 14 violations on record, including 1 health-based violation. 4 remain unresolved.

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

What to know about Rantoul's water

Rantoul ranks #14 out of 107 cities in Maryland for water quality, placing it above average in the state.

Rantoul purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition.

As a small community water system, Rantoul may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
89.1 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.1/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.1 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Purchased ground water.
Water Safety

Is Rantoul, MD water safe to drink?

Concerns Identified

Rantoul's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 770 residents using groundwater (wells).

4
Active Violations
1.1 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Rantoul

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Rantoul's water quality assessment. Grade: A- (89.1/100).

Violation
2 drinking water violations recorded

Contaminants: Total Haloacetic Acids (HAA5), TTHM.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
HURRICANE SANDY

Federal disaster declaration (FEMA DR-4091). Hurricane event — may have impacted local water infrastructure.

Disaster
HURRICANE SANDY

Federal disaster declaration (FEMA DR-3349). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Within Limits
Detected: 1.1 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Rantoul's water system has 14 total violations on record, including 1 health-based violation. 4 remain unresolved. 2 violations were issued in the last 5 years.

MROtherMCL
Most recent violations:
Jan 2021 Total Haloacetic Acids (HAA5) Resolved
Jan 2021 TTHM Resolved
Jan 2017 Lead and Copper Rule Open
Jul 2016 Consumer Confidence Rule Open
Jul 2015 Consumer Confidence Rule Open

Flood & environmental risk

Anne Arundel County has experienced 10 federally declared disasters since 1971. 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 South Fork Jabez Branch, Little Patuxent River, Patuxent River, Patuxent R At Gov Bridge Natural Area Nr Bowie.

HURRICANE SANDY
Hurricane FEMA DR-4091
HURRICANE SANDY
Hurricane FEMA DR-3349
REMNANTS OF TROPICAL STORM LEE
Flood FEMA DR-4038

Where does Rantoul's water come from?

Rantoul's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 770 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include South Fork Jabez Branch (river), Little Patuxent River (river), Patuxent River (river), Patuxent R At Gov Bridge Natural Area Nr Bowie (river).

What Rantoul residents can do

Install a water filter

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

Rantoul'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
1.1 ppb
EPA Action Level: 15 ppb · 7% of limit
Safe Level
Compliance Record

Violation summary

14
Total violations
1
Health-based
4
Active / unresolved
Jan 2021
Most recent violation
Compliance Record

Violations & advisories

14 Total
4 Active
1 Health-based
10 Resolved
2 SNC
Violations by category
Total Coliform Rule
6
Consumer Confidence Rule
3
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Stage 1 Disinfectants and Disinfection Byproducts Rule
2
Lead and Copper Rule
1
Jan 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2016 Active
Consumer Confidence Rule
Other Violation 0
Jul 2015 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jan 2021 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2023
Jan 2021 Resolved
TTHM
Monitoring & Reporting
SNC Monitoring & Reporting Resolved Dec 2023
Nov 2012 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2012
Oct 2012 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2012
Jun 2009 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2009
Jun 2009 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2009
Apr 2009 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2009
Dec 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2003
Oct 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2003
Sep 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2003
Environmental Risk

Flood & disaster history

10
Declared disasters
Nov 2012
Most recent
Hurricane
Most common type

Anne Arundel County has experienced 10 federally declared disasters since 1971. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Nov 2012
HURRICANE SANDY
Hurricane FEMA #4091
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3349
Oct 2011
REMNANTS OF TROPICAL STORM LEE
Flood FEMA #4038
Aug 2011
HURRICANE IRENE
Hurricane FEMA #3335
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3251
Sep 2003
HURRICANE ISABEL
Hurricane FEMA #1492

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.1 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 2004 (0.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Groundwater
Operator
Private
Population Served
770
Water Systems
2
Water Source

Where Rantoul's water comes from

Purchased Groundwater

Rantoul purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Water quality depends on both the wholesaler's treatment standards and the condition of Rantoul's local distribution pipes and storage facilities.

Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment.

The system is operated by private ownership and serves approximately 770 people through 2 water systems.

Local Hydrology

Water bodies near Rantoul

Rantoul is located near 4 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

South Fork Jabez Branch
river
Little Patuxent River
river
Patuxent River
river
Patuxent R At Gov Bridge Natural Area Nr Bowie
river
Infrastructure

Water systems serving Rantoul

System Name PWSID Population Source
HERITAGE OF RANTOUL IL0190080 500 GWP
MAPLEWOOD MAC LLC IL0190660 270 GWP
Regional Comparison

How Rantoul compares

Full Maryland rankings →

Rantoul's score of 89.1/100 is above the average of 60/100 among major Maryland cities. It outscores 7 of 10 nearby cities.

Rantoul (this city)
89.1
Laurel
95
Baltimore
39.8
Frederick
37.5
Maryland avg
60
City Profile

About Rantoul, MD

Economic Profile
$143,202
Median Income
$482,588
Median Home Value
$2,031/mo
Median Rent
4.1%
Unemployment
Community
37.1
Median Age
1,715
People / sq mi
59.6%
College Educated
81.2%
Homeownership
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Frequently asked questions

Is Rantoul, MD tap water safe to drink?

Rantoul's water quality earned a grade of A- (89.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #14 out of 107 cities tested in Maryland.

What contaminants are in Rantoul's water?

Lead was measured at 1.1 ppb (90th percentile). 14 violations are on record.

How is Rantoul'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 Rantoul?

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

Where does Rantoul's water come from?

Rantoul's water is sourced from Purchased ground water. The city has 2 water systems serving approximately 770 residents.

What health violations has Rantoul's water system had?

Rantoul has 1 health-based violation on record. The most recent violation was recorded in January 2021. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 4 violations remain unresolved.

Is Rantoul's groundwater at risk of contamination?

Rantoul 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 14 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 Rantoul's water compare to other cities?

Rantoul ranks #14 out of 107 cities in Maryland (better than 87% of state cities) and #3052 out of 15744 cities nationally (81th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.