WaterVerge

Is Sherwood Forest, MD Tap Water Safe to Drink?

Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 1 water system PWSID: MD0020035
Overall Score
91.6 / 100
Violations
1 active
Last Updated
May 2026
Source
Groundwater
#6 of 107 in Maryland Top 10% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
91.6/100
waterverge.com
A 91.6/100

Sherwood Forest, MD — Water Quality Report

Sherwood Forest's drinking water received a grade of A (91.6 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 1,200 residents using groundwater.

Lead levels were measured at 0.6 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 3 violations on record, including 0 health-based violations. 1 remains unresolved.

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

What to know about Sherwood Forest's water

Sherwood Forest ranks #6 out of 107 cities in Maryland for water quality, placing it one of the best in the state.

Sherwood Forest 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.

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

Quality Breakdown

Water quality score

See methodology →
91.6 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
44.6/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.6 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: Groundwater.
Water Safety

Is Sherwood Forest, MD water safe to drink?

Use Caution

Sherwood Forest's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (91.6/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 1,200 residents using groundwater (wells).

1
Active Violations
0.6 ppb
Lead (90th %ile)
8 events
Disaster History

Recent water quality updates for Sherwood Forest

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Sherwood Forest's water quality assessment. Grade: A (91.6/100).

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.

Violation
1 drinking water violation recorded

Contaminants: Coliform (TCR).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Key contaminant findings

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

Lead Within Limits
Detected: 0.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Sherwood Forest's water system has 3 total violations on record, including 0 health-based violations. 1 remain unresolved.

MR
Most recent violations:
Sep 2007 Coliform (TCR) Resolved
Jan 1994 Lead and Copper Rule Resolved

Flood & environmental risk

Montgomery County has experienced 8 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 Patuxent River Below Brighton Dam Near Brighton, Hawlings River, Patuxent River Near Laurel, L Pax Riv Trib Above Wilde Lake, Potomac River.

HURRICANE SANDY
Hurricane FEMA DR-4091
HURRICANE SANDY
Hurricane FEMA DR-3349
HURRICANE IRENE
Hurricane FEMA DR-3335

Where does Sherwood Forest's water come from?

Sherwood Forest's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,200 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Patuxent River Below Brighton Dam Near Brighton (river), Hawlings River (river), Patuxent River Near Laurel (river), L Pax Riv Trib Above Wilde Lake (river), Potomac River (river).

What Sherwood Forest residents can do

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

Sherwood Forest'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
0.6 ppb
EPA Action Level: 15 ppb · 4% of limit
Safe Level
Compliance Record

Violation summary

3
Total violations
0
Health-based
1
Active / unresolved
Sep 2007
Most recent violation
Compliance Record

Violations & advisories

3 Total
1 Active
0 Health-based
2 Resolved
Violations by category
Total Coliform Rule
1
Lead and Copper Rule
1
Active
Compliance Violation
Monitoring 0
Sep 2007 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2007
Jan 1994 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved May 1995
Environmental Risk

Drought conditions

D2 — severe drought

Anne Arundel 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.

4
Weeks at D2+ (current streak)
10.4%
Months in D2+ (last 30y)
7
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

8
Declared disasters
Nov 2012
Most recent
Hurricane
Most common type

Montgomery County has experienced 8 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
Aug 2011
HURRICANE IRENE
Hurricane FEMA #3335
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3251
Sep 2003
HURRICANE ISABEL
Hurricane FEMA #1492
Oct 1975
HEAVY RAINS & FLOODING
Flood FEMA #489

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.6 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 increased by 0.6 ppb from 1993 (0.0 ppb) to 2024 (0.6 ppb).
Contaminant Rankings

See how Sherwood Forest compares by contaminant

Explore where Sherwood Forest ranks among all Maryland cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
1,200
Water Systems
1
Water Source

Where Sherwood Forest's water comes from

Groundwater

Sherwood Forest'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 1,200 people through 1 water system.

Local Hydrology

Water bodies near Sherwood Forest

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

Patuxent River Below Brighton Dam Near Brighton
river
Hawlings River
river
Patuxent River Near Laurel
river
L Pax Riv Trib Above Wilde Lake
river
Potomac River
river
Infrastructure

Water systems serving Sherwood Forest

System Name PWSID Population Source
SHERWOOD FOREST WATER COMPANY MD0020035 1,200 GW
Regional Comparison

How Sherwood Forest compares

Full Maryland rankings →

Sherwood Forest's score of 91.6/100 is above the average of 60/100 among major Maryland cities. It outscores 8 of 10 nearby cities.

Sherwood Forest (this city)
91.6
Laurel
95
Baltimore
39.8
Frederick
37.5
Maryland avg
60
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Frequently asked questions

Is Sherwood Forest, MD tap water safe to drink?

Sherwood Forest's water quality earned a grade of A (91.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #6 out of 107 cities tested in Maryland.

What contaminants are in Sherwood Forest's water?

Lead was measured at 0.6 ppb (90th percentile). 3 violations are on record.

How is Sherwood Forest'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 Sherwood Forest?

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

Where does Sherwood Forest's water come from?

Sherwood Forest's water is sourced from Groundwater. The city has 1 water system serving approximately 1,200 residents.

Is Sherwood Forest's groundwater at risk of contamination?

Sherwood Forest 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 3 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 Sherwood Forest's water compare to other cities?

Sherwood Forest ranks #6 out of 107 cities in Maryland (better than 94% of state cities) and #1603 out of 15744 cities nationally (90th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Sherwood Forest's small water system affect quality?

Sherwood Forest's system serves approximately 1,200 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 3 violations on record.