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ELK RIDGE LAKE

PWS ID: MD0210006 · HAGERSTOWN, Maryland 21740

ELK RIDGE LAKE serves 120 people in HAGERSTOWN, Maryland using Groundwater water sources. It has 49 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ELK RIDGE LAKE

ELK RIDGE LAKE is a private-owned community water system that delivers drinking water to 120 residents in HAGERSTOWN, Maryland (Washington County) through 38 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 49 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 46 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 4 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Maryland, EPA tracks 3,215 public water systems serving 6,070,211 people, with 60,496 cumulative violations and 18,132 health-based violations on record. About 80% of systems in the state carry at least one violation, and state-wide the average per system is 18.8 violations. ELK RIDGE LAKE's 49 violations sit above the Maryland average. Statewide, 50 of 83 UCMR5-tested systems have reported PFAS detections (60.2%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
120
Total Violations
49
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
38
County
Washington
School/Daycare
No
MCL Violations
0
Monitoring Violations
46
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 4 2020
1,2-Dichloroethane MR 2 2002
1,1,1-Trichloroethane MR 2 2002
Carbon tetrachloride MR 2 2002
1,1,2-Trichloroethane MR 2 2002
CHLOROBENZENE MR 2 2002
Benzene MR 2 2002
cis-1,2-Dichloroethylene MR 2 2002
Xylenes, Total MR 2 2002
DICHLOROMETHANE MR 2 2002
o-Dichlorobenzene MR 2 2002
p-Dichlorobenzene MR 2 2002
Vinyl chloride MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002
1,2,4-Trichlorobenzene MR 2 2002
1,2-Dichloropropane MR 2 2002
Tetrachloroethylene MR 2 2002
Styrene MR 2 2002
Trichloroethylene MR 2 2002
Toluene MR 2 2002
1,1-Dichloroethylene MR 2 2002
Ethylbenzene MR 2 2002
Consumer Confidence Rule Other 1 2009

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for ELK RIDGE LAKE.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID MD0210006 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Maryland Drinking Water Authority

Maryland's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find MD regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2020 Lead and Copper Rule MR 4 SDWIS / MD0210006 / 5000
2009 Consumer Confidence Rule Other 1 SDWIS / MD0210006 / 7000
2002 1,2-Dichloroethane MR 2 SDWIS / MD0210006 / 2980
2002 1,1,1-Trichloroethane MR 2 SDWIS / MD0210006 / 2981
2002 Carbon tetrachloride MR 2 SDWIS / MD0210006 / 2982
2002 1,1,2-Trichloroethane MR 2 SDWIS / MD0210006 / 2985
2002 CHLOROBENZENE MR 2 SDWIS / MD0210006 / 2989
2002 Benzene MR 2 SDWIS / MD0210006 / 2990
2002 cis-1,2-Dichloroethylene MR 2 SDWIS / MD0210006 / 2380
2002 Xylenes, Total MR 2 SDWIS / MD0210006 / 2955
2002 DICHLOROMETHANE MR 2 SDWIS / MD0210006 / 2964
2002 o-Dichlorobenzene MR 2 SDWIS / MD0210006 / 2968
2002 p-Dichlorobenzene MR 2 SDWIS / MD0210006 / 2969
2002 Vinyl chloride MR 2 SDWIS / MD0210006 / 2976
2002 trans-1,2-Dichloroethylene MR 2 SDWIS / MD0210006 / 2979

How ELK RIDGE LAKE Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric ELK RIDGE LAKE Maryland avg Federal benchmark
Total violations 49 18.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 5.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 120 1,888 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,215 regulated public water systems in Maryland.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is ELK RIDGE LAKE water safe to drink? ▼
ELK RIDGE LAKE (PWS ID: MD0210006) has 49 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 120 people using Groundwater sources.
How many people does ELK RIDGE LAKE serve? ▼
ELK RIDGE LAKE serves 120 people in HAGERSTOWN, Maryland. It is a Private-owned system using Groundwater water sources with 38 service connections.
What type of violations does ELK RIDGE LAKE have? ▼
ELK RIDGE LAKE has 49 total violations: 0 health-based violations (MCL exceedances or treatment failures), 46 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ELK RIDGE LAKE water? ▼
No PFAS testing data is available for ELK RIDGE LAKE under the EPA's UCMR5 monitoring program.
What water source does ELK RIDGE LAKE use? ▼
ELK RIDGE LAKE uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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