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Community Water System · PWS MD0120012

City of Havre de Grace

Havre de Grace, Maryland 21078 - drinking water served from surface water sources to 14,000 people, tracked in EPA SDWIS and UCMR5.

14,000
People served
126
EPA violations
34
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 126 drinking-water violations at City of Havre de Grace, 27% of them health-based - above the Maryland per-system average.

126
Total EPA violations on record
27%
Health-based (MCL / treatment failure)
14,000
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: City of Havre de Grace

City of Havre de Grace is a local-owned community water system that delivers drinking water to 14,000 residents in Havre de Grace, Maryland (Harford County) through 4,500 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 126 total violations for this system , of which 34 (27%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 76 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is TTHM, recorded in 24 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 50 of 83 UCMR5-tested systems have reported PFAS detections (60.2%).

City of Havre de Grace's 126 violations sit above the Maryland average.

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
14,000
Total Violations
126
Health-Based Violations
34
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,500
County
Harford
School/Daycare
No
MCL Violations
30
Monitoring Violations
76
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 24 2016
Nitrate MR 6 2019
Fluoride MR 6 2010
Coliform (TCR) MCL 6 1995
CARBON, TOTAL TT 4 2023
Endrin MR 4 2024
Di(2-ethylhexyl) adipate MR 4 2024
Simazine MR 4 2024
Di(2-ethylhexyl) phthalate MR 4 2024
Atrazine MR 4 2024
LASSO MR 4 2024
Heptachlor MR 4 2024
HEXACHLOROBENZENE MR 4 2024
Hexachlorocyclopentadiene MR 4 2024
Methoxychlor MR 4 2024
Benzo(a)pyrene MR 4 2024
BHC-GAMMA MR 4 2024
Toxaphene MR 4 2024
Chlordane MR 4 2024
Heptachlor epoxide MR 4 2024
Public Notice Other 2 2024
Lead and Copper Rule MR 2 2014
TTHM MR 1 2011
Total Haloacetic Acids (HAA5) MR 1 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 8/8/2024 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/8/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/8/2024 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/8/2024 <6.00 ppt 6.00 ppt Not Detected
PFUnA 7/11/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFDA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 7/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFNA 7/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFOA 7/11/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeS 7/11/2024 <4.00 ppt 4.00 ppt Not Detected
NFDHA 7/11/2024 <20.00 ppt 20.00 ppt Not Detected
PFEESA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFPeA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
PFMPA 7/11/2024 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 7/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/11/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 7/11/2024 <2.00 ppt 2.00 ppt Not Detected
HFPO-DA 7/11/2024 <5.00 ppt 5.00 ppt Not Detected
PFHpS 7/11/2024 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 4/3/2025 <5.00 ppt 5.00 ppt Not Detected
PFTA 4/3/2025 <8.00 ppt 8.00 ppt Not Detected
8:2 FTS 4/3/2025 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 4/3/2025 <5.00 ppt 5.00 ppt Not Detected
PFNA 4/3/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 4/3/2025 <4.00 ppt 4.00 ppt Not Detected
PFOA 4/3/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFDoA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 4/3/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 4/3/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 4/3/2025 <2.00 ppt 2.00 ppt Not Detected
ADONA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 4/3/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 4/3/2025 <3.00 ppt 3.00 ppt Not Detected

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 City of Havre de Grace.

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 MD0120012 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
2024 Endrin MR 4 SDWIS / MD0120012 / 2005
2024 Di(2-ethylhexyl) adipate MR 4 SDWIS / MD0120012 / 2035
2024 Simazine MR 4 SDWIS / MD0120012 / 2037
2024 Di(2-ethylhexyl) phthalate MR 4 SDWIS / MD0120012 / 2039
2024 Atrazine MR 4 SDWIS / MD0120012 / 2050
2024 LASSO MR 4 SDWIS / MD0120012 / 2051
2024 Heptachlor MR 4 SDWIS / MD0120012 / 2065
2024 HEXACHLOROBENZENE MR 4 SDWIS / MD0120012 / 2274
2024 Hexachlorocyclopentadiene MR 4 SDWIS / MD0120012 / 2042
2024 Methoxychlor MR 4 SDWIS / MD0120012 / 2015
2024 Benzo(a)pyrene MR 4 SDWIS / MD0120012 / 2306
2024 BHC-GAMMA MR 4 SDWIS / MD0120012 / 2010
2024 Toxaphene MR 4 SDWIS / MD0120012 / 2020
2024 Chlordane MR 4 SDWIS / MD0120012 / 2959
2024 Heptachlor epoxide MR 4 SDWIS / MD0120012 / 2067

How City of Havre de Grace Compares

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

Metric City of Havre de Grace Maryland avg Federal benchmark
Total violations 126 18.8 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 34 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 14,000 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is City of Havre de Grace water safe to drink?
City of Havre de Grace (PWS ID: MD0120012) has 126 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 14,000 people using Surface Water sources.
How many people does City of Havre de Grace serve?
City of Havre de Grace serves 14,000 people in Havre de Grace, Maryland. It is a Local-owned system using Surface Water water sources with 4,500 service connections.
What type of violations does City of Havre de Grace have?
City of Havre de Grace has 126 total violations: 34 health-based violations (MCL exceedances or treatment failures), 76 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in City of Havre de Grace water?
No. City of Havre de Grace was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does City of Havre de Grace use?
City of Havre de Grace uses Surface Water 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.