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Middle River, MD Tap Water Quality 2026

Water quality report for Middle River, MD — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Middle River's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: City Of Baltimore PWSID: MD0300002 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.74 ppb, 18% of the action level and no violations are open. No PFAS was detected.

B

Middle River earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 2.74 ppb — 18% of the federal action level
PFAS tested, none detected
32 violations since 2015, 4 health-based
No violations currently open
Middle River's lead level vs. all Maryland community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.74 ppb — 18% of the federal action level
✓ Lower lead than 60% of Maryland utilities
Population Served
33161
~424600 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
32 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
18% of EPA action level
2.74 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.74 ppb, 18% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 81 UG/L 0.080 mg/L 2026 Archived
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023 Resolved
Toxaphene MONITORING AND REPORTING — 0.003 mg/L 2023 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
Chlordane MONITORING AND REPORTING — 0.002 mg/L 2023 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2023 Resolved
Public Notice OTHER — — 2022 Resolved
Revised Total Coliform Rule MCL EXCEEDANCE — — 2022 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 63 UG/L 0.060 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 60.6 UG/L 0.060 mg/L 2015 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2015 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2015 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2015 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2015 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2015 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2015 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2015 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2015 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

32 violations are on record since 2015, of which 4 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Baltimore
PWSID MD0300002
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 33,161
Service connections 424,600
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Middle River tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.74 ppb, 18% of the action level.
Does Middle River water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Middle River? ▼
City Of Baltimore (PWSID MD0300002). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2026-03-20. No significant deficiencies were recorded.

What Should Middle River Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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