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Water system · PWSID MD0100018

TOWN OF MIDDLETOWN

MIDDLETOWN, MD · ~4,288 people served

Check your exact address → MIDDLETOWN overview
70
Good
PurityRadar safety score

PWSID

MD0100018

State

Maryland

City

MIDDLETOWN

Population served

4,288

Primary source

Groundwater

Score history

▼ 30 points — the score moved from 100 to 70 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 70

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

6.1 ppt

limit 4 ppt

Above EPA limit · 1.5×

PFOA

Perfluorooctanoic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFHxS

Perfluorohexanesulfonic acid

3.4 ppt

limit 10 ppt

Below EPA limit

PFBA

5.1 ppt

limit —

No federal limit

PFPeA

5.1 ppt

limit —

No federal limit

PFBS

4.9 ppt

limit —

No federal limit

PFHxA

3.3 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

Violations & enforcement

14

Violations on record

0

Unaddressed

3

Health-based

35

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2022. Official EPA record →

Monitoring · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Monitoring & reporting · Total coliform began Jul 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2008 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2008 Resolved
Monitoring & reporting · Total coliform began Jun 2008 Resolved
Monitoring & reporting · Nitrate began Jan 2008 Resolved
Monitoring & reporting · Total coliform began Nov 2005 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 1999 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 1999 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Recent enforcement actions

  • State action · SIA Feb 2022
  • State action · SIE Feb 2022
  • State action · SOX Dec 2021
  • State action · SOX Aug 2020
  • State action · SIA Feb 2019
  • State action · SIA Sep 2018
  • State action · SIA Sep 2017
  • State action · SOX Nov 2011

This profile is built from EPA public records for system MD0100018 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.