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Water system · PWSID CT1300021

HERITAGE WATER COMPANY

CLINTON, CT · ~7,300 people served

Check your exact address → CLINTON overview
91
Excellent
PurityRadar safety score

PWSID

CT1300021

State

Connecticut

City

CLINTON

Population served

7,300

Primary source

SWP

Score history

▼ 9 points — the score moved from 100 to 91 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 91

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 Aug 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.1 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFBS

3.2 ppt

limit —

No federal limit

Violations & enforcement

17

Violations on record

0

Unaddressed

6

Health-based

49

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2019. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Oct 2018 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2018 Resolved
Other · EPA contaminant 7000 began Aug 2017 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2003 Resolved
Monitoring & reporting · Total coliform began Sep 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1994 Resolved
Other · Total coliform began Jan 1994 Resolved
Monitoring & reporting · Total coliform began Nov 1993 Resolved

Recent enforcement actions

  • State action · SIE May 2019
  • State action · SIA May 2019
  • State action · SIF Apr 2019
  • State action · SIF Apr 2019
  • State action · SIE Jan 2019
  • State action · SIA Jan 2019
  • State action · SOX Nov 2018
  • State action · SOX Nov 2018

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

3 stations · latest Oct 2022

0.65 · max 1 mg/L · 53

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CT1300021 — 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.