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Water system · PWSID OH7101412

ROSS COUNTY WATER CO INC

CHILLICOTHE, OH · ~35,345 people served

Check your exact address → CHILLICOTHE overview
100
Excellent
PurityRadar safety score

PWSID

OH7101412

State

Ohio

City

CHILLICOTHE

Population served

35,345

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

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

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 Sep 2024). Levels in parts per trillion (ppt).

PFPeA

3.1 ppt

limit —

No federal limit

Violations & enforcement

8

Violations on record

0

Unaddressed

0

Health-based

7

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 1990. Official EPA record →

Monitoring & reporting · Arsenic began Aug 1986 Resolved
Monitoring & reporting · Barium began Aug 1986 Resolved
Monitoring & reporting · Cadmium began Aug 1986 Resolved
Monitoring & reporting · Chromium (total) began Aug 1986 Resolved
Monitoring & reporting · Fluoride began Aug 1986 Resolved
Monitoring & reporting · Selenium began Aug 1986 Resolved
Monitoring & reporting · Nitrate began Aug 1986 Resolved
Monitoring & reporting · Antimony began Aug 1986 Resolved

Recent enforcement actions

  • State action · SIF Feb 1990
  • State action · SOX Jan 1990
  • State action · SFJ Jan 1990
  • State action · SIF Sep 1989
  • State action · SFJ Sep 1989
  • State action · SFJ Aug 1988
  • State action · SIA Jan 1984

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

Manganese

8 stations · latest Dec 2024

52.4 · max 187 ug/L · 45

Arsenic

6 stations · latest Oct 2024

2.56 · max 2.91 ug/L · 24

Copper

5 stations · latest Oct 2024

2.67 · max 4.74 ug/L · 18

Lead

2 stations · latest Apr 2024

2.27 · max 2.35 ug/L · 2

Nitrate

1 station · latest Jun 2023

0.238 · max 0.238 mg/L · 1

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 OH7101412 — 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.