CITY OF ROUND ROCK

ROUND ROCK, TX · ~130,662 people served

Check your exact address → ROUND ROCK overview

100

Excellent

PurityRadar safety score

PWSID

TX2460003

State

Texas

City

ROUND ROCK

Population served

130,662

Primary source

Surface water

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

Lithium

9,620 ppt

limit —

No federal limit

PFBS

6.7 ppt

limit —

No federal limit

PFBA

5.1 ppt

limit —

No federal limit

PFHxA

3.7 ppt

limit —

No federal limit

PFPeA

3 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2015. Official EPA record →

Monitoring & reporting · Nitrate began Jul 2011 Resolved

Treatment technique · EPA contaminant 0200 health-based began Dec 2004 Resolved

Monitoring & reporting · EPA contaminant 0300 began Nov 2003 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2003 Resolved

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2002 Resolved

Recent enforcement actions

State action · SOX Apr 2015
State action · SOX Sep 2013
State action · SOX Nov 2006
State action · SOX Feb 2005
State action · SFO Jul 2004
State action · SFO Dec 2003
State action · SIF May 2003
State action · SIE Mar 2003

This profile is built from EPA public records for system TX2460003 — 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.