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Water system · PWSID TX2200075

CITY OF SOUTHLAKE

SOUTHLAKE, TX · ~31,576 people served

Check your exact address → SOUTHLAKE overview
92
Excellent
PurityRadar safety score

PWSID

TX2200075

State

Texas

City

SOUTHLAKE

Population served

31,576

Primary source

SWP

Score history

▼ 8 points — the score moved from 100 to 92 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 92

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

PFOS

Perfluorooctanesulfonic acid

4 ppt

limit 4 ppt

Near EPA limit

PFHxS

Perfluorohexanesulfonic acid

4.8 ppt

limit 10 ppt

Below EPA limit

PFBA

8.1 ppt

limit —

No federal limit

PFBS

3.7 ppt

limit —

No federal limit

PFHxA

3.7 ppt

limit —

No federal limit

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

4

Violations on record

1

Unaddressed

1

Health-based

12

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Max contaminant level (MCL) · Total coliform health-based began Jan 2016 Resolved
Other · EPA contaminant 7000 began Jul 2003 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • State action · SIA Dec 2025
  • State action · SOX Aug 2016
  • State action · SIF Feb 2016
  • State action · SIE Jan 2016
  • State action · SIA Jan 2016
  • State action · SOX Jul 2004
  • State action · SIA Jun 2004
  • State action · SOX Jun 1993

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

1 station · latest May 2023

0.262 · max 0.479 mg/l as N · 100

Fluoride

1 station · latest Aug 2023

0.25 · max 0.32 mg/l · 75

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 TX2200075 — 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.