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Water system · PWSID PA1460033

HORSHAM WATER&SEWER AUTHORITY

HORSHAM, PA · ~26,000 people served

Check your exact address → HORSHAM overview
25
Action needed
PurityRadar safety score

PWSID

PA1460033

State

Pennsylvania

City

HORSHAM

Population served

26,000

Primary source

SWP

Score history

▼ 75 points — the score moved from 100 to 25 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 25

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

PFOS

Perfluorooctanesulfonic acid

34 ppt

limit 4 ppt

Above EPA limit · 8.4×

PFOA

Perfluorooctanoic acid

18 ppt

limit 4 ppt

Above EPA limit · 4.4×

PFHxS

Perfluorohexanesulfonic acid

11 ppt

limit 10 ppt

Above EPA limit · 1.1×

Lithium

12,500 ppt

limit —

No federal limit

PFHxA

7.1 ppt

limit —

No federal limit

PFBA

5.9 ppt

limit —

No federal limit

PFBS

5.7 ppt

limit —

No federal limit

PFPeA

5.3 ppt

limit —

No federal limit

PFHpA

4.4 ppt

limit —

No federal limit

Violations & enforcement

193

Violations on record

0

Unaddressed

1

Health-based

38

Enforcement actions

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

Monitoring & reporting · EPA contaminant 4030 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 2037 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jan 2024 Resolved

Recent enforcement actions

  • State action · SOX May 2025
  • State action · SOX Nov 2024
  • State action · SIA Oct 2024
  • State action · SOX May 2024
  • State action · SIA Apr 2024
  • State action · SIA Apr 2024
  • State action · SOX Oct 2023
  • State action · SFJ Oct 2023

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

Arsenic

5 stations · latest Nov 2021

0.315 · max 0.34 ug/l · 5

Copper

5 stations · latest Nov 2021

1.26 · max 2.57 ug/l · 5

Fluoride

5 stations · latest Nov 2021

0.12 · max 0.13 mg/l · 5

Lead

5 stations · latest Nov 2021

0.0517 · max 0.083 ug/l · 5

Manganese

5 stations · latest Nov 2021

17.8 · max 22.8 ug/l · 5

Nitrate

5 stations · latest Nov 2021

0.45 · max 1.63 mg/l as N · 5

Uranium

5 stations · latest Nov 2021

1.9 · max 2.86 ug/l · 5

Atrazine

1 station · latest Nov 2021

5.35 · max 5.35 ng/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 PA1460033 — 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.