TapGraded
F

BCWSA MAIN LOWER SOUTH

Warrington, PA · 52,621 served

BCWSA MAIN LOWER SOUTH serves 52,621 people in Warrington, PA. It has 5 health-based violations in the last 5 years. TapGraded gives this system an F.

Score breakdown

Health-based violations (5y)

5

Monitoring violations (5y)

5

Currently unaddressed

0

Overall score

30/100

Violation history (last 5 years)

2022
2023
2025
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 0 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOA 7.3 ppt over limit
0 ppt EPA MCL: 4 ppt
PFOS 6.9 ppt over limit
0 ppt EPA MCL: 4 ppt
PFHxS 4.8 ppt
0 ppt EPA MCL: 10 ppt
HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt

System details

System type
Community water system
Water source
Surface water purchased from another system
Ownership
Local government
Service connections
15,800

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Frequently asked questions

Is Warrington, PA tap water safe to drink?

BCWSA MAIN LOWER SOUTH has 5 health-based violations in the last 5 years. TapGraded gives this system an F.

Does BCWSA MAIN LOWER SOUTH have lead in its water?

The most recent 90th-percentile lead sample is 0 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in BCWSA MAIN LOWER SOUTH's water?

Yes — PFAS was detected at or above the EPA MCL for 2 of the tracked analytes.

Source: EPA SDWIS/ECHO · Data as of 2026Q2