Water Quality in Bryn Mawr, PA (19440)

EPA violation data for public water systems serving ZIP code 19440.

Past Health-Based Violations

1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 46 monitoring/reporting violations.

More violations than 90% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

19,431

Population

22

Water Systems

47

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (22)

Philadelphia Suburban Water Co

Surface water 900,000 people served
0 violations

Aqua Pa Main System

1 health-based
Surface water 822,600 people served
30 violations (5yr) · 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Phila Sub Water Co

Surface water 759,135 people served
0 violations

North Penn Water Authority

Purchased surface water 91,941 people served
0 violations
Lead tested: 0.5 ppb (limit: 15 ppb)

Pa American Norristown

All resolved
Surface water 88,885 people served
2 violations (5yr) · All resolved
Lead tested: 2 ppb (limit: 15 ppb)

Lorimar Park

Groundwater 75,000 people served
0 violations

North Wales Water Authority

All resolved
Surface water 72,496 people served
8 violations (5yr) · All resolved
Lead tested: 1.6 ppb (limit: 15 ppb)

Lower Bucks Co Joint Mun Auth

All resolved
Surface water 63,007 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Hatfield Boro Water Auth

Groundwater 5,300 people served
0 violations

Hatfield Quality Meats Inc

Groundwater 1,850 people served
0 violations

A M Kulp Elem Sch

Groundwater 475 people served
0 violations

Village Scene Mobilehome Park

Groundwater 340 people served
0 violations

Ametek-Hunter Spring Div.

Groundwater 250 people served
0 violations

Oak Grove Park Mhp

All resolved
Groundwater 130 people served
5 violations (5yr) · All resolved
Lead tested: 29.6 ppb (limit: 15 ppb)

Vincent'S Pizza

Groundwater 125 people served
0 violations

Pub Ii Inc

Groundwater 75 people served
0 violations

Tall Oaks Nursery School

Groundwater 62 people served
0 violations

Hatfield Fitness Center

Groundwater 50 people served
0 violations

Hatfield Church Of Brethern

Groundwater 50 people served
0 violations

Twin Woods Golf Club

Groundwater 25 people served
0 violations

Twin Woods Golf Course

Groundwater 25 people served
0 violations

Watershed Convenience Store

Groundwater 25 people served
0 violations

Contaminants Found

Groundwater RuleHealth-Based
6 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
3 violations
All resolved
ChloriteMonitoring
2 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
2 violations
All resolved
Surface Water Treatment RuleMonitoring
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
All resolved
TTHMMonitoring
2 violations
All resolved
Public NoticeMonitoring
1 violation
All resolved
CadmiumMonitoring
1 violation
All resolved
Beryllium, TotalMonitoring
1 violation
All resolved
MercuryMonitoring
1 violation
All resolved
ArsenicMonitoring

A naturally occurring element that can cause cancer and other health effects at high levels.

1 violation
All resolved
SeleniumMonitoring
1 violation
All resolved
Thallium, TotalMonitoring
1 violation
All resolved
BariumMonitoring
1 violation
All resolved
FluorideMonitoring
1 violation
All resolved
ChromiumMonitoring
1 violation
All resolved
NickelMonitoring
1 violation
All resolved
Antimony, TotalMonitoring
1 violation
All resolved
CYANIDEMonitoring
1 violation
All resolved
CARBON, TOTALMonitoring
1 violation
All resolved
2,3,7,8-TCDDMonitoring
1 violation
All resolved
Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jun 2025

How Does This Compare?

Bryn Mawr (19440) has more violations than 90% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 47.

Fewer violations 90th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Whole House Carbon Filter

A solid baseline for improving overall water quality. Reduces chlorine, sediment, and many common contaminants throughout your entire home.

Targets:Chlorine, Sediment, Taste & Odor

Look for:NSF/ANSI 42 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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