Water Quality in Bryn Mawr, PA (19403)
EPA violation data for public water systems serving ZIP code 19403.
Active Health Violations
2 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 100% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
44,017
Population
33
Water Systems
947
Violations (5yr)
2
Health-Based
Location
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Water Systems Serving This Area (33)
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) ✓
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) ✓
Pa American Audubon
All resolved Purchased surface water 8,200 people served
810 violations (5yr)
· All resolved
Lead tested: 4 ppb (limit: 15 ppb) ✓
Waterhaven
Purchased surface water 3,500 people served
0 violations
Methacton School District
Groundwater 2,200 people served
0 violations
Mt Village Mhp
Groundwater 771 people served
2 violations (5yr)
Hereford Est Mhp
All resolved Groundwater 710 people served
4 violations (5yr)
· All resolved
Freedom Valley Ymca Swim Club
Groundwater 400 people served
0 violations
Awc Valley Forge Crossing Mhp
All resolved Groundwater 250 people served
56 violations (5yr)
· All resolved
Creekview Mhp
1 health-based Groundwater 200 people served
17 violations (5yr)
· 1 health-based · All resolved
Fairview Resturant
Groundwater 150 people served
0 violations
L Providence Gen Washington
Groundwater 130 people served
0 violations
Peppes Pizza And Grill Llc
All resolved Groundwater 100 people served
2 violations (5yr)
· All resolved
Am Communications
Groundwater 100 people served
0 violations
Harrisonville Mobile Home Park
Groundwater 100 people served
6 violations (5yr)
Lead tested: 5.15 ppb (limit: 15 ppb) ✓
Norrongton Corporation
Groundwater 92 people served
0 violations
Woodland Mhp
All resolved Groundwater 61 people served
3 violations (5yr)
· All resolved
Knights Of Columbus
Groundwater 50 people served
0 violations
Stray Dog Tavern
All resolved Groundwater 50 people served
6 violations (5yr)
· All resolved
Audubon Park Association
Groundwater 41 people served
0 violations
Conservatory Of Music & Dance
All resolved Groundwater 40 people served
1 violation (5yr)
· All resolved
Kaps Korner
Groundwater 35 people served
0 violations
Fairview Village Shop. Center
Groundwater 25 people served
0 violations
Shannondell Farms
Groundwater 25 people served
0 violations
Westover Country Club
Groundwater 25 people served
0 violations
Towamencin Tavern
Groundwater 25 people served
0 violations
Avas
Groundwater 25 people served
0 violations
Montg. Co. Emer. Oper. Ctr.
Groundwater 25 people served
0 violations
Uncle Elmer'S Luncheonette
Groundwater 25 people served
0 violations
Contaminants Found
Groundwater RuleHealth-Based
12 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
12 violations
All resolved
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
12 violations
All resolved
Radium-228Monitoring
10 violations
All resolved
Radium-226Monitoring
10 violations
All resolved
TetrachloroethyleneMonitoring
10 violations
All resolved
DICHLOROMETHANEMonitoring
10 violations
All resolved
Xylenes, TotalMonitoring
10 violations
All resolved
1,2,4-TrichlorobenzeneMonitoring
10 violations
All resolved
1,1,2-TrichloroethaneMonitoring
10 violations
All resolved
TrichloroethyleneMonitoring
10 violations
All resolved
BenzeneMonitoring
10 violations
All resolved
trans-1,2-DichloroethyleneMonitoring
10 violations
All resolved
EthylbenzeneMonitoring
10 violations
All resolved
StyreneMonitoring
10 violations
All resolved
1,2-DichloroethaneMonitoring
10 violations
All resolved
1,1,1-TrichloroethaneMonitoring
10 violations
All resolved
1,1-DichloroethyleneMonitoring
10 violations
All resolved
TolueneMonitoring
10 violations
All resolved
cis-1,2-DichloroethyleneMonitoring
10 violations
All resolved
CHLOROBENZENEMonitoring
10 violations
All resolved
Carbon tetrachlorideMonitoring
10 violations
All resolved
o-DichlorobenzeneMonitoring
10 violations
All resolved
1,2-DichloropropaneMonitoring
10 violations
All resolved
p-DichlorobenzeneMonitoring
10 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
9 violations
All resolved
Public NoticeMonitoring
8 violations
All resolved
NitriteMonitoring
Similar to nitrate — harmful to infants at high levels.
8 violations
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
8 violations
All resolved
2,3,7,8-TCDDMonitoring
8 violations
All resolved
TTHMMonitoring
6 violations
All resolved
EndothallMonitoring
5 violations
All resolved
2,4,5-TPMonitoring
5 violations
All resolved
ETHYLENE DIBROMIDEMonitoring
5 violations
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
5 violations
All resolved
LASSOMonitoring
4 violations
All resolved
CarbofuranMonitoring
4 violations
All resolved
Di(2-ethylhexyl) phthalateMonitoring
4 violations
All resolved
EndrinMonitoring
4 violations
All resolved
PicloramMonitoring
4 violations
All resolved
Benzo(a)pyreneMonitoring
4 violations
All resolved
Di(2-ethylhexyl) adipateMonitoring
4 violations
All resolved
BHC-GAMMAMonitoring
4 violations
All resolved
GlyphosateMonitoring
4 violations
All resolved
ChlordaneMonitoring
4 violations
All resolved
PentachlorophenolMonitoring
4 violations
All resolved
HexachlorocyclopentadieneMonitoring
4 violations
All resolved
MethoxychlorMonitoring
4 violations
All resolved
Heptachlor epoxideMonitoring
4 violations
All resolved
DalaponMonitoring
4 violations
All resolved
2,4-DMonitoring
4 violations
All resolved
HEXACHLOROBENZENEMonitoring
4 violations
All resolved
SimazineMonitoring
4 violations
All resolved
HeptachlorMonitoring
4 violations
All resolved
DinosebMonitoring
4 violations
All resolved
ToxapheneMonitoring
4 violations
All resolved
DiquatMonitoring
4 violations
All resolved
OXAMYLMonitoring
4 violations
All resolved
AtrazineMonitoring
4 violations
All resolved
Total Polychlorinated Biphenyls (PCB)Monitoring
4 violations
All resolved
Combined UraniumMonitoring
4 violations
All resolved
CYANIDEMonitoring
3 violations
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
3 violations
All resolved
ChloriteMonitoring
2 violations
All resolved
Surface Water Treatment RuleMonitoring
2 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
2 violations
Has active
E. COLIMonitoring
2 violations
Has active
Beryllium, TotalMonitoring
1 violation
All resolved
MercuryMonitoring
1 violation
All resolved
CadmiumMonitoring
1 violation
All resolved
ArsenicMonitoring
A naturally occurring element that can cause cancer and other health effects at high levels.
1 violation
All resolved
ChromiumMonitoring
1 violation
All resolved
NickelMonitoring
1 violation
All resolved
SeleniumMonitoring
1 violation
All resolved
Antimony, TotalMonitoring
1 violation
All resolved
Thallium, TotalMonitoring
1 violation
All resolved
BariumMonitoring
1 violation
All resolved
FluorideMonitoring
1 violation
All resolved
CARBON, TOTALMonitoring
1 violation
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jun 2025
How Does This Compare?
Bryn Mawr (19403) has more violations than 100% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 947.
Fewer violations 100th 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.