Water Quality in Bryn Mawr, PA (19335)
EPA violation data for public water systems serving ZIP code 19335.
Active Health Violations
10 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 97% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
53,629
Population
45
Water Systems
110
Violations (5yr)
10
Health-Based
Location
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Water Systems Serving This Area (45)
Philadelphia Suburban Water Co
Surface water 130,000 people served
0 violations
Aqua Pa West Chester
All resolved Surface water 48,600 people served
30 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Pa American Royersford
Surface water 46,847 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb) ✓
Downingtown Water Authority
All resolved Surface water 9,900 people served
23 violations (5yr)
· All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓
Community Utilites Westgate
Purchased surface water 2,668 people served
0 violations
Marsh Creek State Park
Groundwater 1,630 people served
11 violations (5yr)
Pickering Valley Elem Sch
Groundwater 720 people served
0 violations
West Bradford Elem School
Groundwater 700 people served
0 violations
Springton Manor Elementary
All resolved Groundwater 600 people served
2 violations (5yr)
· All resolved
Copper tested: 3310 ppb (limit: 1300 ppb)
Budd Company Trailer Division
Groundwater 600 people served
0 violations
Brandywine Wallace Elem
5 health-based Groundwater 600 people served
21 violations (5yr)
· 5 health-based
Brandywine Area Water Company
Groundwater 597 people served
0 violations
Beaton Community Water Co
Groundwater 500 people served
0 violations
Cullens Country Cupboard #2
Groundwater 500 people served
0 violations
Paradise Farm Camps
3 health-based Groundwater 260 people served
7 violations (5yr)
· 3 health-based · All resolved
East Brandywine Baptist Church
Groundwater 250 people served
0 violations
Shady Acres Campground
Groundwater 200 people served
0 violations
Carter Mobilehome Park
Groundwater 200 people served
0 violations
Hopewell United Methodist Ch
Groundwater 200 people served
0 violations
Ramblewood Mobilehome Park
Groundwater 192 people served
0 violations
Glen Loch West Devereux
Groundwater 170 people served
0 violations
Downingtown Industrial School
Groundwater 150 people served
0 violations
East Brandywine Twp Park
All resolved Groundwater 150 people served
5 violations (5yr)
· All resolved
Londontowne Square
All resolved Groundwater 120 people served
1 violation (5yr)
· All resolved
Whitford Water Company
Groundwater 120 people served
0 violations
Mrs Mikes
Groundwater 100 people served
0 violations
Pepperidge Farm
Groundwater 100 people served
0 violations
Chadds Ford Plaza
Groundwater 100 people served
0 violations
Golden Mart And Sly & Tom
1 health-based Groundwater 100 people served
1 violation (5yr)
· 1 health-based · All resolved
Creative Kids Of Downingtown
Groundwater 85 people served
7 violations (5yr)
Mama Lenas
Groundwater 75 people served
0 violations
East Brandywine Fire Co
Groundwater 75 people served
0 violations
Perkins Park
Groundwater 56 people served
0 violations
Mother Goose Nursery School
Groundwater 50 people served
0 violations
Ts Pub Inc
Groundwater 50 people served
0 violations
Lyndell Country Store
Groundwater 50 people served
0 violations
Pepperidge Farm
Groundwater 37 people served
0 violations
Bright Light Early Learning Ct
Groundwater 33 people served
0 violations
Croppers Market Inc
Groundwater 30 people served
0 violations
Dnb First Chadds Ford
Groundwater 25 people served
0 violations
Chester County Food Bank
Groundwater 25 people served
0 violations
Northbrook Marketplace
Groundwater 25 people served
0 violations
Esposito'S Butcher Shop
Groundwater 25 people served
0 violations
Sals Pizza
Groundwater 25 people served
0 violations
Catering By John Lowe
1 health-based Groundwater 25 people served
2 violations (5yr)
· 1 health-based · All resolved
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
19 violations
All resolved
Groundwater RuleHealth-Based
1 violation
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
8 violations
Has active
Public NoticeMonitoring
6 violations
All resolved
ChlorineMonitoring
Used to disinfect water — generally safe at regulated levels.
4 violations
All resolved
DalaponMonitoring
2 violations
All resolved
Di(2-ethylhexyl) phthalateMonitoring
2 violations
All resolved
NitriteMonitoring
Similar to nitrate — harmful to infants at high levels.
2 violations
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
2 violations
All resolved
E. COLIMonitoring
2 violations
Has active
LASSOMonitoring
1 violation
All resolved
PentachlorophenolMonitoring
1 violation
All resolved
Total Polychlorinated Biphenyls (PCB)Monitoring
1 violation
All resolved
2,3,7,8-TCDDMonitoring
1 violation
All resolved
BHC-GAMMAMonitoring
1 violation
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
1 violation
All resolved
PicloramMonitoring
1 violation
All resolved
Benzo(a)pyreneMonitoring
1 violation
All resolved
SimazineMonitoring
1 violation
All resolved
HeptachlorMonitoring
1 violation
All resolved
GlyphosateMonitoring
1 violation
All resolved
ChlordaneMonitoring
1 violation
All resolved
HEXACHLOROBENZENEMonitoring
1 violation
All resolved
ETHYLENE DIBROMIDEMonitoring
1 violation
All resolved
EndothallMonitoring
1 violation
All resolved
2,4-DMonitoring
1 violation
All resolved
MethoxychlorMonitoring
1 violation
All resolved
Heptachlor epoxideMonitoring
1 violation
All resolved
HexachlorocyclopentadieneMonitoring
1 violation
All resolved
CarbofuranMonitoring
1 violation
All resolved
EndrinMonitoring
1 violation
All resolved
DinosebMonitoring
1 violation
All resolved
AtrazineMonitoring
1 violation
All resolved
OXAMYLMonitoring
1 violation
All resolved
Di(2-ethylhexyl) adipateMonitoring
1 violation
All resolved
2,4,5-TPMonitoring
1 violation
All resolved
ToxapheneMonitoring
1 violation
All resolved
DiquatMonitoring
1 violation
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
1 violation
All resolved
TTHMMonitoring
1 violation
All resolved
p-DichlorobenzeneMonitoring
1 violation
All resolved
TolueneMonitoring
1 violation
All resolved
DICHLOROMETHANEMonitoring
1 violation
All resolved
1,1-DichloroethyleneMonitoring
1 violation
All resolved
EthylbenzeneMonitoring
1 violation
All resolved
StyreneMonitoring
1 violation
All resolved
1,2,4-TrichlorobenzeneMonitoring
1 violation
All resolved
o-DichlorobenzeneMonitoring
1 violation
All resolved
1,1,1-TrichloroethaneMonitoring
1 violation
All resolved
1,2-DichloropropaneMonitoring
1 violation
All resolved
cis-1,2-DichloroethyleneMonitoring
1 violation
All resolved
Xylenes, TotalMonitoring
1 violation
All resolved
TetrachloroethyleneMonitoring
1 violation
All resolved
CHLOROBENZENEMonitoring
1 violation
All resolved
BenzeneMonitoring
1 violation
All resolved
1,2-DichloroethaneMonitoring
1 violation
All resolved
trans-1,2-DichloroethyleneMonitoring
1 violation
All resolved
Carbon tetrachlorideMonitoring
1 violation
All resolved
1,1,2-TrichloroethaneMonitoring
1 violation
All resolved
TrichloroethyleneMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jun 2025
Copper (Cu)
Exceeds limit3310 ppb measured
Action level: 1300 ppb
Sampled: Jun 2025
How Does This Compare?
Bryn Mawr (19335) has more violations than 97% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 110.
Fewer violations 97th 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.
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) 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.