Water Quality in Waukesha, WI (53066)

EPA violation data for public water systems serving ZIP code 53066.

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

37,558

Population

137

Water Systems

163

Violations (5yr)

57

Health-Based

Location

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Water Systems Serving This Area (137)

Waukesha Water Utility

54 health-based
Purchased surface water 70,718 people served
69 violations (5yr) · 54 health-based
Lead tested: 0.56 ppb (limit: 15 ppb)

West Bend Waterworks

All resolved
Groundwater 31,752 people served
62 violations (5yr) · All resolved
Lead tested: 23 ppb (limit: 15 ppb)

Watertown Waterworks

All resolved
Groundwater 23,945 people served
2 violations (5yr) · All resolved
Lead tested: 11 ppb (limit: 15 ppb)

Germantown Water Utility

1 health-based
Groundwater 20,027 people served
2 violations (5yr) · 1 health-based
Lead tested: 1.7 ppb (limit: 15 ppb)

Oconomowoc Waterworks

Groundwater 15,805 people served
0 violations
Lead tested: 6.8 ppb (limit: 15 ppb)

Concord General Store

Groundwater 807 people served
0 violations

Cross Point Community Church

Groundwater 764 people served
0 violations

Olin-Sang-Ruby Union Institute - Main System

Groundwater 704 people served
0 violations

Olin-Sang-Ruby Union Institute - Bath House

Groundwater 700 people served
0 violations

Olin-Sang-Ruby Union Institute - Dining Hall

Groundwater 700 people served
0 violations

Dotties Home Bakery & Liquor

Groundwater 567 people served
0 violations

Abundant Life Apostolic Church

All resolved
Groundwater 543 people served
1 violation (5yr) · All resolved
Lead tested: 2.69 ppb (limit: 15 ppb)

Holy Trinity Church & Learning Center

Groundwater 505 people served
0 violations
Lead tested: 0.12 ppb (limit: 15 ppb)

Summit School

Groundwater 500 people served
0 violations

Stone Bank School

Groundwater 470 people served
0 violations
Lead tested: 3.2 ppb (limit: 15 ppb)

Lake Country Classical Academy East Campus

Groundwater 410 people served
0 violations
Lead tested: 6.5 ppb (limit: 15 ppb)

Brown Street Market Place

Groundwater 384 people served
0 violations

Okauchee School

Groundwater 382 people served
0 violations

Wildcat Lodge 1

Groundwater 310 people served
0 violations

Ixonia Elementary School

All resolved
Groundwater 310 people served
1 violation (5yr) · All resolved
Lead tested: 2.15 ppb (limit: 15 ppb)

Lord Of Life Lutheran Church

Groundwater 302 people served
0 violations

Lake Area Alano Club

Groundwater 300 people served
0 violations

Sunnyfield Acres

Groundwater 300 people served
0 violations
Lead tested: 0.17 ppb (limit: 15 ppb)

Little Dumplings Early Learning Center

Groundwater 258 people served
0 violations
Lead tested: 3.25 ppb (limit: 15 ppb)

Town & Country Ymca

Groundwater 232 people served
0 violations

Genesee Lake School South

Groundwater 230 people served
0 violations
Lead tested: 0.35 ppb (limit: 15 ppb)

El Poblano Mexican-American Grill

Groundwater 220 people served
0 violations

Rogers Mem Hosp - Main Hospital

Groundwater 220 people served
0 violations
Lead tested: 0.89 ppb (limit: 15 ppb)

Grace Bible Church

Groundwater 205 people served
0 violations

Kiltie Inc

All resolved
Groundwater 200 people served
2 violations (5yr) · All resolved

Dotties Citgo - Hartland

Groundwater 155 people served
0 violations

Kettle Moraine Hospital

Groundwater 145 people served
0 violations

White Stone Community Church

Groundwater 144 people served
0 violations

St Johns Lutheran Church

Groundwater 126 people served
0 violations

La Bell Golf Club

Groundwater 120 people served
0 violations

St Johns Evangelical Lutheran Church

Groundwater 119 people served
0 violations

Genesee Lake School North

All resolved
Groundwater 110 people served
1 violation (5yr) · All resolved
Lead tested: 1.15 ppb (limit: 15 ppb)

Ocean Dreams

Groundwater 106 people served
0 violations

Associated Bank Of Oconomowoc

Groundwater 104 people served
0 violations

Mapleway Bowl & Restaurant

1 health-based
Groundwater 100 people served
1 violation (5yr) · 1 health-based · All resolved

Oconomowoc Lake Club

Groundwater 100 people served
0 violations

Lucky Chuckys Beach Bar And Grill

Groundwater 95 people served
0 violations

Angels Grace Hospice

Groundwater 90 people served
0 violations
Lead tested: 0.28 ppb (limit: 15 ppb)

Mr Slows Saloon

Groundwater 83 people served
0 violations

Daystar Properties

All resolved
Groundwater 80 people served
1 violation (5yr) · All resolved
Lead tested: 2.25 ppb (limit: 15 ppb)

The Happy Place

Groundwater 79 people served
0 violations

Gemma K'S Southern Social

Groundwater 79 people served
0 violations

Kuhtz General Store

Groundwater 78 people served
0 violations

Humdingers

Groundwater 77 people served
0 violations

Former Meadowview School

Groundwater 75 people served
0 violations

Lakeland Oldsmobile

Groundwater 74 people served
0 violations

Bank Five Nine- Brown Street

Groundwater 70 people served
0 violations

Stanton Place I

Groundwater 66 people served
0 violations
Lead tested: 4.45 ppb (limit: 15 ppb)

Rogers Mem Hosp - Kubly

Groundwater 61 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) Copper tested: 1520 ppb (limit: 1300 ppb)

Rogers Mem Hosp - Cedar Ridge Main

Groundwater 61 people served
0 violations
Lead tested: 1.45 ppb (limit: 15 ppb) Copper tested: 1950 ppb (limit: 1300 ppb)

Dillons Prairie House

Groundwater 60 people served
0 violations

Harmony Hills Mh Village 2

Groundwater 60 people served
0 violations

Hallett Veterinary Hospital

Groundwater 57 people served
0 violations

Oconomowoc Golf Club Clubhouse

Groundwater 55 people served
0 violations

Deertrak Golf Club

Groundwater 54 people served
0 violations

Oconomowoc Golf Club Restrooms

Groundwater 54 people served
0 violations

Erics Breezy Point

Groundwater 53 people served
0 violations

Kims Pizza Pub

Groundwater 53 people served
0 violations

Hideaway Bar & Grill

Groundwater 53 people served
0 violations

Faith Baptist Church - Oconomowoc

Groundwater 52 people served
0 violations

Country Drive In

Groundwater 50 people served
0 violations

Rons Cozy Corner

Groundwater 50 people served
0 violations

Private Party Inn

Groundwater 50 people served
0 violations

Cambridge Place Of Delafield

1 health-based
Groundwater 50 people served
4 violations (5yr) · 1 health-based
Lead tested: 0.2 ppb (limit: 15 ppb)

Ewald Chevrolet Buick Geo

Groundwater 50 people served
0 violations

Premold Corporation

Groundwater 46 people served
0 violations
Lead tested: 0.4 ppb (limit: 15 ppb)

Concord Town Hall

Groundwater 45 people served
0 violations

Brewfinity Brewing Co

Groundwater 45 people served
0 violations

Rogers Mem Hosp - Hrc

Groundwater 45 people served
0 violations
Lead tested: 0.54 ppb (limit: 15 ppb)

Genesee Lake Rd Park

Groundwater 40 people served
0 violations

Pepinos Restaurant

Groundwater 40 people served
0 violations

Rogers Mem Hosp - Ladish Co Foundation Center

Groundwater 40 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Preston Pines

All resolved
Groundwater 38 people served
1 violation (5yr) · All resolved
Lead tested: 2.31 ppb (limit: 15 ppb)

Venice Beach Club

Groundwater 37 people served
0 violations

Caddy Shack

Groundwater 36 people served
0 violations

Muskego Lake Aire Apartments

Groundwater 35 people served
0 violations
Lead tested: 0.72 ppb (limit: 15 ppb)

Summit Town Hall

Groundwater 35 people served
0 violations

Le Rendez-Vous At The Point

Groundwater 34 people served
0 violations

Redemptorist Retreat Center

Groundwater 34 people served
0 violations

Kick Switch Bar And Grill

Groundwater 33 people served
0 violations

Oconomowoc Golf Course Maintenance Building

Groundwater 32 people served
0 violations

Stanton Place Ii

All resolved
Groundwater 32 people served
1 violation (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Rogers Mem Hosp - Delafield 16 Bed

Groundwater 30 people served
0 violations

Bon Bree

Groundwater 30 people served
0 violations

Okauchee Lake Roadhouse

Groundwater 28 people served
0 violations

Kennys Killin Time

Groundwater 27 people served
0 violations

Rogers Mem Hosp - Delafield 8 Bed

Groundwater 27 people served
0 violations

Kennys

Groundwater 27 people served
0 violations

St Catherines Church

Groundwater 27 people served
0 violations

Nineteenth Hole

Groundwater 26 people served
0 violations

Whiskey Waters

Groundwater 26 people served
0 violations

M Anderson American Legion Post 399

Groundwater 26 people served
0 violations

Golden Lake Pub

Groundwater 26 people served
0 violations

Rogers Mem Hosp - Herrington Bldg

Groundwater 26 people served
0 violations

Silver Lake Auto Center

Groundwater 26 people served
0 violations

Marks Country Market

Groundwater 25 people served
0 violations

Community Based Residential Facility

Groundwater 25 people served
0 violations

Wittnebels

Groundwater 25 people served
0 violations

Redemptorist Fathers Novitiate

Groundwater 25 people served
0 violations

Millers Sandy Beach

All resolved
Groundwater 25 people served
2 violations (5yr) · All resolved

Guss Cottages

Groundwater 25 people served
0 violations

Concord Park

Groundwater 25 people served
0 violations

Valley Motel

All resolved
Groundwater 25 people served
12 violations (5yr) · All resolved

Evergreens

Groundwater 25 people served
0 violations

Stockley Usa Union Grove

Groundwater 25 people served
0 violations

Mr Dees Inc

Groundwater 25 people served
0 violations

Pepinos

Groundwater 25 people served
0 violations

Northwest Machine & Grinding

Groundwater 25 people served
0 violations

St Johns Lutheran Church Cemetary

Groundwater 25 people served
0 violations

Oconomowoc Town Hall

Groundwater 25 people served
0 violations

Lake & Country Tire

Groundwater 25 people served
0 violations

Anchor Resort

Groundwater 25 people served
0 violations

Sormrud Rooms

Groundwater 25 people served
0 violations

La Belle Motel

Groundwater 25 people served
0 violations

Debs Place

Groundwater 25 people served
0 violations

Beach House

Groundwater 25 people served
0 violations

Wildflowers Restaurant

Groundwater 25 people served
0 violations

Clemens North American Resort

Groundwater 25 people served
0 violations

Lakeside Chalet

Groundwater 25 people served
0 violations

Hwy K Dental Office

Groundwater 25 people served
0 violations

Paganica Golf Course

Groundwater 25 people served
0 violations

Mariners Saloon

Groundwater 25 people served
0 violations

Olin-Sang-Ruby Union Institute - Pool Well

Groundwater 25 people served
0 violations

Stonebank M H P

Groundwater 25 people served
0 violations

Kids Land Day Care

Groundwater 25 people served
0 violations

Trimmers Family Hair Center The

Groundwater 25 people served
0 violations

Oconomowoc Sportsmans Club

Groundwater 24 people served
0 violations

St Pauls Episcopal Church

Groundwater 16 people served
0 violations

N5701 Frontier Rd Property

All resolved
Groundwater 8 people served
1 violation (5yr) · All resolved
Lead tested: 2.9 ppb (limit: 15 ppb)

Lake Country Foods

Groundwater 5 people served
0 violations

Rolling Hills Country Club & Maintenance Bldg

Groundwater 0
0 violations

Ashippun Elementary School

Groundwater 0
0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

12 violations
All resolved
Combined Radium (-226 and -228)Health-Based
11 violations
All resolved
Gross Alpha, Excl. Radon and UHealth-Based
9 violations
All resolved
LEAD AND COPPER RULE REVISIONSHealth-Based
3 violations
All resolved
Public NoticeMonitoring
11 violations
Has active
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

4 violations
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

3 violations
All resolved
NitriteMonitoring

Similar to nitrate — harmful to infants at high levels.

2 violations
All resolved
StyreneMonitoring
1 violation
All resolved
1,1-DichloroethyleneMonitoring
1 violation
All resolved
SeleniumMonitoring
1 violation
All resolved
Nitrate-NitriteMonitoring
1 violation
All resolved
LASSOMonitoring
1 violation
All resolved
EndothallMonitoring
1 violation
All resolved
ToxapheneMonitoring
1 violation
All resolved
FluorideMonitoring
1 violation
All resolved
ETHYLENE DIBROMIDEMonitoring
1 violation
All resolved
Aldicarb sulfoxideMonitoring
1 violation
All resolved
TolueneMonitoring
1 violation
All resolved
ChromiumMonitoring
1 violation
All resolved
PentachlorophenolMonitoring
1 violation
All resolved
DICHLOROMETHANEMonitoring
1 violation
All resolved
2,4,5-TPMonitoring
1 violation
All resolved
ChlordaneMonitoring
1 violation
All resolved
1,2-DIBROMO-3-CHLOROPROPANEMonitoring
1 violation
All resolved
NickelMonitoring
1 violation
All resolved
p-DichlorobenzeneMonitoring
1 violation
All resolved
Carbon tetrachlorideMonitoring
1 violation
All resolved
OXAMYLMonitoring
1 violation
All resolved
1,1,2-TrichloroethaneMonitoring
1 violation
All resolved
GlyphosateMonitoring
1 violation
All resolved
CarbofuranMonitoring
1 violation
All resolved
MercuryMonitoring
1 violation
All resolved
Thallium, TotalMonitoring
1 violation
All resolved
DalaponMonitoring
1 violation
All resolved
TetrachloroethyleneMonitoring
1 violation
All resolved
TrichloroethyleneMonitoring
1 violation
All resolved
2,4-DMonitoring
1 violation
All resolved
MethoxychlorMonitoring
1 violation
All resolved
SimazineMonitoring
1 violation
All resolved
DinosebMonitoring
1 violation
All resolved
PicloramMonitoring
1 violation
All resolved
1,2-DichloroethaneMonitoring
1 violation
All resolved
CHLOROBENZENEMonitoring
1 violation
All resolved
BenzeneMonitoring
1 violation
All resolved
Aldicarb sulfoneMonitoring
1 violation
All resolved
1,2-DichloropropaneMonitoring
1 violation
All resolved
HEXACHLOROBENZENEMonitoring
1 violation
All resolved
Antimony, TotalMonitoring
1 violation
All resolved
ArsenicMonitoring

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

1 violation
All resolved
AldicarbMonitoring
1 violation
All resolved
EthylbenzeneMonitoring
1 violation
All resolved
EndrinMonitoring
1 violation
All resolved
AtrazineMonitoring
1 violation
All resolved
trans-1,2-DichloroethyleneMonitoring
1 violation
All resolved
BHC-GAMMAMonitoring
1 violation
All resolved
HeptachlorMonitoring
1 violation
All resolved
cis-1,2-DichloroethyleneMonitoring
1 violation
All resolved
BariumMonitoring
1 violation
All resolved
Vinyl chlorideMonitoring
1 violation
All resolved
Heptachlor epoxideMonitoring
1 violation
All resolved
Xylenes, TotalMonitoring
1 violation
All resolved
CadmiumMonitoring
1 violation
All resolved
Beryllium, TotalMonitoring
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
DiquatMonitoring
1 violation
All resolved
HexachlorocyclopentadieneMonitoring
1 violation
All resolved
TTHMMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0.12 ppb measured Action level: 15 ppb

Sampled: Sep 2025

Copper (Cu)

Exceeds limit
1520 ppb measured Action level: 1300 ppb

Sampled: Jun 2022

How Does This Compare?

Waukesha (53066) has more violations than 98% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 163.

Fewer violations 98th 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.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

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.

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