Water Quality in Friendship, WI (53934)
EPA violation data for public water systems serving ZIP code 53934.
No Health-Based Violations
None of the 79 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are8 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 62% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
4,520
Population
79
Water Systems
8
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (79)
Friendship Waterworks
Purchased groundwater 781 people served
3 violations (5yr)
Lead tested: 2.31 ppb (limit: 15 ppb) ✓
Petenwell Co Park 10-West Pump House
Groundwater 410 people served
0 violations
Petenwell Co Park 9
Groundwater 405 people served
0 violations
Petenwell Co Park Atv Campground
Groundwater 400 people served
0 violations
Castle Rock Co Park 2-Shop
Groundwater 210 people served
0 violations
Petenwell Co Park 11
Groundwater 205 people served
0 violations
Grand Marsh Elementary School
Groundwater 170 people served
0 violations
Westwind Estates
Groundwater 160 people served
0 violations
Lead tested: 0.64 ppb (limit: 15 ppb) ✓
Castle Rock Elementary School
Groundwater 154 people served
0 violations
Four Seasons Mini Mart
Groundwater 154 people served
0 violations
Grand Marsh Elementary School
Groundwater 128 people served
0 violations
Dammas Diner
Groundwater 115 people served
0 violations
Lead tested: 5.15 ppb (limit: 15 ppb) ✓
Roche A Cri Elementary School
Groundwater 100 people served
0 violations
Dellwood Pavilion
Groundwater 100 people served
0 violations
Boomers Pub Inc
Groundwater 100 people served
0 violations
Lilypad The
Groundwater 78 people served
0 violations
Petenwell Co Park 2
Groundwater 75 people served
0 violations
Petenwell Co Park 5
Groundwater 75 people served
0 violations
Petenwell Co Park 4
Groundwater 75 people served
0 violations
Petenwell Co Park 3
Groundwater 75 people served
0 violations
Petenwell Co Park 7
Groundwater 75 people served
0 violations
Hillside Bar & Grill
Groundwater 75 people served
0 violations
Petenwell Co Park 6
Groundwater 75 people served
0 violations
Petenwell Co Park 1
Groundwater 75 people served
0 violations
Pineland Elementary School
Groundwater 70 people served
0 violations
Castle Rock Co Park-East Well
Groundwater 68 people served
0 violations
Spot In The Woods Bar & Grill Llc
Groundwater 60 people served
0 violations
Crazy Taco
Groundwater 55 people served
0 violations
Overflow Lounge The
Groundwater 54 people served
0 violations
Mos Bar & Grill
Groundwater 52 people served
0 violations
Roche A Cri Inn
Groundwater 50 people served
0 violations
Shari Sales
Groundwater 50 people served
0 violations
Brooks Elementary School
Groundwater 50 people served
0 violations
Mill Of Arkdale Llc The
Groundwater 37 people served
0 violations
Mound View Resort & Rstrnt 3
Groundwater 35 people served
0 violations
Mound View Resort & Rstrnt 2
Groundwater 35 people served
0 violations
The Western House
Groundwater 34 people served
0 violations
Tap That By The Lake
Groundwater 28 people served
0 violations
Ox-Oxford Wi The
All resolved Groundwater 27 people served
4 violations (5yr)
· All resolved
Westfield Family Medical Ctr
Groundwater 27 people served
0 violations
Country Deli & Grocery
Groundwater 26 people served
0 violations
Inn Of The Pines
Groundwater 26 people served
0 violations
Rezas Lakeview 2
Groundwater 26 people served
0 violations
Drunken Beaver Lounge & Chophouse
Groundwater 26 people served
0 violations
Melody Waves Resort 2
Groundwater 26 people served
0 violations
Blondies
Groundwater 25 people served
0 violations
Inn Of The Pines-Duplicate
Groundwater 25 people served
0 violations
Dellwood Pines Cottages 1
Groundwater 25 people served
0 violations
Patrick Lake Co Park 1
Groundwater 25 people served
0 violations
Rustic Ridge Resort
Groundwater 25 people served
0 violations
Michaels Landing - Bar
Groundwater 25 people served
0 violations
Two Brothers Restaurant
Groundwater 25 people served
0 violations
Michaels Landing - Campground
Groundwater 25 people served
0 violations
Castle Rock Lake Motel 3
Groundwater 25 people served
0 violations
Twin Creek Nursery
Groundwater 25 people served
0 violations
Adams Co Arrowhead Park
Groundwater 25 people served
0 violations
Petenwell Co Park 8
Groundwater 25 people served
0 violations
Kingdom Hall Of Jehovahs Witnesses
Groundwater 25 people served
0 violations
Waters Edge Resort
Groundwater 25 people served
0 violations
Steiners Lake View Resort 2
Groundwater 25 people served
0 violations
Duck Creek Lodge
Groundwater 25 people served
0 violations
Rustic Ridge Resort Cmpgd
All resolved Groundwater 25 people served
1 violation (5yr)
· All resolved
Camelot Coffee
Groundwater 25 people served
0 violations
Akorn Inn
Groundwater 25 people served
0 violations
Castle Rock Co Park 7-Pines
Groundwater 25 people served
0 violations
Castle Rock Co Park 3-North End
Groundwater 25 people served
0 violations
Castle Rock Co Park 1-Office
Groundwater 25 people served
0 violations
Melody Waves Resort 1
Groundwater 25 people served
0 violations
Dellwood Pines Cottages 2
Groundwater 25 people served
0 violations
Kingdom Hall Jehovahs Wit
Groundwater 25 people served
0 violations
Castle Rock Co Park 5-Office
Groundwater 25 people served
0 violations
United In Christ Lutheran Ch
Groundwater 25 people served
0 violations
Castle Rock Co Park 8 Shower
Groundwater 25 people served
0 violations
Castle Rock Co Park 6-Fish Cleaning
Groundwater 25 people served
0 violations
Castle Rock Lake Motel 2
Groundwater 25 people served
0 violations
Hiawatha Motel
Groundwater 25 people served
0 violations
Camelot Motel 1
Groundwater 25 people served
0 violations
Tds Trapline
Groundwater 20 people served
0 violations
Castle Rock Lake Motel 1
Groundwater 2 people served
0 violations
Contaminants Found
Revised Total Coliform RuleMonitoring
Missed testing deadlines — not a detection of bacteria.
4 violations
All resolved
LEAD AND COPPER RULE REVISIONSMonitoring
1 violation
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
1 violation
All resolved
NitrateMonitoring
At high levels, nitrate can cause blue baby syndrome in infants.
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit5.15 ppb measured
Action level: 15 ppb
Sampled: Jun 2025
How Does This Compare?
Friendship (53934) has more violations than 62% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 8, most of which are monitoring/reporting issues.
Fewer violations 62th percentile More violations
Water Filter Recommendations
No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.