Water Quality in Duluth, MN (55731)
EPA violation data for public water systems serving ZIP code 55731.
Active Health Violations
20 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 96% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
5,361
Population
197
Water Systems
93
Violations (5yr)
20
Health-Based
Location
Loading map...
Water Systems Serving This Area (197)
Duluth
Surface water 86,859 people served
0 violations
Lead tested: 8 ppb (limit: 15 ppb) ✓
Ely
2 health-based Surface water 3,258 people served
5 violations (5yr)
· 2 health-based · All resolved
Lead tested: 5 ppb (limit: 15 ppb) ✓
Burntside Lodge
All resolved Surface water 254 people served
1 violation (5yr)
· All resolved
Bear Head Lake State Park
Groundwater 200 people served
0 violations
North American Bear Center
Groundwater 200 people served
0 violations
Ymca Camp Widjiwagan
3 health-based Surface water 160 people served
4 violations (5yr)
· 3 health-based · All resolved
Silver Rapids Lodge
1 health-based Groundwater 130 people served
2 violations (5yr)
· 1 health-based · All resolved
Veterans On The Lake Resort
Groundwater 120 people served
0 violations
Camp Van Vac
Groundwater 115 people served
0 violations
Northern Tier High Adventure-Bsa
2 health-based Groundwater 110 people served
9 violations (5yr)
· 2 health-based
Canadian Border Outfitters
Groundwater 100 people served
0 violations
River Point Resort & Outfitting Co.
Groundwater 100 people served
0 violations
Deer Ridge Resort
Groundwater 80 people served
0 violations
White Iron Beach Resort
Groundwater 75 people served
0 violations
Custom Cabin Rental
Groundwater 63 people served
0 violations
Whiteface Campground Usfs
Groundwater 62 people served
0 violations
Acm Wilderness Field Station
Groundwater 60 people served
0 violations
Kawishiwi Lodge Inc.
All resolved Groundwater under influence of surface water 60 people served
1 violation (5yr)
· All resolved
Northernair Lodge
Groundwater 60 people served
0 violations
Shagawa Inn
Groundwater 54 people served
0 violations
Big Lake Wilderness Lodge
All resolved Surface water 51 people served
2 violations (5yr)
· All resolved
Camp Voyageur
Groundwater 50 people served
0 violations
Kingdom Hall Of Jehovah'S Witnesses
Groundwater 50 people served
0 violations
Latourell'S Resort And Outfitters
Groundwater 50 people served
0 violations
Pine Point Lodge
Groundwater 50 people served
0 violations
Voyageur Outward Bound School
Groundwater 50 people served
0 violations
Lodge Of Whispering Pines
5 health-based Surface water 45 people served
28 violations (5yr)
· 5 health-based
Northwind Lodge
Groundwater 45 people served
0 violations
Snowbank Lodge And Outfitters
Groundwater 40 people served
0 violations
Whiteface Concession
Groundwater 40 people served
0 violations
Canoe Country Cabins & Campground
Groundwater 40 people served
0 violations
Williams & Hall Outfitters
All resolved Surface water 40 people served
1 violation (5yr)
· All resolved
Lake View Lodge
Groundwater under influence of surface water 38 people served
17 violations (5yr)
Shagawa Inn - 165 Ft Well
Groundwater 35 people served
0 violations
Wilderness Bay Lodge
1 health-based Surface water 35 people served
2 violations (5yr)
· 1 health-based · All resolved
Moats Resort
Groundwater 35 people served
0 violations
Woodenfrog State Campground
All resolved Purchased surface water 35 people served
2 violations (5yr)
· All resolved
Whiteface Campground #2 Usfs
Groundwater 34 people served
0 violations
Shagawa Inn - 90 Ft Well
Groundwater 34 people served
0 violations
Whiteface Campground #4 Usfs
Groundwater 34 people served
0 violations
Whiteface Campground #3 Usfs
Groundwater 31 people served
0 violations
Moose Track Adventures
Groundwater 30 people served
0 violations
Beaver Lodge
Groundwater 30 people served
0 violations
Two Island Lake Campground South Usfs
Groundwater 28 people served
0 violations
Kainz Logging
Groundwater 28 people served
0 violations
Fenske Lake Cabins
Surface water 27 people served
0 violations
Flour Lake Campground West Usfs
Groundwater 26 people served
0 violations
Trails End Campground Usfs
1 health-based Groundwater 25 people served
1 violation (5yr)
· 1 health-based · All resolved
Dayton Canoe Outfitters
Groundwater 25 people served
0 violations
Ninemile Lake Campground Usfs
Groundwater 25 people served
0 violations
Moose Lake Wilderness Ct
Groundwater 25 people served
0 violations
Outdoor Learning Center
Groundwater 25 people served
0 violations
Sawbill Gs
Groundwater 25 people served
0 violations
Norway Point Picnic Ground
Groundwater 25 people served
0 violations
East Bearskin W
Groundwater 25 people served
0 violations
Jacques The Voyageur
Groundwater 25 people served
0 violations
Garden Lake Resort
Groundwater 25 people served
0 violations
Samz Place
Groundwater 25 people served
0 violations
Olson Bay Resort
Groundwater 25 people served
0 violations
Deer Trail Lodge
Groundwater 25 people served
0 violations
South Kawishiwi Campground #2 Usfs
Groundwater 25 people served
0 violations
Cold Springs-Superior Nat'L Forest Usfs
Groundwater 25 people served
0 violations
Baker Lake Campground
Groundwater 25 people served
0 violations
Two Island North
Groundwater 25 people served
0 violations
Flour Lake Campground East Usfs
Groundwater 25 people served
0 violations
Fenske Lake Campground Usfs
Groundwater 25 people served
0 violations
Hubachek Wilderness Research Center
Groundwater 25 people served
0 violations
Sand Lake Guard Station Usfs
Groundwater 25 people served
0 violations
Perent Rd Spring
Groundwater 25 people served
0 violations
Echo Lake Campground Usfs
Groundwater 25 people served
0 violations
Seagull Guard Station
Groundwater 25 people served
0 violations
Wintergreen Dogsled Lodge
Groundwater 25 people served
0 violations
Cadotte Lake Campground Usfs
Groundwater 25 people served
0 violations
Seagull Guard Station Usfs
Groundwater 25 people served
0 violations
Divide Lake Campround Usfs
Groundwater 25 people served
0 violations
Flathorn Lake Picnic Ground Usfs
Groundwater 25 people served
0 violations
Flathorn Well-Superior National Forest
Groundwater 25 people served
0 violations
Echo Trail Lodge
Groundwater 25 people served
0 violations
South Kawishiwi Campground #1
Groundwater 25 people served
0 violations
Cadotte Lake Campground #2 Usfs
Groundwater 25 people served
0 violations
Iron Lake Campground Usfs
Groundwater 25 people served
0 violations
Hidden Valley Ski Area
Groundwater 25 people served
0 violations
Snowbank Enterprise Inc
Groundwater 25 people served
0 violations
Norway Point Picnic Ground
Groundwater 25 people served
0 violations
Sawbill Lake Campground Usfs
Groundwater 25 people served
0 violations
Two Island South
Groundwater 25 people served
0 violations
Piney Ridge Camp
Groundwater 25 people served
0 violations
Vermilion Falls Usfs
Groundwater 25 people served
0 violations
Quetico Superior Outfttrs
Groundwater 25 people served
0 violations
Kawishiwi Experiment Station Usfs
Groundwater 25 people served
0 violations
Wilderness Canoe Trips
Groundwater 25 people served
0 violations
Wagon Wheel Resort
Groundwater 25 people served
0 violations
Three Deer Haven Bed & Breakfast
Groundwater 25 people served
0 violations
Moats Resort
Groundwater 25 people served
0 violations
Sawbill Spring-Superior National Forest
Groundwater 25 people served
0 violations
Tanglewood Trail Resort
Groundwater 25 people served
0 violations
Outdoor Adventures
Groundwater 25 people served
0 violations
White Pine Picnic Ground
Groundwater 25 people served
0 violations
Steger Center
Groundwater 25 people served
0 violations
Creek Ridge Lodge
Groundwater under influence of surface water 25 people served
0 violations
Timber Trail Resort
Groundwater 25 people served
0 violations
Boundary Waters Outfitters
Groundwater 25 people served
0 violations
Emma'S Bed & Breakfast
Groundwater 25 people served
0 violations
Two Island Lake Campground North Usfs
Groundwater 25 people served
0 violations
Tamarack Resort
Groundwater 25 people served
0 violations
Whiteface Picnic Ground Usfs
Groundwater 25 people served
0 violations
Lodge Of Wispering Pines
Groundwater 25 people served
0 violations
Pocahantas Lodge
Surface water 25 people served
0 violations
Vermilion Falls Usfs
Groundwater 25 people served
0 violations
Sawbill Lake Campground #3 Usfs
Groundwater 25 people served
0 violations
Crescent Lake Campground #1 Usfs
Groundwater 25 people served
0 violations
Living Water Retreat
Groundwater 25 people served
0 violations
Kimball Lake Campground Usfs
Groundwater 25 people served
0 violations
Fall Lake Campground Usfs
Groundwater 25 people served
0 violations
Dumbbell Lake Picnic Ground
Groundwater 25 people served
0 violations
Echo Trail Outfitters
Purchased surface water 25 people served
0 violations
The Swamp
Groundwater 25 people served
0 violations
Idington Spring
Groundwater 25 people served
0 violations
Canadian Border Lodge
Groundwater 25 people served
0 violations
Temperance River Campground-Superior Nf
Groundwater 25 people served
0 violations
Sawbill Guard Station Usfs
Groundwater 25 people served
0 violations
Pfeiffer Lake Campground Usfs
Groundwater 25 people served
0 violations
Section House-Superior Nat'L Forest Usfs
Groundwater 25 people served
0 violations
Eagle Mountain
Groundwater 25 people served
0 violations
Tofte Ranger Station-Superior Nat Forest
Groundwater 25 people served
0 violations
Canoe Country Cabins And Campground
Groundwater 25 people served
0 violations
Superior Forest Lodge Campground
Groundwater 25 people served
0 violations
Jasper Lake Resort
Groundwater 25 people served
0 violations
Devils Track Campground Usfs
Groundwater 25 people served
0 violations
Forest Gate Resort
Groundwater 25 people served
0 violations
Whiteface Picnic
Groundwater 25 people served
0 violations
Little Isabella River Campground Usfs
Groundwater 25 people served
0 violations
Ely Municipal Airport
Groundwater 25 people served
0 violations
Espland'S Cabins
Groundwater 25 people served
0 violations
Canadian Border Lodge
Groundwater 25 people served
0 violations
Pine Point Lodge
Groundwater 25 people served
0 violations
East Bearskin Lake Campground East
Groundwater 25 people served
0 violations
North Country Lodge, Inc
Surface water 25 people served
0 violations
Canadian Wtrs Fl Lk Base
Groundwater 25 people served
0 violations
Johnson'S Wilderness Canoe Trips
Groundwater 25 people served
0 violations
Jeanette Lake Campground
Groundwater 25 people served
0 violations
Cliff Wold'S Canoe Trip Outfitting Co.
Groundwater 25 people served
0 violations
Trails End
Groundwater 25 people served
0 violations
Echo Shores Resort
1 health-based Groundwater 25 people served
1 violation (5yr)
· 1 health-based · All resolved
Superior Forest Lodge
Groundwater 25 people served
0 violations
Ely Tanker Base Usfs
Groundwater 25 people served
0 violations
Sawbill Lake Campground #4 Usfs
Groundwater 25 people served
0 violations
Timber Trail Lodge
4 health-based Surface water 25 people served
16 violations (5yr)
· 4 health-based
South Kawishiwi Campground #2
Groundwater 25 people served
0 violations
E Bearskin C G E
Groundwater 25 people served
0 violations
Lake Leander Picnic East Usfs
Groundwater 25 people served
0 violations
Chainsaw Sisters Saloon
Groundwater 25 people served
0 violations
Ymca Camp Du Nord
Surface water 25 people served
0 violations
Seagull Gs
Groundwater 25 people served
0 violations
Coral Ridge Resort
Groundwater 25 people served
0 violations
Birch Lake Campground #2 Usfs
Groundwater 25 people served
0 violations
Squaw Bay Resort
Groundwater 25 people served
0 violations
Divide Lake Campground Usfs
Groundwater 25 people served
0 violations
Sunset View Cabins
Groundwater 25 people served
0 violations
Farm Lake Outpost Llc
Groundwater 25 people served
0 violations
Graystone Outfitters Cpgd
Groundwater 25 people served
0 violations
Tofte Lake Cabins
Groundwater 25 people served
0 violations
East Bearskin Lake Campground West Usfs
Groundwater 25 people served
0 violations
Eagles Nest Firehall/Community Center
Groundwater 25 people served
0 violations
Pipestone Outfitting Co
Groundwater 25 people served
0 violations
Kirks Resort
Groundwater 25 people served
0 violations
Blue Heron Bed & Breakfast
Groundwater 25 people served
0 violations
Jack Pine Lodge
Surface water 25 people served
0 violations
Sawbill Lake Campground #2 Usfs
Groundwater 25 people served
0 violations
Crescent Lake Campground #2 Usfs
Groundwater 25 people served
0 violations
Fall Lake Resort
Groundwater 25 people served
0 violations
Birch Lake Campground Usfs
Groundwater 25 people served
0 violations
Anderson'S Resort
Groundwater 25 people served
0 violations
Johnsons Group Home
Groundwater 25 people served
0 violations
Snowbank Beach Resort
Groundwater 25 people served
0 violations
Cedar Shores Resort
Groundwater 25 people served
0 violations
Jeanette Lake Campground Usfs
Groundwater 25 people served
0 violations
Wakemup State Campground
Groundwater 25 people served
0 violations
Eagle Mountain Trailhead
Groundwater 25 people served
0 violations
Northernair Lodge
All resolved Groundwater 25 people served
1 violation (5yr)
· All resolved
South Kawishiwi Campground Usfs
Groundwater 25 people served
0 violations
Clear Lake Resort
Groundwater 25 people served
0 violations
Mcdougal Lake Campground
Groundwater 25 people served
0 violations
Mcdougal Lakes Rec Area-Campground Usfs
Groundwater 25 people served
0 violations
Moose Bay Company
Groundwater 25 people served
0 violations
Isabella Administration Site Usfs
Groundwater 25 people served
0 violations
Ash River State Campground
Groundwater 25 people served
0 violations
Moose Lake Lodges
Groundwater 25 people served
0 violations
Rock Ridge Camp
Groundwater 25 people served
0 violations
Crawfords Bait And Tackle
Groundwater 25 people served
0 violations
Ely Adventure School
Groundwater 25 people served
0 violations
Whispering Pines Lodge
Groundwater 25 people served
0 violations
Lake Leander Picnic West
Groundwater 25 people served
0 violations
Jack & Toni'S
Groundwater 23 people served
0 violations
Living Waters Retreat
Groundwater 0
0 violations
Shigwak Lodge
Groundwater 0
0 violations
Bear Island Resort
Groundwater 0
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
30 violations
All resolved
Interim Enhanced Surface Water Treatment RuleHealth-Based
29 violations
All resolved
Surface Water Treatment RuleHealth-Based
8 violations
All resolved
Groundwater RuleHealth-Based
5 violations
All resolved
Total Haloacetic Acids (HAA5)Health-Based
2 violations
All resolved
NitrateHealth-Based
At high levels, nitrate can cause blue baby syndrome in infants.
2 violations
All resolved
Public NoticeMonitoring
13 violations
Has active
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
2 violations
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit5 ppb measured
Action level: 15 ppb
Sampled: Jan 2025
How Does This Compare?
Duluth (55731) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 93.
Fewer violations 96th 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
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 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.