Water Quality in Billings, MT (59101)
EPA violation data for public water systems serving ZIP code 59101.
Active Health Violations
9 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 94% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
42,250
Population
100
Water Systems
88
Violations (5yr)
9
Health-Based
Location
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Water Systems Serving This Area (100)
Billings City Of
Surface water 114,000 people served
0 violations
Lockwood Water And Sewer District
Surface water 5,900 people served
0 violations
Montana State University Billings
Purchased surface water 2,999 people served
0 violations
Billings Career Center
Groundwater 1,560 people served
0 violations
Yellowstone Ice And Water
Groundwater 1,500 people served
0 violations
Msu - Billings College Of Technology
Purchased surface water 1,291 people served
0 violations
Pioneer Water Service
All resolved Purchased surface water 900 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Fisher Water Service
All resolved Purchased surface water 750 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Cedar Park Water Plant
Surface water 600 people served
0 violations
Yellowstone Water Service
Purchased groundwater 600 people served
0 violations
Sundance Subdivision
Groundwater 378 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Stone Creek Subdivision
Groundwater 378 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb) ✓
Emerald View Park
All resolved Purchased surface water 320 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Shiloh Road Development
All resolved Purchased surface water 315 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Mountain Meadows Estates Llp
Groundwater 300 people served
0 violations
The Horse Palace
Groundwater 300 people served
0 violations
Granite Park Water Association
1 health-based Groundwater 250 people served
3 violations (5yr)
· 1 health-based · All resolved
Wells Garden Estates
All resolved Groundwater 240 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Crystal Springs Water System
5 health-based Groundwater 225 people served
6 violations (5yr)
· 5 health-based · All resolved
Lead tested: 4 ppb (limit: 15 ppb) ✓
Oak Ridge Estates
All resolved Groundwater 200 people served
1 violation (5yr)
· All resolved
Lead tested: 5 ppb (limit: 15 ppb) ✓
Canyon Creek School District 4
Groundwater 200 people served
0 violations
Lead tested: 4 ppb (limit: 15 ppb) ✓
Five Corners Kwik Stop
Purchased surface water 200 people served
0 violations
Torres Cafe
Purchased surface water 200 people served
0 violations
Blue Creek School Dist 3
1 health-based Purchased surface water 198 people served
3 violations (5yr)
· 1 health-based · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Elysian School District No 23
Purchased surface water 150 people served
0 violations
Market Basket
Groundwater 150 people served
0 violations
C & C Community Inc
Purchased surface water 145 people served
8 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓
First Student Inc
All resolved Groundwater 130 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Reliable Water Service
All resolved Purchased surface water 110 people served
1 violation (5yr)
· All resolved
Valley Water Service
Groundwater 100 people served
0 violations
Pompey'S Pillar National Monument
Groundwater 100 people served
0 violations
Big Dipper Drive Inn
Purchased surface water 100 people served
0 violations
Peks Mobile Home Court
All resolved Purchased surface water 95 people served
4 violations (5yr)
· All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓
Westana Mobile Manor Hamilton
Groundwater 90 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Glentana Trailer Court
Groundwater 84 people served
0 violations
Black Rock Estates Subdivision
All resolved Groundwater 75 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Fedex Relay Center
All resolved Groundwater 74 people served
27 violations (5yr)
· All resolved
Storybook Hollow
All resolved Groundwater 70 people served
1 violation (5yr)
· All resolved
Lead tested: 4 ppb (limit: 15 ppb) ✓
Skycrest Estates Subdivision
All resolved Groundwater 65 people served
2 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Clampitt'S Trailer Court
Groundwater 65 people served
0 violations
Slumberland Furniture
Groundwater 64 people served
0 violations
Yellowstone Ice And Water
All resolved Purchased surface water 61 people served
7 violations (5yr)
· All resolved
Billings Peterbilt
2 health-based Groundwater 60 people served
5 violations (5yr)
· 2 health-based · All resolved
Lead tested: 5 ppb (limit: 15 ppb) ✓
Billings Good Earth Market
Purchased surface water 50 people served
0 violations
Red Club Bar
Groundwater 50 people served
0 violations
Project Meats
Groundwater 50 people served
0 violations
Mountain Bell
Groundwater 50 people served
0 violations
Quick Mart
Groundwater 50 people served
0 violations
Sweetheart Bakery
Groundwater 50 people served
0 violations
Double Diamond Subdivision Arbor Hills
All resolved Purchased surface water 50 people served
1 violation (5yr)
· All resolved
Blue Basket
Groundwater 50 people served
0 violations
Blue Basket
Groundwater 50 people served
0 violations
Sweetheart Bakery-Laurel
Groundwater 50 people served
0 violations
D-J Meat
Groundwater 50 people served
0 violations
Suds Hut
Groundwater 50 people served
0 violations
All Trails Koa
Groundwater 50 people served
0 violations
Red Barn Produce Inc.
Groundwater 50 people served
0 violations
Dry Creek Meat
Groundwater 50 people served
0 violations
Echo Inn
Groundwater 50 people served
0 violations
School District #52
Groundwater 49 people served
0 violations
Morin Elementary School
Purchased surface water 48 people served
0 violations
Turner Border Station
All resolved Groundwater 45 people served
1 violation (5yr)
· All resolved
Raymond Border Station
All resolved Groundwater 37 people served
1 violation (5yr)
· All resolved
Duck Creek Tr Ct - Well #2
Groundwater 35 people served
0 violations
Duck Creek Trailer Court
Groundwater 35 people served
0 violations
Sartorie Legacy Homes
All resolved Purchased surface water 35 people served
1 violation (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
School District #2-Shiloh
Groundwater 32 people served
0 violations
Culligan Billings Heights
Purchased surface water 30 people served
0 violations
State Line Casino
Groundwater 30 people served
0 violations
Westminster Spires Camp
All resolved Groundwater 30 people served
1 violation (5yr)
· All resolved
Bronco Trailer Court
Groundwater 30 people served
0 violations
Indian Fort Campground
Groundwater 25 people served
0 violations
Waggoners Trucking
Groundwater 25 people served
0 violations
Mountain Mudd Great Falls
Purchased surface water 25 people served
0 violations
Indian Fort Campground
Groundwater 25 people served
0 violations
Moraine Fishing Access Site
Groundwater 25 people served
0 violations
Kimble Trailer Court
Groundwater 25 people served
0 violations
Cooney Recreation Area
Groundwater 25 people served
0 violations
Son Shine Day Care
Groundwater 25 people served
0 violations
Selkirk Campground
Groundwater 25 people served
0 violations
Main Event
Purchased groundwater 25 people served
0 violations
Cozy Court
Groundwater 25 people served
0 violations
Iron Side Inn
Groundwater 25 people served
0 violations
Corral Bar
Groundwater 25 people served
0 violations
Pure Water Tech Lucky'S Market Billings
Purchased surface water 25 people served
0 violations
Peek-A-Boo Bar
Purchased surface water 25 people served
0 violations
Knox Lumber Co.
Groundwater 25 people served
0 violations
Moraine Fishing Access Site
Groundwater 25 people served
0 violations
Restad'S Mobile Home Court
Groundwater 25 people served
0 violations
Mountain Mudd Water Truck Billings
Purchased surface water 25 people served
0 violations
Two Acre Trailer Court
Groundwater 25 people served
0 violations
Ekalaka Park Campground
Groundwater 25 people served
0 violations
Castle Rock Fas
Groundwater 25 people served
0 violations
Hayloft
Purchased groundwater 25 people served
0 violations
Graus Trailer Court
Groundwater 25 people served
0 violations
Mountain Mudd Water Truck Great Falls
Purchased surface water 25 people served
0 violations
Hide Out
Purchased groundwater 25 people served
0 violations
Mcnab Pond Campground
Groundwater 25 people served
0 violations
Mountain Bell
Groundwater 20 people served
0 violations
Odonnell Turkey Farm
Groundwater 10 people served
0 violations
Contaminants Found
Nitrate-NitriteHealth-Based
13 violations
All resolved
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
11 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
18 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
16 violations
Has active
TTHMMonitoring
2 violations
All resolved
Total Haloacetic Acids (HAA5)Monitoring
2 violations
All resolved
BromateMonitoring
2 violations
All resolved
E. COLIMonitoring
1 violation
All resolved
2,4,5-TPMonitoring
1 violation
All resolved
SimazineMonitoring
1 violation
All resolved
HexachlorocyclopentadieneMonitoring
1 violation
All resolved
HeptachlorMonitoring
1 violation
All resolved
HEXACHLOROBENZENEMonitoring
1 violation
All resolved
AtrazineMonitoring
1 violation
All resolved
CarbofuranMonitoring
1 violation
All resolved
Di(2-ethylhexyl) adipateMonitoring
1 violation
All resolved
MethoxychlorMonitoring
1 violation
All resolved
PicloramMonitoring
1 violation
All resolved
OXAMYLMonitoring
1 violation
All resolved
BHC-GAMMAMonitoring
1 violation
All resolved
LASSOMonitoring
1 violation
All resolved
2,4-DMonitoring
1 violation
All resolved
EndrinMonitoring
1 violation
All resolved
Benzo(a)pyreneMonitoring
1 violation
All resolved
ToxapheneMonitoring
1 violation
All resolved
ChlordaneMonitoring
1 violation
All resolved
DinosebMonitoring
1 violation
All resolved
Di(2-ethylhexyl) phthalateMonitoring
1 violation
All resolved
Heptachlor epoxideMonitoring
1 violation
All resolved
DalaponMonitoring
1 violation
All resolved
PentachlorophenolMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
How Does This Compare?
Billings (59101) has more violations than 94% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 88.
Fewer violations 94th 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
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.