Water Quality in Libby, MT (59923)
EPA violation data for public water systems serving ZIP code 59923.
Active Health Violations
6 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.
10,450
Population
98
Water Systems
95
Violations (5yr)
6
Health-Based
Location
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Water Systems Serving This Area (98)
Libby City Of
3 health-based Surface water 4,892 people served
3 violations (5yr)
· 3 health-based · All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓
Us Army Coe Libby Dam Project
Groundwater 1,000 people served
0 violations
Bears Country Store
All resolved Groundwater 805 people served
5 violations (5yr)
· All resolved
Tribal Traditions
Groundwater 803 people served
0 violations
Libby Christian Church
Groundwater 406 people served
0 violations
Simple Simons Pizza
Groundwater 300 people served
0 violations
Farm To Market Store
All resolved Groundwater 274 people served
25 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Libby Dam Project Seattle Dist
Groundwater 200 people served
0 violations
Turner Mountain Ski Area
Groundwater 200 people served
0 violations
Mcgillivray Campground
All resolved Groundwater 192 people served
1 violation (5yr)
· All resolved
Emkayan Village Co Water And Sewer Dist
All resolved Groundwater 160 people served
1 violation (5yr)
· All resolved
Lead tested: 2 ppb (limit: 15 ppb) ✓
Pinewood Village
All resolved Groundwater 160 people served
1 violation (5yr)
· All resolved
Lead tested: 4 ppb (limit: 15 ppb) ✓
Macs Market
Groundwater 154 people served
0 violations
Wr Grace Zonolite Mine
Groundwater 150 people served
0 violations
Montana Christian College
All resolved Groundwater 105 people served
4 violations (5yr)
· All resolved
South Side Casino
Groundwater 104 people served
0 violations
Apple Pie Inn
Groundwater 100 people served
0 violations
J Neils Memorial Park
Groundwater 100 people served
0 violations
Libby Drive In Theatre
Groundwater 100 people served
0 violations
Logan State Park
Surface water 100 people served
0 violations
Kingdom Hall
Groundwater 100 people served
0 violations
Tamarak Trailer Park
Groundwater 100 people served
0 violations
Donnas Kitchen
Groundwater 100 people served
0 violations
Helens Tap Room
Groundwater 100 people served
0 violations
Libby Dam Project
All resolved Groundwater 95 people served
2 violations (5yr)
· All resolved
Lead tested: 5 ppb (limit: 15 ppb) ✓
Koocanusa Resort And Marina Llc
All resolved Groundwater 86 people served
1 violation (5yr)
· All resolved
Pioneer Junction Motel And Bar
Groundwater 79 people served
0 violations
High Country Park
Groundwater 76 people served
0 violations
The Antlers Bar
Groundwater 75 people served
0 violations
Hometown Pizzeria Inc
Groundwater 75 people served
0 violations
Canoe Gulch Ranger Station
Groundwater 64 people served
0 violations
Lead tested: 8 ppb (limit: 15 ppb) ✓
Foxys Bar & Rv Park
1 health-based Groundwater 63 people served
7 violations (5yr)
· 1 health-based · All resolved
Rivers Edge Mobile Park Libby
All resolved Groundwater 60 people served
8 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
First United Presbyterian Chur
Groundwater 60 people served
0 violations
Carousel Roller Rink
Groundwater 58 people served
0 violations
Young Guns Pizza
Groundwater 55 people served
0 violations
River Bend
All resolved Groundwater 54 people served
4 violations (5yr)
· All resolved
The Shed Restaurant And Bar
All resolved Groundwater 53 people served
10 violations (5yr)
· All resolved
Two Bit Outfit Rv Park
Purchased surface water 52 people served
0 violations
Red Dog Saloon And Pizza
All resolved Groundwater 52 people served
1 violation (5yr)
· All resolved
Museum Inc
Groundwater 52 people served
0 violations
Immaculate Conception Catholic Church
All resolved Groundwater 50 people served
2 violations (5yr)
· All resolved
Pine Tree Mobile Park
Groundwater 50 people served
0 violations
Mcgrade Center
All resolved Groundwater 50 people served
1 violation (5yr)
· All resolved
Lead tested: 6 ppb (limit: 15 ppb) ✓
Granite Creek Trailer Court
Groundwater 50 people served
0 violations
Mcgregor Lake Campground
All resolved Groundwater 47 people served
1 violation (5yr)
· All resolved
Timberlane Campground
Groundwater 46 people served
0 violations
Posts Trailer Court
All resolved Groundwater 45 people served
11 violations (5yr)
· All resolved
Lead tested: 1 ppb (limit: 15 ppb) ✓
Northwood Professional Bldg
Groundwater 45 people served
0 violations
Alfresco Rv & Storage
All resolved Groundwater 44 people served
1 violation (5yr)
· All resolved
Montanore
Groundwater 44 people served
0 violations
Hideaway Trailer Court
Groundwater 40 people served
0 violations
Woody'S Rv Park
Groundwater 36 people served
0 violations
Johnsons Mobile Home Park
All resolved Groundwater 35 people served
1 violation (5yr)
· All resolved
Lead tested: 5 ppb (limit: 15 ppb) ✓
Hartmann'S Trailer Court
Groundwater 35 people served
0 violations
Libby Dam Rv Park
Groundwater 34 people served
0 violations
Parmenter Subdivision
Groundwater 33 people served
0 violations
Libby Work Center
All resolved Groundwater 33 people served
1 violation (5yr)
· All resolved
First Church Of The Nazarene
Groundwater 30 people served
0 violations
Granite Creek Trailer Park
Groundwater 30 people served
0 violations
Kootenai Trailer Court
Groundwater 30 people served
0 violations
Faith Bible Church
Groundwater 30 people served
0 violations
Ed'S Trailer Court
Groundwater 30 people served
0 violations
Woodson'S Park
Groundwater 30 people served
0 violations
Eddies Hayloff
Groundwater 30 people served
0 violations
Elkhorn Trailer Court And Apts
Groundwater 30 people served
0 violations
Blackwell Trailer Court
Groundwater 30 people served
0 violations
The Ranch
Groundwater 30 people served
0 violations
Whistle Stop
Groundwater 30 people served
0 violations
Green Acres Tr Ct Libby
Groundwater 30 people served
0 violations
Bromps Court
Groundwater 25 people served
0 violations
First Baptist Church
Groundwater 25 people served
0 violations
Bromps Court
Groundwater 25 people served
0 violations
Seven Day Adventist Church
Groundwater 25 people served
0 violations
Upper Yaak Work Camp
Groundwater 25 people served
0 violations
The Hideaway Trailer Court
Groundwater 25 people served
0 violations
Raven Work Center
Groundwater 25 people served
0 violations
Cherry Creek Trailer Court
Groundwater 25 people served
0 violations
Northwood Professional Bldg
Groundwater 25 people served
0 violations
Jennings Rapids
Groundwater 25 people served
0 violations
Barnes Trailer Court
Groundwater 25 people served
0 violations
Woodland Rv Park
All resolved Purchased surface water 25 people served
1 violation (5yr)
· All resolved
Donna'S Kitchen
Groundwater 25 people served
0 violations
Dunn Creek Campground
2 health-based Groundwater 25 people served
3 violations (5yr)
· 2 health-based
Jehovah Witness Church
Groundwater 25 people served
0 violations
R + C Vierecks Trailer Court
Groundwater 25 people served
0 violations
Lazy Bay Water Users
Groundwater 24 people served
0 violations
St Regis Lions Spring Campgrd.
Surface water 20 people served
0 violations
Lions Picnic Grounds
Groundwater 20 people served
0 violations
Mountain View Trailer Park
Groundwater 20 people served
0 violations
Hell Roaring Bar
Groundwater 15 people served
0 violations
Pipe Creek Tavern
Groundwater 15 people served
0 violations
Granite Creek Trailer Court
Groundwater 12 people served
0 violations
Elkhorn Trailer Ct & Rv Park
Groundwater 12 people served
0 violations
Mk Steakhouse And Cabins
Groundwater 10 people served
0 violations
Libby Racquet Club
Groundwater 10 people served
0 violations
Treasure Mountain Ice
Groundwater 10 people served
0 violations
Ed'S Trailer Court
Groundwater 6 people served
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
29 violations
Has active
Interim Enhanced Surface Water Treatment RuleHealth-Based
2 violations
All resolved
Long Term 2 Enhanced Surface Water Treatment RuleHealth-Based
1 violation
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
16 violations
All resolved
Nitrate-NitriteMonitoring
12 violations
All resolved
Lead and Copper RuleMonitoring
Lead and copper testing requirement. Lead exposure can cause developmental harm in children.
6 violations
All resolved
Groundwater RuleMonitoring
5 violations
All resolved
DalaponMonitoring
1 violation
All resolved
Heptachlor epoxideMonitoring
1 violation
All resolved
CarbofuranMonitoring
1 violation
All resolved
HEXACHLOROBENZENEMonitoring
1 violation
All resolved
SimazineMonitoring
1 violation
All resolved
BHC-GAMMAMonitoring
1 violation
All resolved
MethoxychlorMonitoring
1 violation
All resolved
Di(2-ethylhexyl) phthalateMonitoring
1 violation
All resolved
DinosebMonitoring
1 violation
All resolved
HeptachlorMonitoring
1 violation
All resolved
PentachlorophenolMonitoring
1 violation
All resolved
HexachlorocyclopentadieneMonitoring
1 violation
All resolved
ChlordaneMonitoring
1 violation
All resolved
EndrinMonitoring
1 violation
All resolved
Benzo(a)pyreneMonitoring
1 violation
All resolved
AtrazineMonitoring
1 violation
All resolved
2,4,5-TPMonitoring
1 violation
All resolved
LASSOMonitoring
1 violation
All resolved
ToxapheneMonitoring
1 violation
All resolved
Di(2-ethylhexyl) adipateMonitoring
1 violation
All resolved
PicloramMonitoring
1 violation
All resolved
2,4-DMonitoring
1 violation
All resolved
OXAMYLMonitoring
1 violation
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jul 2025
How Does This Compare?
Libby (59923) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 95.
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.
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.