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Lead in Montana drinking water

800 community water systems tested

3.8%
of tested systems exceeded the lead action level
(30/800)

Lead is a neurotoxin with no known safe level. It usually enters water from old service lines and household plumbing rather than the source, so results vary system to system. The EPA acts when the 90th-percentile sample exceeds 0.015 mg/L.

Water systems

Lead value per system, LCR compliance samples. EPA action level — 0.015 mg/L at the 90th percentile. Systems that exceeded the lead action level are highlighted and listed first. “Not detected” means the contaminant was measured but not found.
SystemCityPopulationLead (mg/L)
TALL TIMBERS MOBILE HOME PARK NOBLESVILLE 90 0.0780 mg/L
TRI COUNTY WATER DISTRICT FAIRFIELD 470 0.0729 mg/L
ORLAND ESTATES MOBILE H.P. 244 0.0693 mg/L
EAST END COLONY INC HAVRE 100 0.0294 mg/L
SEELEY LAKE WATER DISTRICT SEELEY LAKE 1,575 0.0240 mg/L
STAR MOBILE HOME PARK BOZEMAN 190 0.0235 mg/L
ARROW CREEK TRAILER COURT BILLINGS 75 0.0229 mg/L
THE NINES SUBDIVISION BILLINGS 220 0.0225 mg/L
VA MEDICAL CENTER HELENA FORT HARRISON 1,275 0.0220 mg/L
PALISADES APARTMENTS MILES CITY 50 0.0210 mg/L
CHERRY CREEK ESTATES LLC BILLINGS 600 0.0208 mg/L
CLARKS LOOKOUT DILLON 62 0.0208 mg/L
MOBILE CITY HOME PARK NO 2 HELENA 300 0.0206 mg/L
ROUNDUP WATER DEPARTMENT ROUNDUP 1,900 0.0194 mg/L
BIG BEND RANCH SUBDIVISION GREAT FALLS 100 0.0190 mg/L
BELGRADE TRAILER COURT BELGRADE 50 0.0188 mg/L
LAUREL MUNICIPAL WATER SYSTEM LAUREL 6,339 0.0182 mg/L
LIBBY CITY OF LIBBY 4,892 0.0180 mg/L
BIG SPUR TR CT LIVINGSTON 65 0.0178 mg/L
WINDMILL TRAILER PARK WELL 1 LIVINGSTON 110 0.0170 mg/L
RYAN DAM WATER SYSTEM GREAT FALLS 230 0.0169 mg/L
RIVER ROCK COUNTY WATER AND SEWER DIST BELGRADE 4,200 0.0168 mg/L
MONTANA CHRISTIAN COLLEGE KALISPELL 105 0.0162 mg/L
BIG SKY TRAILER CT HAMILTON HAMILTON 70 0.0161 mg/L
EAGLEMAN COMMUNITY WATER 400 0.0160 mg/L
NEIHART TOWN OF NEIHART 229 0.0156 mg/L
SOMERS CO WATER AND SEWER DIST SOMERS 765 0.0155 mg/L
FLAXVILLE TOWN OF FLAXVILLE 82 0.0154 mg/L
DUCK CREEK MOBILE HOME PARK BILLINGS 70 0.0154 mg/L
MT ELLIS ACADEMY BOZEMAN 106 0.0151 mg/L
ETHRIDGE COUNTY WATER DISTRICT SHELBY 70 0.0150 mg/L
GRAY WOLF VILLAGE 32 0.0143 mg/L
DRY REDWATER REGIONAL WATER AUTHORITY SIDNEY 365 0.0140 mg/L
LION MOUNTAIN HOMEOWNERS ASSOC KALISPELL 204 0.0140 mg/L
HONEY LANE COMMUNITY HAMILTON 50 0.0138 mg/L
WESTVIEW MOBILE HOME PARK MISSOULA 947 0.0136 mg/L
JORDAN TOWN OF JORDAN 364 0.0135 mg/L
BAINVILLE TOWN OF BAINVILLE 350 0.0134 mg/L
SADDLEBACK RIDGE ESTATES BILLINGS 150 0.0132 mg/L
GALLATIN VILLAGE MOB HM PARK BOZEMAN 100 0.0130 mg/L
PLAINS TOWN OF PLAINS 1,700 0.0130 mg/L
DARBY TOWN OF DARBY 850 0.0130 mg/L
FOREST ACRES TR PK WHITEFISH WHITEFISH 390 0.0128 mg/L
HELENA NORTH KOA HELENA 50 0.0128 mg/L
KALISPELL PUBLIC WORKS KALISPELL 25,000 0.0127 mg/L
HILLTOP TERRACE SUBDIVISION KALISPELL 230 0.0127 mg/L
ALPINE MOBILE MANOR KALISPELL 45 0.0127 mg/L
ANTELOPE COUNTY WATER AND SEWER ANTELOPE 59 0.0126 mg/L
NORTH HAVRE COUNTY WATER DIST HAVRE 90 0.0125 mg/L
SKYVIEW PARK KALISPELL 55 0.0121 mg/L
GRANITE PARK WATER ASSOCIATION BILLINGS 250 0.0121 mg/L
FOREST VIEW HOA FLORENCE 65 0.0120 mg/L
BUTTE SILVERBOW WATER DEPT BUTTE 33,000 0.0120 mg/L
GLENDIVE CITY OF GLENDIVE 4,873 0.0120 mg/L
BIG MOUNTAIN WATER COMPANY WHITEFISH 2,435 0.0120 mg/L
PHILIPSBURG TOWN OF PHILIPSBURG 1,360 0.0120 mg/L
FAIRFIELD TOWN OF FAIRFIELD 718 0.0120 mg/L
RYEGATE TOWN OF RYEGATE 270 0.0120 mg/L
HYSHAM TOWN OF HYSHAM 262 0.0120 mg/L
GEYSER JUDITH BASIN CTY WATER SEWER DIST GEYSER 125 0.0120 mg/L
SUNSET WEST RSID MISSOULA 105 0.0120 mg/L
HAMILTON MOBILE VILLAGE HAMILTON 53 0.0120 mg/L
FOYS LAKESIDE ESTATES WATER & SEWER DIST KALISPELL 36 0.0120 mg/L
HARVEYS MOBILE HOME PARK MISSOULA 98 0.0120 mg/L
BILLINGS CITY OF BILLINGS 114,000 0.0118 mg/L
WIBAUX TOWN OF WIBAUX 550 0.0118 mg/L
BAKER CITY OF BAKER 1,858 0.0116 mg/L
TWO DOT WATER USERS COMPANY TWO DOT 50 0.0116 mg/L
MOORE TOWN OF MOORE 186 0.0116 mg/L
PLEASANT PARK COMMUNITY INC GREAT FALLS 125 0.0116 mg/L
WINNETT TOWN OF WINNETT 187 0.0115 mg/L
NCMRWA NORTH HAVRE CWD LEG HAVRE 90 0.0115 mg/L
WHITEFISH CITY OF WHITEFISH 10,418 0.0114 mg/L
FORT SMITH WATER AND SEWER DISTRICT FORT SMITH 450 0.0114 mg/L
OPHEIM TOWN OF OPHEIM 111 0.0112 mg/L
BMP LINCOLN RENTALS LLC BOZEMAN 31 0.0112 mg/L
PRECISION WATER BILLINGS 250 0.0111 mg/L
FROMBERG TOWN OF FROMBERG 498 0.0110 mg/L
GRANT CREEK WATER USERS ASSOCIATION INC MISSOULA 380 0.0110 mg/L
YELLOWSTONE BOYS AND GIRLS RANCH BILLINGS 240 0.0110 mg/L
HOLLYWOOD HEIGHTS TRAILER PARK LLC MISSOULA 220 0.0110 mg/L
PEBBLE GARDENS MOBILE HOME CT HELENA 125 0.0110 mg/L
MISSOULA VILLAGE WEST TR CT MISSOULA 68 0.0110 mg/L
WHISPERING TREES MOBILE PARK GLENDIVE 100 0.0109 mg/L
ROBERTS WUA CARBON CO WATER AND SEWER ROBERTS 300 0.0109 mg/L
EMERALD VIEW PARK BILLINGS 320 0.0108 mg/L
TOWNSEND CITY OF TOWNSEND 2,000 0.0108 mg/L
YELLOWTAIL DAM GC SYSTEM HARDIN 125 0.0108 mg/L
GREEN ACRES COURT KALISPELL 85 0.0108 mg/L
THOMSON MOBILE HOME PARK BELGRADE 65 0.0108 mg/L
ELK MEADOWS RANCHETTES FRENCHTOWN 175 0.0107 mg/L
RAPELJE WATER DISTRICT RAPELJE 70 0.0106 mg/L
JOHNSONS MOBILE HOME PARK LIBBY 35 0.0105 mg/L
TWIN ACRES TRAILER COURT KALISPELL 60 0.0105 mg/L
BUSBY COMMUNITY WATER SYSTEM 535 0.0104 mg/L
EAST GATE WORK CAMP CORWIN SPRINGS 208 0.0104 mg/L
HIDEAWAY TR PK COLUMBIA FALLS COLUMBIA FALLS 75 0.0104 mg/L
SUNNY MEADOWS WATER AND SEWER DIST MISSOULA 135 0.0103 mg/L
WORDEN BALLANTINE YELLOWSTONE BALLANTINE 800 0.0102 mg/L
CINNABAR THE CORWIN SPRINGS 175 0.0101 mg/L