North Dakota Tap Water Quality
EPA water quality data for 150 community water systems serving 468,129+ people in North Dakota. Click any system to see violations, lead testing results, and a safety grade.
North Dakota relies on surface water from the Missouri River system and groundwater from glacial aquifers. Water is extremely hard across most of the state, with many areas exceeding 300 mg/L. Naturally occurring arsenic and uranium have been detected in some aquifers in the western oil-producing region.
FARGO CITY OF
BISMARCK CITY OF
GRAND FORKS REGIONAL WTP
WEST FARGO CITY OF
MANDAN CITY OF
SOUTH CENTRAL RWD NORTH BURLEIGH
VALLEY CITY CITY OF
WATFORD CITY CITY OF
EAST CENTRAL REGIONAL WD-GF
BARNES RURAL WATER DISTRICT
MISSOURI WEST WATER SYSTEM
LINCOLN CITY OF
CASS RURAL WATER DISTRICT FARGO
OMND WATER TREATMENT PLANT
MCKENZIE COUNTY WRD
SOUTH CENTRAL REGIONAL WATER DISTRICT
CASS RURAL WATER DISTRICT-PHASE I
SOUTH CENTRAL RWD-EMMONS
AGASSIZ WATER USERS DISTRICT
BEULAH CITY OF
CASSELTON CITY OF
TRI-COUNTY WATER DISTRICT
NORTHEAST RWD-LANGDON BRANCH
HAZEN CITY OF
BOTTINEAU CITY OF
CARRINGTON CITY OF
LANGDON CITY OF
OAKES CITY OF
GARRISON RURAL WATER DISTRICT
MCLEAN-SHERIDAN WATER DISTRICT-SYSTEM 1
CASS RURAL WATER DISTRICT-PHASE II
CASS RURAL WATER DISTRICT-PHASE III
HORACE CITY OF
BOWMAN CITY OF
GARRISON CITY OF
CROSBY CITY OF
ELLENDALE CITY OF
NEW ROCKFORD CITY OF
LARIMORE CITY OF
ALEXANDER CITY OF
MAPLETON CITY OF
CAVALIER CITY OF
SOUTHEAST WUD (WEST)
WASHBURN CITY OF
HETTINGER CITY OF
STANLEY CITY OF
DAKOTA RURAL WATER DISTRICT SOUTH
LINTON CITY OF
VELVA CITY OF
DAKOTA RURAL WATER DISTRICT NORTH
WALHALLA CITY OF
COOPERSTOWN CITY OF
BEACH CITY OF
WISHEK CITY OF
NEW SALEM CITY OF
NORTHWOOD CITY OF
KILLDEER CITY OF
ALL SEASONS WD-SYSTEM I
LAMOURE CITY OF
DRAYTON CITY OF
GLEN ULLIN CITY OF
NAPOLEON CITY OF
ALL SEASONS WD-SYSTEM III
UNDERWOOD CITY OF
ASHLEY CITY OF
HEBRON CITY OF
MOTT CITY OF
HARWOOD CITY OF
STEELE CITY OF
WILTON CITY OF
KINDRED CITY OF
LAKOTA CITY OF
ELGIN CITY OF
NEW ENGLAND CITY OF
PEMBINA CITY OF
CENTER CITY OF
TURTLE LAKE CITY OF
EDGELEY CITY OF
TOWNER CITY OF
ARGUSVILLE CITY OF
GREATER RAMSEY WD - CARRINGTON
WESTHOPE CITY OF
LEEDS CITY OF
EMERADO CITY OF
STRASBURG CITY OF
STATE LINE WATER COOP INC
MCLEAN-SHERIDAN WATER DISTRICT-SYSTEM 3
MCLEAN-SHERIDAN WATER DISTRICT-SYSTEM 2
MADDOCK CITY OF
NECHE CITY OF
STANTON CITY OF
KULM CITY OF
MCVILLE CITY OF
IMPERIAL VALLEY WATER CO
ARTHUR CITY OF
BOWBELLS CITY OF
MAX CITY OF
ST THOMAS CITY OF
CROWN BUTTE COOP
GACKLE CITY OF
OXBOW CITY OF
MICHIGAN CITY OF
CARSON CITY OF
SCRANTON CITY OF
POWERS LAKE CITY OF
DRAKE CITY OF
HUNTER CITY OF
TOWER CITY CITY OF
DAVENPORT CITY OF
LANSFORD CITY OF
GRANVILLE CITY OF
ZAP CITY OF
HAZELTON CITY OF
PAGE CITY OF
FLASHER CITY OF
MINNEWAUKAN CITY OF
ANETA CITY OF
NEW LEIPZIG CITY OF
WIMBLEDON CITY OF
RIVERDALE CITY OF
SHEYENNE CITY OF
APPLE VALLEY COOP
RIVERVIEW HEIGHTS
SANBORN CITY OF
BUFFALO CITY OF
HALLIDAY CITY OF
BINFORD CITY OF
GOLDEN VALLEY CITY OF
ARVILLA WATER USERS ASSOCIATION
GRANDIN CITY OF
SOUTHWEST WA-JUNCTION INN(MISSOURI WEST)
LITCHVILLE CITY OF
PLAZA CITY OF
RHAME CITY OF
TOLNA CITY OF
WILLOW CITY CITY OF
REEDER CITY OF
COUNTRY CLUB CO-OP
REGENT CITY OF
LIGNITE CITY OF
WING CITY OF
DUNN CENTER CITY OF
MAPLE RIVER HUTTERIAN ASSOCIATION
OSNABROCK CITY OF
COLUMBUS CITY OF
HANNAFORD CITY OF
UPHAM CITY OF
PORTAL CITY OF
PICK CITY CITY OF
ALMONT CITY OF