Alaska Drinking Water Compliance Records
414 water systems serving 712,547 people. 109,309 historical EPA violation records in the Q2 2026 snapshot.
TapScore Compliance-History Grades
A
113
27%
B
50
12%
C
109
26%
D
95
23%
F
47
11%
414
Water Systems
712,547
Population Served
109,309
Historical Records
6,236
Health-Based (All Years)
Systems With the Most Recent EPA Records
ALAKANUK WATER SYSTEM
570 served1,542 historical records453 recent
F
FOREST PARK TC
175 served1,368 historical records399 recent
D
PERRYVILLE WATER SYSTEM
88 served1,027 historical records347 recent
C
GRAYLING WATER SYSTEM
207 served1,540 historical records336 recent
F
NONDALTON
205 served962 historical records309 recent
F
MANOKOTAK WATER SYSTEM
293 served946 historical records277 recent
D
MINTO COMMUNITY WATER SYSTEM
205 served449 historical records269 recent
D
AKUTAN
95 served940 historical records264 recent
D
EMMONAK WATER SYSTEM
820 served1,214 historical records264 recent
F
NUNAM IQUA WATER SYSTEM
213 served1,088 historical records244 recent
F
Large Systems With No Recent Records
GOLDEN HEART UTILITIES
78,324 served66 historical records
A
CITY AND BOROUGH OF JUNEAU
38,526 served100 historical records
A
JBER-ELMENDORF
30,003 served19 historical records
A
COLLEGE UTILITIES CORPORATION
27,000 served71 historical records
A
FT WAINWRIGHT - MAIN POST
20,076 served329 historical records
A
WASILLA WATER SYSTEM
18,492 served111 historical records
A
KODIAK WATER SYSTEM
9,547 served148 historical records
A
SITKA
9,448 served51 historical records
A
KETCHIKAN PUBLIC UTILITIES
8,937 served71 historical records
A
PALMER WATER SYSTEM
8,111 served67 historical records
A
Largest Water Systems in Alaska
| Water System | Grade | Population | Historical Records |
|---|---|---|---|
| MOA MUNICIPALITY OF ANCHORAGE | C | 221,351 | 416 |
| GOLDEN HEART UTILITIES | A | 78,324 | 66 |
| CITY AND BOROUGH OF JUNEAU | A | 38,526 | 100 |
| JBER-ELMENDORF | A | 30,003 | 19 |
| COLLEGE UTILITIES CORPORATION | A | 27,000 | 71 |
| DOYON UTILITIES JBER - RICHARDSON | B | 20,284 | 214 |
| FT WAINWRIGHT - MAIN POST | A | 20,076 | 329 |
| WASILLA WATER SYSTEM | A | 18,492 | 111 |
| EIELSON - AIR FORCE BASE | D | 11,870 | 227 |
| KODIAK WATER SYSTEM | A | 9,547 | 148 |
| SITKA | A | 9,448 | 51 |
| SKAGWAY | C | 9,411 | 223 |
| UNALASKA WATER SYSTEM | C | 9,400 | 286 |
| KETCHIKAN PUBLIC UTILITIES | A | 8,937 | 71 |
| PALMER WATER SYSTEM | A | 8,111 | 67 |
| HOMER WATER SYSTEM | A | 7,008 | 131 |
| UNIVERSITY OF ALASKA - FAIRBANKS | C | 6,200 | 119 |
| KENAI WATER SYSTEM | B | 5,700 | 268 |
| SAINT REGIS MOHAWK TRIBE | D | 5,500 | 33 |
| CATTARAUGUS CWS | C | 4,999 | 55 |
Contaminants in Alaska
Lead in AlaskaArsenic in AlaskaNitrate in AlaskaFluoride in AlaskaPFOS in AlaskaPFOA in AlaskaTHMs in AlaskaHAA5 in Alaska
Cities in Alaska
ANCHORAGE(83)FAIRBANKS(20)JUNEAU(2)WASILLA(54)JBER(1)ELMENDORF AIR FORCE BASE(1)FORT RICHARDSON(1)FORT WAINWRIGHT(1)PALMER(34)KODIAK(2)EIELSON AFB(1)EIELSON(1)KETCHIKAN(8)SITKA(1)SKAGWAY(1)UNALASKA(1)HOMER(4)BETHEL(9)KENAI(5)VALDEZ(4)SALAMANCA(5)BARROW(2)Akwesasne(1)SOLDOTNA(7)NORTH POLE(4)NOME(2)SEWARD(4)BIG LAKE(13)KOTZEBUE(1)PETERSBURG(1)UTQIAGVIK(7)GIRDWOOD(4)DILLINGHAM(4)CORDOVA(1)HAINES(2)WRANGELL(1)TALKEETNA(1)EAGLE RIVER(10)DELTA JUNCTION(4)CRAIG(1)HOOPER BAY(1)NEDROW(1)ANCHOR POINT(1)HOONAH(1)KING COVE(1)CHUGIAK(12)CHEVAK(1)TOGIAK(1)KLAWOCK(1)PT. HOPE(1)MOUNTAIN VILLAGE(1)SELAWIK(1)SANDPOINT(1)SAND POINT(1)EMMONAK(1)SAVOONGA(1)GALENA(2)KWETHLUK(1)UNALAKLEET(1)YAKUTAT(1)NOORVIK(1)QUINHAGAK(1)GLENNALLEN(7)GAMBELL(1)FORT YUKON(1)TOKSOOK BAY(1)WHITTIER(1)COPPER CENTER(6)KIPNUK(1)SCAMMON BAY(1)AKIACHAK(1)NIKISKI(2)KOTLIK(1)WAINWRIGHT(1)BUCKLAND(1)STEBBINS(1)PILOT STATION(1)SHISHMAREF(1)ALAKANUK(1)NEW STUYAHOK(1)SAINT MARYS(1)SAINT MARY'S(1)KONGIGANAK(1)KASIGLUK(2)CHEFORNAK(1)MANOKOTAK(2)SALCHA(1)TRAPPER CREEK(1)NUNAPITCHUK(1)ST. MICHAEL(1)SAINT MICHAEL(1)NENANA(1)EGEGIK(1)NOATAK(1)THORNE BAY(1)KIANA(1)KIVALINA(1)ANGOON(1)SAXMAN(1)NUIQSUT(1)