Water quality for ZIP code 99748
ZIP 99748 covers Kaltag in Yukon-Koyukuk Census Area, Alaska, one of 32 ZIP codes in the county. 34 active public water systems serve the county; 30 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Yukon-Koyukuk Census Area
26 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Nulato River Well Nulato |
245 | 4 | 32.7 mi | |
| Koyukuk Safewater Facility Koyukuk |
85 | 6 | 48.8 mi | |
| Galena Wtp2 Gila Galena |
290 | 4 | 60.9 mi | |
| Galena Wtp1 City Galena |
490 | 5 | 62.9 mi | |
| Ruby Water System Ruby |
215 | 6 | 101.6 mi | |
| Grayling Water System Grayling |
207 | 13 | 106.6 mi | |
| Shageluk Water System Shageluk |
60 | 8 | 119.0 mi | |
| Takotna Water System Takotna |
70 | 7 | 125.1 mi | |
| Anvik Water System Anvik |
96 | 8 | 125.8 mi | |
| McGrath Water System Mcgrath |
341 | 5 | 138.1 mi | |
| Holy Cross Water System Holy Cross |
182 | 3 | 151.4 mi | |
| Hughes Public Water Supply Hughes |
107 | 9 | 175.9 mi | |
| Too'gha INC in Tanana Tanana |
271 | 9 | 206.0 mi | |
| Allakaket Public Water System Allakaket |
135 | 7 | 232.7 mi | |
| Manley Community Water System Manley Hot Springs |
95 | 2 | 244.9 mi | |
| Rampart Washeteria Rampart |
88 | 7 | 264.1 mi | |
| Minto Community Water System Minto |
205 | 10 | 282.9 mi | |
| Nenana Municipal Water Nenana |
486 | 1 | 288.8 mi | |
| Stevens Village Water System Stevens Village |
28 | 6 | 303.8 mi | |
| Beaver Water System Beaver |
80 | 6 | 355.5 mi | |
| Venetie Water System Venetie |
181 | 7 | 397.4 mi | |
| Ft. Yukon Public Water System Fort Yukon |
665 | 6 | 416.5 mi | |
| Circle Washeteria Circle |
110 | 6 | 439.0 mi | |
| Arctic Village Water System Arctic Village |
175 | 8 | 454.7 mi | |
| Chalkyitsik Village Water Chalkyitsik |
76 | 7 | 458.5 mi |
Non-community systems in Yukon-Koyukuk Census Area (7: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Yksd Merreline Kangas / Ruby Ruby |
40 | 3 | 1 | |
|
Yksd Allakaket School Allakaket |
52 | 6 | 0 | |
|
Monroes Monderosa Nenana |
78 | 1 | 0 | |
|
Blm Arctic Interagency Visitor Center Coldfoot |
130 | 0 | 0 | |
|
Coldfoot Cafe Coldfoot |
120 | 0 | 0 | |
|
The Inn at Coldfoot Coldfoot |
120 | 0 | 0 | |
|
Yukon River Camp Coldfoot |
59 | 0 | 0 |
About this data
Water systems are matched to Yukon-Koyukuk Census Area, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Alaska records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.