Water quality for ZIP code 06339
ZIP 06339 covers Mashantucket in New London County, Connecticut, one of 33 ZIP codes in the county. 392 active public water systems serve the county; 204 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in New London County
87 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Scwa, Ledyard Center Division Ledyard |
652 | 0 | 1.1 mi | |
| Scwa, Barrett Division (bar) Ledyard |
300 | 0 | 1.8 mi | |
| Ash Water Company, LLC Ledyard |
108 | 0 | 2.7 mi | |
| Scwa, Chriswood Division (cwd) Ledyard |
164 | 0 | 3.0 mi | |
| Preston Plains Water Company Preston |
550 | 2 | 3.5 mi | |
| Aquarion-Arlington Acres Stonington |
392 | 0 | 3.5 mi | |
| Mystic Village Apartments Groton |
66 | 2 | 3.6 mi | |
| Scwa, Tower-Ferry View Division Ledyard |
2,567 | 1 | 4.0 mi | |
| Lincoln Park Elderly Housing Preston |
80 | 1 | 4.0 mi | |
| Ledyard Wpca, Gales Ferry System Groton, Ledyard |
2,369 | 1 | 4.1 mi | |
| Scwa, North Stonington Division (nst) North Stonington |
1,860 | 1 | 5.0 mi | |
| Northstone Gardens North Stonington |
79 | 3 | 5.4 mi | |
| Kitemaug Orchard Association, Inc. Montville |
490 | 0 | 5.5 mi | |
| Scwa, Mohegan Division Montville |
1,428 | 0 | 5.6 mi | |
| Marina Cove Montville |
70 | 1 | 5.6 mi | |
| Scwa, Cedar Ridge Division North Stonington |
370 | 0 | 5.7 mi | |
| Neighbors of Rogers, LLC Groton |
57 | 4 | 5.8 mi | |
| Mountview Apartments Montville |
105 | 3 | 5.9 mi | |
| Aquarion-Mystic Groton, Ledyard, Stonington |
10,788 | 0 | 6.0 mi | |
| Scwa, Birchwood Division (bwd) Montville |
108 | 0 | 6.0 mi | |
| Montville Water Supply Montville, Waterford |
1,300 | 0 | 6.2 mi | |
| Groton Utilities Groton, Ledyard |
30,200 | 1 | 6.8 mi | |
| Independence Village Elderly Housing Montville |
55 | 1 | 7.0 mi | |
| Scwa, Hillcrest Division (hlc) Montville |
450 | 0 | 7.5 mi | |
| Meadows Apartments Montville |
301 | 0 | 7.6 mi |
Non-community systems in New London County (304: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to New London County, 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 county subdivision files or 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 Connecticut 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.