Water quality for ZIP code 07821
ZIP 07821 covers Hopatcong, Andover, Lake Mohawk, Johnsonburg, Allamuchy, and Byram Center in Sussex County, New Jersey, one of 19 ZIP codes in the county. 475 active public water systems serve the county; 220 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sussex County
60 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Strawberry Point Poa Byram Twp |
95 | 1 | 1.4 mi | |
| Andover Boro Water Dept Andover Boro |
606 | 1 | 1.6 mi | |
| Forest Lakes Water Byram Twp |
1,410 | 1 | 1.6 mi | |
| Colby Water CO Byram Twp |
65 | 2 | 2.0 mi | |
| Tranquil Valley Retreat Center Green Twp |
232 | 3 | 2.3 mi | |
| Aqua NJ Tranquility Springs Green Twp |
599 | 3 | 2.6 mi | |
| Lake Lenape Water CO Andover Twp |
1,250 | 7 | 3.0 mi | |
| Veolia Water New Jersey East Brookwood Byram Twp |
612 | 0 | 3.5 mi | |
| Brookwood Musconetcong River Poa Byram Twp |
1,087 | 1 | 3.6 mi | |
| Stanhope W Dept Stanhope Boro |
3,730 | 5 | 4.5 mi | |
| Saint Pauls Abbey Andover Twp |
530 | 0 | 4.7 mi | |
| Aqua NJ Byram Byram Twp |
400 | 3 | 4.8 mi | |
| Aqua NJ Bear Brook Fredon Twp |
226 | 1 | 5.1 mi | |
| Hopatcong Water Dept Hopatcong Boro |
7,224 | 4 | 5.3 mi | |
| Veolia Water New Jersey Andover Andover Twp |
115 | 0 | 5.8 mi | |
| Newton Water & Sewer Utility Newton Town |
8,300 | 1 | 6.1 mi | |
| Ascot Park Apts Andover Twp |
125 | 0 | 6.1 mi | |
| Mohawk Meadows Andover Twp |
250 | 6 | 6.2 mi | |
| Rolling Hills Condminium Association Andover Twp |
240 | 0 | 6.4 mi | |
| Green Hills Est Prop Own Fredon Twp |
175 | 0 | 6.6 mi | |
| Sparta Twp Water Utility Lake Mohawk Sparta Twp |
17,625 | 4 | 6.7 mi | |
| Stillwater Water District 1 Stillwater Twp |
1,200 | 10 | 7.3 mi | |
| Veolia Water New Jersey Hampton Hampton Twp |
814 | 0 | 7.5 mi | |
| Carriage Mobile Homes INC Hampton Twp |
300 | 4 | 8.6 mi | |
| Sparta Twp Wtr Sunset Sparta Twp |
342 | 2 | 8.7 mi |
Non-community systems in Sussex County (414: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Sussex 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 New Jersey 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.