County · New Jersey
Morris County, New Jersey: drinking water records
This overview covers 50 ZIP codes and 66 community water systems in Morris County. It also stands in for 4 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Southeast Morris County MUA NJ1424001 | 62,349 | 660 | 8 | 2 | 1.5 ppb |
| Parsippany-Troy Hills Water Department NJ1429001 | 50,400 | 870 | 8 | 2 | 3.3 ppb |
| Montville TWP MUA NJ1421003 | 22,000 | 360 | 7 | 3 | 4.7 ppb |
| Pequannock TWP Water Department NJ1431001 | 14,010 | 120 | 0 | 3 | 5.1 ppb |
| East Hanover TWP Water Dept NJ1410001 | 11,393 | 240 | 8 | 2 | 1.3 ppb |
| Lincoln Park Water Dept NJ1416001 | 11,000 | 120 | 2 | 10 | 4.1 ppb |
| Boonton Water Dept NJ1401001 | 9,532 | 180 | 7 | 1 | 1.1 ppb |
| Jefferson TWP W U Lk Hop NJ1414011 | 8,500 | 120 | 5 | 8 | 0 ppb |
| Mount Olive TWP W D Main NJ1427005 | 7,887 | 180 | 4 | 2 | 0 ppb |
| Butler Water Dept NJ1403001 | 7,630 | 120 | 2 | 3 | 0 ppb |
| Mt Olive Villages Water NJ1427001 | 5,000 | 180 | 4 | 4 | 7 ppb |
| Jefferson TWP W U Milton Sys NJ1414003 | 4,500 | 180 | 7 | 2 | 4.9 ppb |
| Roxbury TWP W Dept-Sky V NJ1436004 | 4,478 | 120 | 1 | 3 | 4.9 ppb |
| Mt Olive Village Green Water System NJ1427007 | 3,600 | 60 | 0 | 2 | 0 ppb |
| Nj American Water - Short Hills NJ0712001 | 217,230 | 900 | 7 | 0 | 3 ppb |
| Dover Water Commission NJ1409001 | 27,806 | 120 | 8 | 0 | 2.8 ppb |
| Denville TWP Water Dept NJ1408001 | 15,881 | 300 | 7 | 0 | 12.7 ppb |
| Madison Water Dept NJ1417001 | 15,820 | 240 | 5 | 0 | 2.6 ppb |
| Randolph TWP Public Works Dept NJ1432003 | 14,820 | 300 | 0 | 0 | 3.4 ppb |
| Rockaway TWP Water Dept NJ1435002 | 14,000 | 180 | 6 | 0 | 2.8 ppb |
| Nj American Water - Roxbury NJ1436002 | 11,793 | 240 | 0 | 0 | 4 ppb |
| Chatham Water Dept NJ1404001 | 8,962 | 60 | 0 | 0 | 1.4 ppb |
| Florham Park Water Dept NJ1411001 | 8,846 | 210 | 2 | 0 | 2.5 ppb |
| Rockaway Boro Water Dept NJ1434001 | 7,066 | 60 | 8 | 0 | 4.1 ppb |
| Nj American Water - Itc NJ1427017 | 6,463 | 180 | 3 | 0 | 0 ppb |
ZIP reports in Morris County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 07842, 07870, 07961, 07976.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.