Morris County, New Jersey — public water systems
At a glance
302 active public water systems are filed under Morris County, New Jersey in EPA's SDWIS records, together reporting 449,898 people served. The largest is Southeast Morris County Mua, which reports serving 62,349 people. 61 are community water systems serving people where they live; the other 241 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
302
Population served
449.9K
Community systems
61
Groundwater share
96%
How does Morris County compare with other New Jersey counties?
Morris County has the 2nd-most active public water systems among the 62 counties listed for active New Jersey systems in EPA records; among the 27 with 3 or more systems, the median has 101. Its systems report 449,898 people served in total, the 11th-largest county figure in the state and 4.7% of the statewide total. The average system here reports serving 1,490 people, about half of the New Jersey average of 2,750. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Morris County's drinking water come from?
By primary water source, Morris County's active systems draw on groundwater (284, 94%), purchased surface water (10, 3.3%), purchased groundwater (6, 2%) and surface water (2, 0.7%). Overall, 96% rely mainly on groundwater (including purchased groundwater) and 4% on surface water, compared with 96% and 4.5% across New Jersey. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Southeast Morris County Mua, draws primarily on surface water.
What kinds of water systems operate in Morris County?
Morris County's active systems break down as 61 community systems (20%), 59 non-transient non-community systems (20%) and 182 transient non-community systems (60%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (75%), local government (22%), state government (1.3%) and federal government (1%).
The 50 largest water systems in Morris County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Southeast Morris County Mua | Morris | 62,349 | Community | Surface water |
| 2 | Parsippany-Troy Hills Water Department | Morris | 50,400 | Community | Purchased surface water |
| 3 | Dover Water Commission | Morris | 27,806 | Community | Groundwater |
| 4 | Montville Twp Mua | Morris | 22,000 | Community | Purchased surface water |
| 5 | Denville Twp Water Dept | Morris | 15,881 | Community | Groundwater |
| 6 | Madison Water Dept | Morris | 15,820 | Community | Groundwater |
| 7 | Randolph Twp Public Works Dept | Morris | 14,820 | Community | Purchased groundwater |
| 8 | Pequannock Twp Water Department | Morris | 14,010 | Community | Purchased surface water |
| 9 | Rockaway Twp Water Dept | Morris | 14,000 | Community | Groundwater |
| 10 | Nj American Water - Roxbury | Morris | 11,793 | Community | Groundwater |
| 11 | East Hanover Twp Water Dept | Morris | 11,393 | Community | Purchased surface water |
| 12 | Lincoln Park Water Dept | Morris | 11,000 | Community | Purchased surface water |
| 13 | Boonton Water Dept | Morris | 9,532 | Community | Surface water |
| 14 | Chatham Water Dept | Morris | 8,962 | Community | Groundwater |
| 15 | Florham Park Water Dept | Morris | 8,846 | Community | Groundwater |
| 16 | Jefferson Twp W U Lk Hop | Morris | 8,500 | Community | Groundwater |
| 17 | Mount Olive Twp W D Main | Morris | 7,887 | Community | Groundwater |
| 18 | Rockaway Boro Water Dept | Morris | 7,066 | Community | Groundwater |
| 19 | Nj American Water - Itc | Morris | 6,463 | Community | Groundwater |
| 20 | Wharton Water Dept | Morris | 6,342 | Community | Groundwater |
| 21 | Awo&M - Picatinny Arsenal | Morris | 6,011 | Community | Groundwater |
| 22 | Roxbury Twp W Dept-Shore | Morris | 5,153 | Community | Groundwater |
| 23 | Mt Olive Villages Water | Morris | 5,000 | Community | Groundwater |
| 24 | Washington Twp Mua-Schoo | Morris | 4,986 | Community | Groundwater |
| 25 | Jefferson Twp W U Milton Sys | Morris | 4,500 | Community | Groundwater |
| 26 | Roxbury Twp W Dept-Sky V | Morris | 4,478 | Community | Groundwater |
| 27 | Mine Hill Twp Water Dept | Morris | 4,300 | Community | Purchased groundwater |
| 28 | Mountain Lakes Water Dep | Morris | 4,012 | Community | Groundwater |
| 29 | Mt Olive Village Green Water System | Morris | 3,600 | Community | Groundwater |
| 30 | Netcong Water Dept | Morris | 3,342 | Community | Groundwater |
| 31 | Fayson Lakes Water Company Inc. | Morris | 3,010 | Community | Groundwater |
| 32 | Riverdale Boro Water Dep | Morris | 2,850 | Community | Purchased surface water |
| 33 | Veolia Water New Jersey Arlington Hills | Morris | 1,989 | Community | Groundwater |
| 34 | Mount Arlington Boro Dpw Main | Morris | 1,978 | Community | Purchased groundwater |
| 35 | Kinnelon Water Dept | Morris | 1,938 | Community | Purchased surface water |
| 36 | Mt Olive High School | Morris | 1,750 | Non-transient non-community | Groundwater |
| 37 | West Morris Central High | Morris | 1,615 | Non-transient non-community | Groundwater |
| 38 | Pequannock Twp Wd-Cedar Crest | Morris | 1,463 | Community | Purchased surface water |
| 39 | Jefferson Twp High School | Morris | 1,400 | Non-transient non-community | Groundwater |
| 40 | Hopatcong State Park | Morris | 1,200 | Transient non-community | Groundwater |
| 41 | Sisters of Charity of St Elizabeth | Morris | 1,100 | Community | Groundwater |
| 42 | Morris Chase/Morris Hunt Pcws | Morris | 1,080 | Community | Groundwater |
| 43 | Mount Arlington Dpw Kadel Sys | Morris | 1,053 | Community | Purchased groundwater |
| 44 | Windlass Restaurant & Marina | Morris | 1,020 | Transient non-community | Groundwater |
| 45 | Quick-Chek | Morris | 1,006 | Transient non-community | Groundwater |
| 46 | Jefferson Twp Middle School | Morris | 900 | Non-transient non-community | Groundwater |
| 47 | Nj American Water - West Jersey | Morris | 837 | Community | Groundwater |
| 48 | School House Plaza | Morris | 811 | Transient non-community | Groundwater |
| 49 | St Lukes Parish | Morris | 786 | Non-transient non-community | Groundwater |
| 50 | Mount Olive Twp W D Sand | Morris | 744 | Community | Groundwater |
All other water systems in Morris County (251)
The remaining active systems filed under Morris County, largest first, with the population each reports serving.
- Seven-Eleven Store708
- Berkshire Plaza675
- Mt Olive Twp Wd Pinecrest648
- Wightmans Farms610
- Harbor Hills Day Camp- Bathrooms605
- Harbor Hills Day Camp- Pavillion605
- B & J Market602
- Mt Olive Twp Tinc Farm597
- West Main Associates574
- Indoor Sports Pavilion523
- Rockaway Valley School520
- Sandshore School518
- Christ the King Church507
- Our Lady of the Magnificat506
- St Thomas the Apostle C504
- Jcc Day Camp at Flanders500
- Flanders Valley Wedding and Banquets483
- Budd Lake Plaza441
- Sussex Turnpike Industrial Campus Condo425
- The Mall at Wild Geese424
- Alstede Farms - Farm Store420
- Alstede Farms - House & Farm420
- Katherine D Mallone Sch390
- Black River Middle School380
- Plaza 10373
- The Grill Room365
- Shotmeyer Brothers359
- Green Pond Bible Chapel356
- Harding Twp Jr School (Ft Bl345
- Country Farms330
- Jefferson Industrial Park, LLC320
- Deer Lake Club316
- Club House Golf Center314
- Kingtown Diesel312
- Morris County Golf Club307
- Valley Shepherd Creamery306
- Boonton Twp Water Dept305
- Kew Garden Realty LLC305
- Flanders LLC305
- Sun Air Camp303
- Chester Community Pool302
- Camp Jockey Hollow301
- Lincoln Park Jacksonville Syst300
- Camp Winnebago Dining Hall300
- Awm Four Seasons at Chester280
- Country Mile Village276
- Crescent Jv274
- Minisink Club, Inc..271
- Lakeshore Company270
- Mt Olive Carlton Hills Water System267
- Mount Olive W.D. Goldmine System267
- Alices262
- Speedway #3456259
- Wendys Old Fashioned Hamburger258
- Mount Olive Shopping Parkade255
- Paramount Plaza253
- Exxon USA 3-5390253
- Goddard School251
- Kinnelon Prof Bldg250
- Hacklebarney State Park250
- Equity Plaza240
- Highlands Building240
- Fla-Net Campground238
- Building 1451 LLC226
- Harding Twp Elementary School225
- St David Episcopal Church224
- Tap House 15220
- Jefferson House215
- Pizza Pub210
- Centenary College Uset - Classroom210
- Berkshire Valley Golf Course210
- Centenary University Barns210
- Our Lady of the Mountain204
- Speedy Mart202
- Kessler Institute for Rehab200
- Randolph Park Beach200
- Black River Barn200
- #45 South Plaza Phase #1199
- Budd Lake Diner198
- Casa De Pasta194
- Apple Montessori Schools192
- Big A Route 10 LLC180
- 1881 Nj LLC170
- Jefferson Dairy170
- Njdot @ Roxbury Corp Center170
- Ihop Kenvil168
- Vincenzos Pizza166
- Mendham Golf & Tennis Club-Clubhouse162
- Casa Bianca162
- Green Pond Corp160
- Marios Pizza154
- St Simmons Church151
- Park Meadows Industrial150
- Westmont Montesorri School145
- Prudent Publishing Co145
- Jefferson Strip Mall145
- Wdiftk Inc.143
- Community Church of Smoke Rise140
- Roxiticus Golf Club140
- First Presbyterian Church132
- Green Pond Yacht Club Inc.127
- Nj Vasa Home Water Sys125
- Luzzis Hibernian Restau124
- The Malon Resort124
- Harding Township Municipal Building122
- Washington Twp Sr Citize120
- Heritage Woodland LLC120
- Hubbell Power System Inc.120
- Hoffman Homes120
- Jersey Girl Brewing Co. LLC117
- Montessori Kids Universe- Chester117
- Veolia Environmental Services112
- Marigold Academy111
- Country Wine & Liquors110
- Mason St Pub108
- United Presbyterian Church Flanders107
- 12 Village LLC107
- Ironia Shopping Center106
- Grace Baptist Church105
- Bp Station105
- Liebenzell Camp105
- 3 Mars Court105
- Port Morris United Meth104
- Exxon USA 3-2297104
- Bills Lunch & General St103
- Highlands Presbyterian Church103
- Paul & Christas Diner103
- Cliffs Dairy Maid Inc.103
- Schooley'S Mountain Park100
- Oak Ridge Mobile Home Park100
- Morristown Natl Historic Park100
- Nw Plaza LLC100
- Jefferson Twp Public Works100
- Windy Acres Mobile Home100
- 35 Perry St LLC96
- Hunkele Equities96
- Bernies Hillside Lounge95
- 4 Goldmine Rd LLC95
- La Strada Restaurant92
- 180 Goldmine Road Complex92
- Jefferson Twp W Vassar Road90
- Roxbury Twp W Dept-Evergreen90
- 186 Goldmine Road Complex89
- 5711 Berkshire Valley Realty LLC88
- Quality Inn87
- Portofinos87
- Bright Horizons at Mt Olive85
- Jefan LLC85
- Roxbury Business Campus85
- Lakeview Medical Associates85
- Sce Realty LLC85
- Skyland Medical Group, P.A.84
- Days Inn84
- Reform Temple Shalom83
- Paxos Realty 538 LLC80
- Johnson Dodge Chrysler Jeep80
- Valley Tavern80
- Omg Burger80
- Aqua Nj Cliffside Park80
- Daily Planet Inc.79
- Liebenzell Mission79
- Mendham Golf & Tennis Club-Tennis78
- Ap Chester Properties LLC76
- Sandshore Industrial Condo Association75
- Sherwood Village75
- Asian Express74
- Lakeview Plaza74
- White Birch74
- The Old Mill Tavern72
- Indoor Soccer LLC72
- Flanders Valley Business Park70
- Wise Owl Learning Center70
- Rockaway Twp Garage70
- Green Pond Dental Associates68
- Exxon USA 3-899467
- 906 Holding Group LLC67
- Center Court Athletic Club - Main66
- Center Court Athletic Club - Pool66
- Tri-State Quikrete65
- Mt Olive Professional Pa65
- Tony'S Famous Pizzeria64
- Dogwood School63
- Reformed Church in Kinnelon63
- Smoke Rise Village Inn63
- Kinnelon Real Estate62
- Rockaway Twp Health Ctr/Rockaw60
- 415 Rt 24 Condo Association59
- Mount Olive Lynwood Water System57
- Daniel Van Volkenburg Dds56
- Deba Realty LLC56
- Valley Brook Country Day55
- 1 Mill Ridge Lane55
- Karen'S House55
- Pops Brand LLC54
- Casella'S Deli54
- Parsippany Inn54
- Plaza 415 Condo Association54
- Johnson Gmc Cadillac53
- Mini Mac Drive in52
- 360 Route 2452
- Cafe Sapori52
- Maher 64 Chiropractic LLC52
- Club 1551
- Asian Landing Garden50
- Palmer Park Water System50
- Loziers Trailer Park50
- Almetek Industries Inc.50
- Chapala Grill 348
- Kij Management47
- Delta 7th Heaven Market47
- East Lakewview LLC47
- Signature Care Home @ Montville46
- Super 8 / Budd Lake Hospitality LLC46
- Long Hill Christian Preschool45
- Harding Township Library45
- Artista Italian Specialties43
- 1 Mars Court43
- Emmanuel Bible Church43
- Center Court at Morristown42
- Lakeside Tavern41
- Thirty Five Righter Rd Assoc41
- Christadelphia Bible Camp40
- Prestige Worldwide40
- Bajwa Management LLC40
- Heritage Reformed Congregation of Nj39
- Environmental Transport Group39
- Flanders Valley Day Care38
- The Boat House38
- Roxbury Motel38
- Rockaway Twp Bd of Ed -Adm Bl35
- 6 Mill Ridge Lane35
- Chester Woods Professional Park35
- Verizon Netcong Work Center35
- Washington Twp Police Dept34
- Mr Crabbys33
- Immanuel Evangelical Lut32
- Long Valley Presbyterian32
- Chabad Jewish Center at Mt. Olive31
- Nj Vasa Home - Clubhouse31
- Roxbury Dpw31
- Life Giving Fountain Romanian Church30
- Stephens State Park30
- Mountainside Deli29
- Dunkin Donuts (Ledgewood)26
- The Roasted Breadfruit Grill26
- Parks Property Management26
- Pavilion Lounge26
- Little Nicks25
- Us Postal Svc Budd Lake Mt Olive Branch25
- Nordic Contracting25
- Mahlon Dickerson Reservation-Rv25
Also serving Morris County
These systems serve several counties, including Morris County. EPA lists another county first for them, so they are not included in the counts above.
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Nj American Water - Short Hills | Warren + 6 more | 217,230 | Community | Surface water |
| Butler Water Dept | Passaic + 1 more | 7,630 | Community | Surface water |
| Washington Twp Mua-Hager | Hunterdon + 1 more | 3,458 | Community | Groundwater |
Morris County water systems: frequently asked questions
How many public water systems are in Morris County, New Jersey?
EPA's SDWIS records file 302 active public water systems under Morris County, New Jersey: 61 community systems (20%), 59 non-transient non-community systems (20%) and 182 transient non-community systems (60%). At least 3 more systems are listed under another county but also serve Morris County.
Who supplies drinking water in Morris County, NJ?
The largest community water systems filed under Morris County are Southeast Morris County Mua (62,349 people served), Parsippany-Troy Hills Water Department (50,400 people served) and Dover Water Commission (27,806 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Morris County's drinking water come from groundwater or surface water?
Of the 302 active public water systems in Morris County, 96% draw mainly on groundwater and 4% on surface water, counting purchased supplies. The largest system, Southeast Morris County Mua, uses surface water.
Where can I find a water quality report for Morris County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 61 community systems are filed under Morris County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Morris County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More New Jersey water systems
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Morris County, New Jersey”, https://aquacensus.com/water-systems/new-jersey/morris (data as of October 1, 2026).