We found 144 public water systems in Somerset county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Nj American Water - Short Hills | Bedminster Twp., Belvidere Town, Berkeley Heights Twp., Bernards Twp., Bernardsville Boro, Chatham Boro, Chester Twp., Far Hills Boro, Florham Park Boro, Franklin T | 217,230 | 119 | 20 |
| Franklin Township Dept Of Public Works | Franklin Twp. | 56,300 | 37 | 65 |
| South Brunswick Twp W Di | Franklin Twp., South Brunswick Twp. | 45,450 | 82 | 66 |
| Duke Island Park | Bridgewater Twp. | 1,506 | 0 | 11 |
| Far Hills Country Day School | Bernards Twp. | 700 | 0 | 12 |
| Rocky Hill W Dept | Rocky Hill Boro | 687 | 0 | 15 |
| Hillsborough Board Of Education | Hillsborough Twp. | 610 | 0 | 16 |
| Matheny Medical And Education Center | Peapack-gladstone | 563 | 0 | 4 |
| Fiddlers Elbow Golf Course | Bedminster Twp. | 500 | 0 | 6 |
| Fellowship Deaconry Camp Well | Bernards Twp. | 450 | 0 | 1 |
| Princeton Mont Soc Inc | Montgomery Twp. | 430 | 0 | 4 |
| Burger King | Green Brook Twp. | 420 | 0 | 5 |
| Elbereth Llc - The Long House | Franklin Twp. | 355 | 0 | 16 |
| Elbereth Llc School | Franklin Twp. | 355 | 0 | 16 |
| Elbereth Llc Kitchen | Franklin Twp. | 355 | 0 | 28 |
| Country Plaza- Shrk Realty Llc | Franklin Twp. | 315 | 0 | 0 |
| Exxon Usa 3-6110 | Bernards Twp. | 302 | 0 | 10 |
| Waldorf School Of Princeton | Montgomery Twp. | 300 | 0 | 6 |
| Trump National Golf Course | Bedminster Twp. | 275 | 0 | 64 |
| Village Shopper | Franklin Twp. | 261 | 0 | 0 |
| Nj American Water-twin Lakes | Bernardsville Boro | 250 | 0 | 22 |
| Pillar Of Fire | Franklin Twp. | 229 | 0 | 0 |
| Albrook School | Bernards Twp. | 225 | 0 | 3 |
| Bernardsville Municipal Pool | Bernardsville Boro | 210 | 0 | 0 |
| Spooky Brook Cg-clubhous | Franklin Twp. | 210 | 0 | 0 |
| Neshanic Vallley Golf Course-perf Academ | Branchburg Twp. | 206 | 0 | 3 |
| Arsha Bodha Center | Franklin Twp. | 201 | 0 | 2 |
| Fraternal Order Of Eagle - Picnic Area | Bridgewater Twp. | 200 | 0 | 0 |
| Bernardsville Polo Grounds | Bernardsville Boro | 200 | 0 | 2 |
| Mark E Singley Park | Hillsborough Twp. | 200 | 0 | 3 |
| Pleasant Valley Pool/ Park | Bernards Twp. | 200 | 0 | 3 |
| Fellowship Deaconry Inc | Bernards Twp. | 188 | 0 | 7 |
| Church Of Jesus Christ Latter Day Saints | Branchburg Twp. | 185 | 0 | 6 |
| Stewarts | Franklin Twp. | 184 | 0 | 3 |
| St John On The Mountain | Bernards Twp. | 180 | 0 | 9 |
| Hillsborough Medical Building | Hillsborough Twp. | 170 | 0 | 4 |
| Cherry Blossom-montessori Sch | Hillsborough Twp. | 162 | 0 | 7 |
| Super Car Wash | Bridgewater Twp. | 162 | 0 | 0 |
| Longships Complex | Hillsborough Twp. | 158 | 0 | 6 |
| Somerville Lumber Co | Bridgewater Twp. | 157 | 0 | 16 |
| 6 | Hillsborough Twp. | 154 | 0 | 1 |
| Garden State Sikh Temple | Bridgewater Twp. | 153 | 0 | 5 |
| Petrocks Bar & Grille | Hillsborough Twp. | 152 | 0 | 14 |
| A Bright Beginning/just Four Wheels | Franklin Twp. | 150 | 0 | 0 |
| Silver Saddle Swim Club | Branchburg Twp. | 129 | 0 | 8 |
| Hillsborough Center | Hillsborough Twp. | 127 | 0 | 0 |
| Lamington Presbyterian Church | Bedminster Twp. | 122 | 0 | 0 |
| Apples & Books Learning Center | Branchburg Twp. | 120 | 0 | 0 |
| Scpc Envir Educ Ctr | Bernards Twp. | 120 | 0 | 0 |
| Green Knoll Grille | Bridgewater Twp. | 110 | 0 | 0 |
| Bagel Garden | Branchburg Twp. | 110 | 0 | 0 |
| South Branch Reformed Ch | Hillsborough Twp. | 109 | 0 | 0 |
| Bank Of America | Franklin Twp. | 108 | 0 | 0 |
| Humble House Complex | Hillsborough Twp. | 107 | 0 | 0 |
| Bunker Hill Golf Course | Franklin Twp. | 106 | 0 | 0 |
| Scpc Ballfield #1 | Bridgewater Twp. | 105 | 0 | 0 |
| Warren Brook Park Gc | Warren Twp. | 104 | 0 | 0 |
| Murphys Inn | Branchburg Twp. | 104 | 0 | 0 |
| Bridgewater Senior Citizens Center | Bridgewater Twp. | 103 | 0 | 0 |
| Fox Hollow Gc (club House | Branchburg Twp. | 100 | 0 | 0 |
| Mc Knight Field | Montgomery Twp. | 100 | 0 | 0 |
| Princeton English Congregation | Montgomery Twp. | 100 | 0 | 0 |
| So Bound Brook Little League | Franklin Twp. | 100 | 0 | 0 |
| Roycefield Swim Club | Hillsborough Twp. | 100 | 0 | 0 |
| Ralph T Reeve Cultural A | Branchburg Twp. | 100 | 0 | 0 |
| Cedar Hill Club Inc | Franklin Twp. | 95 | 0 | 0 |
| Scpc Stable Facility | Bernards Twp. | 93 | 0 | 0 |
| Warren Deli & Grill | Warren Twp. | 93 | 0 | 0 |
| Neshanic Valley Golf Course | Branchburg Twp. | 90 | 0 | 0 |
| Princeton Elks 2129 | Montgomery Twp. | 90 | 0 | 0 |
| Corner Cafe And Grill | Franklin Twp. | 86 | 0 | 0 |
| Bank Of America | Branchburg Twp. | 81 | 0 | 0 |
| Somerset Hills Country Club | Bernardsville Boro | 80 | 0 | 0 |
| Our Little Schoolhouse | Franklin Twp. | 77 | 0 | 0 |
| Njas Scherman-hoffman Wildlife Sanctuary | Bernardsville Boro | 75 | 0 | 0 |
| Tower Plaza | Green Brook Twp. | 75 | 0 | 0 |
| Vincents At The King George Inn | Warren Twp. | 71 | 0 | 0 |
| Seedlings Hillsborough Llc | Hillsborough Twp. | 70 | 0 | 0 |
| Sky Farm | Bernards Twp. | 70 | 0 | 0 |
| America's Best Value Inn | Bridgewater Twp. | 69 | 0 | 0 |
| Vital Records Inc | Hillsborough Twp. | 68 | 0 | 0 |
| Somerset Hills Learning Institute | Bedminster Twp. | 66 | 0 | 0 |
| First Student | Hillsborough Twp. | 65 | 0 | 0 |
| Camp Cromwell | Bridgewater Twp. | 63 | 0 | 0 |
| 1st Presbyterian Church Of Bernardsville | Bernardsville Boro | 62 | 0 | 0 |
| Saint Gobain Performance Plast | Bridgewater Twp. | 61 | 0 | 0 |
| Middlebush Village Shopping Square | Franklin Twp. | 60 | 0 | 0 |
| The Blawenburg Market & Catering Company | Montgomery Twp. | 60 | 0 | 0 |
| Little Gem Academy | Franklin Twp. | 60 | 0 | 0 |
| Onsen For All | Franklin Twp. | 60 | 0 | 0 |
| La Strada Cafe | Branchburg Twp. | 58 | 0 | 0 |
| Otto Kaufman Community Center | Montgomery Twp. | 55 | 0 | 0 |
| Evolution Training Center | Bridgewater Twp. | 55 | 0 | 0 |
| South Branch Family Practice | Branchburg Twp. | 55 | 0 | 0 |
| Hillsborough Country Clu | Hillsborough Twp. | 54 | 0 | 0 |
| Mother Of God Church | Montgomery Twp. | 52 | 0 | 0 |
| Colonial Park Sanitary Fac #2 | Franklin Twp. | 52 | 0 | 0 |
| Camp Agnes Dewitt | Hillsborough Twp. | 51 | 0 | 0 |
| Childrens Garden Of Learning | Branchburg Twp. | 51 | 0 | 0 |
| Mill Pond Park | Montgomery Twp. | 50 | 0 | 0 |
| Watchung Hills Hs-field | Warren Twp. | 50 | 0 | 0 |
| Green Knoll Tennis Ctr | Bridgewater Twp. | 50 | 0 | 0 |
| Spooky Brook Sanit Fac # | Franklin Twp. | 50 | 0 | 0 |
| Montgomery Medical Associates | Montgomery Twp. | 49 | 0 | 0 |
| Obriens Tavern | Franklin Twp. | 49 | 0 | 0 |
| Blawenburg Ref Church | Montgomery Twp. | 49 | 0 | 0 |
| Colonial Motors | Branchburg Twp. | 48 | 0 | 0 |
| Grand Rental Station - Line X | Bridgewater Twp. | 46 | 0 | 0 |
| Wagner Farm Arboretum | Warren Twp. | 44 | 0 | 0 |
| Bunker Hill Environmental Education Cent | Franklin Twp. | 42 | 0 | 0 |
| Branchburg Family Health Center | Branchburg Twp. | 40 | 0 | 0 |
| Branchburg Library | Branchburg Twp. | 40 | 0 | 0 |
| Klubhouse Kids / Community Fire House | Warren Twp. | 40 | 0 | 0 |
| Fellowship Youth Center | Bernards Twp. | 40 | 0 | 0 |
| Bunker Hill Lutheran Church | Franklin Twp. | 39 | 0 | 0 |
| Chengdu 1 Palace Inc | Green Brook Twp. | 35 | 0 | 0 |
| Duke Farms Foundation | Hillsborough Twp. | 35 | 0 | 0 |
| American Legion Post 293 | Warren Twp. | 35 | 0 | 0 |
| Franklin Mall | Franklin Twp. | 33 | 0 | 0 |
| Colonial Park Horticulture | Franklin Twp. | 33 | 0 | 0 |
| Griggstown Reformed Church | Franklin Twp. | 31 | 0 | 0 |
| Fraternal Order Of Eagle | Bridgewater Twp. | 31 | 0 | 0 |
| Neshanic Valley Maintenance | Branchburg Twp. | 31 | 0 | 0 |
| Fellowship Guest House | Bernards Twp. | 31 | 0 | 0 |
| Tabatchnick Fine Foods | Franklin Twp. | 30 | 0 | 0 |
| Griggstown Volunteer Fire Company | Franklin Twp. | 30 | 0 | 0 |
| Lamington School House | Bedminster Twp. | 30 | 0 | 0 |
| Warren Twp. Maintenance | Warren Twp. | 30 | 0 | 0 |
| Roller Hockey Rink North Branch Greenway | Bridgewater Twp. | 30 | 0 | 0 |
| Sunset Lake | Bridgewater Twp. | 30 | 0 | 0 |
| Red Mill Inn - Well #2 | Branchburg Twp. | 29 | 0 | 0 |
| Red Mill Inn - Well #1 | Branchburg Twp. | 29 | 0 | 0 |
| Betar Inc | Hillsborough Twp. | 29 | 0 | 0 |
| Green Farm Subzi Mandi Food Market | Franklin Twp. | 28 | 0 | 0 |
| Community Gardens Well | Hillsborough Twp. | 27 | 0 | 0 |
| Pediatric & Adult Rehabilitation Center | Franklin Twp. | 27 | 0 | 0 |
| Lynbranch | Branchburg Twp. | 26 | 0 | 0 |
| In Balance Day Spa/lair Dance Academy | Hillsborough Twp. | 25 | 0 | 0 |
| Lepp Park | Somerville Boro | 25 | 0 | 0 |
| Ami | Branchburg Twp. | 25 | 0 | 0 |
| Griggstown Muletenders Barracks | Franklin Twp. | 25 | 0 | 0 |
| Colonial Park-ballfield | Franklin Twp. | 25 | 0 | 0 |
| Loyal Order Of Moose | Franklin Twp. | 25 | 0 | 0 |
| Childrens Workshop | Hillsborough Twp. | 0 | 0 | 0 |