We found 49 public water systems that could serve the same population as Cejjes Institute (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Pomona - City, Water Dept. | Pomona | 155,604 | 247 | 1 |
| Calif State Polytechnical Univ - Pomona | Pomona | 26,757 | 48 | 3 |
| Suffern Village | Ramapo | 12,000 | 16 | 21 |
| Pomona Shopping Center | Pomona | 1,000 | 0 | 0 |
| YESHIVA WASHINGTON AVE | New Square, Ramapo | 1,000 | 0 | 1 |
| Hillburn Village | Ramapo | 950 | 0 | 1 |
| Ramapo Country Day Camp | Airmont, Ramapo | 950 | 0 | 0 |
| YESHIVA AVIR YAKOV GIRLS SCHOOL | New Square, Ramapo | 900 | 0 | 5 |
| Howell Co Pwsd 1 | Pomona | 845 | 0 | 20 |
| Spook Rock Pool | Montebello, Ramapo | 800 | 0 | 0 |
| United Talmudical Academy | Ramapo, Spring Valley | 800 | 0 | 0 |
| YESHIVA MAIN STREET | New Square, Ramapo | 800 | 0 | 0 |
| Pomona, City Of | Pomona | 799 | 0 | 2 |
| Betty Bacharach Rehab Ho | Pomona | 430 | 0 | 0 |
| YESHIVA AVIR YAKOV | New Square, Ramapo | 400 | 0 | 0 |
| Spook Rock Golf Course | Montebello, Ramapo | 375 | 0 | 2 |
| Reeves Meadow | Ramapo | 350 | 0 | 0 |
| Mount Fuji | Hillburn, Ramapo | 282 | 0 | 3 |
| Camp Regesh | Airmont, Ramapo | 265 | 0 | 0 |
| Cong. Vayoal Moshe Satmar Of Monsey Inc. | Ramapo | 200 | 0 | 0 |
| Camp Merockdim | Pomona, Ramapo | 200 | 0 | 0 |
| Camp Scuffy | Airmont, Ramapo | 190 | 0 | 0 |
| St Johns Church | Ramapo | 175 | 0 | 0 |
| Congregation Yisocher Berish | Ramapo | 150 | 0 | 1 |
| Bais Yaakov Chofetz Chaim | Ramapo | 125 | 0 | 0 |
| Chestnut Ridge Transportation | Chestnut Ridge, Ramapo | 100 | 0 | 0 |
| Unitarian Universalist Society | Pomona, Ramapo | 100 | 0 | 0 |
| Ohr Somayach | Ramapo | 100 | 0 | 0 |
| Pomona Professional Plaza | Ramapo | 100 | 0 | 0 |
| Summit Professional Building | Ramapo | 100 | 0 | 0 |
| Citrus Grille | Ramapo | 75 | 0 | 0 |
| Hilltop House | Chestnut Ridge, Ramapo | 73 | 0 | 0 |
| YESHIVA OF GREATER MONSEY | Ramapo, Wesley Hills | 60 | 0 | 0 |
| St Marys Villa | Ramapo | 55 | 0 | 0 |
| Truman Avenue Syn | Ramapo | 50 | 0 | 0 |
| Jade Village | Chestnut Ridge, Ramapo | 50 | 0 | 0 |
| Torne Brook Farm | Ramapo | 50 | 0 | 0 |
| Congregation Bobover Yeshiva | Ramapo | 40 | 0 | 0 |
| Pomona Country Club | Ramapo, Wesley Hills | 30 | 0 | 0 |
| Orchards Of Concklin, The | Ramapo | 25 | 0 | 0 |
| New Square Fish Market | New Square, Ramapo | 25 | 0 | 0 |
| Kearsing Edwards | Pomona, Ramapo | 25 | 0 | 0 |
| Matterhorn Nursery | Pomona, Ramapo | 25 | 0 | 0 |
| Shulchan Meluchim Foods | New Square, Ramapo | 25 | 0 | 0 |
| Ashel Lane Apartments | Ramapo | 25 | 0 | 0 |
| Clark Recreation Center | Airmont, Ramapo | 25 | 0 | 0 |
| Cejjes Institute | Pomona, Ramapo | 25 | 0 | 0 |
| Prospect Street Apartments, Sp. Valley | Ramapo | 22 | 0 | 0 |
| Appanoose School | Pomona | 0 | 0 | 0 |