| HILDALE - COLORADO CITY | | 6,100 | 0.0260 ug/L |
| SALT LAKE CITY WATER SYSTEM | | 383,612 | 0.0071 ug/L |
| PARK CITY WATER SYSTEM | | 8,875 | 0.0067 ug/L |
| MURRAY CITY WATER SYSTEM | | 38,723 | 0.0040 ug/L |
| GRANGER-HUNTER IMPROVEMENT DISTRICT | | 121,083 | Not detected |
| WEST JORDAN CITY WATER SYSTEM | | 117,025 | Not detected |
| PROVO CITY | | 116,288 | Not detected |
| ST GEORGE CITY WATER SYSTEM | | 105,240 | Not detected |
| SANDY CITY WATER SYSTEM | | 99,750 | Not detected |
| JORDAN VALLEY WCD | | 99,335 | Not detected |
| OREM CITY WATER SYSTEM | | 98,129 | Not detected |
| LEHI CITY | | 93,446 | Not detected |
| SOUTH JORDAN CITY | | 89,704 | Not detected |
| OGDEN CITY WATER SYSTEM | | 87,267 | Not detected |
| LAYTON CITY WATER SYSTEM | | 82,000 | Not detected |
| SARATOGA SPRINGS CITY | | 68,000 | Not detected |
| TAYLORSVILLE-BENNION ID | | 67,098 | Not detected |
| EAGLE MOUNTAIN CITY | | 61,266 | Not detected |
| HERRIMAN CITY MUNICIPAL WATER DEPARTMENT | | 60,000 | Not detected |
| UNIVERSITY OF UTAH | | 57,080 | Not detected |
| KEARNS IMPROVEMENT DISTRICT | | 56,700 | Not detected |
| LOGAN CITY WATER SYSTEM | | 55,540 | Not detected |
| SPANISH FORK CITY | | 47,169 | Not detected |
| WASHINGTON CITY | | 45,865 | Not detected |
| RIVERTON CITY WATER SYSTEM | | 45,600 | Not detected |
| PLEASANT GROVE CITY | | 40,000 | Not detected |
| CEDAR CITY WATERWORKS | | 39,670 | Not detected |
| AMERICAN FORK CITY | | 39,045 | Not detected |
| ROY CITY WATER SYSTEM | | 38,800 | Not detected |
| BOUNTIFUL CITY WATER SYSTEM | | 37,500 | Not detected |
| TOOELE CITY WATER SYSTEM | | 37,100 | Not detected |
| SYRACUSE CITY WATER SYSTEM | | 35,561 | Not detected |
| SPRINGVILLE CITY | | 35,516 | Not detected |
| CLEARFIELD CITY WATER SYSTEM | | 33,540 | Not detected |
| WATERPRO INC | | 33,100 | Not detected |
| MIDVALE CITY WATER SYSTEM | | 33,005 | Not detected |
| KAYSVILLE CITY WATER SYSTEM | | 32,976 | Not detected |
| MAGNA WATER DISTRICT | | 32,100 | Not detected |
| BONA VISTA WATER DISTRICT | | 29,000 | Not detected |
| FARMINGTON CITY WATER SYSTEM | | 27,860 | Not detected |
| HILL AIR FORCE BASE | | 25,625 | Not detected |
| HURRICANE CITY | | 25,555 | Not detected |
| SOUTH SALT LAKE CITY WATER SYSTEM | | 23,600 | Not detected |
| DRAPER CITY WATER SYSTEM | | 23,205 | Not detected |
| CLINTON CITY WATER SYSTEM | | 23,000 | Not detected |
| NORTH OGDEN CITY | | 22,000 | Not detected |
| HIGHLAND CITY | | 22,000 | Not detected |
| VINEYARD CITY | | 21,431 | Not detected |
| HOOPER WATER IMPROVEMENT DISTRICT | | 20,820 | Not detected |
| BRIGHAM CITY WATER SYSTEM | | 20,540 | Not detected |
| BLUFFDALE WATER SYSTEM | | 20,000 | Not detected |
| HEBER CITY WATER SYSTEM | | 19,000 | Not detected |
| PAYSON CITY WATER SYSTEM | | 19,000 | Not detected |
| NORTH SALT LAKE CITY WATER SYSTEM | | 18,655 | Not detected |
| SANTAQUIN CITY | | 17,532 | Not detected |
| SOUTH OGDEN CITY WATER SYSTEM | | 17,500 | Not detected |
| CENTERVILLE CITY WATER SYSTEM | | 17,155 | Not detected |
| GRANTSVILLE CITY | | 16,284 | Not detected |
| WHITE CITY WID | | 15,800 | Not detected |
| HOLLIDAY WATER COMPANY | | 15,000 | Not detected |
| MAPLETON CITY | | 14,000 | Not detected |
| ASHLEY VALLEY WATER AND SEWER ID | | 13,835 | Not detected |
| WOODS CROSS CITY WATER SYSTEM | | 13,110 | Not detected |
| TREMONTON CITY | | 13,000 | Not detected |
| LINDON CITY | | 11,900 | Not detected |
| HYRUM CITY | | 10,891 | Not detected |
| SOUTH DAVIS WATER DISTRICT | | 10,565 | Not detected |
| IVINS | | 10,465 | Not detected |
| SMITHFIELD CITY | | 10,223 | Not detected |
| ALPINE CITY | | 10,200 | Not detected |
| WEST POINT CITY WATER SYSTEM | | 10,040 | Not detected |
| CEDAR HILLS TOWN WATER SYSTEM | | 10,015 | Not detected |
| VERNAL CITY WATER SYSTEM | | 10,000 | Not detected |
| TAYLOR-WEST WEBER WID | | 9,900 | Not detected |
| STANSBURY PARK IMPROVEMENT DISTRICT | | 9,839 | Not detected |
| PROVIDENCE CITY WATER SYSTEM | | 9,690 | Not detected |
| SALEM CITY | | 9,298 | Not detected |
| WASHINGTON TERRACE CITY WATER SYSTEM | | 9,260 | Not detected |
| PLEASANT VIEW CULINARY WATER | | 9,250 | Not detected |
| NIBLEY CITY WATER | | 9,200 | Not detected |
| MOAB CITY | | 9,000 | Not detected |
| SANTA CLARA CITY | | 9,000 | Not detected |
| RIVERDALE CITY WATER SYSTEM | | 8,945 | Not detected |
| PRICE MUNICIPAL CORPORATION | | 8,867 | Not detected |
| NORTH LOGAN CITY | | 8,500 | Not detected |
| RICHFIELD CITY | | 8,360 | Not detected |
| MOUNTAIN REGIONAL WATER SSD | | 8,245 | Not detected |
| SOUTH WEBER WATER SYSTEM | | 8,125 | Not detected |
| ROOSEVELT CITY WATER SYSTEM | | 8,000 | Not detected |
| NEPHI CITY | | 7,122 | Not detected |
| MIDWAY CITY WATER SYSTEM | | 7,055 | Not detected |
| EPHRAIM CITY | | 7,000 | Not detected |
| PERRY CITY | | 6,570 | Not detected |
| ENOCH CITY WATER SYSTEM | | 6,500 | Not detected |
| FRUIT HEIGHTS CITY WATER SYSTEM | | 6,075 | Not detected |
| SUMMIT WATER DISTRIBUTION COMPANY | | 6,000 | Not detected |
| PRICE RIVER WID | | 5,790 | Not detected |
| WEST BOUNTIFUL CITY WATER SYSTEM | | 5,600 | Not detected |
| ELK RIDGE TOWN | | 5,510 | Not detected |
| SUNSET CITY WATER SYSTEM | | 5,300 | Not detected |