| 1 | COLLEGEVILLE TRAPPE JOINT PWD | PA | 235.0 ppt | 59× |
| 2 | POTRERO ELEMENTARY SCHOOL | CA | 188.3 ppt | 47× |
| 3 | LUBECK PSD | WV | 179.5 ppt | 45× |
| 4 | PEQUENAKONCK ELEMENTARY SCHOOL | NY | 111.5 ppt | 28× |
| 5 | RAYNHAM CENTER WATER DISTRICT | MA | 92.0 ppt | 23× |
| 6 | CAERNARVON TWP AUTH | PA | 55.8 ppt | 14× |
| 7 | COLLINSVILLE WATER WORKS | AL | 52.5 ppt | 13× |
| 8 | PARKERSBURG UTILITY BOARD | WV | 46.5 ppt | 12× |
| 9 | BEALETON REGIONAL | VA | 44.6 ppt | 11× |
| 10 | LIVINGSTON TWP DIV OF WATER | NJ | 44.0 ppt | 11× |
| 11 | PALMERTON MUNICIPAL AUTHORITY | PA | 42.5 ppt | 11× |
| 12 | VERONA WATER DEPARTMENT | NJ | 42.3 ppt | 11× |
| 13 | PAYSON TOWN OF | AZ | 40.9 ppt | 10× |
| 14 | GONZALEZ UTILITIES ASSOCIATION, INC. | FL | 39.2 ppt | 9.8× |
| 15 | TEMPE CITY OF | AZ | 38.7 ppt | 9.7× |
| 16 | GEORGETOWN WATER DEPARTMENT | DE | 36.0 ppt | 9.0× |
| 17 | SAVANNAH VALLEY U. D. | TN | 35.0 ppt | 8.8× |
| 18 | COLUMBUS | GA | 33.9 ppt | 8.5× |
| 19 | CITY OF ATWATER | CA | 33.0 ppt | 8.3× |
| 20 | GADSDEN WATER WORKS AND SEWER BOARD | AL | 32.0 ppt | 8.0× |
| 21 | WILLIAMSTOWN WATER DEPT | WV | 32.0 ppt | 8.0× |
| 22 | GRAND BAY WATER WORKS BOARD | AL | 31.4 ppt | 7.8× |
| 23 | RIDGEWOOD WATER | NJ | 31.4 ppt | 7.8× |
| 24 | LAFAYETTE | GA | 31.0 ppt | 7.8× |
| 25 | AUDUBON WATER COMPANY | PA | 30.8 ppt | 7.7× |
| 26 | HO HO KUS WATER DEPT | NJ | 30.4 ppt | 7.6× |
| 27 | ONTARIO MUNICIPAL UTILITIES COMPANY | CA | 30.0 ppt | 7.5× |
| 28 | ROBESON COUNTY WATER SYSTEM | NC | 30.0 ppt | 7.5× |
| 29 | AUGUSTA-RICHMOND CO WS | GA | 29.9 ppt | 7.5× |
| 30 | TOWN OF ANTHONY | TX | 29.1 ppt | 7.3× |
| 31 | CALHOUN | GA | 29.0 ppt | 7.3× |
| 32 | YESHIVA FARM SETTLEMENT | NY | 27.8 ppt | 7.0× |
| 33 | BROOKWOOD COMM WTR SYSTEM | NC | 27.5 ppt | 6.9× |
| 34 | ORANGEWOOD WATER SYSTEM | FL | 27.1 ppt | 6.8× |
| 35 | NORTHEAST ETOWAH COUNTY WATER CO-OP | AL | 27.0 ppt | 6.8× |
| 36 | HIGHLAND WATER AUTHORITY | AL | 26.7 ppt | 6.7× |
| 37 | SHELBY COUNTY WATER SYSTEM | AL | 26.1 ppt | 6.5× |
| 38 | CLANTON WATER DEPARTMENT | AL | 26.0 ppt | 6.5× |
| 39 | EMERALD COAST UTILITIES AUTHORITY | FL | 25.8 ppt | 6.5× |
| 40 | NEWARK WATER DEPARTMENT, DE | DE | 25.3 ppt | 6.3× |
| 41 | SUEZ WATER DELAWARE | DE | 24.4 ppt | 6.1× |
| 42 | CITY OF LANCASTER, PA | PA | 23.8 ppt | 6.0× |
| 43 | Hastings, MN | MN | 23.7 ppt | 5.9× |
| 44 | TOWN OF ELKTON | MD | 23.3 ppt | 5.8× |
| 45 | WALDWICK WATER DEPT | NJ | 23.3 ppt | 5.8× |
| 46 | ARTESIAN WATER COMPANY | DE | 23.1 ppt | 5.8× |
| 47 | SOUTH BRUNSWICK TWP W DI | NJ | 23.0 ppt | 5.8× |
| 48 | EMMAUS BOROUGH PUBLIC WATER | PA | 22.4 ppt | 5.6× |
| 49 | SUEZ WATER PA BETHEL | PA | 22.3 ppt | 5.6× |
| 50 | PORTERVILLE, CITY OF | CA | 22.0 ppt | 5.5× |
| 51 | OAKLAND WATER DEPT, NJ | NJ | 22.0 ppt | 5.5× |
| 52 | BUCKINGHAM TWP COLD SPRING | PA | 22.0 ppt | 5.5× |
| 53 | EXPERIMENTAL | PR | 22.0 ppt | 5.5× |
| 54 | FRUSI WATER TREATMENT PLANT | KS | 21.1 ppt | 5.3× |
| 55 | ALABASTER WATER BOARD | AL | 21.0 ppt | 5.3× |
| 56 | STERRETT-VANDIVER WATER SYSTEM | AL | 21.0 ppt | 5.3× |
| 57 | BIG PARK WATER COMPANY | AZ | 21.0 ppt | 5.3× |
| 58 | SOMERS TOWN HOUSE/HALL | NY | 21.0 ppt | 5.3× |
| 59 | TOMAHAWK WATERWORKS | WI | 21.0 ppt | 5.3× |
| 60 | SANTA CLARITA VALLEY W.A.-SANTA CLARITA | CA | 20.5 ppt | 5.1× |
| 61 | CITY OF VIDALIA WATER SYSTEM | LA | 20.1 ppt | 5.0× |
| 62 | CHATTOOGA COUNTY | GA | 20.0 ppt | 5.0× |
| 63 | WARREN COMM W AND S ASSN 2 | OH | 20.0 ppt | 5.0× |
| 64 | COLBERT COUNTY RURAL WATER SYSTEM | AL | 19.8 ppt | 5.0× |
| 65 | NORTHAMPTON BUCKS CO MUN AUTH | PA | 19.6 ppt | 4.9× |
| 66 | PRATTVILLE (WATER WORKS BOARD OF) | AL | 19.2 ppt | 4.8× |
| 67 | TRI COMMUNITY WATER SYSTEM | AL | 19.0 ppt | 4.8× |
| 68 | WETUMPKA WATER WORKS & SEWER BOARD | AL | 19.0 ppt | 4.8× |
| 69 | JOHNSON UTIL - ANTHEM AT MERRILL RANCH | AZ | 19.0 ppt | 4.8× |
| 70 | PERTH AMBOY WATER DEPARTMENT | NJ | 19.0 ppt | 4.8× |
| 71 | PENNSVILLE TWSP. WATER DEPART. | NJ | 19.0 ppt | 4.8× |
| 72 | GARDEN CITY PARK WD | NY | 19.0 ppt | 4.8× |
| 73 | IREDELL WATER CORPORATION | NC | 18.8 ppt | 4.7× |
| 74 | GOLDEN HILLS CSD | CA | 18.6 ppt | 4.7× |
| 75 | BURLINGTON TWP W DEPT | NJ | 18.5 ppt | 4.6× |
| 76 | GWA NORTHERN WATER SYSTEM | GU | 18.3 ppt | 4.6× |
| 77 | CITY OF CLOVIS | CA | 18.0 ppt | 4.5× |
| 78 | RIVERSIDE HIGHLAND WATER COMPANY | CA | 18.0 ppt | 4.5× |
| 79 | COLLINSVILLE, IL | IL | 18.0 ppt | 4.5× |
| 80 | GAFFNEY BPW (1110001) | SC | 18.0 ppt | 4.5× |
| 81 | ALLENDALE WATER DEPT | NJ | 17.8 ppt | 4.5× |
| 82 | KENNETT SQUARE MUN WATER WORKS | PA | 17.7 ppt | 4.4× |
| 83 | HORSHAM WATER&SEWER AUTHORITY | PA | 17.5 ppt | 4.4× |
| 84 | CITY OF SACRAMENTO MAIN | CA | 17.3 ppt | 4.3× |
| 85 | ROME | GA | 17.3 ppt | 4.3× |
| 86 | FIRST U.D. OF HARDIN COUNTY | TN | 17.3 ppt | 4.3× |
| 87 | PARK RIDGE WATER DEPT | NJ | 17.2 ppt | 4.3× |
| 88 | Woodbury | MN | 17.1 ppt | 4.3× |
| 89 | HOLTVILLE WATER SYSTEM | AL | 17.0 ppt | 4.3× |
| 90 | WEST ETOWAH WATER & FIRE PRO AUTHORITY | AL | 17.0 ppt | 4.3× |
| 91 | SANTA CLARITA VALLEY W.A.-VALENCIA DIVIS | CA | 16.9 ppt | 4.2× |
| 92 | PUTNAM COMMUNITY WATER ASSOCIATION PWS | OH | 16.9 ppt | 4.2× |
| 93 | JAMIE HOLLANDERS | PA | 16.8 ppt | 4.2× |
| 94 | CLIFFDALE WEST | NC | 16.3 ppt | 4.1× |
| 95 | CITY OF REDDING | CA | 16.2 ppt | 4.0× |
| 96 | AQUA PA HATBORO | PA | 16.2 ppt | 4.0× |
| 97 | DRAYTONVILLE WATER DIST (1120003) | SC | 16.2 ppt | 4.0× |
| 98 | MARBURY WATER SYSTEM, INC. | AL | 16.1 ppt | 4.0× |
| 99 | LOACHAPOKA WATER AUTHORITY | AL | 16.0 ppt | 4.0× |
| 100 | CITY OF FRESNO | CA | 16.0 ppt | 4.0× |
