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Arsenic and Old Laws
A Scientific and Public Health Analysis of Arsenic Occurrence in Drinking Water, Its Health Effects, and EPA's Outdated Arsenic Tap Water Standard

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Table 5

50 Public Water Systems Of Any Size With Highest Average Arsenic Levels (Ranked by Best Estimate of Average Concentration)

Note: To print portions of this chart, in the Print dialogue box choose Properties and Paper and set to Legal and Landscape and click OK; under Print Range choose "from 1 to 1" and click OK (this will print one page and lock in settings); then use Print Preview to determine which page(s) to print.

Natural Resources Defense Council, February 2000.
Based on EPA's 25-State Arsenic Database of Samples Taken and Reported to States from 19801998 (see important note below).
Contact Your Water System or State for All Sample Results.
Rank Water System Name State Population Served Low Est. of Average Arsenic Level (ppb) Best Est. of Average Arsenic Level (ppb) # Samples in Which Arsenic Was Detected # of Samples in Which Arsenic Was Not Detected Min Level Found (ppb) Max Level Found Most Recent Sample in EPA Database (ppb) Date of Most Recent Sample in EPA Database
1 PAUG VIK, INC. INLET SALMON AK 25 220.0 220.0 1 0 220.0 220.0 220.0 4/30/91
2 J TRAILER PARK CA 25 210.0 210.0 2 0 210.0 210.0 (av) 210.0 9/28/93
3 DATELAND VINEYARD LABOR AZ 75 195.0 195.0 4 0 10.0 370.0 10.0 2/27/91
4 SOUTHWEST SPORTS PLEX TX 300 162.0 162.0 1 0 162.0 162.0 162.0 3/25/94
5 TOLAS PARK NV 109 150.0 150.0 1 0 150.0 150.0 150.0 12/3/96
6 SAN YSIDRO WATER SUPPLY SYSTEM NM 300 140.3 140.3 7 0 1.0 240.0 240.0 1/27/98
7 HCO FACILITY & PROPERTY MANAGEMENT TX 3000 138.0 138.0 1 0 138.0 138.0 138.0 5/25/94
8 MONTGOMERY MOBILE HOME PARK NV 150 130.0 130.0 1 0 130.0 130.0 130.0 12/23/96
9 DSET LABORATORIES WATER AZ 56 125.3 125.3 3 0 18.0 340.0 18.0 4/8/92
10 ALASKA RAINBOW LODGE AK 26 120.0 120.0 1 0 120.0 120.0 120.0 7/19/95
11 VISTA HERMOSA MHP AZ 180 118.2 118.2 27 0 13.0 404.0 44.0 8/17/94
12 MOUNTAIN HOME ESTATES ASSN NH 500 107.9 107.9 10 0 5.0 470.0 27.0 1/28/94
13 ROOSEVELT LAKE RV PARK AZ 200 93.2 93.7 18 2 <10.0 220.0 16.0 3/1/98
14 LKSD NAPAKIAK HS & ELEM AK 124 93.3 93.3 3 0 34.0 193.0 53.0 4/3/95
15 WYNRIDGE CONDOMINIUM NH 58 92.3 93.2 2 1 <5.0 265.0 <5.0 2/8/94
16 CITY OF FALLON NV 7000 90.0 90.0 1 0 90.0 90.0 90.0 3/19/96
17 MOUNT WESKE ESTATES MUTUAL WATER COMPANY CA 71 89.4 89.4 5 0 67.0 120.0 80.0 2/28/97
18 WESTHAVEN MOBILE COURT MI 193 89.0 89.0 1 0 89.0 89.0 89.0 6/29/94
19 FALLON NAVAL AIR STATION NV 4850 85.0 85.0 1 0 85.0 85.0 85.0 6/4/96
20 WHY UTILITY CORP AZ 960 80.8 81.4 14 5 <1.0 210.0 <5.0 6/16/97
21 LKSD NAPASKIAK Z J WILLIAMS SC AK 121 79.7 79.7 8 1 <1.0 250.0 29.0 4/3/95
22 OKLAHOMA UNIVERSITY OK 22738 78.5 78.5 20 0 8.0 193.0 (av) 180.3 2/13/96
23 NAPASKIAK WATER SYSTEM AK 367 77.5 78.0 4 2 <1.0 300.0 <5.0 6/18/96
24 SABROSA WATER CO NEW RIV AZ 270 77.4 77.6 24 1 <10.0 110.0 (av) 35.7 4/18/97
25 SEVENTH DAY ADVENTIST SCHOOL MI 50 76.0 76.0 1 0 76.0 76.0 76.0 8/24/95
26 MITCHELL'S CORNER WATER SYSTEM CA 32 73.0 73.0 1 0 73.0 73.0 73.0 12/21/95
27 FLYING A TRAILER PARK NV 25 73.0 73.0 1 0 73.0 73.0 73.0 6/20/95
28 BREEZY PINES WATER INC-L AZ 50 71.5 71.5 2 0 23.0 120.0 23.0 7/12/92
29 OLIVET ELEMENTARY SCHOOL CA 450 71.1 71.1 11 0 49.0 95.0 60.0 4/10/97
30 CAROLINA FOREST S/D NC 360 69.4 69.6 6 1 3.0 360.0 (best av) 32.1 3/12/97
31 FOUNTAIN TRAILER PARK WATER CA 40 69.0 69.0 1 0 69.0 69.0 69.0 5/26/93
32 PRAIRIE VIEW ESTATES MHP IL 120 67.1 67.1 12 0 36.0 92.0 83.0 12/10/98
33 BADGER DEN AK 150 66.1 66.1 7 0 6.0 109.0 26.0 4/10/89
34 KOUNTRY MANOR MOBILE HOME PARK MN 75 65.8 65.8 18 0 7.9 260.0 9.2 10/6/97
35 CITY OF CHENEY KS 1560 65.1 65.1 6 0 1.5 200.6 1.5 3/14/97
36 BRUNI RURAL WATER SUPPLY CORP TX 363 65.0 65.0 2 0 34.3 95.7 95.7 4/11/96
37 CORAL GABLES MOTEL MI 25 64.0 64.0 1 0 64.0 64.0 64.0 8/14/96
38 WINDEMERE POINT S/D NC 25 63.0 63.4 3 1 <3.0 128.0 <3.0 12/21/93
39 CAVE CREEK WATER AZ 1300 63.0 63.3 38 3 <5.0 290.0 <5.0 2/27/96
40 PHILADELPHIA WATER SYSTEM AZ 75 62.3 62.3 3 0 31.0 79.0 31.0 3/16/93
41 CAMP VERDE WTR SYSTEM AZ 1500 58.3 58.5 27 2 <5.0 138.0 (av) 79.0 6/27/96
42 LKSD TUNTUTULIAK ANGAPAK SC AK 101 58.2 58.3 8 1 <1.0 144.0 30.1 4/1/96
43 MONTROSE TRAILER PARK MI 125 56.5 56.5 1 0 56.5 56.5 56.5 6/29/94
44 BYRON WOODS SBDV IL 216 56.3 56.3 13 0 39.0 70.0 58.0 12/15/98
45 FERNLEY UTILITIES NV 5950 56.0 56.0 1 0 56.0 56.0 56.0 8/7/97
46 LKSD KWETHLUK HS & ELEM AK 225 55.5 55.6 7 1 <1.0 75.0 <1.0 10/5/93
47 LAMCREST ENTERPRISES AZ 40 55.2 55.2 17 0 46.0 68.0 54.0 2/6/98
48 KENAI WILDERNESS LODGE AK 25 54.0 54.0 1 0 54.0 54.0 54.0 6/6/91
49 SOUTH MAINE ADULT MHP NV 168 54.0 54.0 1 0 54 54 54 9/23/96
50 CEDAR LODGE MOTEL/SUPERIOR TRL NV 100 53.5 53.5 2 0 12 95 95 3/23/96
* Important note regarding arsenic levels in individual water systems listed in this report: The information on arsenic levels in public water systems included in the NRDC report Arsenic and Old Laws is derived from the U.S. Environmental Protection Agency's (EPA) 25-state arsenic database, which includes samples taken from 1980 to 1998. NRDC has not independently verified these data, which EPA collected from state drinking water program officials, and compiled into the 25-state arsenic database. Additional sampling may have been completed for some water systems after the EPA database was compiled. To verify information on all sampling completed to date for a public water system, contact your state drinking water program (call EPA's drinking water Hotline at 800 426-4791 for state contacts) or your water system.

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