Arsenic in Drinking Water
What you need to know about arsenic in your tap water.
EPA Limit (MCL)
10 ppb
EPA Goal (MCLG)
0 ppb
Category
Inorganic
Health Effects
Skin damage, circulatory problems, increased cancer risk
Common Sources
Natural deposits, runoff from orchards, glass and electronics production
How to Remove Arsenic from Water
Recommended filtration methods: Reverse osmosis, distillation
26,789
Total Violations
2,609
Systems Affected
Arsenic Violations by State
| State | Violations | Systems |
|---|---|---|
| Texas | 7,286 | 333 |
| California | 5,504 | 189 |
| Arizona | 2,628 | 167 |
| Pennsylvania | 1,204 | 334 |
| New Mexico | 1,031 | 25 |
| Oregon | 791 | 56 |
| New York | 649 | 168 |
| Nevada | 599 | 36 |
| Oklahoma | 561 | 70 |
| Alaska | 538 | 69 |
| Michigan | 490 | 87 |
| Illinois | 440 | 45 |
| Idaho | 430 | 59 |
| Georgia | 401 | 116 |
| Colorado | 381 | 92 |
| Minnesota | 377 | 21 |
| New Hampshire | 366 | 67 |
| Utah | 345 | 61 |
| Indiana | 287 | 67 |
| Nebraska | 247 | 18 |
Water Systems with Most Arsenic Violations
TEMPE WSC 1
2,725 served265 violations
F
STORMLIGHT MOBILE HOME PARK
76 served248 violations
F
CITY OF SEMINOLE
7,386 served214 violations
F
NORTH EDWARDS WD
1,105 served208 violations
F
ELLINGER SEWER AND WSC
573 served199 violations
F
OLD RIVER WATER COMPANY
300 served188 violations
F
CAL AM - OAKHURST
3,693 served184 violations
A
PB & SC WATER SUPPLY CORPORATION
2,163 served178 violations
F
EOL WSC
2,195 served177 violations
F
BELEN WATER SYSTEM
10,830 served176 violations
F