Silver
Status: No national drinking water standard exists
Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.
2015:
13
states detected
266
utilities detected
2.7 million
people served
States reporting silver in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| Kentucky | 11 | 857,204 | |
| Florida | 169 | 712,312 | |
| Pennsylvania | 5 | 271,194 | |
| Alaska | 9 | 242,938 | |
| Texas | 24 | 241,626 | |
| Virginia | 12 | 176,964 | |
| Wisconsin | 4 | 126,571 | |
| New Jersey | 18 | 46,182 | |
| Illinois | 1 | 18,992 | |
| Alabama | 3 | 15,009 | |
| Arkansas | 4 | 14,189 | |
| Missouri | 2 | 2,109 | |
| Connecticut | 4 | 1,416 | |
Utilities with the highest amounts of silver, 2015
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Speer Mobile Home Park | Plant City, FL | 1 of 1 | 73.0 ppb | 270 |
| Rapidan Service Authority* | Ruckersville, VA | 1 of 1 | 50.0 ppb | 7,464 |
| Fruit Cove Oaks | Fruit Cove, FL | 1 of 1 | 36.0 ppb | 463 |
| College Mobile Home Park | Orlando, FL | 1 of 1 | 22.0 ppb | 90 |
| Lake Region Mobile Home Village | Haines City, FL | 1 of 2 | 16.3 ppb | 930 |
| Suwannee Water & Sewer District | Suwannee, FL | 1 of 1 | 14.0 ppb | 1,300 |
| Landfair Subdivision | Ocala, FL | 1 of 1 | 13.0 ppb | 580 |
| Greenbriar I | Hernando, FL | 1 of 1 | 9.10 ppb | 300 |
| Fanning Springs Ws | Fanning Springs, FL | 1 of 1 | 8.90 ppb | 203 |
| Caroline Utility System* | Bowling Green, VA | 5 of 6 | 7.67 ppb | 4,799 |
| Bowling Green, Town of | Bowling Green, VA | 1 of 1 | 7.00 ppb | 1,152 |
| Brendenwood Waterworks | Grand Island, FL | 1 of 1 | 5.40 ppb | 130 |
| Verndale Apartments | Lake City, FL | 1 of 3 | 4.73 ppb | 200 |
| Middleburg Bluff Apartments | Middleburg, FL | 1 of 1 | 4.30 ppb | 95 |
| Strawberry Fields Mobile Home Park | Plant City, FL | 1 of 1 | 4.20 ppb | 250 |
| Northampton Boro Municipal Authority* | Northampton, PA | 1 of 1 | 4.00 ppb | 40,000 |
| Grand Island Resort Mobile Home Park | Grand Island, FL | 1 of 1 | 3.50 ppb | 680 |
| Zellwood Water Users Inc. | Zellwood, FL | 1 of 2 | 3.45 ppb | 1,257 |
| Bronson Water Treatment Plant | Bronson, FL | 1 of 1 | 3.30 ppb | 1,125 |
| The Lakes of Wellington | Lutz, FL | 1 of 1 | 3.10 ppb | 260 |
| Sweetwater Oaks | Ocala, FL | 1 of 1 | 3.00 ppb | 240 |
| Tall Timber Travel Trailer Park | Silver Springs, FL | 1 of 1 | 2.90 ppb | 95 |
| Falmouth Water Department* | Falmouth, KY | 1 of 1 | 2.80 ppb | 3,861 |
| Pemberton Borough Water* | Pemeberton, NJ | 3 of 3 | 2.59 ppb | 1,610 |
| Tradewinds Village | Ocala, FL | 1 of 1 | 2.30 ppb | 1,313 |
| Teakwood Mobile Home Park | Yulee, FL | 1 of 1 | 2.10 ppb | 80 |
| Slc Water Supply Corporation | Groesbeck, TX | 1 of 1 | 2.10 ppb | 1,704 |
| Emil-mar Subdivision | Ocala, FL | 1 of 1 | 2.10 ppb | 270 |
| Green Bay Waterworks* | Green Bay, WI | 1 of 1 | 2.00 ppb | 104,057 |
| Aquarion Water Company of Ct-craigmoor | Ridgefield, CT | 1 of 1 | 2.00 ppb | 68 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Silver, but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Northampton Boro Municipal Authority* | Northampton, PA | 1 of 1 | 4.00 ppb | 40,000 |
| Green Bay Waterworks* | Green Bay, WI | 1 of 1 | 2.00 ppb | 104,057 |
| PBCWUD - Lake Region WTP - System 11 | West Palm Beach, FL | 1 of 1 | 1.50 ppb | 30,536 |
| City of Paris* | Paris, TX | 1 of 1 | 1.30 ppb | 30,993 |
| Marion Waterworks* | Marion, AR | 2 of 3 | 1.20 ppb | 12,345 |
| Louisville Water Company* | Louisville, KY | 2 of 4 | 1.13 ppb | 764,769 |
| City of Denton* | Denton, TX | 1 of 2 | 0.495 ppb | 115,233 |
| Municipality of Anchorage* | Anchorage, AK | 1 of 13 | 0.385 ppb | 221,351 |
| St. Johns County Utilities-Ponte Vedra | Ponte Vedra Beach, FL | 1 of 1 | 0.300 ppb | 13,220 |
| City of Cleburne | Cleburne, TX | 2 of 4 | 0.258 ppb | 30,000 |
| City of Anna | Anna, TX | 1 of 4 | 0.208 ppb | 10,262 |
| Orange Park Grid | Middleburg, FL | 1 of 1 | 0.200 ppb | 109,991 |
| Dunedin Water System | Dunedin, FL | 1 of 1 | 0.200 ppb | 40,093 |
| Lake Zurich | Lake Zurich, IL | 2 of 4 | 0.167 ppb | 18,992 |
| Clearwater Water System* | Clearwater, FL | 1 of 3 | 0.0333 ppb | 110,000 |
| Western Virginia Water Authority* | Roanoke, VA | 1 of 9 | 0.00111 ppb | 155,000 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Silver, but it likely has the contaminant in its water supply.