Asbestos
Metropolitan DWID
Asbestos is a mineral fiber introduced into water by the dissolution of asbestos-containing minerals and from decay of asbestos cement in water mains. Asbestos causes cancer when ingested or inhaled.
20
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 2 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 14 | 0 | ND |
MFL = million fibers per liter
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 7 MFL
The legal limit for asbestos, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s.
MFL = million fibers per liter
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-08-21 | 2014-08508-1 | ND |
| 2014-10-15 | 2014-10842-1 | ND |
| 2015-05-26 | 2015-05606-02 | ND |
| 2015-05-26 | 2015-05606-01 | ND |
| 2018-05-02 | 2018-04384-1 | ND |
| 2018-10-09 | 2018-09284-1 | ND |
| 2019-05-14 | 201905150736A | ND |
| 2019-05-14 | 201905150735A | ND |
| 2019-05-21 | 2019-04854-1 | ND |
| 2019-05-21 | 2019-04854-2 | ND |
| 2019-05-21 | 19E0529-01 | ND |
| 2019-05-22 | 201905240126A | ND |
| 2019-05-22 | 201905240125A | ND |
| 2019-05-22 | 201905240124A | ND |
| 2019-05-22 | 201905240123A | ND |
| 2019-05-22 | 201905240122A | ND |
| 2019-05-28 | 19E6004-05 | ND |
| 2019-05-28 | 2019-05045-3 | ND |
| 2019-05-28 | 2019-05045-2 | ND |
| 2019-05-28 | 2019-05045-1 | ND |