Asbestos
Jefferson County Rural Water District 1
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.
47
Samples
2
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 | 2.97 MFL | 16 | 13 | ND - 12.17 MFL |
| 2015 | 0.05 MFL | 15 | 1 | ND - 0.73 MFL |
| 2016 | 0.42 MFL | 8 | 3 | ND - 2.74 MFL |
| 2017 | 0.49 MFL | 4 | 2 | ND - 1.58 MFL |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 2.24 MFL | 4 | 4 | 0.88 MFL - 3.16 MFL |
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 |
|---|---|---|
| 2014-02-25 | 2014-2-25 ASB 7 | 12.17 MFL |
| 2014-02-25 | 2014-2-25 ASB 6 | 1.22 MFL |
| 2014-02-25 | 2014-2-25 ASB 5 | 4.26 MFL |
| 2014-02-25 | 2014-2-25 ASB 2 | 1.01 MFL |
| 2014-05-12 | 2014-5-12 ASB 7 | 1.52 MFL |
| 2014-05-12 | 2014-5-12 ASB 6 | 2.03 MFL |
| 2014-05-12 | 2014-5-12 ASB 5 | 1.18 MFL |
| 2014-05-28 | 2014-5-28 ASB 2 | 7.61 MFL |
| 2014-08-18 | 2014-8-18 ASB 2 | 1.11 MFL |
| 2014-08-18 | 2014-8-18 ASB 5 | ND |
| 2014-08-18 | 2014-8-18 ASB 6 | ND |
| 2014-08-18 | 2014-8-18 ASB 7 | 0.37 MFL |
| 2014-11-04 | 2014-11-4 ASB 7 | 4.81 MFL |
| 2014-11-04 | 2014-11-4 ASB 6 | ND |
| 2014-11-04 | 2014-11-4 ASB 5 | 4.63 MFL |
| 2014-11-04 | 2014-11-4 ASB 2 | 5.55 MFL |
| 2015-03-02 | 2015-03-02 ASB 7 | ND |
| 2015-03-02 | 2015-03-02 ASB 6 | ND |
| 2015-03-02 | 2015-03-02 ASB 5 | ND |
| 2015-03-02 | 2015-03-02 ASB 2 | ND |
| 2015-05-20 | 2015-5-20 ASB 7 | ND |
| 2015-05-20 | 2015-5-20 ASB 6 | ND |
| 2015-05-20 | 2015-5-20 ASB 5 | 0.73 MFL |
| 2015-09-01 | 2015-9-1 ASB 7 | ND |
| 2015-09-01 | 2015-9-1 ASB 6 | ND |
| 2015-09-01 | 2015-9-1 ASB 5 | ND |
| 2015-09-01 | 2015-9-1 ASB 2 | ND |
| 2015-11-18 | 2015-11-18 ASB 7 | ND |
| 2015-11-18 | 2015-11-18 ASB 6 | ND |
| 2015-11-18 | 2015-11-18 ASB 5 | ND |
| 2015-11-18 | 2015-11-18 ASB 2 | ND |
| 2016-02-08 | 2016-2-8 ASB 2 | 0.39 MFL |
| 2016-02-08 | 2016-2-8 ASB 5 | 2.74 MFL |
| 2016-02-08 | 2016-2-8 ASB 6 | ND |
| 2016-02-08 | 2016-2-8 ASB 7 | ND |
| 2016-05-09 | 2016-5-9 ASB 7 | ND |
| 2016-05-09 | 2016-5-9 ASB 6 | ND |
| 2016-05-09 | 2016-5-9 ASB 5 | 0.20 MFL |
| 2016-05-09 | 2016-5-9 ASB 2 | ND |
| 2017-04-03 | 2017-4-3 ASB 7 | ND |
| 2017-04-03 | 2017-4-3 ASB 6 | 1.58 MFL |
| 2017-04-03 | 2017-4-3 ASB 5 | ND |
| 2017-04-03 | 2017-4-3 ASB 2 | 0.39 MFL |
| 2019-04-29 | 2019-4-29 ASB 2 | 3.16 MFL |
| 2019-04-29 | 2019-4-29 ASB 7 | 2.81 MFL |
| 2019-04-29 | 2019-4-29 ASB 6 | 0.88 MFL |
| 2019-04-29 | 2019-4-29 ASB 5 | 2.11 MFL |