Know Your Environment. Protect Your Health.

1,1-Dichloroethylene

Manchester Water Department

1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.

 

98

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0294 ppb171ND - 0.500 ppb
20190.0438 ppb161ND - 0.700 ppb
20200.156 ppb163ND - 1.06 ppb
20210.0763 ppb162ND - 0.720 ppb
20220.0313 ppb161ND - 0.500 ppb
2023ND170ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 7 ppb

The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-08AA82328-VOC1ND
2018-01-08AA82323-VOC1ND
2018-01-08AA82329-VOC1ND
2018-01-09AA82347-VOC1ND
2018-01-09AA82350-VOC1ND
2018-01-09AA82348-VOC1ND
2018-01-10AA82372-VOC1ND
2018-01-10AA82373-VOC10.500 ppb
2018-04-10AA83453-VOC1ND
2018-04-10AA83456-VOC1ND
2018-04-11AA83470-VOC1ND
2018-07-17AA84728-VOC1ND
2018-07-18AA84742-VOC1ND
2018-07-18AA84743-VOC1ND
2018-10-16AA85887-VOC1ND
2018-10-17AA85906-VOC1ND
2018-10-17AA85907-VOC1ND
2019-01-15AA86956-VOC1ND
2019-01-15AA86957-VOC1ND
2019-01-16AA86968-VOC1ND
2019-01-16AA86974-VOC1ND
2019-01-16AA86975-VOC1ND
2019-01-17AA86989-VOC1ND
2019-01-17AA86990-VOC1ND
2019-04-23AA88123-VOC1ND
2019-04-24AA88140-VOC10.700 ppb
2019-04-24AA88139-VOC1ND
2019-07-08AA89073-VOC1ND
2019-07-08AA89074-VOC1ND
2019-07-10AA89110-VOC1ND
2019-10-08AA90268-VOC1ND
2019-10-09AA90285-VOC1ND
2019-10-09AA90287-VOC1ND
2020-01-21AA91524-VOC1ND
2020-01-21AA91525-VOC1ND
2020-01-21AA91522-VOC1ND
2020-01-21AA91523-VOC1ND
2020-01-21AA91526-VOC1ND
2020-01-22AA91540-VOC1ND
2020-01-23AA91552-VOC1ND
2020-04-14AA92522-VOC1ND
2020-04-14AA92524-VOC1ND
2020-04-15AA92546-VOC10.530 ppb
2020-07-07AA93640-VOC1ND
2020-07-07AA93643-VOC1ND
2020-07-07AA93644-VOC11.06 ppb
2020-10-13AA95168-VOC1ND
2020-10-14AA95186-VOC1ND
2020-10-14AA95187-VOC10.910 ppb
2021-01-12210112-3-04 VOCND
2021-01-20210120-3-06 VOC0.720 ppb
2021-01-20210120-3-05 VOCND
2021-04-12210412-3-02 VOCND
2021-04-12210412-3-04 VOCND
2021-04-12210412-3-05 VOCND
2021-04-12210412-3-01VOCND
2021-04-13210413-3-03 VOCND
2021-04-14210414-1-06VOCND
2021-04-14210414-3-06VOCND
2021-07-14210714-3-04 VOCND
2021-07-14210714-3-05 VOCND
2021-07-14210714-3-06 VOC0.500 ppb
2021-10-12211012-3-05 VOCND
2021-10-12211012-3-04 VOCND
2021-10-13211013-3-06 VOCND
2022-01-04220104-3-04 VOCND
2022-01-05220105-3-05 VOCND
2022-01-05220105-3-06 VOC0.500 ppb
2022-04-13220413-3-04 VOCND
2022-04-13220413-3-05 VOCND
2022-04-13220413-3-06 VOCND
2022-07-06220706-3-05VOCND
2022-07-06220706-4-01VOCND
2022-07-18220718-3-02 VOCND
2022-07-18220718-3-01VOCND
2022-07-19220719-1-06 VOCND
2022-07-19220719-3-03 VOCND
2022-07-19220719-3-04 VOCND
2022-10-11221011-3-04 VOCND
2022-10-12221012-3-05 VOCND
2022-10-12221012-3-06 VOCND
2023-01-17230117-3-03 VOCND
2023-01-17230117-3-04 VOCND
2023-01-19230119-3-06 VOCND
2023-01-31230131-3-07VOCND
2023-04-03230403-3-05VOCND
2023-04-04230404-3-06VOCND
2023-04-05230405-3-04VOCND
2023-07-17230717-3-01VOCND
2023-07-17230717-3-02 VOCND
2023-07-17230717-3-03 VOCND
2023-07-17230717-3-04 VOCND
2023-07-17230717-3-05 VOCND
2023-07-19230719-3-06 VOCND
2023-09-07230907-1-06VOCND
2023-10-02231002-3-04VOCND
2023-10-02231002-3-05VOCND
2023-10-04231004-3-06VOCND