Perfluorohexane sulfonate (PFHXS)
Merrimack Village District
Perfluorohexane sulfonate is a member of a group of perfluorinated chemicals used in many consumer products. Perfluorinated chemicals can cause serious health effects, including cancer, endocrine disruption, accelerated puberty, liver and immune system damage, and thyroid changes. These chemicals are persistent in the environment and they accumulate in people. Click here to read more about perfluorinated chemicals.
340
Samples
0
Samples exceeding legal limit (MCL)
61
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 7 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | 0.347 ppt | 217 | 11 | ND - 32.0 ppt |
| 2017 | 0.118 ppt | 17 | 2 | ND - 1.000 ppt |
| 2018 | 1.08 ppt | 44 | 44 | 0.560 ppt - 2.60 ppt |
| 2019 | 1.06 ppt | 54 | 54 | 0.490 ppt - 1.60 ppt |
ppt = parts per trillion
State and national drinking water standards and health guidelines
EWG Health Guideline 1 ppt
The EWG Health Guideline of 1 ppt for perfluorohexane sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline applies to the entire class of PFAS detected in water.
EPA Maximum Contaminant
Level (MCL) 10 ppt
ppt = parts per trillion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-04-14 | 35134213003AM | ND |
| 2014-04-14 | 35134213001AM | ND |
| 2014-04-22 | 35135015001AM | ND |
| 2014-07-14 | 35146449001AM | ND |
| 2014-10-07 | 35158589005AM | ND |
| 2014-10-07 | 35158589001AM | ND |
| 2014-10-07 | 35158589003AM | ND |
| 2015-06-15 | 35193367001AM | ND |
| 2016-03-09 | K1602447-003 | ND |
| 2016-03-09 | K1602447-001 | ND |
| 2016-03-09 | K1602447-002 | ND |
| 2016-03-09 | K1602447-004 | ND |
| 2016-03-31 | K1603194-001 | ND |
| 2016-03-31 | K1603194-006 | ND |
| 2016-03-31 | K1603194-003 | ND |
| 2016-03-31 | K1603194-004 | ND |
| 2016-03-31 | K1603194-005 | ND |
| 2016-03-31 | K1603194-002 | ND |
| 2016-04-07 | K1603528-005 | ND |
| 2016-04-07 | K1603528-001 | ND |
| 2016-04-07 | K1603528-003 | ND |
| 2016-04-07 | K1603528-002 | ND |
| 2016-04-07 | K1603528-004 | ND |
| 2016-04-14 | K1603866-001 | ND |
| 2016-04-14 | K1603866-004 | ND |
| 2016-04-14 | K1603866-002 | ND |
| 2016-04-14 | K1603866-005 | ND |
| 2016-04-14 | K1603866-006 | ND |
| 2016-04-14 | K1603866-003 | 4.70 ppt |
| 2016-04-21 | K1604106-002 | ND |
| 2016-04-21 | K1604106-005 | ND |
| 2016-04-21 | K1604106-003 | ND |
| 2016-04-21 | K1604106-006 | 8.20 ppt |
| 2016-04-21 | K1604106-001 | ND |
| 2016-04-21 | K1604106-004 | ND |
| 2016-04-28 | K1604467-004 | ND |
| 2016-04-28 | K1604467-001 | ND |
| 2016-04-28 | K1604467-002 | ND |
| 2016-04-28 | K1604467-003 | ND |
| 2016-04-28 | K1604467-006 | ND |
| 2016-04-28 | K1604467-005 | ND |
| 2016-05-05 | K1604775-002 | ND |
| 2016-05-05 | K1604775-001 | ND |
| 2016-05-05 | K1604775-004 | ND |
| 2016-05-05 | K1604775-005 | ND |
| 2016-05-05 | K1604775-003 | 6.80 ppt |
| 2016-05-05 | K1604775-006 | ND |
| 2016-05-12 | K1604985-003 | ND |
| 2016-05-12 | K1604985-002 | ND |
| 2016-05-12 | K1604985-005 | ND |
| 2016-05-12 | K1604985-004 | ND |
| 2016-05-12 | K1604985-001 | ND |
| 2016-05-12 | K1604985-006 | ND |
| 2016-05-19 | 1605251-01 | ND |
| 2016-05-19 | 1605251-05B | ND |
| 2016-05-19 | 1605251-05 | ND |
| 2016-05-19 | 1605251-03B | ND |
| 2016-05-19 | 1605251-04B | ND |
| 2016-05-19 | 1605251-02B | ND |
| 2016-05-19 | 1605251-06 | ND |
| 2016-05-19 | 1605251-02 | ND |
| 2016-05-19 | 1605251-01B | ND |
| 2016-05-19 | 1605251-06B | ND |
| 2016-05-19 | 1605251-03 | ND |
| 2016-05-19 | 1605251-04 | ND |
| 2016-05-26 | 1605392-01 | ND |
| 2016-05-26 | 1605393-01 | ND |
| 2016-05-26 | 1605394-01B | 3.00 ppt |
| 2016-05-26 | 1605391-01 | 3.00 ppt |
| 2016-05-26 | 1605394-01 | 3.00 ppt |
| 2016-05-26 | 1605390-01 | ND |
| 2016-05-26 | 1605391-01B | 3.00 ppt |
| 2016-05-26 | 1605389-01B | ND |
| 2016-05-26 | 1605389-01 | ND |
| 2016-05-26 | 1605392-01B | ND |
| 2016-05-26 | 1605390-01B | ND |
| 2016-05-26 | 1605393-01B | ND |
| 2016-06-02 | 1606075-01B | ND |
| 2016-06-02 | 1606076-01 | ND |
| 2016-06-02 | 1606078-01 | ND |
| 2016-06-02 | 1606079-01 | ND |
| 2016-06-02 | 1606077-01B | ND |
| 2016-06-02 | 1606078-01B | ND |
| 2016-06-02 | 1606080-01 | ND |
| 2016-06-02 | 1606079-01B | ND |
| 2016-06-02 | 1606080-01B | ND |
| 2016-06-02 | 1606076-01B | ND |
| 2016-06-02 | 1606075-01 | ND |
| 2016-06-02 | 1606077-01 | ND |
| 2016-06-09 | 1606177-01B | ND |
| 2016-06-09 | 1606179-01B | ND |
| 2016-06-09 | 1606178-01 | ND |
| 2016-06-09 | 1606180-01 | ND |
| 2016-06-09 | 1606177-01 | ND |
| 2016-06-09 | 1606178-01B | ND |
| 2016-06-09 | 1606179-01 | ND |
| 2016-06-09 | 1606180-01B | ND |
| 2016-06-16 | 1606252-02 | ND |
| 2016-06-16 | 1606252-03 | ND |
| 2016-06-16 | 1606252-02B | ND |
| 2016-06-16 | 1606252-04B | ND |
| 2016-06-16 | 1606252-01 | ND |
| 2016-06-16 | 1606252-01B | ND |
| 2016-06-16 | 1606252-03B | ND |
| 2016-06-16 | 1606252-04 | ND |
| 2016-06-23 | 1606351-01 | ND |
| 2016-06-23 | 1606349-01B | ND |
| 2016-06-23 | 1606352-01B | ND |
| 2016-06-23 | 1606349-01 | ND |
| 2016-06-23 | 1606350-01 | ND |
| 2016-06-23 | 1606350-01B | ND |
| 2016-06-23 | 1606352-01 | ND |
| 2016-06-23 | 1606351-01B | ND |
| 2016-06-30 | 1607022-01 | ND |
| 2016-06-30 | 1607020-01B | ND |
| 2016-06-30 | 1607019-01 | ND |
| 2016-06-30 | 1607021-01B | ND |
| 2016-06-30 | K1607569-002 | ND |
| 2016-06-30 | 1607021-01 | ND |
| 2016-06-30 | K1607569-003 | ND |
| 2016-06-30 | 1607019-01B | ND |
| 2016-06-30 | 1607022-01B | ND |
| 2016-06-30 | K1607569-001 | ND |
| 2016-06-30 | 1607020-01 | ND |
| 2016-06-30 | K1607569-004 | ND |
| 2016-07-07 | 1607087-01 | ND |
| 2016-07-07 | 1607090-01 | ND |
| 2016-07-07 | 1607088-01B | 3.00 ppt |
| 2016-07-07 | K1607618-004 | ND |
| 2016-07-07 | K1607621-003 | ND |
| 2016-07-07 | 1607092-01 | ND |
| 2016-07-07 | 1607092-01B | ND |
| 2016-07-07 | K1607621-004 | ND |
| 2016-07-07 | K1607624-003 | ND |
| 2016-07-07 | K1607624-006 | ND |
| 2016-07-07 | K1607618-001 | ND |
| 2016-07-07 | K1607618-003 | ND |
| 2016-07-07 | 1607091-01B | ND |
| 2016-07-07 | K1607624-004 | ND |
| 2016-07-07 | K1607624-007 | ND |
| 2016-07-07 | 1607086-01 | ND |
| 2016-07-07 | 1607087-01B | ND |
| 2016-07-07 | 1607089-01B | ND |
| 2016-07-07 | K1607624-001 | ND |
| 2016-07-07 | K1607624-005 | ND |
| 2016-07-07 | K1607621-001 | ND |
| 2016-07-07 | 1607091-01 | ND |
| 2016-07-07 | 1607090-01B | ND |
| 2016-07-07 | K1607624-002 | ND |
| 2016-07-07 | 1607088-01 | 3.00 ppt |
| 2016-07-07 | 1607089-01 | ND |
| 2016-07-07 | 1607086-01B | ND |
| 2016-07-07 | K1607618-002 | ND |
| 2016-07-14 | 1607215-01B | ND |
| 2016-07-14 | 1607214-01 | ND |
| 2016-07-14 | 1607212-01 | ND |
| 2016-07-14 | 1607212-01B | ND |
| 2016-07-14 | 1607214-01B | ND |
| 2016-07-14 | 1607213-01 | ND |
| 2016-07-14 | 1607213-01B | ND |
| 2016-07-14 | 1607215-01 | ND |
| 2016-07-21 | 1607277-01B | ND |
| 2016-07-21 | 1607277-01 | ND |
| 2016-07-21 | 1607278-01 | ND |
| 2016-07-21 | 1607279-01 | ND |
| 2016-07-21 | 1607276-01 | ND |
| 2016-07-21 | 1607276-01B | ND |
| 2016-07-21 | 1607278-01B | ND |
| 2016-07-21 | 1607279-01B | ND |
| 2016-07-28 | 1607344-01 | ND |
| 2016-07-28 | 1607343-01 | ND |
| 2016-07-28 | 1607345-01 | ND |
| 2016-07-28 | 1607343-01B | ND |
| 2016-07-28 | 1607344-01B | ND |
| 2016-07-28 | 1607345-01B | ND |
| 2016-07-28 | 1607346-01B | ND |
| 2016-07-28 | 1607346-01 | ND |
| 2016-08-04 | 1608075-03B | ND |
| 2016-08-04 | 1608075-01B | ND |
| 2016-08-04 | 1608075-02B | ND |
| 2016-08-04 | 1608075-04B | ND |
| 2016-08-18 | K1609928-001 | ND |
| 2016-08-18 | K1609928-003 | ND |
| 2016-08-18 | K1609928-002 | ND |
| 2016-08-18 | K1609928-004 | ND |
| 2016-09-01 | K1610468-003 | ND |
| 2016-09-01 | K1610468-002 | ND |
| 2016-09-01 | K1610468-001 | ND |
| 2016-09-07 | K1610695-001 | ND |
| 2016-09-15 | K1611036-004 | ND |
| 2016-09-15 | K1611036-001 | ND |
| 2016-09-15 | K1611036-002 | ND |
| 2016-09-15 | K1611036-003 | 32.0 ppt |
| 2016-09-29 | K1611858-004 | ND |
| 2016-09-29 | K1611858-002 | ND |
| 2016-09-29 | K1611858-001 | ND |
| 2016-09-29 | K1611858-003 | ND |
| 2016-10-13 | K1612679-001 | ND |
| 2016-10-13 | K1612679-003 | ND |
| 2016-10-13 | K1612679-002 | ND |
| 2016-10-13 | K1612679-004 | ND |
| 2016-10-27 | K1613253-002 | ND |
| 2016-10-27 | K1613253-004 | ND |
| 2016-10-27 | K1613253-001 | 5.50 ppt |
| 2016-10-27 | K1613253-003 | ND |
| 2016-11-10 | K1613978-002 | ND |
| 2016-11-10 | K1613978-001 | ND |
| 2016-11-10 | K1613978-003 | ND |
| 2016-11-10 | K1613978-004 | ND |
| 2016-11-16 | K1614222-002 | ND |
| 2016-11-16 | K1614222-004 | ND |
| 2016-11-16 | K1614222-003 | ND |
| 2016-11-16 | K1614222-001 | ND |
| 2016-12-01 | K1614633-001 | ND |
| 2016-12-01 | K1614633-002 | ND |
| 2016-12-01 | K1614633-003 | ND |
| 2016-12-01 | K1614633-004 | ND |
| 2016-12-15 | K1615281-001 | ND |
| 2016-12-15 | K1615281-004 | ND |
| 2016-12-15 | K1615281-003 | ND |
| 2016-12-15 | K1615281-002 | ND |
| 2016-12-28 | K1615500-004 | ND |
| 2016-12-28 | K1615500-003 | ND |
| 2016-12-28 | K1615500-001 | ND |
| 2016-12-28 | K1615500-002 | ND |
| 2017-01-12 | K1700420-002 | ND |
| 2017-01-12 | K1700420-003 | ND |
| 2017-01-12 | K1700420-001 | ND |
| 2017-01-12 | K1700420-004 | ND |
| 2017-01-26 | K1700898-001 | ND |
| 2017-01-26 | K1700898-004 | ND |
| 2017-01-26 | K1700898-002 | ND |
| 2017-01-26 | K1700898-003 | ND |
| 2017-02-09 | K1701387-001 | ND |
| 2017-02-09 | K1701387-003 | ND |
| 2017-02-09 | K1701387-004 | ND |
| 2017-02-09 | K1701387-002 | ND |
| 2017-03-09 | 8888464 | 1.000 ppt |
| 2017-03-09 | 8888465 | 1.000 ppt |
| 2017-05-10 | AB67112 | ND |
| 2017-05-10 | AB67111 | ND |
| 2017-05-10 | AB67121 | ND |
| 2018-02-15 | 9463597 | 1.000 ppt |
| 2018-02-15 | 9463595 | 0.600 ppt |
| 2018-02-15 | 9463598 | 1.000 ppt |
| 2018-02-15 | 9463596 | 0.700 ppt |
| 2018-03-22 | 9520792 | 0.600 ppt |
| 2018-03-22 | 9520794 | 1.000 ppt |
| 2018-03-22 | 9520791 | 0.800 ppt |
| 2018-03-22 | 9520793 | 2.00 ppt |
| 2018-04-19 | 9569131 | 1.20 ppt |
| 2018-04-19 | 9569129 | 0.600 ppt |
| 2018-04-19 | 9569128 | 0.960 ppt |
| 2018-04-19 | 9569130 | 1.40 ppt |
| 2018-05-29 | 9633893 | 1.60 ppt |
| 2018-05-29 | 9633892 | 0.870 ppt |
| 2018-05-29 | 9633891 | 0.890 ppt |
| 2018-05-29 | 9633894 | 1.30 ppt |
| 2018-06-21 | 9674402 | 1.20 ppt |
| 2018-06-21 | 9674399 | 0.860 ppt |
| 2018-06-21 | 9674400 | 0.720 ppt |
| 2018-06-21 | 9674401 | 1.50 ppt |
| 2018-07-19 | 9714347 | 1.30 ppt |
| 2018-07-19 | 9714348 | 1.10 ppt |
| 2018-07-19 | 9714346 | 0.720 ppt |
| 2018-07-19 | 9714345 | 0.620 ppt |
| 2018-08-23 | 9771168 | 1.10 ppt |
| 2018-08-23 | 9771169 | 0.810 ppt |
| 2018-08-23 | 9771170 | 1.90 ppt |
| 2018-08-23 | 9771171 | 1.50 ppt |
| 2018-09-19 | 9812473 | 1.80 ppt |
| 2018-09-19 | 9812472 | 0.640 ppt |
| 2018-09-19 | 9812471 | 1.000 ppt |
| 2018-09-19 | 9812474 | 2.60 ppt |
| 2018-10-25 | 9870341 | 1.50 ppt |
| 2018-10-25 | 9870342 | 1.10 ppt |
| 2018-10-25 | 9870339 | 0.830 ppt |
| 2018-10-25 | 9870340 | 0.560 ppt |
| 2018-11-20 | 9909746 | 0.690 ppt |
| 2018-11-20 | 9909747 | 0.690 ppt |
| 2018-11-20 | 9909749 | 0.960 ppt |
| 2018-11-20 | 9909748 | 1.10 ppt |
| 2018-12-20 | 9952846 | 0.730 ppt |
| 2018-12-20 | 9952845 | 0.670 ppt |
| 2018-12-20 | 9952847 | 1.40 ppt |
| 2018-12-20 | 9952848 | 1.20 ppt |
| 2019-01-17 | 9970056 | 0.520 ppt |
| 2019-01-17 | 9970058 | 1.10 ppt |
| 2019-01-17 | 9970057 | 1.40 ppt |
| 2019-01-17 | 9970055 | 0.630 ppt |
| 2019-02-27 | 9995194 | 1.20 ppt |
| 2019-02-27 | 9995195 | 1.10 ppt |
| 2019-02-27 | 9995193 | 1.30 ppt |
| 2019-02-27 | 9995192 | 0.640 ppt |
| 2019-03-21 | 1015519 | 1.10 ppt |
| 2019-03-21 | 1015516 | 0.650 ppt |
| 2019-03-21 | 1015517 | 0.490 ppt |
| 2019-03-21 | 1015518 | 1.20 ppt |
| 2019-04-18 | 1039205 | 1.60 ppt |
| 2019-04-18 | 1039206 | 1.20 ppt |
| 2019-04-18 | 1039204 | 0.600 ppt |
| 2019-04-18 | 1039203 | 0.840 ppt |
| 2019-05-23 | 1066179 | 1.40 ppt |
| 2019-05-23 | 1066178 | 0.630 ppt |
| 2019-05-23 | 1066180 | 1.20 ppt |
| 2019-05-23 | 1066177 | 0.820 ppt |
| 2019-06-14 | 1081922 | 0.780 ppt |
| 2019-06-14 | 1081921 | 0.820 ppt |
| 2019-06-14 | 1081923 | 1.40 ppt |
| 2019-06-14 | 1081924 | 1.30 ppt |
| 2019-07-25 | 1112056 | 0.780 ppt |
| 2019-07-25 | 1112055 | 1.30 ppt |
| 2019-07-25 | 1112058 | 1.40 ppt |
| 2019-07-25 | 1112057 | 1.50 ppt |
| 2019-08-29 | 1141761 | 1.30 ppt |
| 2019-08-29 | 1141764 | 1.10 ppt |
| 2019-08-29 | 1141763 | 1.50 ppt |
| 2019-08-29 | 1141762 | 0.670 ppt |
| 2019-09-26 | 1163105 | 1.20 ppt |
| 2019-09-26 | 1163104 | 1.10 ppt |
| 2019-09-26 | 1163107 | 1.20 ppt |
| 2019-09-26 | 1163106 | 1.50 ppt |
| 2019-10-22 | 1183118 | 1.30 ppt |
| 2019-10-22 | 1183119 | 1.000 ppt |
| 2019-10-22 | 1183120 | 0.630 ppt |
| 2019-10-22 | 1183121 | 1.000 ppt |
| 2019-10-22 | 1183122 | 1.10 ppt |
| 2019-11-21 | 1210356 | 0.910 ppt |
| 2019-11-21 | 1210357 | 0.820 ppt |
| 2019-11-21 | 1210358 | 1.40 ppt |
| 2019-11-21 | 1210359 | 1.000 ppt |
| 2019-11-21 | 1210360 | 1.20 ppt |
| 2019-12-04 | 1215863 | 0.730 ppt |
| 2019-12-04 | 1215864 | 0.980 ppt |
| 2019-12-04 | 1215865 | 1.20 ppt |
| 2019-12-19 | 1228461 | 0.890 ppt |
| 2019-12-19 | 1228462 | 0.880 ppt |
| 2019-12-19 | 1228463 | 1.20 ppt |
| 2019-12-19 | 1228464 | 1.20 ppt |
| 2019-12-19 | 1228465 | 1.20 ppt |