Perfluorononanoic acid (PFNA)
Stony Brook Water District
NOTE: Stony Brook Water District purchases water from Suffolk County Water Authority which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by Suffolk County Water Authority.
Perfluorononanoic acid, otherwise known as PFNA or C9, is a PFC similar in function and use to PFOA. These chemicals were used in the production of non-stick, stain repellent and chemically inert coatings. Click here to read more about perfluorinated chemicals.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 11 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 perfluorononanoic acid 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
NOTE: Stony Brook Water District purchases water from Suffolk County Water Authority which is required to test for perfluorononanoic acid (pfna). Sample information shown below was taken by Suffolk County Water Authority.
Date | Lab ID | Result |
---|---|---|
2013-01-25 | 201575543 | ND |
2013-01-25 | 201575568 | ND |
2013-01-29 | 201575567 | ND |
2013-01-29 | 201575556 | ND |
2013-01-30 | 201575369 | ND |
2013-02-06 | 201590257 | ND |
2013-02-06 | 201588603 | ND |
2013-02-07 | 201590328 | ND |
2013-02-08 | 201590287 | ND |
2013-02-08 | 201590298 | ND |
2013-02-13 | 201587911 | ND |
2013-02-13 | 201590281 | ND |
2013-02-15 | 201590304 | ND |
2013-02-15 | 201590311 | ND |
2013-02-19 | 201596428 | ND |
2013-02-19 | 201596437 | ND |
2013-02-19 | 201596425 | ND |
2013-02-19 | 201596443 | ND |
2013-02-19 | 201596439 | ND |
2013-02-19 | 201596431 | ND |
2013-02-19 | 201596441 | ND |
2013-02-19 | 201596427 | ND |
2013-02-19 | 201596433 | ND |
2013-02-20 | 201590274 | ND |
2013-02-21 | 201590275 | ND |
2013-02-22 | 201590322 | ND |
2013-02-26 | 201590251 | ND |
2013-02-26 | 201590329 | ND |
2013-02-27 | 201590258 | ND |
2013-02-27 | 201587865 | ND |
2013-03-01 | 201604141 | ND |
2013-03-05 | 201574756 | ND |
2013-03-06 | 201604801 | ND |
2013-03-06 | 201603020 | ND |
2013-03-06 | 201604826 | ND |
2013-03-07 | 201602989 | ND |
2013-03-08 | 201604844 | ND |
2013-03-08 | 201603115 | ND |
2013-03-08 | 201603260 | ND |
2013-03-13 | 201599973 | ND |
2013-03-14 | 201604820 | ND |
2013-03-14 | 201604795 | ND |
2013-03-15 | 201611820 | ND |
2013-03-21 | 201603297 | ND |
2013-03-21 | 201604808 | ND |
2013-03-21 | 201604807 | ND |
2013-03-22 | 201604819 | ND |
2013-03-22 | 201600706 | ND |
2013-03-27 | 201601398 | ND |
2013-03-27 | 201603039 | ND |
2013-03-27 | 201600738 | ND |
2013-03-27 | 201600567 | ND |
2013-03-28 | 201604843 | ND |
2013-04-01 | 201617770 | ND |
2013-04-04 | 201590268 | ND |
2013-04-05 | 201621683 | ND |
2013-04-05 | 201618338 | ND |
2013-04-05 | 201618349 | ND |
2013-04-05 | 201618392 | ND |
2013-04-05 | 201618391 | ND |
2013-04-10 | 201590305 | ND |
2013-04-11 | 201614161 | ND |
2013-04-11 | 201618380 | ND |
2013-04-11 | 201617293 | ND |
2013-04-12 | 201616754 | ND |
2013-04-12 | 201618367 | ND |
2013-04-17 | 201617352 | ND |
2013-04-17 | 201618421 | ND |
2013-04-17 | 201613344 | ND |
2013-04-18 | 201618415 | ND |
2013-04-19 | 201616844 | ND |
2013-04-19 | 201618356 | ND |
2013-04-23 | 201618398 | ND |
2013-04-23 | 201618368 | ND |
2013-04-23 | 201618379 | ND |
2013-04-24 | 201618439 | ND |
2013-04-24 | 201618422 | ND |
2013-04-24 | 201618428 | ND |
2013-04-25 | 201618355 | ND |
2013-04-26 | 201616725 | ND |
2013-04-29 | 201618404 | ND |
2013-04-30 | 201604832 | ND |
2013-04-30 | 201635798 | ND |
2013-05-01 | 201635608 | ND |
2013-05-01 | 201635590 | ND |
2013-05-01 | 201635597 | ND |
2013-05-02 | 201635547 | ND |
2013-05-03 | 201635591 | ND |
2013-05-03 | 201635620 | ND |
2013-05-09 | 201635553 | ND |
2013-05-15 | 201632363 | ND |
2013-05-15 | 201635609 | ND |
2013-05-15 | 201632151 | ND |
2013-05-16 | 201633470 | ND |
2013-05-16 | 201645650 | ND |
2013-05-17 | 201635571 | ND |
2013-05-23 | 201635554 | ND |
2013-05-23 | 201649578 | ND |
2013-05-24 | 201635572 | ND |
2013-05-24 | 201635583 | ND |
2013-05-31 | 201632241 | ND |
2013-05-31 | 201635565 | ND |
2013-05-31 | 201650435 | ND |
2013-06-05 | 201640344 | ND |
2013-06-06 | 201632230 | ND |
2013-06-07 | 201635912 | ND |
2013-06-07 | 201650441 | ND |
2013-06-12 | 201638169 | ND |
2013-06-12 | 201641479 | ND |
2013-06-13 | 201636408 | ND |
2013-06-13 | 201632127 | ND |
2013-06-14 | 201636320 | ND |
2013-06-17 | 201660195 | ND |
2013-06-20 | 201643649 | ND |
2013-06-21 | 201650429 | ND |
2013-06-21 | 201641158 | ND |
2013-06-26 | 201634004 | ND |
2013-06-26 | 201628781 | ND |
2013-06-28 | 201665871 | ND |
2013-07-03 | 201671852 | ND |
2013-07-05 | 201671520 | ND |
2013-07-05 | 201647639 | ND |
2013-07-10 | 201665873 | ND |
2013-07-10 | 201662719 | ND |
2013-07-10 | 201676940 | ND |
2013-07-11 | 201678041 | ND |
2013-07-17 | 201673214 | ND |
2013-07-17 | 201662665 | ND |
2013-07-18 | 201647712 | ND |
2013-07-18 | 201673221 | ND |
2013-07-19 | 201673203 | ND |
2013-07-19 | 201667198 | ND |
2013-07-23 | 201679029 | ND |
2013-07-24 | 201673202 | ND |
2013-07-24 | 201667421 | ND |
2013-07-25 | 201668305 | ND |
2013-07-31 | 201670999 | ND |
2013-07-31 | 201670997 | ND |
2013-08-02 | 201689435 | ND |
2013-08-06 | 201690935 | ND |
2013-08-07 | 201690927 | ND |
2013-08-07 | 201684279 | ND |
2013-08-09 | 201689679 | ND |
2013-08-09 | 201689166 | ND |
2013-08-13 | 201684998 | ND |
2013-08-14 | 201688423 | ND |
2013-08-16 | 201687899 | ND |
2013-08-20 | 201687526 | ND |
2013-08-21 | 201666718 | ND |
2013-08-23 | 201684303 | ND |
2013-08-23 | 201666665 | ND |
2013-08-27 | 201690936 | ND |
2013-08-27 | 201684958 | ND |
2013-08-29 | 201694179 | ND |
2013-08-30 | 201689176 | ND |
2013-08-30 | 201685004 | ND |
2013-09-04 | 201703953 | ND |
2013-09-04 | 201701816 | ND |
2013-09-04 | 201703979 | ND |
2013-09-05 | 201703063 | ND |
2013-09-05 | 201701773 | ND |
2013-09-06 | 201702994 | ND |
2013-09-16 | 201701923 | ND |
2013-09-17 | 201698426 | ND |
2013-09-18 | 201703972 | ND |
2013-09-18 | 201699601 | ND |
2013-09-19 | 201703960 | ND |
2013-09-19 | 201702441 | ND |
2013-09-19 | 201703959 | ND |
2013-09-26 | 201703996 | ND |
2013-09-27 | 201701834 | ND |
2013-09-27 | 201700237 | ND |
2013-09-27 | 201699637 | ND |
2013-09-27 | 201703985 | ND |
2013-10-07 | 201718876 | ND |
2013-10-08 | 201720912 | ND |
2013-10-09 | 201717013 | ND |
2013-10-09 | 201720867 | ND |
2013-10-09 | 201715539 | ND |
2013-10-11 | 201719442 | ND |
2013-10-11 | 201715602 | ND |
2013-10-17 | 201720807 | ND |
2013-10-17 | 201720844 | ND |
2013-10-18 | 201720266 | ND |
2013-10-18 | 201720814 | ND |
2013-11-04 | 201735663 | ND |
2013-11-05 | 201719584 | ND |
2013-11-05 | 201720813 | ND |
2013-11-05 | 201715203 | ND |
2013-11-06 | 201734529 | ND |
2013-11-06 | 201730201 | ND |
2013-11-06 | 201737974 | ND |
2013-11-06 | 201737963 | ND |
2013-11-06 | 201737986 | ND |
2013-11-07 | 201737944 | ND |
2013-11-07 | 201727623 | ND |
2013-11-07 | 201733920 | ND |
2013-11-08 | 201720797 | ND |
2013-11-08 | 201737921 | ND |
2013-11-08 | 201730307 | ND |
2013-11-13 | 201730397 | ND |
2013-11-13 | 201730207 | ND |
2013-11-14 | 201737932 | ND |
2013-11-14 | 201733921 | ND |
2013-11-18 | 201733909 | ND |
2013-11-19 | 201737951 | ND |
2013-11-20 | 201712858 | ND |
2013-11-20 | 201720850 | ND |
2013-11-20 | 201720826 | ND |
2013-11-20 | 201720838 | ND |
2013-11-20 | 201720837 | ND |
2013-11-20 | 201716920 | ND |
2013-11-22 | 201737933 | ND |
2013-11-26 | 201733910 | ND |
2013-11-27 | 201719471 | ND |
2013-12-02 | 201752192 | ND |
2013-12-04 | 201738638 | ND |
2013-12-04 | 201734659 | ND |
2013-12-05 | 201730185 | ND |
2013-12-06 | 201730296 | ND |
2013-12-09 | 201752257 | ND |
2013-12-11 | 201740135 | ND |
2013-12-12 | 201752188 | ND |
2013-12-12 | 201737962 | ND |
2013-12-12 | 201734516 | ND |
2013-12-13 | 201749179 | ND |
2013-12-13 | 201734395 | ND |
2013-12-18 | 201736513 | ND |
2013-12-19 | 201742791 | ND |
2013-12-20 | 201760664 | ND |
2013-12-20 | 201762654 | ND |
2013-12-20 | 201745711 | ND |
2013-12-20 | 201760631 | ND |
2013-12-20 | 201760662 | ND |
2013-12-20 | 201743231 | ND |
2013-12-26 | 201734010 | ND |
2013-12-26 | 201747678 | ND |
2013-12-30 | 201764726 | ND |
2013-12-30 | 201760666 | ND |
2013-12-30 | 201760660 | ND |
2014-01-02 | 201766626 | ND |
2014-01-06 | 201761349 | ND |
2014-01-08 | 201766202 | ND |
2014-01-08 | 201766049 | ND |
2014-01-08 | 201766613 | ND |
2014-01-16 | 201766624 | ND |
2014-01-17 | 201766595 | ND |
2014-01-17 | 201766589 | ND |
2014-01-17 | 201766601 | ND |
2014-01-17 | 201766607 | ND |
2014-01-23 | 201764359 | ND |
2014-01-23 | 201763419 | ND |
2014-01-24 | 201765722 | ND |
2014-01-28 | 201766625 | ND |
2014-01-29 | 201763320 | ND |
2014-01-29 | 201763984 | ND |
2014-01-31 | 201774107 | ND |
2014-02-05 | 201774800 | ND |
2014-02-05 | 201774770 | ND |
2014-02-06 | 201774758 | ND |
2014-02-07 | 201774782 | ND |
2014-02-07 | 201774752 | ND |
2014-02-14 | 201774740 | ND |
2014-02-14 | 201774734 | ND |
2014-02-17 | 201776380 | ND |
2014-02-19 | 201774746 | ND |
2014-02-19 | 201776387 | ND |
2014-02-20 | 201780864 | ND |
2014-02-20 | 201774806 | ND |
2014-02-21 | 201774776 | ND |
2014-02-21 | 201774788 | ND |
2014-02-21 | 201774812 | ND |
2014-02-26 | 201790532 | ND |
2014-03-05 | 201790653 | ND |
2014-03-05 | 201790593 | ND |
2014-03-06 | 201790647 | ND |
2014-03-06 | 201790641 | ND |
2014-03-07 | 201790581 | ND |
2014-03-07 | 201790587 | ND |
2014-03-07 | 201790683 | ND |
2014-03-12 | 201790599 | ND |
2014-03-14 | 201790677 | ND |
2014-03-18 | 201790684 | ND |
2014-03-20 | 201790665 | ND |
2014-03-20 | 201790671 | ND |
2014-03-21 | 201790635 | ND |
2014-03-21 | 201790617 | ND |
2014-03-21 | 201790659 | ND |
2014-03-24 | 201790611 | ND |
2014-03-26 | 201790539 | ND |
2014-03-26 | 201790551 | ND |
2014-03-27 | 201805764 | ND |
2014-03-27 | 201790575 | ND |
2014-03-27 | 201790563 | ND |
2014-03-27 | 201790545 | ND |
2014-04-01 | 201804917 | ND |
2014-04-03 | 201804975 | ND |
2014-04-04 | 201804453 | ND |
2014-04-08 | 201800579 | ND |
2014-04-09 | 201804961 | ND |
2014-04-10 | 201804955 | ND |
2014-04-10 | 201804923 | ND |
2014-04-15 | 201803833 | ND |
2014-04-15 | 201804933 | ND |
2014-04-15 | 201804939 | ND |
2014-04-15 | 201800391 | ND |
2014-04-17 | 201790605 | ND |
2014-04-22 | 201804945 | ND |
2014-04-22 | 201800429 | ND |
2014-04-22 | 201800435 | ND |
2014-04-23 | 201800717 | ND |
2014-04-24 | 201800748 | ND |
2014-04-24 | 201800544 | ND |
2014-04-25 | 201805008 | ND |
2014-04-25 | 201800510 | ND |
2014-04-29 | 201803955 | ND |
2014-04-29 | 201800563 | ND |
2014-04-30 | 201809067 | ND |
2014-04-30 | 201808884 | ND |
2014-05-01 | 201823042 | ND |
2014-05-01 | 201821643 | ND |
2014-05-01 | 201817543 | ND |
2014-05-01 | 201822188 | ND |
2014-05-02 | 201821571 | ND |
2014-05-02 | 201822052 | ND |
2014-05-07 | 201822253 | ND |
2014-05-08 | 201815921 | ND |
2014-05-08 | 201813171 | ND |
2014-05-12 | 201813170 | ND |
2014-05-12 | 201813169 | ND |
2014-05-14 | 201823048 | ND |
2014-05-14 | 201822143 | ND |
2014-05-14 | 201818879 | ND |
2014-05-15 | 201822602 | ND |
2014-05-16 | 201818011 | ND |
2014-05-16 | 201823014 | ND |
2014-05-19 | 201821100 | ND |
2014-05-19 | 201821099 | ND |
2014-05-19 | 201834232 | ND |
2014-05-20 | 201804981 | ND |
2014-05-20 | 201830439 | ND |
2014-05-21 | 201835265 | ND |
2014-05-23 | 201836545 | ND |
2014-05-28 | 201823006 | ND |
2014-05-28 | 201837373 | ND |
2014-05-29 | 201837371 | ND |
2014-05-29 | 201837372 | ND |
2014-05-29 | 201839154 | ND |
2014-05-29 | 201837370 | ND |
2014-06-04 | 201838962 | ND |
2014-06-04 | 201838935 | ND |
2014-06-05 | 201837369 | ND |
2014-06-11 | 201839634 | ND |
2014-06-11 | 201790533 | ND |
2014-06-11 | 201790569 | ND |
2014-06-17 | 201847014 | ND |
2014-06-24 | 201848118 | ND |
2014-07-02 | 201854657 | ND |
2014-07-02 | 201853415 | ND |
2014-07-02 | 201854662 | ND |
2014-07-03 | 201851206 | ND |
2014-07-03 | 201859129 | ND |
2014-07-10 | 201862790 | ND |
2014-07-10 | 201854628 | ND |
2014-07-11 | 201853502 | ND |
2014-07-11 | 201800503 | ND |
2014-07-18 | 201854567 | ND |
2014-07-18 | 201852887 | ND |
2014-07-24 | 201854433 | ND |
2014-07-24 | 201854475 | ND |
2014-07-24 | 201854481 | ND |
2014-07-24 | 201854487 | ND |
2014-07-30 | 201837980 | ND |
2014-07-30 | 201850158 | ND |
2014-08-01 | 201862584 | ND |
2014-08-01 | 201862632 | ND |
2014-08-01 | 201862578 | ND |
2014-08-05 | 201861530 | ND |
2014-08-06 | 201862614 | ND |
2014-08-06 | 201862572 | ND |
2014-08-08 | 201854508 | ND |
2014-08-08 | 201849108 | ND |
2014-08-08 | 201862644 | ND |
2014-08-13 | 201862566 | ND |
2014-08-13 | 201862560 | ND |
2014-08-15 | 201862608 | ND |
2014-08-15 | 201862638 | ND |
2014-08-19 | 201869060 | ND |
2014-08-20 | 201862626 | ND |
2014-08-20 | 201862620 | ND |
2014-08-22 | 201840988 | ND |
2014-08-22 | 201862602 | ND |
2014-09-03 | 201883924 | ND |
2014-09-05 | 201862596 | ND |
2014-09-08 | 201888553 | ND |
2014-09-10 | 201888517 | ND |
2014-09-10 | 201888511 | ND |
2014-09-10 | 201720879 | ND |
2014-09-12 | 201888811 | ND |
2014-09-12 | 201888541 | ND |
2014-09-12 | 201888529 | ND |
2014-09-15 | 201888505 | ND |
2014-09-16 | 201898450 | ND |
2014-09-16 | 201896970 | ND |
2014-09-17 | 201884502 | ND |
2014-09-17 | 201888864 | ND |
2014-09-17 | 201888475 | ND |
2014-09-17 | 201888457 | ND |
2014-09-17 | 201888451 | ND |
2014-09-23 | 201888573 | ND |
2014-09-24 | 201888567 | ND |
2014-09-24 | 201888022 | ND |
2014-09-24 | 201900233 | ND |
2014-09-26 | 201896976 | ND |
2014-09-26 | 201885197 | ND |
2014-09-26 | 201898462 | ND |
2014-09-26 | 201898456 | ND |
2014-10-01 | 201888445 | ND |
2014-10-01 | 201888481 | ND |
2014-10-01 | 201907980 | ND |
2014-10-01 | 201903093 | ND |
2014-10-01 | 201888463 | ND |
2014-10-01 | 201888439 | ND |
2014-10-03 | 201896313 | ND |
2014-10-06 | 201848217 | ND |
2014-10-07 | 201910182 | ND |
2014-10-07 | 201910183 | ND |
2014-10-09 | 201901830 | ND |
2014-10-09 | 201907986 | ND |
2014-10-10 | 201888783 | ND |
2014-10-10 | 201903192 | ND |
2014-10-10 | 201904986 | ND |
2014-10-10 | 201908002 | ND |
2014-10-15 | 201900124 | ND |
2014-10-15 | 201908052 | ND |
2014-10-17 | 201906923 | ND |
2014-10-17 | 201905129 | ND |
2014-10-20 | 201908018 | ND |
2014-10-20 | 201905396 | ND |
2014-10-24 | 201907612 | ND |
2014-10-24 | 201908024 | ND |
2014-10-27 | 201920419 | ND |
2014-10-28 | 201918719 | ND |
2014-10-29 | 201908032 | ND |
2014-10-29 | 201908038 | ND |
2014-10-29 | 201908044 | ND |
2014-10-30 | 201920788 | ND |
2014-10-30 | 201919213 | ND |
2014-10-31 | 201907996 | ND |
2014-10-31 | 201904371 | ND |
2014-10-31 | 201904945 | ND |
2014-10-31 | 201924489 | ND |
2014-11-04 | 201920742 | ND |
2014-11-04 | 201920736 | ND |
2014-11-05 | 201920782 | ND |
2014-11-05 | 201920776 | ND |
2014-11-05 | 201917386 | ND |
2014-11-07 | 201920730 | ND |
2014-11-07 | 201901786 | ND |
2014-11-10 | 201926831 | ND |
2014-11-10 | 201914153 | ND |
2014-11-12 | 201920748 | ND |
2014-11-14 | 201920019 | ND |
2014-11-14 | 201920012 | ND |
2014-11-18 | 201922192 | ND |
2014-11-20 | 201920756 | ND |
2014-11-20 | 201920768 | ND |
2014-11-20 | 201920762 | ND |
2014-11-21 | 201933817 | ND |
2014-11-21 | 201920722 | ND |
2014-12-01 | 201938577 | ND |
2014-12-11 | 201939194 | ND |
2014-12-29 | 201949238 | ND |
2015-03-12 | 201975521 | ND |
2015-03-12 | 201975539 | ND |
2015-06-09 | 202029373 | ND |
2015-06-09 | 201995729 | ND |
2015-06-09 | 202029502 | ND |
2015-06-09 | 202029512 | ND |
2015-06-09 | 202029690 | ND |
2015-06-09 | 202029495 | ND |
2015-07-27 | 202051941 | ND |
2015-07-27 | 202051935 | ND |
2015-10-09 | 202091054 | ND |
2016-06-01 | ND* | |
2017-06-01 | ND* |
* Sample result is taken from the system's CCR report.