chemical stringlengths 4 49 | concentration_ppt stringlengths 1 16 | derived_fields listlengths 3 5 | id stringlengths 9 58 | regulation_type stringclasses 4
values | regulatory_citation stringlengths 11 67 ⌀ | source stringclasses 2
values | source_quote stringlengths 14 204 | state stringlengths 4 14 | state_chemical stringlengths 11 65 | stricter_than_federal stringclasses 3
values | url stringlengths 74 123 | verified_fields listlengths 1 3 ⌀ | effective_date timestamp[s]date 2020-03-17 00:00:00 2024-04-10 00:00:00 ⌀ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PFOS, PFOA, PFNA, PFHxS, and PFHpA combined | 70 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | alaska-pfos-pfoa-pfna-pfhxs-and-pfhpa-combined | guideline | Alaska DOT&PF Action Level | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 70 ppt Chemical(s) and type of regulation 5 PFAS substances combined: PFOS, PFOA, PFNA, PFHxS, and PFHpA (Guidance) | Alaska | Alaska — PFOS, PFOA, PFNA, PFHxS, and PFHpA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/alaska-pfos-pfoa-pfna-pfhxs-and-pfhpa-combined/ | [
"concentration_ppt"
] | null |
PFBS | 500 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | california-pfbs | notification level | California Health & Safety Code § 116378 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 500 ppt (stated (stated by the California Water Boards as as 0.0005 mg/L) Chemical(s) and type of regulation PFBS (Notification) | California | California — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/california-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 3 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | california-pfhxs | notification level | California Health & Safety Code § 116378 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 3 ppt (stated by the California Water Boards as 3 ng/L) Chemical(s) and type of regulation PFHxS (Notification) | California | California — PFHxS | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/california-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | california-pfoa | notification level | California Health & Safety Code § 116378 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt (stated by the California Water Boards as 4 ng/L) Chemical(s) and type of regulation PFOA (Notification) | California | California — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/california-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | california-pfos | notification level | California Health & Safety Code § 116378 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt (stated by the California Water Boards as 4 ng/L) Chemical(s) and type of regulation PFOS (Notification) | California | California — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/california-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 400,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | colorado-pfbs | guideline | Colorado Translation Level | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 400,000 ppt (stated in the regulation as 400,000 ng/L) Chemical(s) and type of regulation PFBS (Guidance) | Colorado | Colorado — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/colorado-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 700 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | colorado-pfhxs | guideline | Colorado Translation Level | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 700 ppt (stated in the regulation as 700 ng/L) Chemical(s) and type of regulation PFHxS (Guidance) | Colorado | Colorado — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/colorado-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS, PFOA, and PFNA combined | 70 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | colorado-pfos-pfoa-and-pfna-combined | guideline | Colorado Translation Level | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 70 ppt (stated in the regulation as 70 ng/L) Chemical(s) and type of regulation 3 PFAS substances combined: PFOS, PFOA, and PFNA (Guidance) | Colorado | Colorado — PFOS, PFOA, and PFNA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/colorado-pfos-pfoa-and-pfna-combined/ | [
"concentration_ppt"
] | null |
6:2 chloropolyfluoroether sulfonic acid | 2 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-6-2-chloropolyfluoroether-sulfonic-acid | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 2 ppt Chemical(s) and type of regulation 6:2 chloropolyfluoroether sulfonic acid (Notification) | Connecticut | Connecticut — 6:2 chloropolyfluoroether sulfonic acid | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-6-2-chloropolyfluoroether-sulfonic-acid/ | [
"chemical",
"concentration_ppt"
] | null |
8:2 chloropolyfluoroether sulfonic acid | 5 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-8-2-chloropolyfluoroether-sulfonic-acid | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 5 ppt Chemical(s) and type of regulation 8:2 chloropolyfluoroether sulfonic acid (Notification) | Connecticut | Connecticut — 8:2 chloropolyfluoroether sulfonic acid | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-8-2-chloropolyfluoroether-sulfonic-acid/ | [
"chemical",
"concentration_ppt"
] | null |
HFPO-DA | 19 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-hfpo-da | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 19 ppt Chemical(s) and type of regulation Gen X or HFPO-DA (Notification) | Connecticut | Connecticut — HFPO-DA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-hfpo-da/ | [
"chemical",
"concentration_ppt"
] | null |
PFBA | 1,800 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfba | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 1,800 ppt Chemical(s) and type of regulation PFBA (Notification) | Connecticut | Connecticut — PFBA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfba/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 760 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfbs | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 760 ppt Chemical(s) and type of regulation PFBS (Notification) | Connecticut | Connecticut — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxA | 240 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfhxa | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 240 ppt Chemical(s) and type of regulation PFHxA (Notification) | Connecticut | Connecticut — PFHxA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfhxa/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 49 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfhxs | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 49 ppt Chemical(s) and type of regulation PFHxS (Notification) | Connecticut | Connecticut — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFNA | 12 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfna | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 12 ppt Chemical(s) and type of regulation PFNA (Notification) | Connecticut | Connecticut — PFNA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfna/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 16 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfoa | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 16 ppt Chemical(s) and type of regulation PFOA (Notification) | Connecticut | Connecticut — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 10 | [
"state",
"state_chemical",
"stricter_than_federal"
] | connecticut-pfos | notification level | null | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation PFOS (Notification) | Connecticut | Connecticut — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/connecticut-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS, PFNA, and Gen X | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | delaware-pfhxs-pfna-and-gen-x | forthcoming MCL | Delaware PFAS Action Plan | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation PFHxS, PFNA, and Gen X (Forthcoming MCLs) | Delaware | Delaware — PFHxS, PFNA, and Gen X | no | https://referencesource.org/pfas-drinking-water-limits-by-state/delaware-pfhxs-pfna-and-gen-x/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS and PFOA | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | delaware-pfos-and-pfoa | forthcoming MCL | Delaware PFAS Action Plan | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt Chemical(s) and type of regulation PFOS and PFOA (Forthcoming MCLs) | Delaware | Delaware — PFOS and PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/delaware-pfos-and-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
HFPO-DA | 10 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-hfpo-da | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | HFPO-DA (commonly known as GenX Chemicals) | 10 ppt | 10 ppt | Federal | Federal — HFPO-DA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-hfpo-da/ | [
"chemical",
"concentration_ppt"
] | 2024-04-10T00:00:00 |
PFHxS | 10 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-pfhxs | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | PFHxS | 10 ppt | 10 ppt | Federal | Federal — PFHxS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-pfhxs/ | [
"chemical",
"concentration_ppt"
] | 2024-04-10T00:00:00 |
PFHxS, PFNA, HFPO-DA, and PFBS mixtures | 1 (Hazard Index) | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-pfhxs-pfna-hfpo-da-pfbs-mixtures | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS | 1 (unitless) Hazard Index | 1 (unitless) Hazard Index | Federal | Federal — PFHxS/PFNA/HFPO-DA/PFBS mixtures | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-pfhxs-pfna-hfpo-da-pfbs-mixtures/ | null | 2024-04-10T00:00:00 |
PFNA | 10 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-pfna | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | PFNA | 10 ppt | 10 ppt | Federal | Federal — PFNA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-pfna/ | [
"chemical",
"concentration_ppt"
] | 2024-04-10T00:00:00 |
PFOA | 4.0 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-pfoa | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | PFOA | Zero | 4.0 parts per trillion (ppt) (also expressed as ng/L) | Federal | Federal — PFOA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-pfoa/ | [
"chemical",
"concentration_ppt"
] | 2024-04-10T00:00:00 |
PFOS | 4.0 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | federal-pfos | MCL | PFAS National Primary Drinking Water Regulation, 89 FR 32532 | https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas | PFOS | Zero | 4.0 ppt | Federal | Federal — PFOS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/federal-pfos/ | [
"chemical",
"concentration_ppt"
] | 2024-04-10T00:00:00 |
6:2 FTOH | 5,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-6-2-ftoh | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | 6:2 FTOH (5,000 ppt) | Hawaii | Hawaii — 6:2 FTOH | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-6-2-ftoh/ | [
"chemical",
"concentration_ppt"
] | null |
6:2 FTS | 1,500 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-6-2-fts | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFPeA and 6:2 FTS (1,500 ppt) | Hawaii | Hawaii — 6:2 FTS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-6-2-fts/ | [
"chemical",
"concentration_ppt"
] | null |
6:2 FTTAoS | 1,900 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-6-2-fttaos | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFHxA and 6:2 FTTAoS (1,900 ppt) | Hawaii | Hawaii — 6:2 FTTAoS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-6-2-fttaos/ | [
"chemical",
"concentration_ppt"
] | null |
8:2 FTOH | 4,200 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-8-2-ftoh | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | 8:2 FTOH (4,200 ppt) | Hawaii | Hawaii — 8:2 FTOH | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-8-2-ftoh/ | [
"chemical",
"concentration_ppt"
] | null |
ADONA | 1,200 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-adona | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | ADONA (1,200 ppt) | Hawaii | Hawaii — ADONA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-adona/ | [
"chemical",
"concentration_ppt"
] | null |
HFPO-DA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-hfpo-da | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFNA, PFHxS, and HFPO-DA (10 ppt) | Hawaii | Hawaii — HFPO-DA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-hfpo-da/ | [
"chemical",
"concentration_ppt"
] | null |
PFBA | 15,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfba | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFBA (15,000 ppt) | Hawaii | Hawaii — PFBA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfba/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 2,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfbs | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFBS (2,000 ppt) | Hawaii | Hawaii — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFDA | 7.7 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfda | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Hawaii regulates 24 additional PFAS compounds, including the following: PFDA (7.7 ppt) | Hawaii | Hawaii — PFDA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfda/ | [
"chemical",
"concentration_ppt"
] | null |
PFDoDA | 26 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfdoda | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFDoDA and PFTrDA (26 ppt) | Hawaii | Hawaii — PFDoDA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfdoda/ | [
"chemical",
"concentration_ppt"
] | null |
PFDS | 38 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfds | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFHpS and PFDS (38 ppt) | Hawaii | Hawaii — PFDS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfds/ | [
"chemical",
"concentration_ppt"
] | null |
PFEtA | 18,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfeta | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFEtA (18,000 ppt) | Hawaii | Hawaii — PFEtA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfeta/ | [
"chemical",
"concentration_ppt"
] | null |
PFHpA | 77 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfhpa | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFHpA (77 ppt) | Hawaii | Hawaii — PFHpA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfhpa/ | [
"chemical",
"concentration_ppt"
] | null |
PFHpS | 38 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfhps | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFHpS and PFDS (38 ppt) | Hawaii | Hawaii — PFHpS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfhps/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxA | 1,900 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfhxa | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFHxA and 6:2 FTTAoS (1,900 ppt) | Hawaii | Hawaii — PFHxA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfhxa/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfhxs | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFNA, PFHxS, and HFPO-DA (10 ppt) | Hawaii | Hawaii — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFNA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfna | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFNA, PFHxS, and HFPO-DA (10 ppt) | Hawaii | Hawaii — PFNA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfna/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfoa | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt, etc. [1] (stated by the Hawaii Department of Health as 0.004 µg/L) Chemical(s) and type of regulation PFOS, PFOA, and 24 other PFAS compounds (Guidance) | Hawaii | Hawaii — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfos | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt, etc. [1] (stated by the Hawaii Department of Health as 0.004 µg/L) Chemical(s) and type of regulation PFOS, PFOA, and 24 other PFAS compounds (Guidance) | Hawaii | Hawaii — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFOSA | 46 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfosa | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFOSA (46 ppt) | Hawaii | Hawaii — PFOSA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfosa/ | [
"chemical",
"concentration_ppt"
] | null |
PFPeA | 1,500 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfpea | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFPeA and 6:2 FTS (1,500 ppt) | Hawaii | Hawaii — PFPeA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfpea/ | [
"chemical",
"concentration_ppt"
] | null |
PFPeS | 580 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfpes | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFPeS (580 ppt) | Hawaii | Hawaii — PFPeS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfpes/ | [
"chemical",
"concentration_ppt"
] | null |
PFPrA | 510 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfpra | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFPrA (510 ppt) | Hawaii | Hawaii — PFPrA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfpra/ | [
"chemical",
"concentration_ppt"
] | null |
PFTeDA | 260 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfteda | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFTeDA (260 ppt) | Hawaii | Hawaii — PFTeDA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfteda/ | [
"chemical",
"concentration_ppt"
] | null |
PFTrDA | 26 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pftrda | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFDoDA and PFTrDA (26 ppt) | Hawaii | Hawaii — PFTrDA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pftrda/ | [
"chemical",
"concentration_ppt"
] | null |
PFUnDA | 19 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | hawaii-pfunda | guideline | Hawaii Department of Health Environmental Action Levels (Table A) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | PFUnDA (19 ppt) | Hawaii | Hawaii — PFUnDA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/hawaii-pfunda/ | [
"chemical",
"concentration_ppt"
] | null |
HFPO-DA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-hfpo-da | guideline | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt (stated by the Illinois Environmental Pollution Control Agency as 10 ng/L) Chemical(s) and type of regulation HFPO-DA (Guidance) | Illinois | Illinois — HFPO-DA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-hfpo-da/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 2,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-pfbs | guideline | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 2,000 ppt (stated by the Illinois Environmental Pollution Control Agency as 2,000 ng/L) Chemical(s) and type of regulation PFBS (Guidance) | Illinois | Illinois — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-pfhxs | guideline | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt (stated by the Illinois Environmental Pollution Control Agency as 10 ng/L) Chemical(s) and type of regulation PFHxS (Guidance) | Illinois | Illinois — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFNA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-pfna | guideline | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt (stated by the Illinois Environmental Pollution Control Agency as 10 ng/L) Chemical(s) and type of regulation PFNA (Guidance) | Illinois | Illinois — PFNA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-pfna/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-pfoa | notification level | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt (stated by the California Water Boards as 4 ng/L) Chemical(s) and type of regulation PFOA (Notification) | Illinois | Illinois — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | illinois-pfos | guideline | 35 IAC Part 620 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt (stated by the Illinois Environmental Pollution Control Agency as 4 ng/L) Chemical(s) and type of regulation PFOS (Guidance) | Illinois | Illinois — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/illinois-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | 20 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | maine-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined | notification level | Maine Interim Drinking Water Standard (SP0064) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 20 ppt (stated in the Interim Drinking Water Standard as 20 ng/L) Chemical(s) and type of regulation 6 PFAS substances combined: PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA (Notification) | Maine | Maine — PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/maine-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined/ | [
"concentration_ppt"
] | null |
PFHxS | 140 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | maryland-pfhxs | guideline | Maryland Department of Health PFHxS Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 140 ppt Chemical(s) and type of regulation PFHxS (Guidance) | Maryland | Maryland — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/maryland-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | 20 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | massachusetts-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined | MCL | 310 CMR 22.00 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 20 ppt (stated in the regulation as 20 ng/L) Chemical(s) and type of regulation 6 PFAS substances combined: PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA (MCL) | Massachusetts | Massachusetts — PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/massachusetts-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined/ | [
"concentration_ppt",
"regulation_type"
] | null |
HFPO-DA | 370 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-hfpo-da | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 370 ppt Chemical(s) and type of regulation Gen X or HFPO-DA (MCL) | Michigan | Michigan — HFPO-DA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-hfpo-da/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFBS | 420 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfbs | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 420 ppt Chemical(s) and type of regulation PFBS (MCL) | Michigan | Michigan — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfbs/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFHxA | 400,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfhxa | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 400,000 ppt Chemical(s) and type of regulation PFHxA (MCL) | Michigan | Michigan — PFHxA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfhxa/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFHxS | 51 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfhxs | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 51 ppt Chemical(s) and type of regulation PFHxS (MCL) | Michigan | Michigan — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfhxs/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFNA | 6 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfna | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 6 ppt Chemical(s) and type of regulation PFNA (MCL) | Michigan | Michigan — PFNA | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfna/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOA | 8 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfoa | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 8 ppt Chemical(s) and type of regulation PFOA (MCL) | Michigan | Michigan — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfoa/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOS | 16 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | michigan-pfos | MCL | Michigan PFAS Drinking Water Rules | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 16 ppt Chemical(s) and type of regulation PFOS (MCL) | Michigan | Michigan — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/michigan-pfos/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFBA | 7,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfba | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 7,000 ppt Chemical(s) and type of regulation PFBA (Guidance) | Minnesota | Minnesota — PFBA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfba/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 100 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfbs | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 100 ppt Chemical(s) and type of regulation PFBS (Guidance) | Minnesota | Minnesota — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxA | 200 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfhxa | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 200 ppt Chemical(s) and type of regulation PFHxA (Guidance) | Minnesota | Minnesota — PFHxA | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfhxa/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 47 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfhxs | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 47 ppt Chemical(s) and type of regulation PFHxS (Guidance) | Minnesota | Minnesota — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 0.0079 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfoa | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 0.0079 ppt Chemical(s) and type of regulation PFOA (Guidance) | Minnesota | Minnesota — PFOA | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 2.3 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | minnesota-pfos | guideline | Minnesota Department of Health Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 2.3 ppt Chemical(s) and type of regulation PFOS (Guidance) | Minnesota | Minnesota — PFOS | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/minnesota-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 10,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | nevada-pfbs | guideline | Nevada Division of Environmental Protection Basic Comparison Levels | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10,000 ppt (stated by the Nevada Division of Environmental Protection as 10 µg/L) Chemical(s) and type of regulation PFBS (Guidance) | Nevada | Nevada — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/nevada-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA (cancer risk) | .00266 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | nevada-pfoa-cancer-risk | guideline | Nevada Division of Environmental Protection Basic Comparison Levels | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level .00266 ppt (stated by the Nevada Division of Environmental Protection as 0.00000266 µg/L) Chemical(s) and type of regulation PFOA (Guidance) | Nevada | Nevada — PFOA (cancer risk) | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/nevada-pfoa-cancer-risk/ | [
"concentration_ppt"
] | null |
PFOA (non-cancer risk) | 1.97 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | nevada-pfoa-non-cancer-risk | guideline | Nevada Division of Environmental Protection Basic Comparison Levels | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 1.97 ppt (stated by the Nevada Division of Environmental Protection as 0.00197 µg/L) Chemical(s) and type of regulation PFOA (Guidance) | Nevada | Nevada — PFOA (non-cancer risk) | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/nevada-pfoa-non-cancer-risk/ | [
"concentration_ppt"
] | null |
PFHxS | 18 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-hampshire-pfhxs | MCL | NH HB 1264 (2020) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 18 ppt Chemical(s) and type of regulation PFHxS (MCL) | New Hampshire | New Hampshire — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-hampshire-pfhxs/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFNA | 11 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-hampshire-pfna | MCL | NH HB 1264 (2020) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 11 ppt Chemical(s) and type of regulation PFNA (MCL) | New Hampshire | New Hampshire — PFNA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-hampshire-pfna/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOA | 12 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-hampshire-pfoa | MCL | NH HB 1264 (2020) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 12 ppt Chemical(s) and type of regulation PFOA (MCL) | New Hampshire | New Hampshire — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-hampshire-pfoa/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOS | 15 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-hampshire-pfos | MCL | NH HB 1264 (2020) | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 15 ppt Chemical(s) and type of regulation PFOS (MCL) | New Hampshire | New Hampshire — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-hampshire-pfos/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFNA | 13 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-jersey-pfna | MCL | N.J.A.C. 7:10 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 13 ppt Chemical(s) and type of regulation PFNA and PFOS (MCL) | New Jersey | New Jersey — PFNA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-jersey-pfna/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOA | 14 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-jersey-pfoa | MCL | N.J.A.C. 7:10 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 14 ppt Chemical(s) and type of regulation PFOA (MCL) | New Jersey | New Jersey — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-jersey-pfoa/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOS | 13 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-jersey-pfos | MCL | N.J.A.C. 7:10 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 13 ppt Chemical(s) and type of regulation PFNA and PFOS (MCL) | New Jersey | New Jersey — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-jersey-pfos/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOS, PFHxS, and PFOA combined | 70 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-mexico-pfos-pfhxs-and-pfoa-combined | guideline | 20.6.2 NMAC Toxic Pollutant Standard | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 70 ppt Chemical(s) and type of regulation PFOS, PFHxS and PFOA combined (Guidance) | New Mexico | New Mexico — PFOS, PFHxS, and PFOA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/new-mexico-pfos-pfhxs-and-pfoa-combined/ | [
"concentration_ppt"
] | null |
PFOA and PFOS | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | new-york-pfoa-and-pfos | MCL | 10 NYCRR Part 5, Subpart 5-1 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation PFOA and PFAS (MCL) | New York | New York — PFOA and PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/new-york-pfoa-and-pfos/ | [
"concentration_ppt",
"regulation_type"
] | null |
HFPO-DA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | north-carolina-hfpo-da | guideline | NC DHHS Health Advisory | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation GenX or HFPO-DA (Guidance) | North Carolina | North Carolina — HFPO-DA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/north-carolina-hfpo-da/ | [
"chemical",
"concentration_ppt"
] | null |
PFBS | 2,000 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | ohio-pfbs | guideline | Ohio PFAS Action Plan 2.0 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 2,000 ppt Chemical(s) and type of regulation PFBS (Guidance) | Ohio | Ohio — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/ohio-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS, PFNA, and Gen X | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | ohio-pfhxs-pfna-and-gen-x | guideline | Ohio PFAS Action Plan 2.0 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation PFHxS, PFNA, and Gen X (Guidance) | Ohio | Ohio — PFHxS, PFNA, and Gen X | no | https://referencesource.org/pfas-drinking-water-limits-by-state/ohio-pfhxs-pfna-and-gen-x/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS and PFOA | 4 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | ohio-pfos-and-pfoa | guideline | Ohio PFAS Action Plan 2.0 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 4 ppt Chemical(s) and type of regulation PFOS and PFOA (Guidance) | Ohio | Ohio — PFOS and PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/ohio-pfos-and-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 14 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | pennsylvania-pfoa | MCL | 25 Pa. Code Chapter 109 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 14 ppt Chemical(s) and type of regulation PFOA (MCL) | Pennsylvania | Pennsylvania — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/pennsylvania-pfoa/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOS | 18 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | pennsylvania-pfos | MCL | 25 Pa. Code Chapter 109 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 18 ppt Chemical(s) and type of regulation PFOS (MCL) | Pennsylvania | Pennsylvania — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/pennsylvania-pfos/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | 20 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | rhode-island-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined | notification level | RI General Laws Title 46, Chapter 32 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 20 ppt Chemical(s) and type of regulation 6 PFAS substances combined: PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA (Notification) | Rhode Island | Rhode Island — PFOA, PFOS, PFHxS, PFNA, PFHpA, and PFDA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/rhode-island-pfoa-pfos-pfhxs-pfna-pfhpa-and-pfda-combined/ | [
"concentration_ppt"
] | null |
PFOA, PFOS, PFHpA, PFHxS, and PFNA combined | 20 | [
"effective_date",
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | vermont-pfoa-pfos-pfhpa-pfhxs-and-pfna-combined | MCL | Vermont Water Supply Rule | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 20 ppt (stated in the regulation as 0.000002 mg/L) Chemical(s) and type of regulation 5 PFAS substances combined: PFOA, PFOS, PFHpA, PFHxS, and PFNA (MCL) | Vermont | Vermont — PFOA, PFOS, PFHpA, PFHxS, and PFNA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/vermont-pfoa-pfos-pfhpa-pfhxs-and-pfna-combined/ | [
"concentration_ppt",
"regulation_type"
] | 2020-03-17T00:00:00 |
PFBS | 345 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | washington-pfbs | notification level | WAC 246-290 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 345 ppt Chemical(s) and type of regulation PFBS (Notification) | Washington | Washington — PFBS | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/washington-pfbs/ | [
"chemical",
"concentration_ppt"
] | null |
PFHxS | 65 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | washington-pfhxs | notification level | WAC 246-290 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 65 ppt Chemical(s) and type of regulation PFHxS (Notification) | Washington | Washington — PFHxS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/washington-pfhxs/ | [
"chemical",
"concentration_ppt"
] | null |
PFNA | 9 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | washington-pfna | notification level | WAC 246-290 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 9 ppt Chemical(s) and type of regulation PFNA (Notification) | Washington | Washington — PFNA | yes | https://referencesource.org/pfas-drinking-water-limits-by-state/washington-pfna/ | [
"chemical",
"concentration_ppt"
] | null |
PFOA | 10 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | washington-pfoa | notification level | WAC 246-290 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 10 ppt Chemical(s) and type of regulation PFOA (Notification) | Washington | Washington — PFOA | no | https://referencesource.org/pfas-drinking-water-limits-by-state/washington-pfoa/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS | 15 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | washington-pfos | notification level | WAC 246-290 | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 15 ppt Chemical(s) and type of regulation PFOS (Notification) | Washington | Washington — PFOS | no | https://referencesource.org/pfas-drinking-water-limits-by-state/washington-pfos/ | [
"chemical",
"concentration_ppt"
] | null |
PFOS and PFOA combined | 70 | [
"regulatory_citation",
"state",
"state_chemical",
"stricter_than_federal"
] | wisconsin-pfos-and-pfoa-combined | MCL | NR 809, Wisconsin Administrative Code | https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html | Concentration level 70 ppt Chemical(s) and type of regulation PFOS and PFOA combined (MCL) | Wisconsin | Wisconsin — PFOS and PFOA combined | n/a | https://referencesource.org/pfas-drinking-water-limits-by-state/wisconsin-pfos-and-pfoa-combined/ | [
"chemical",
"concentration_ppt",
"regulation_type"
] | null |
PFAS drinking water concentration limits by US state — MCLs, notification levels, action levels, and health advisories for PFOA, PFOS, and other per- and polyfluoroalkyl substances
Canonical, always-current version: https://referencesource.org/pfas-drinking-water-limits-by-state/ Machine-readable: https://referencesource.org/pfas-drinking-water-limits-by-state/data.json — this mirror is a point-in-time copy.
- Last verified: 2026-08-14
- Stale after: 2027-02-10 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not)
- Records: 100
State-by-state comparison of legally enforceable and advisory concentration limits for PFAS compounds in drinking water. Each record is one state–chemical pair with the concentration limit (in parts per trillion), the regulation type (MCL, notification level, action level, health advisory, or guideline), the effective date, the statutory or regulatory citation, and whether the state limit is stricter than the federal EPA MCL. The federal MCLs are 4 ppt for PFOA and PFOS (affirmed May 2025); MCLs for PFHxS, PFNA, and HFPO-DA are under proposed rescission as of May 2026. State limits range from 0.00266 ppt (Nevada, PFOA) to 400,000 ppt (Michigan, PFHxA). Answers 'what is the legal PFAS limit in my state', 'is my state stricter than the federal standard', and 'which PFAS compounds does my state regulate'.
Provenance — what every record carries
Every record carries source (the URL the value was read from) and
source_quote (a verbatim quote from that page stating it). A value you
cannot check against its page is indistinguishable from an invented one;
these can all be checked. Each record is also individually addressable on
the canonical site at its url.
Licence position
unknown
Facts are not copyrightable; what this dataset takes from each source is a fact plus a short attributed quote linking back to the page that states it.
Sources
- https://www.bclplaw.com/en-US/events-insights-news/pfas-drinking-water-standards-state-by-state-regulations.html
- https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas
Fields
See any record in data/records.jsonl — field names are self-describing,
and the canonical page for each record renders them with labels:
https://referencesource.org/pfas-drinking-water-limits-by-state/
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