{"asset": "drinking-water-contaminant-limits", "asset_type": "threshold", "body": "The legally enforceable maximum concentration of a contaminant in public drinking water, stated separately by each regulator that sets one. Each record is one contaminant under one regulator, carrying the limit, its unit, and the regulator's own name for the limit (MCL in the US, 'parametric value' in the EU and UK). Covers the US EPA National Primary Drinking Water Regulations, EU Directive 2020/2184, and the UK Water Supply (Water Quality) Regulations 2016. Answers 'what is the EPA limit for arsenic in drinking water', 'EU vs US drinking water lead limit', 'is the UK nitrate limit the same as the EU one', and 'what is the PFOA maximum contaminant level'. The same contaminant is frequently held to different numbers by different regulators \u2014 lead, arsenic and PFAS all differ \u2014 and an assistant that states one regulator's figure as the universal one is wrong for most of the world.\n", "description": "The legally enforceable maximum concentration of a contaminant in public drinking water, stated separately by each regulator that sets one. Each record is one contaminant under one regulator, carrying the limit, its unit, and the regulator's own name for the limit (MCL in the US, 'parametric value' in the EU and UK). Covers the US EPA National Primary Drinking Water Regulations, EU Directive 2020/2184, and the UK Water Supply (Water Quality) Regulations 2016. Answers 'what is the EPA limit for arsenic in drinking water', 'EU vs US drinking water lead limit', 'is the UK nitrate limit the same as the EU one', and 'what is the PFOA maximum contaminant level'. The same contaminant is frequently held to different numbers by different regulators \u2014 lead, arsenic and PFAS all differ \u2014 and an assistant that states one regulator's figure as the universal one is wrong for most of the world.", "file": "index.md", "generated": true, "harvested": "2026-08-06", "key_field": "contaminant", "licence": "Values are regulatory limits published by government bodies. US EPA pages are US Government works and not copyrightable. EUR-Lex content is reusable under Commission Decision 2011/833/EU. legislation.gov.uk carries the Open Government Licence. Facts are in any case not copyrightable (Feist, 1991); each record quotes a short attributed span and links back.", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184", "https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made", "https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations", "https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "Drinking water contaminant limits by regulator", "type": "dataset", "verified": false} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,2-dichloroethane\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 3,0\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> 1,2-dichloroethane | 3,0 | \u03bcg/l\n\nSource: \n", "contaminant": "1,2-dichloroethane", "file": "european-union-directive-2020-2184-1-2-dichloroethane.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-1-2-dichloroethane", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "3,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "1,2-dichloroethane | 3,0 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "1,2-dichloroethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Acrylamide\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Acrylamide | 0,10 | \u03bcg/l\n\nSource: \n", "contaminant": "Acrylamide", "file": "european-union-directive-2020-2184-acrylamide.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-acrylamide", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Acrylamide | 0,10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Acrylamide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Aluminium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 200\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Indicator parameter\n\n> Aluminium | 200 | \u03bcg/l\n\nSource: \n", "contaminant": "Aluminium", "file": "european-union-directive-2020-2184-aluminium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-aluminium", "limit_name": "Indicator parameter", "limit_unit": "\u03bcg/l", "limit_value": "200", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Aluminium | 200 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Aluminium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Ammonium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,50\n\n**Unit:** mg/l\n\n**Limit type:** Indicator parameter\n\n> Ammonium | 0,50 | mg/l\n\nSource: \n", "contaminant": "Ammonium", "file": "european-union-directive-2020-2184-ammonium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-ammonium", "limit_name": "Indicator parameter", "limit_unit": "mg/l", "limit_value": "0,50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Ammonium | 0,50 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Ammonium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Antimony\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Antimony | 10 | \u03bcg/l\n\nSource: \n", "contaminant": "Antimony", "file": "european-union-directive-2020-2184-antimony.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-antimony", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Antimony | 10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Antimony \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Arsenic\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Arsenic | 10 | \u03bcg/l\n\nSource: \n", "contaminant": "Arsenic", "file": "european-union-directive-2020-2184-arsenic.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-arsenic", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Arsenic | 10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Arsenic \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzene\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 1,0\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Benzene | 1,0 | \u03bcg/l\n\nSource: \n", "contaminant": "Benzene", "file": "european-union-directive-2020-2184-benzene.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-benzene", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "1,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Benzene | 1,0 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Benzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzo(a)pyrene\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,010\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Benzo(a)pyrene | 0,010 | \u03bcg/l\n\nSource: \n", "contaminant": "Benzo(a)pyrene", "file": "european-union-directive-2020-2184-benzo-a-pyrene.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-benzo-a-pyrene", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,010", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Benzo(a)pyrene | 0,010 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Benzo(a)pyrene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Bisphenol A\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 2,5\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Bisphenol A | 2,5 | \u03bcg/l\n\nSource: \n", "contaminant": "Bisphenol A", "file": "european-union-directive-2020-2184-bisphenol-a.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-bisphenol-a", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "2,5", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Bisphenol A | 2,5 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Bisphenol A \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Boron\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 1,5\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Boron | 1,5 | mg/l\n\nSource: \n", "contaminant": "Boron", "file": "european-union-directive-2020-2184-boron.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-boron", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "1,5", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Boron | 1,5 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Boron \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Bromate\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Bromate | 10 | \u03bcg/l\n\nSource: \n", "contaminant": "Bromate", "file": "european-union-directive-2020-2184-bromate.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-bromate", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Bromate | 10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Bromate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cadmium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 5,0\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Cadmium | 5,0 | \u03bcg/l\n\nSource: \n", "contaminant": "Cadmium", "file": "european-union-directive-2020-2184-cadmium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-cadmium", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "5,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Cadmium | 5,0 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Cadmium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorate\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,25\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Chlorate | 0,25 | mg/l\n\nSource: \n", "contaminant": "Chlorate", "file": "european-union-directive-2020-2184-chlorate.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-chlorate", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "0,25", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Chlorate | 0,25 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Chlorate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chloride\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 250\n\n**Unit:** mg/l\n\n**Limit type:** Indicator parameter\n\n> Chloride | 250 | mg/l\n\nSource: \n", "contaminant": "Chloride", "file": "european-union-directive-2020-2184-chloride.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-chloride", "limit_name": "Indicator parameter", "limit_unit": "mg/l", "limit_value": "250", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Chloride | 250 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Chloride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorite\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,25\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Chlorite | 0,25 | mg/l\n\nSource: \n", "contaminant": "Chlorite", "file": "european-union-directive-2020-2184-chlorite.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-chlorite", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "0,25", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Chlorite | 0,25 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Chlorite \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chromium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 25\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Chromium | 25 | \u03bcg/l\n\nSource: \n", "contaminant": "Chromium", "file": "european-union-directive-2020-2184-chromium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-chromium", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "25", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Chromium | 25 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Chromium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Clostridium perfringens including spores\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0\n\n**Unit:** number/100 ml\n\n**Limit type:** Indicator parameter\n\n> Clostridium perfringens including spores | 0 | number/100 ml\n\nSource: \n", "contaminant": "Clostridium perfringens including spores", "file": "european-union-directive-2020-2184-clostridium-perfringens-including-spores.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-clostridium-perfringens-including-spores", "limit_name": "Indicator parameter", "limit_unit": "number/100 ml", "limit_value": "0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Clostridium perfringens including spores | 0 | number/100 ml", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Clostridium perfringens including spores \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Coliform bacteria\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0\n\n**Unit:** number/100 ml\n\n**Limit type:** Indicator parameter\n\n> Coliform bacteria | 0 | number/100 ml\n\nSource: \n", "contaminant": "Coliform bacteria", "file": "european-union-directive-2020-2184-coliform-bacteria.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-coliform-bacteria", "limit_name": "Indicator parameter", "limit_unit": "number/100 ml", "limit_value": "0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Coliform bacteria | 0 | number/100 ml", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Coliform bacteria \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Conductivity\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 2 500\n\n**Unit:** \u03bcS cm -1 at 20 \u00b0C\n\n**Limit type:** Indicator parameter\n\n> Conductivity | 2 500 | \u03bcS cm -1 at 20 \u00b0C\n\nSource: \n", "contaminant": "Conductivity", "file": "european-union-directive-2020-2184-conductivity.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-conductivity", "limit_name": "Indicator parameter", "limit_unit": "\u03bcS cm -1 at 20 \u00b0C", "limit_value": "2 500", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Conductivity | 2 500 | \u03bcS cm -1 at 20 \u00b0C", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Conductivity \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Copper\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 2,0\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Copper | 2,0 | mg/l\n\nSource: \n", "contaminant": "Copper", "file": "european-union-directive-2020-2184-copper.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-copper", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "2,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Copper | 2,0 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Copper \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cyanide\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 50\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Cyanide | 50 | \u03bcg/l\n\nSource: \n", "contaminant": "Cyanide", "file": "european-union-directive-2020-2184-cyanide.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-cyanide", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Cyanide | 50 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Cyanide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Epichlorohydrin\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Epichlorohydrin | 0,10 | \u03bcg/l\n\nSource: \n", "contaminant": "Epichlorohydrin", "file": "european-union-directive-2020-2184-epichlorohydrin.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-epichlorohydrin", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Epichlorohydrin | 0,10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Epichlorohydrin \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Escherichia coli (E. coli)\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0\n\n**Unit:** number/100 ml\n\n**Limit type:** Parametric value\n\n> Escherichia coli (E. coli) | 0 | number/100 ml\n\nSource: \n", "contaminant": "Escherichia coli (E. coli)", "file": "european-union-directive-2020-2184-escherichia-coli-e-coli.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-escherichia-coli-e-coli", "limit_name": "Parametric value", "limit_unit": "number/100 ml", "limit_value": "0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Escherichia coli (E. coli) | 0 | number/100 ml", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Escherichia coli (E. coli) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Fluoride\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 1,5\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Fluoride | 1,5 | mg/l\n\nSource: \n", "contaminant": "Fluoride", "file": "european-union-directive-2020-2184-fluoride.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-fluoride", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "1,5", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Fluoride | 1,5 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Fluoride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Haloacetic acids (HAAs)\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 60\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Haloacetic acids (HAAs) | 60 | \u03bcg/l\n\nSource: \n", "contaminant": "Haloacetic acids (HAAs)", "file": "european-union-directive-2020-2184-haloacetic-acids-haas.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-haloacetic-acids-haas", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "60", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Haloacetic acids (HAAs) | 60 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Haloacetic acids (HAAs) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Hydrogen ion concentration\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** \u2265 6,5 and \u2264 9,5\n\n**Unit:** pH units\n\n**Limit type:** Indicator parameter\n\n> Hydrogen ion concentration | \u2265 6,5 and \u2264 9,5 | pH units\n\nSource: \n", "contaminant": "Hydrogen ion concentration", "file": "european-union-directive-2020-2184-hydrogen-ion-concentration.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-hydrogen-ion-concentration", "limit_name": "Indicator parameter", "limit_unit": "pH units", "limit_value": "\u2265 6,5 and \u2264 9,5", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Hydrogen ion concentration | \u2265 6,5 and \u2264 9,5 | pH units", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Hydrogen ion concentration \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Intestinal enterococci\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0\n\n**Unit:** number/100 ml\n\n**Limit type:** Parametric value\n\n> Intestinal enterococci | 0 | number/100 ml\n\nSource: \n", "contaminant": "Intestinal enterococci", "file": "european-union-directive-2020-2184-intestinal-enterococci.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-intestinal-enterococci", "limit_name": "Parametric value", "limit_unit": "number/100 ml", "limit_value": "0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Intestinal enterococci | 0 | number/100 ml", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Intestinal enterococci \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Iron\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 200\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Indicator parameter\n\n> Iron | 200 | \u03bcg/l\n\nSource: \n", "contaminant": "Iron", "file": "european-union-directive-2020-2184-iron.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-iron", "limit_name": "Indicator parameter", "limit_unit": "\u03bcg/l", "limit_value": "200", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Iron | 200 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Iron \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Lead\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 5\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Lead | 5 | \u03bcg/l\n\nSource: \n", "contaminant": "Lead", "file": "european-union-directive-2020-2184-lead.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-lead", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "5", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Lead | 5 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Lead \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Legionella\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** < 1 000\n\n**Unit:** CFU/l\n\n**Limit type:** Parametric value\n\n> Legionella | < 1 000 | CFU/l\n\nSource: \n", "contaminant": "Legionella", "file": "european-union-directive-2020-2184-legionella.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-legionella", "limit_name": "Parametric value", "limit_unit": "CFU/l", "limit_value": "< 1 000", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Legionella | < 1 000 | CFU/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Legionella \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Manganese\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 50\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Indicator parameter\n\n> Manganese | 50 | \u03bcg/l\n\nSource: \n", "contaminant": "Manganese", "file": "european-union-directive-2020-2184-manganese.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-manganese", "limit_name": "Indicator parameter", "limit_unit": "\u03bcg/l", "limit_value": "50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Manganese | 50 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Manganese \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Mercury\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 1,0\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Mercury | 1,0 | \u03bcg/l\n\nSource: \n", "contaminant": "Mercury", "file": "european-union-directive-2020-2184-mercury.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-mercury", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "1,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Mercury | 1,0 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Mercury \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Microcystin-LR\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 1,0\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Microcystin-LR | 1,0 | \u03bcg/l\n\nSource: \n", "contaminant": "Microcystin-LR", "file": "european-union-directive-2020-2184-microcystin-lr.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-microcystin-lr", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "1,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Microcystin-LR | 1,0 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Microcystin-LR \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nickel\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 20\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Nickel | 20 | \u03bcg/l\n\nSource: \n", "contaminant": "Nickel", "file": "european-union-directive-2020-2184-nickel.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-nickel", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "20", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Nickel | 20 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Nickel \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrate\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 50\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Nitrate | 50 | mg/l\n\nSource: \n", "contaminant": "Nitrate", "file": "european-union-directive-2020-2184-nitrate.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-nitrate", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Nitrate | 50 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Nitrate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrite\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,50\n\n**Unit:** mg/l\n\n**Limit type:** Parametric value\n\n> Nitrite | 0,50 | mg/l\n\nSource: \n", "contaminant": "Nitrite", "file": "european-union-directive-2020-2184-nitrite.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-nitrite", "limit_name": "Parametric value", "limit_unit": "mg/l", "limit_value": "0,50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Nitrite | 0,50 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Nitrite \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Oxidisability\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 5,0\n\n**Unit:** mg/l O 2\n\n**Limit type:** Indicator parameter\n\n> Oxidisability | 5,0 | mg/l O 2\n\nSource: \n", "contaminant": "Oxidisability", "file": "european-union-directive-2020-2184-oxidisability.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-oxidisability", "limit_name": "Indicator parameter", "limit_unit": "mg/l O 2", "limit_value": "5,0", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Oxidisability | 5,0 | mg/l O 2", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Oxidisability \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Pesticides Total\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,50\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Pesticides Total | 0,50 | \u03bcg/l\n\nSource: \n", "contaminant": "Pesticides Total", "file": "european-union-directive-2020-2184-pesticides-total.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-pesticides-total", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Pesticides Total | 0,50 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Pesticides Total \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Pesticides\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Pesticides | 0,10 | \u03bcg/l\n\nSource: \n", "contaminant": "Pesticides", "file": "european-union-directive-2020-2184-pesticides.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-pesticides", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Pesticides | 0,10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Pesticides \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFAS Total\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,50\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> PFAS Total | 0,50 | \u03bcg/l\n\nSource: \n", "contaminant": "PFAS Total", "file": "european-union-directive-2020-2184-pfas-total.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-pfas-total", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "PFAS Total | 0,50 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "PFAS Total \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Polycyclic aromatic hydrocarbons\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Polycyclic aromatic hydrocarbons | 0,10 | \u03bcg/l\n\nSource: \n", "contaminant": "Polycyclic aromatic hydrocarbons", "file": "european-union-directive-2020-2184-polycyclic-aromatic-hydrocarbons.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-polycyclic-aromatic-hydrocarbons", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Polycyclic aromatic hydrocarbons | 0,10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Polycyclic aromatic hydrocarbons \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Selenium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 20\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Selenium | 20 | \u03bcg/l\n\nSource: \n", "contaminant": "Selenium", "file": "european-union-directive-2020-2184-selenium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-selenium", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "20", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Selenium | 20 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Selenium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Sodium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 200\n\n**Unit:** mg/l\n\n**Limit type:** Indicator parameter\n\n> Sodium | 200 | mg/l\n\nSource: \n", "contaminant": "Sodium", "file": "european-union-directive-2020-2184-sodium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-sodium", "limit_name": "Indicator parameter", "limit_unit": "mg/l", "limit_value": "200", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Sodium | 200 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Sodium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Sulphate\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 250\n\n**Unit:** mg/l\n\n**Limit type:** Indicator parameter\n\n> Sulphate | 250 | mg/l\n\nSource: \n", "contaminant": "Sulphate", "file": "european-union-directive-2020-2184-sulphate.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-sulphate", "limit_name": "Indicator parameter", "limit_unit": "mg/l", "limit_value": "250", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Sulphate | 250 | mg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Sulphate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Sum of PFAS\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Sum of PFAS | 0,10 | \u03bcg/l\n\nSource: \n", "contaminant": "Sum of PFAS", "file": "european-union-directive-2020-2184-sum-of-pfas.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-sum-of-pfas", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Sum of PFAS | 0,10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Sum of PFAS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Tetrachloroethene and Trichloroethene\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Tetrachloroethene and Trichloroethene | 10 | \u03bcg/l\n\nSource: \n", "contaminant": "Tetrachloroethene and Trichloroethene", "file": "european-union-directive-2020-2184-tetrachloroethene-and-trichloroethene.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-tetrachloroethene-and-trichloroethene", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "10", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Tetrachloroethene and Trichloroethene | 10 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Tetrachloroethene and Trichloroethene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Trihalomethanes Total\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 100\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Trihalomethanes Total | 100 | \u03bcg/l\n\nSource: \n", "contaminant": "Trihalomethanes Total", "file": "european-union-directive-2020-2184-trihalomethanes-total.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-trihalomethanes-total", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "100", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Trihalomethanes Total | 100 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Trihalomethanes Total \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Uranium\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 30\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Uranium | 30 | \u03bcg/l\n\nSource: \n", "contaminant": "Uranium", "file": "european-union-directive-2020-2184-uranium.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-uranium", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "30", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Uranium | 30 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Uranium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Vinyl chloride\n\n**Regulator:** European Union (Directive 2020/2184)\n\n**Limit:** 0,50\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Parametric value\n\n> Vinyl chloride | 0,50 | \u03bcg/l\n\nSource: \n", "contaminant": "Vinyl chloride", "file": "european-union-directive-2020-2184-vinyl-chloride.md", "generated": true, "harvested": "2026-08-06", "id": "european-union-directive-2020-2184-vinyl-chloride", "limit_name": "Parametric value", "limit_unit": "\u03bcg/l", "limit_value": "0,50", "regulator": "European Union (Directive 2020/2184)", "source_quote": "Vinyl chloride | 0,50 | \u03bcg/l", "sources": ["https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32020L2184"], "stale_after": "2027-08-06", "title": "Vinyl chloride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1, 2 dichloroethane\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 3.0\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> 1, 2 dichloroethane | 3.0 | \u00b5g/1 |\n\nSource: \n", "contaminant": "1, 2 dichloroethane", "file": "united-kingdom-si-2016-614-1-2-dichloroethane.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-1-2-dichloroethane", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "3.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "1, 2 dichloroethane | 3.0 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "1, 2 dichloroethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Acrylamide\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.10\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Acrylamide | 0.10 | \u00b5g/1\n\nSource: \n", "contaminant": "Acrylamide", "file": "united-kingdom-si-2016-614-acrylamide.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-acrylamide", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Acrylamide | 0.10 | \u00b5g/1", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Acrylamide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Aluminium\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 200\n\n**Unit:** \u00b5gA1/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Aluminium | 200 | \u00b5gA1/1 |\n\nSource: \n", "contaminant": "Aluminium", "file": "united-kingdom-si-2016-614-aluminium.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-aluminium", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gA1/1", "limit_value": "200", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Aluminium | 200 | \u00b5gA1/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Aluminium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Antimony\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 5.0\n\n**Unit:** \u00b5gSb/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Antimony | 5.0 | \u00b5gSb/1 |\n\nSource: \n", "contaminant": "Antimony", "file": "united-kingdom-si-2016-614-antimony.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-antimony", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gSb/1", "limit_value": "5.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Antimony | 5.0 | \u00b5gSb/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Antimony \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Arsenic\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 10\n\n**Unit:** \u00b5gAs/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Arsenic | 10 | \u00b5gAs/1 |\n\nSource: \n", "contaminant": "Arsenic", "file": "united-kingdom-si-2016-614-arsenic.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-arsenic", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gAs/1", "limit_value": "10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Arsenic | 10 | \u00b5gAs/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Arsenic \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzene\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 1.0\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Benzene | 1.0 | \u00b5g/1 |\n\nSource: \n", "contaminant": "Benzene", "file": "united-kingdom-si-2016-614-benzene.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-benzene", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "1.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Benzene | 1.0 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Benzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzo(a)pyrene\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.010\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Benzo(a)pyrene | 0.010 | \u00b5g/1 |\n\nSource: \n", "contaminant": "Benzo(a)pyrene", "file": "united-kingdom-si-2016-614-benzo-a-pyrene.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-benzo-a-pyrene", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.010", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Benzo(a)pyrene | 0.010 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Benzo(a)pyrene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Boron\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 1.0\n\n**Unit:** mgB/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Boron | 1.0 | mgB/1 |\n\nSource: \n", "contaminant": "Boron", "file": "united-kingdom-si-2016-614-boron.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-boron", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgB/1", "limit_value": "1.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Boron | 1.0 | mgB/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Boron \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Bromate\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 10\n\n**Unit:** \u00b5gBrO3/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Bromate | 10 | \u00b5gBrO3/1 |\n\nSource: \n", "contaminant": "Bromate", "file": "united-kingdom-si-2016-614-bromate.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-bromate", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gBrO3/1", "limit_value": "10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Bromate | 10 | \u00b5gBrO3/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Bromate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cadmium\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 5.0\n\n**Unit:** \u00b5gCd/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Cadmium | 5.0 | \u00b5gCd/1 |\n\nSource: \n", "contaminant": "Cadmium", "file": "united-kingdom-si-2016-614-cadmium.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-cadmium", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gCd/1", "limit_value": "5.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Cadmium | 5.0 | \u00b5gCd/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Cadmium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chromium\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 50\n\n**Unit:** \u00b5gCr/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Chromium | 50 | \u00b5gCr/1 |\n\nSource: \n", "contaminant": "Chromium", "file": "united-kingdom-si-2016-614-chromium.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-chromium", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gCr/1", "limit_value": "50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Chromium | 50 | \u00b5gCr/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Chromium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Coliform bacteria\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0\n\n**Unit:** number/100ml\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Coliform bacteria | 0 | number/100ml | Service reservoirs\n\nSource: \n", "contaminant": "Coliform bacteria", "file": "united-kingdom-si-2016-614-coliform-bacteria.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-coliform-bacteria", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "number/100ml", "limit_value": "0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Coliform bacteria | 0 | number/100ml | Service reservoirs", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Coliform bacteria \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Colour\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 20\n\n**Unit:** mg/1 Pt/Co\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Colour | 20 | mg/1 Pt/Co |\n\nSource: \n", "contaminant": "Colour", "file": "united-kingdom-si-2016-614-colour.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-colour", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mg/1 Pt/Co", "limit_value": "20", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Colour | 20 | mg/1 Pt/Co |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Colour \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Copper\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 2.0\n\n**Unit:** mgCu/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Copper | 2.0 | mgCu/1 |\n\nSource: \n", "contaminant": "Copper", "file": "united-kingdom-si-2016-614-copper.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-copper", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgCu/1", "limit_value": "2.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Copper | 2.0 | mgCu/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Copper \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cyanide\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 50\n\n**Unit:** \u00b5gCN/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Cyanide | 50 | \u00b5gCN/1 |\n\nSource: \n", "contaminant": "Cyanide", "file": "united-kingdom-si-2016-614-cyanide.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-cyanide", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gCN/1", "limit_value": "50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Cyanide | 50 | \u00b5gCN/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Cyanide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Enterococci\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0\n\n**Unit:** number/100ml\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Enterococci | 0 | number/100ml |\n\nSource: \n", "contaminant": "Enterococci", "file": "united-kingdom-si-2016-614-enterococci.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-enterococci", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "number/100ml", "limit_value": "0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Enterococci | 0 | number/100ml |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Enterococci \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Epichlorohydrin\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.10\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Epichlorohydrin | 0.10 | \u00b5g/1\n\nSource: \n", "contaminant": "Epichlorohydrin", "file": "united-kingdom-si-2016-614-epichlorohydrin.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-epichlorohydrin", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Epichlorohydrin | 0.10 | \u00b5g/1", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Epichlorohydrin \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Escherichia coli (E. coli)\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0\n\n**Unit:** number/100ml\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Escherichia coli (E. coli) | 0 | number/100ml |\n\nSource: \n", "contaminant": "Escherichia coli (E. coli)", "file": "united-kingdom-si-2016-614-escherichia-coli-e-coli.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-escherichia-coli-e-coli", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "number/100ml", "limit_value": "0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Escherichia coli (E. coli) | 0 | number/100ml |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Escherichia coli (E. coli) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Fluoride\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 1.5\n\n**Unit:** mgF/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Fluoride | 1.5 | mgF/1 |\n\nSource: \n", "contaminant": "Fluoride", "file": "united-kingdom-si-2016-614-fluoride.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-fluoride", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgF/1", "limit_value": "1.5", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Fluoride | 1.5 | mgF/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Fluoride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Iron\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 200\n\n**Unit:** \u00b5gFe/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Iron | 200 | \u00b5gFe/1 |\n\nSource: \n", "contaminant": "Iron", "file": "united-kingdom-si-2016-614-iron.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-iron", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gFe/1", "limit_value": "200", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Iron | 200 | \u00b5gFe/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Iron \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Lead\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 10\n\n**Unit:** \u00b5gPb/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Lead | 10 | \u00b5gPb/1 |\n\nSource: \n", "contaminant": "Lead", "file": "united-kingdom-si-2016-614-lead.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-lead", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gPb/1", "limit_value": "10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Lead | 10 | \u00b5gPb/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Lead \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Manganese\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 50\n\n**Unit:** \u00b5gMn/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Manganese | 50 | \u00b5gMn/1 |\n\nSource: \n", "contaminant": "Manganese", "file": "united-kingdom-si-2016-614-manganese.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-manganese", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gMn/1", "limit_value": "50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Manganese | 50 | \u00b5gMn/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Manganese \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Mercury\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 1.0\n\n**Unit:** \u00b5gHg/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Mercury | 1.0 | \u00b5gHg/1 |\n\nSource: \n", "contaminant": "Mercury", "file": "united-kingdom-si-2016-614-mercury.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-mercury", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gHg/1", "limit_value": "1.0", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Mercury | 1.0 | \u00b5gHg/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Mercury \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nickel\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 20\n\n**Unit:** \u00b5gNi/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Nickel | 20 | \u00b5gNi/1 |\n\nSource: \n", "contaminant": "Nickel", "file": "united-kingdom-si-2016-614-nickel.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-nickel", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gNi/1", "limit_value": "20", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Nickel | 20 | \u00b5gNi/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Nickel \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrate\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 50\n\n**Unit:** mgNO3/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Nitrate (ii) | 50 | mgNO3/1 |\n\nSource: \n", "contaminant": "Nitrate", "file": "united-kingdom-si-2016-614-nitrate.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-nitrate", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgNO3/1", "limit_value": "50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Nitrate (ii) | 50 | mgNO3/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Nitrate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrite\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.50\n\n**Unit:** mgNO2/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Nitrite (ii) | 0.50 | mgNO2/1 |\n\nSource: \n", "contaminant": "Nitrite", "file": "united-kingdom-si-2016-614-nitrite.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-nitrite", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgNO2/1", "limit_value": "0.50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Nitrite (ii) | 0.50 | mgNO2/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Nitrite \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Other pesticides\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Other pesticides | 0.10 | \u03bcg/l |\n\nSource: \n", "contaminant": "Other pesticides", "file": "united-kingdom-si-2016-614-other-pesticides.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-other-pesticides", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u03bcg/l", "limit_value": "0.10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Other pesticides | 0.10 | \u03bcg/l |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Other pesticides \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Pesticides (Aldrin, Dieldrin, Heptachlor, Heptachlor epoxide)\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.030\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Pesticides (iii) (iv) | 0.030 | \u00b5g/1 | Consumers\u2019 taps | | Aldrin\n\nSource: \n", "contaminant": "Pesticides (Aldrin, Dieldrin, Heptachlor, Heptachlor epoxide)", "file": "united-kingdom-si-2016-614-pesticides-aldrin-dieldrin-heptachlor-heptachlor-epoxide.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-pesticides-aldrin-dieldrin-heptachlor-heptachlor-epoxide", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.030", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Pesticides (iii) (iv) | 0.030 | \u00b5g/1 | Consumers\u2019 taps | | Aldrin", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Pesticides (Aldrin, Dieldrin, Heptachlor, Heptachlor epoxide) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "contaminant, limit_name", "verified": false} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Pesticides: total\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.50\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Pesticides: total (v) | 0.50 | \u00b5g/1 |\n\nSource: \n", "contaminant": "Pesticides: total", "file": "united-kingdom-si-2016-614-pesticides-total.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-pesticides-total", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Pesticides: total (v) | 0.50 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Pesticides: total \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Polycyclic aromatic hydrocarbon\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.10\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> \u00b5g/1 | Consumers\u2019 taps | 22. | Polycyclic aromatic hydrocarbon (vi) | 0.10 |\n\nSource: \n", "contaminant": "Polycyclic aromatic hydrocarbon", "file": "united-kingdom-si-2016-614-polycyclic-aromatic-hydrocarbon.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-polycyclic-aromatic-hydrocarbon", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "\u00b5g/1 | Consumers\u2019 taps | 22. | Polycyclic aromatic hydrocarbon (vi) | 0.10 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Polycyclic aromatic hydrocarbon \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Selenium\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 10\n\n**Unit:** \u00b5gSe/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Selenium | 10 | \u00b5gSe/1 |\n\nSource: \n", "contaminant": "Selenium", "file": "united-kingdom-si-2016-614-selenium.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-selenium", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5gSe/1", "limit_value": "10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Selenium | 10 | \u00b5gSe/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Selenium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Sodium\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 200\n\n**Unit:** mgNa/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Sodium | 200 | mgNa/1 |\n\nSource: \n", "contaminant": "Sodium", "file": "united-kingdom-si-2016-614-sodium.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-sodium", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "mgNa/1", "limit_value": "200", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Sodium | 200 | mgNa/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Sodium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Tetrachloroethene and Trichloroethene\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 10\n\n**Unit:** \u03bcg/l\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> 10 | \u00b5gSe/1 | Consumers\u2019 taps | 24. | Tetrachloroethene and Trichloroethene (vii) | 10 | \u03bcg/l |\n\nSource: \n", "contaminant": "Tetrachloroethene and Trichloroethene", "file": "united-kingdom-si-2016-614-tetrachloroethene-and-trichloroethene.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-tetrachloroethene-and-trichloroethene", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u03bcg/l", "limit_value": "10", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "10 | \u00b5gSe/1 | Consumers\u2019 taps | 24. | Tetrachloroethene and Trichloroethene (vii) | 10 | \u03bcg/l |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Tetrachloroethene and Trichloroethene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Tetrachloromethane\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 3\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Tetrachloromethane | 3 | \u00b5g/1 |\n\nSource: \n", "contaminant": "Tetrachloromethane", "file": "united-kingdom-si-2016-614-tetrachloromethane.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-tetrachloromethane", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "3", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Tetrachloromethane | 3 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Tetrachloromethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Trihalomethanes: Total\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 100\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Trihalomethanes: Total (viii) | 100 | \u00b5g/1 |\n\nSource: \n", "contaminant": "Trihalomethanes: Total", "file": "united-kingdom-si-2016-614-trihalomethanes-total.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-trihalomethanes-total", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "100", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Trihalomethanes: Total (viii) | 100 | \u00b5g/1 |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Trihalomethanes: Total \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Turbidity\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 4\n\n**Unit:** NTU\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Turbidity | 4 | NTU |\n\nSource: \n", "contaminant": "Turbidity", "file": "united-kingdom-si-2016-614-turbidity.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-turbidity", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "NTU", "limit_value": "4", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Turbidity | 4 | NTU |", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Turbidity \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Vinyl chloride\n\n**Regulator:** United Kingdom (SI 2016/614)\n\n**Limit:** 0.50\n\n**Unit:** \u00b5g/1\n\n**Limit type:** Prescribed concentration or value (maximum)\n\n> Vinyl chloride | 0.50 | \u00b5g/1\n\nSource: \n", "contaminant": "Vinyl chloride", "file": "united-kingdom-si-2016-614-vinyl-chloride.md", "generated": true, "harvested": "2026-08-06", "id": "united-kingdom-si-2016-614-vinyl-chloride", "limit_name": "Prescribed concentration or value (maximum)", "limit_unit": "\u00b5g/1", "limit_value": "0.50", "regulator": "United Kingdom (SI 2016/614)", "source_quote": "Vinyl chloride | 0.50 | \u00b5g/1", "sources": ["https://www.legislation.gov.uk/uksi/2016/614/schedule/1/made"], "stale_after": "2027-08-06", "title": "Vinyl chloride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,1,1-Trichloroethane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.2\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,1,1-Trichloroethane | 0.20 | 0.2\n\nSource: \n", "contaminant": "1,1,1-Trichloroethane", "file": "us-epa-national-primary-drinking-water-regulations-1-1-1-trichloroethane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-1-1-trichloroethane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.2", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,1,1-Trichloroethane | 0.20 | 0.2", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,1,1-Trichloroethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,1,2-Trichloroethane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,1,2-Trichloroethane | 0.003 | 0.005\n\nSource: \n", "contaminant": "1,1,2-Trichloroethane", "file": "us-epa-national-primary-drinking-water-regulations-1-1-2-trichloroethane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-1-2-trichloroethane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,1,2-Trichloroethane | 0.003 | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,1,2-Trichloroethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,1-Dichloroethylene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.007\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,1-Dichloroethylene | 0.007 | 0.007\n\nSource: \n", "contaminant": "1,1-Dichloroethylene", "file": "us-epa-national-primary-drinking-water-regulations-1-1-dichloroethylene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-1-dichloroethylene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.007", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,1-Dichloroethylene | 0.007 | 0.007", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,1-Dichloroethylene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,2,4-Trichlorobenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.07\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,2,4-Trichlorobenzene | 0.07 | 0.07\n\nSource: \n", "contaminant": "1,2,4-Trichlorobenzene", "file": "us-epa-national-primary-drinking-water-regulations-1-2-4-trichlorobenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-2-4-trichlorobenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.07", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,2,4-Trichlorobenzene | 0.07 | 0.07", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,2,4-Trichlorobenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,2-Dibromo-3-chloropropane (DBCP)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,2-Dibromo-3-chloropropane ( DBCP ) | zero | 0.0002\n\nSource: \n", "contaminant": "1,2-Dibromo-3-chloropropane (DBCP)", "file": "us-epa-national-primary-drinking-water-regulations-1-2-dibromo-3-chloropropane-dbcp.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-2-dibromo-3-chloropropane-dbcp", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,2-Dibromo-3-chloropropane ( DBCP ) | zero | 0.0002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,2-Dibromo-3-chloropropane (DBCP) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,2-Dichloroethane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,2-Dichloroethane | zero | 0.005\n\nSource: \n", "contaminant": "1,2-Dichloroethane", "file": "us-epa-national-primary-drinking-water-regulations-1-2-dichloroethane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-2-dichloroethane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,2-Dichloroethane | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,2-Dichloroethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 1,2-Dichloropropane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 1,2-Dichloropropane | zero | 0.005\n\nSource: \n", "contaminant": "1,2-Dichloropropane", "file": "us-epa-national-primary-drinking-water-regulations-1-2-dichloropropane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-1-2-dichloropropane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "1,2-Dichloropropane | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "1,2-Dichloropropane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 2,4,5-TP (Silvex)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.05\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 2,4,5-TP ( Silvex ) | 0.05 | 0.05\n\nSource: \n", "contaminant": "2,4,5-TP (Silvex)", "file": "us-epa-national-primary-drinking-water-regulations-2-4-5-tp-silvex.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-2-4-5-tp-silvex", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.05", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "2,4,5-TP ( Silvex ) | 0.05 | 0.05", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "2,4,5-TP (Silvex) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** 2,4-D\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.07\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> 2,4-D | 0.07 | 0.07\n\nSource: \n", "contaminant": "2,4-D", "file": "us-epa-national-primary-drinking-water-regulations-2-4-d.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-2-4-d", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.07", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "2,4-D | 0.07 | 0.07", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "2,4-D \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Acrylamide\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Acrylamide | zero | TT 8\n\nSource: \n", "contaminant": "Acrylamide", "file": "us-epa-national-primary-drinking-water-regulations-acrylamide.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-acrylamide", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Acrylamide | zero | TT 8", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Acrylamide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Alachlor\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Alachlor | zero | 0.002\n\nSource: \n", "contaminant": "Alachlor", "file": "us-epa-national-primary-drinking-water-regulations-alachlor.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-alachlor", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Alachlor | zero | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Alachlor \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Alpha particles\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 15 picocuries per Liter (pCi/L)\n\n**Unit:** pCi/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Alpha particles | none ---------- zero | 15 picocuries per Liter ( pCi/L )\n\nSource: \n", "contaminant": "Alpha particles", "file": "us-epa-national-primary-drinking-water-regulations-alpha-particles.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-alpha-particles", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "pCi/L", "limit_value": "15 picocuries per Liter (pCi/L)", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Alpha particles | none ---------- zero | 15 picocuries per Liter ( pCi/L )", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Alpha particles \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Antimony\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.006\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Antimony | 0.006 | 0.006\n\nSource: \n", "contaminant": "Antimony", "file": "us-epa-national-primary-drinking-water-regulations-antimony.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-antimony", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.006", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Antimony | 0.006 | 0.006", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Antimony \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Arsenic\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.010 as of 01/23/06\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> MCL or TT 1 ( mg/L ) 2 | Potential Health Effects from Long-Term Exposure Above the MCL (unless specified as short-term) | Sources of Contaminant in Drinking Water | Antimony | 0.006 | 0.006 | Increase in blood cholesterol; decrease in blood sugar | Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder | Arsenic Quick reference guide Consumer fact sheet | 0 | 0.010 as of 01/23/06 |\n\nSource: \n", "contaminant": "Arsenic", "file": "us-epa-national-primary-drinking-water-regulations-arsenic.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-arsenic", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.010 as of 01/23/06", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "MCL or TT 1 ( mg/L ) 2 | Potential Health Effects from Long-Term Exposure Above the MCL (unless specified as short-term) | Sources of Contaminant in Drinking Water | Antimony | 0.006 | 0.006 | Increase in blood cholesterol; decrease in blood sugar | Discharge from petroleum refineries; fire retardants; ceramics; electronics; solder | Arsenic Quick reference guide Consumer fact sheet | 0 | 0.010 as of 01/23/06 |", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Arsenic \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Asbestos (fiber > 10 micrometers)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 7 MFL\n\n**Unit:** MFL\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Asbestos (fiber > 10 micrometers) | 7 million fibers per liter ( MFL ) | 7 MFL\n\nSource: \n", "contaminant": "Asbestos (fiber > 10 micrometers)", "file": "us-epa-national-primary-drinking-water-regulations-asbestos-fiber-10-micrometers.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-asbestos-fiber-10-micrometers", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "MFL", "limit_value": "7 MFL", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Asbestos (fiber > 10 micrometers) | 7 million fibers per liter ( MFL ) | 7 MFL", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Asbestos (fiber > 10 micrometers) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Atrazine\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.003\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Atrazine | 0.003 | 0.003\n\nSource: \n", "contaminant": "Atrazine", "file": "us-epa-national-primary-drinking-water-regulations-atrazine.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-atrazine", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.003", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Atrazine | 0.003 | 0.003", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Atrazine \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Barium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 2\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Barium | 2 | 2\n\nSource: \n", "contaminant": "Barium", "file": "us-epa-national-primary-drinking-water-regulations-barium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-barium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "2", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Barium | 2 | 2", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Barium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Benzene | zero | 0.005\n\nSource: \n", "contaminant": "Benzene", "file": "us-epa-national-primary-drinking-water-regulations-benzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-benzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Benzene | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Benzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Benzo(a)pyrene (PAHs)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Benzo(a)pyrene (PAHs) | zero | 0.0002\n\nSource: \n", "contaminant": "Benzo(a)pyrene (PAHs)", "file": "us-epa-national-primary-drinking-water-regulations-benzo-a-pyrene-pahs.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-benzo-a-pyrene-pahs", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Benzo(a)pyrene (PAHs) | zero | 0.0002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Benzo(a)pyrene (PAHs) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Beryllium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.004\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Beryllium | 0.004 | 0.004\n\nSource: \n", "contaminant": "Beryllium", "file": "us-epa-national-primary-drinking-water-regulations-beryllium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-beryllium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.004", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Beryllium | 0.004 | 0.004", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Beryllium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Beta particles and photon emitters\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 4 millirems per year\n\n**Unit:** millirems per year\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Beta particles and photon emitters | none ---------- zero | 4 millirems per year\n\nSource: \n", "contaminant": "Beta particles and photon emitters", "file": "us-epa-national-primary-drinking-water-regulations-beta-particles-and-photon-emitters.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-beta-particles-and-photon-emitters", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "millirems per year", "limit_value": "4 millirems per year", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Beta particles and photon emitters | none ---------- zero | 4 millirems per year", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Beta particles and photon emitters \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Bromate\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.010\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Bromate | zero | 0.010\n\nSource: \n", "contaminant": "Bromate", "file": "us-epa-national-primary-drinking-water-regulations-bromate.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-bromate", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.010", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Bromate | zero | 0.010", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Bromate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cadmium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Cadmium | 0.005 | 0.005\n\nSource: \n", "contaminant": "Cadmium", "file": "us-epa-national-primary-drinking-water-regulations-cadmium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-cadmium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Cadmium | 0.005 | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Cadmium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Carbofuran\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.04\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Carbofuran | 0.04 | 0.04\n\nSource: \n", "contaminant": "Carbofuran", "file": "us-epa-national-primary-drinking-water-regulations-carbofuran.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-carbofuran", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.04", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Carbofuran | 0.04 | 0.04", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Carbofuran \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Carbon tetrachloride\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Carbon tetrachloride | zero | 0.005\n\nSource: \n", "contaminant": "Carbon tetrachloride", "file": "us-epa-national-primary-drinking-water-regulations-carbon-tetrachloride.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-carbon-tetrachloride", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Carbon tetrachloride | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Carbon tetrachloride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chloramines (as Cl2)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** MRDL=4.0\n\n**Unit:** mg/L\n\n**Limit type:** MRDL (Maximum Residual Disinfectant Level)\n\n> Chloramines (as Cl 2 ) | MRDLG =4 1 | MRDL =4.0 1\n\nSource: \n", "contaminant": "Chloramines (as Cl2)", "file": "us-epa-national-primary-drinking-water-regulations-chloramines-as-cl2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chloramines-as-cl2", "limit_name": "MRDL (Maximum Residual Disinfectant Level)", "limit_unit": "mg/L", "limit_value": "MRDL=4.0", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chloramines (as Cl 2 ) | MRDLG =4 1 | MRDL =4.0 1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chloramines (as Cl2) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlordane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Chlordane | zero | 0.002\n\nSource: \n", "contaminant": "Chlordane", "file": "us-epa-national-primary-drinking-water-regulations-chlordane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chlordane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chlordane | zero | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chlordane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorine (as Cl2)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** MRDL=4.0\n\n**Unit:** mg/L\n\n**Limit type:** MRDL (Maximum Residual Disinfectant Level)\n\n> Chlorine (as Cl 2 ) | MRDLG =4 1 | MRDL =4.0 1\n\nSource: \n", "contaminant": "Chlorine (as Cl2)", "file": "us-epa-national-primary-drinking-water-regulations-chlorine-as-cl2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chlorine-as-cl2", "limit_name": "MRDL (Maximum Residual Disinfectant Level)", "limit_unit": "mg/L", "limit_value": "MRDL=4.0", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chlorine (as Cl 2 ) | MRDLG =4 1 | MRDL =4.0 1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chlorine (as Cl2) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorine dioxide (as ClO2)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** MRDL=0.8\n\n**Unit:** mg/L\n\n**Limit type:** MRDL (Maximum Residual Disinfectant Level)\n\n> Chlorine dioxide (as ClO 2 ) | MRDLG =0.8 1 | MRDL =0.8 1\n\nSource: \n", "contaminant": "Chlorine dioxide (as ClO2)", "file": "us-epa-national-primary-drinking-water-regulations-chlorine-dioxide-as-clo2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chlorine-dioxide-as-clo2", "limit_name": "MRDL (Maximum Residual Disinfectant Level)", "limit_unit": "mg/L", "limit_value": "MRDL=0.8", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chlorine dioxide (as ClO 2 ) | MRDLG =0.8 1 | MRDL =0.8 1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chlorine dioxide (as ClO2) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorite\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 1.0\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Chlorite | 0.8 | 1.0\n\nSource: \n", "contaminant": "Chlorite", "file": "us-epa-national-primary-drinking-water-regulations-chlorite.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chlorite", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "1.0", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chlorite | 0.8 | 1.0", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chlorite \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chlorobenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Chlorobenzene | 0.1 | 0.1\n\nSource: \n", "contaminant": "Chlorobenzene", "file": "us-epa-national-primary-drinking-water-regulations-chlorobenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chlorobenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chlorobenzene | 0.1 | 0.1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chlorobenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Chromium (total)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Chromium (total) | 0.1 | 0.1\n\nSource: \n", "contaminant": "Chromium (total)", "file": "us-epa-national-primary-drinking-water-regulations-chromium-total.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-chromium-total", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Chromium (total) | 0.1 | 0.1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Chromium (total) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** cis-1,2-Dichloroethylene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.07\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> cis-1,2-Dichloroethylene | 0.07 | 0.07\n\nSource: \n", "contaminant": "cis-1,2-Dichloroethylene", "file": "us-epa-national-primary-drinking-water-regulations-cis-1-2-dichloroethylene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-cis-1-2-dichloroethylene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.07", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "cis-1,2-Dichloroethylene | 0.07 | 0.07", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "cis-1,2-Dichloroethylene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Copper\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT; Action Level=1.3\n\n**Unit:** mg/L\n\n**Limit type:** Treatment Technique\n\n> Copper | 1.3 | TT 7 ; Action Level=1.3\n\nSource: \n", "contaminant": "Copper", "file": "us-epa-national-primary-drinking-water-regulations-copper.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-copper", "limit_name": "Treatment Technique", "limit_unit": "mg/L", "limit_value": "TT; Action Level=1.3", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Copper | 1.3 | TT 7 ; Action Level=1.3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Copper \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit, limit_value", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cryptosporidium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Cryptosporidium | zero | TT 3\n\nSource: \n", "contaminant": "Cryptosporidium", "file": "us-epa-national-primary-drinking-water-regulations-cryptosporidium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-cryptosporidium", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Cryptosporidium | zero | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Cryptosporidium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Cyanide (as free cyanide)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.2\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Cyanide (as free cyanide) | 0.2 | 0.2\n\nSource: \n", "contaminant": "Cyanide (as free cyanide)", "file": "us-epa-national-primary-drinking-water-regulations-cyanide-as-free-cyanide.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-cyanide-as-free-cyanide", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.2", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Cyanide (as free cyanide) | 0.2 | 0.2", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Cyanide (as free cyanide) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Dalapon\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.2\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Dalapon | 0.2 | 0.2\n\nSource: \n", "contaminant": "Dalapon", "file": "us-epa-national-primary-drinking-water-regulations-dalapon.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-dalapon", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.2", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Dalapon | 0.2 | 0.2", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Dalapon \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Di(2-ethylhexyl) adipate\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.4\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Di(2-ethylhexyl) adipate | 0.4 | 0.4\n\nSource: \n", "contaminant": "Di(2-ethylhexyl) adipate", "file": "us-epa-national-primary-drinking-water-regulations-di-2-ethylhexyl-adipate.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-di-2-ethylhexyl-adipate", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.4", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Di(2-ethylhexyl) adipate | 0.4 | 0.4", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Di(2-ethylhexyl) adipate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Di(2-ethylhexyl) phthalate\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.006\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Di(2-ethylhexyl) phthalate | zero | 0.006\n\nSource: \n", "contaminant": "Di(2-ethylhexyl) phthalate", "file": "us-epa-national-primary-drinking-water-regulations-di-2-ethylhexyl-phthalate.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-di-2-ethylhexyl-phthalate", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.006", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Di(2-ethylhexyl) phthalate | zero | 0.006", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Di(2-ethylhexyl) phthalate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Dichloromethane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Dichloromethane | zero | 0.005\n\nSource: \n", "contaminant": "Dichloromethane", "file": "us-epa-national-primary-drinking-water-regulations-dichloromethane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-dichloromethane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Dichloromethane | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Dichloromethane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Dinoseb\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.007\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Dinoseb | 0.007 | 0.007\n\nSource: \n", "contaminant": "Dinoseb", "file": "us-epa-national-primary-drinking-water-regulations-dinoseb.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-dinoseb", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.007", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Dinoseb | 0.007 | 0.007", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Dinoseb \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Dioxin (2,3,7,8-TCDD)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.00000003\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Dioxin ( 2,3,7,8-TCDD ) | zero | 0.00000003\n\nSource: \n", "contaminant": "Dioxin (2,3,7,8-TCDD)", "file": "us-epa-national-primary-drinking-water-regulations-dioxin-2-3-7-8-tcdd.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-dioxin-2-3-7-8-tcdd", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.00000003", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Dioxin ( 2,3,7,8-TCDD ) | zero | 0.00000003", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Dioxin (2,3,7,8-TCDD) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Diquat\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.02\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Diquat | 0.02 | 0.02\n\nSource: \n", "contaminant": "Diquat", "file": "us-epa-national-primary-drinking-water-regulations-diquat.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-diquat", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.02", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Diquat | 0.02 | 0.02", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Diquat \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Endothall\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Endothall | 0.1 | 0.1\n\nSource: \n", "contaminant": "Endothall", "file": "us-epa-national-primary-drinking-water-regulations-endothall.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-endothall", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Endothall | 0.1 | 0.1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Endothall \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Endrin\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Endrin | 0.002 | 0.002\n\nSource: \n", "contaminant": "Endrin", "file": "us-epa-national-primary-drinking-water-regulations-endrin.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-endrin", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Endrin | 0.002 | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Endrin \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Epichlorohydrin\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Epichlorohydrin | zero | TT 8\n\nSource: \n", "contaminant": "Epichlorohydrin", "file": "us-epa-national-primary-drinking-water-regulations-epichlorohydrin.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-epichlorohydrin", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Epichlorohydrin | zero | TT 8", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Epichlorohydrin \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Ethylbenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.7\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Ethylbenzene | 0.7 | 0.7\n\nSource: \n", "contaminant": "Ethylbenzene", "file": "us-epa-national-primary-drinking-water-regulations-ethylbenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-ethylbenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.7", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Ethylbenzene | 0.7 | 0.7", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Ethylbenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Ethylene dibromide\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.00005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Ethylene dibromide | zero | 0.00005\n\nSource: \n", "contaminant": "Ethylene dibromide", "file": "us-epa-national-primary-drinking-water-regulations-ethylene-dibromide.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-ethylene-dibromide", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.00005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Ethylene dibromide | zero | 0.00005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Ethylene dibromide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Fluoride\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 4.0\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Fluoride | 4.0 | 4.0\n\nSource: \n", "contaminant": "Fluoride", "file": "us-epa-national-primary-drinking-water-regulations-fluoride.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-fluoride", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "4.0", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Fluoride | 4.0 | 4.0", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Fluoride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Giardia lamblia\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Giardia lamblia | zero | TT 3\n\nSource: \n", "contaminant": "Giardia lamblia", "file": "us-epa-national-primary-drinking-water-regulations-giardia-lamblia.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-giardia-lamblia", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Giardia lamblia | zero | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Giardia lamblia \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Glyphosate\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.7\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Glyphosate | 0.7 | 0.7\n\nSource: \n", "contaminant": "Glyphosate", "file": "us-epa-national-primary-drinking-water-regulations-glyphosate.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-glyphosate", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.7", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Glyphosate | 0.7 | 0.7", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Glyphosate \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Haloacetic acids (HAA5)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.060\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Haloacetic acids ( HAA5) | n/a 6 | 0.060\n\nSource: \n", "contaminant": "Haloacetic acids (HAA5)", "file": "us-epa-national-primary-drinking-water-regulations-haloacetic-acids-haa5.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-haloacetic-acids-haa5", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.060", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Haloacetic acids ( HAA5) | n/a 6 | 0.060", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Haloacetic acids (HAA5) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 1(unitless)\n\n**Unit:** unitless\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA) | 1(unitless) | 1(unitless)\n\nSource: \n", "contaminant": "Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA)", "file": "us-epa-national-primary-drinking-water-regulations-hazard-index-pfas-hfpo-da-pfbs-pfhxs-and-pfna.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-hazard-index-pfas-hfpo-da-pfbs-pfhxs-and-pfna", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "unitless", "limit_value": "1(unitless)", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA) | 1(unitless) | 1(unitless)", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Hazard Index PFAS (HFPO-DA, PFBS, PFHxS, and PFNA) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Heptachlor epoxide\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Heptachlor epoxide | zero | 0.0002\n\nSource: \n", "contaminant": "Heptachlor epoxide", "file": "us-epa-national-primary-drinking-water-regulations-heptachlor-epoxide.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-heptachlor-epoxide", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Heptachlor epoxide | zero | 0.0002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Heptachlor epoxide \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Heptachlor\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0004\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Heptachlor | zero | 0.0004\n\nSource: \n", "contaminant": "Heptachlor", "file": "us-epa-national-primary-drinking-water-regulations-heptachlor.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-heptachlor", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0004", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Heptachlor | zero | 0.0004", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Heptachlor \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Heterotrophic plate count (HPC)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Heterotrophic plate count ( HPC ) | n/a | TT 3\n\nSource: \n", "contaminant": "Heterotrophic plate count (HPC)", "file": "us-epa-national-primary-drinking-water-regulations-heterotrophic-plate-count-hpc.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-heterotrophic-plate-count-hpc", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Heterotrophic plate count ( HPC ) | n/a | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Heterotrophic plate count (HPC) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Hexachlorobenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.001\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Hexachlorobenzene | zero | 0.001\n\nSource: \n", "contaminant": "Hexachlorobenzene", "file": "us-epa-national-primary-drinking-water-regulations-hexachlorobenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-hexachlorobenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.001", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Hexachlorobenzene | zero | 0.001", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Hexachlorobenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Hexachlorocyclopentadiene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.05\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Hexachlorocyclopentadiene | 0.05 | 0.05\n\nSource: \n", "contaminant": "Hexachlorocyclopentadiene", "file": "us-epa-national-primary-drinking-water-regulations-hexachlorocyclopentadiene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-hexachlorocyclopentadiene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.05", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Hexachlorocyclopentadiene | 0.05 | 0.05", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Hexachlorocyclopentadiene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** HFPO-DA (commonly known as GenX Chemicals)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 10 ppt\n\n**Unit:** ppt\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> HFPO-DA (commonly known as GenX Chemicals) | 10 ppt | 10 ppt\n\nSource: \n", "contaminant": "HFPO-DA (commonly known as GenX Chemicals)", "file": "us-epa-national-primary-drinking-water-regulations-hfpo-da-commonly-known-as-genx-chemicals.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-hfpo-da-commonly-known-as-genx-chemicals", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ppt", "limit_value": "10 ppt", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "HFPO-DA (commonly known as GenX Chemicals) | 10 ppt | 10 ppt", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "HFPO-DA (commonly known as GenX Chemicals) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** HFPO-DA (commonly knowns as GenX Chemicals)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.00001\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> HFPO-DA (commonly knowns as GenX Chemicals) | 0.00001 | 0.00001\n\nSource: \n", "contaminant": "HFPO-DA (commonly knowns as GenX Chemicals)", "file": "us-epa-national-primary-drinking-water-regulations-hfpo-da-commonly-knowns-as-genx-chemicals.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-hfpo-da-commonly-knowns-as-genx-chemicals", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.00001", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "HFPO-DA (commonly knowns as GenX Chemicals) | 0.00001 | 0.00001", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "HFPO-DA (commonly knowns as GenX Chemicals) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Lead\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT; Action Level=0.010\n\n**Unit:** mg/L\n\n**Limit type:** Treatment Technique\n\n> monochloroacetic acid (0.07 mg/L ). Bromoacetic acid and dibromoacetic acid are regulated with this group but have no MCLGs. 7 Lead and copper are regulated by a treatment technique that requires systems to control the corrosiveness of their water.\n\nSource: \n", "contaminant": "Lead", "file": "us-epa-national-primary-drinking-water-regulations-lead.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-lead", "limit_name": "Treatment Technique", "limit_unit": "mg/L", "limit_value": "TT; Action Level=0.010", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "monochloroacetic acid (0.07 mg/L ). Bromoacetic acid and dibromoacetic acid are regulated with this group but have no MCLGs. 7 Lead and copper are regulated by a treatment technique that requires systems to control the corrosiveness of their water.", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Lead \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_value", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Legionella\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Legionella | zero | TT 3\n\nSource: \n", "contaminant": "Legionella", "file": "us-epa-national-primary-drinking-water-regulations-legionella.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-legionella", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Legionella | zero | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Legionella \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Lindane\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Lindane | 0.0002 | 0.0002\n\nSource: \n", "contaminant": "Lindane", "file": "us-epa-national-primary-drinking-water-regulations-lindane.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-lindane", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Lindane | 0.0002 | 0.0002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Lindane \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Mercury (inorganic)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Mercury (inorganic) | 0.002 | 0.002\n\nSource: \n", "contaminant": "Mercury (inorganic)", "file": "us-epa-national-primary-drinking-water-regulations-mercury-inorganic.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-mercury-inorganic", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Mercury (inorganic) | 0.002 | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Mercury (inorganic) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Methoxychlor\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.04\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Methoxychlor | 0.04 | 0.04\n\nSource: \n", "contaminant": "Methoxychlor", "file": "us-epa-national-primary-drinking-water-regulations-methoxychlor.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-methoxychlor", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.04", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Methoxychlor | 0.04 | 0.04", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Methoxychlor \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 1 (unitless) Hazard Index\n\n**Unit:** unitless\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS | 1 (unitless) Hazard Index | 1 (unitless) Hazard Index\n\nSource: \n", "contaminant": "Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS", "file": "us-epa-national-primary-drinking-water-regulations-mixtures-containing-two-or-more-of-pfhxs-pfna-hfpo-da-and-pfbs.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-mixtures-containing-two-or-more-of-pfhxs-pfna-hfpo-da-and-pfbs", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "unitless", "limit_value": "1 (unitless) Hazard Index", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS | 1 (unitless) Hazard Index | 1 (unitless) Hazard Index", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "Mixtures containing two or more of PFHxS, PFNA, HFPO-DA, and PFBS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrate (measured as Nitrogen)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 10\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Nitrate (measured as Nitrogen) | 10 | 10\n\nSource: \n", "contaminant": "Nitrate (measured as Nitrogen)", "file": "us-epa-national-primary-drinking-water-regulations-nitrate-measured-as-nitrogen.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-nitrate-measured-as-nitrogen", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "10", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Nitrate (measured as Nitrogen) | 10 | 10", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Nitrate (measured as Nitrogen) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Nitrite (measured as Nitrogen)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Nitrite (measured as Nitrogen) | 1 | 1\n\nSource: \n", "contaminant": "Nitrite (measured as Nitrogen)", "file": "us-epa-national-primary-drinking-water-regulations-nitrite-measured-as-nitrogen.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-nitrite-measured-as-nitrogen", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Nitrite (measured as Nitrogen) | 1 | 1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Nitrite (measured as Nitrogen) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** o-Dichlorobenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.6\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> o-Dichlorobenzene | 0.6 | 0.6\n\nSource: \n", "contaminant": "o-Dichlorobenzene", "file": "us-epa-national-primary-drinking-water-regulations-o-dichlorobenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-o-dichlorobenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.6", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "o-Dichlorobenzene | 0.6 | 0.6", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "o-Dichlorobenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Oxamyl (Vydate)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.2\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Oxamyl (Vydate) | 0.2 | 0.2\n\nSource: \n", "contaminant": "Oxamyl (Vydate)", "file": "us-epa-national-primary-drinking-water-regulations-oxamyl-vydate.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-oxamyl-vydate", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.2", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Oxamyl (Vydate) | 0.2 | 0.2", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Oxamyl (Vydate) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** p-Dichlorobenzene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.075\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> p-Dichlorobenzene | 0.075 | 0.075\n\nSource: \n", "contaminant": "p-Dichlorobenzene", "file": "us-epa-national-primary-drinking-water-regulations-p-dichlorobenzene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-p-dichlorobenzene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.075", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "p-Dichlorobenzene | 0.075 | 0.075", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "p-Dichlorobenzene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Pentachlorophenol\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.001\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Pentachlorophenol | zero | 0.001\n\nSource: \n", "contaminant": "Pentachlorophenol", "file": "us-epa-national-primary-drinking-water-regulations-pentachlorophenol.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pentachlorophenol", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.001", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Pentachlorophenol | zero | 0.001", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Pentachlorophenol \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFBS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** No individual MCL\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFBS | No individual MCLG | No individual MCL\n\nSource: \n", "contaminant": "PFBS", "file": "us-epa-national-primary-drinking-water-regulations-pfbs.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfbs", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "No individual MCL", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFBS | No individual MCLG | No individual MCL", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "PFBS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFHxS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 10 ppt\n\n**Unit:** ppt\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFHxS | 10 ppt | 10 ppt\n\nSource: \n", "contaminant": "PFHxS", "file": "us-epa-national-primary-drinking-water-regulations-pfhxs-2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfhxs-2", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ppt", "limit_value": "10 ppt", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFHxS | 10 ppt | 10 ppt", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "PFHxS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFHxS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.00001\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFHxS | 0.00001 | 0.00001\n\nSource: \n", "contaminant": "PFHxS", "file": "us-epa-national-primary-drinking-water-regulations-pfhxs.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfhxs", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.00001", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFHxS | 0.00001 | 0.00001", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "PFHxS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFNA\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 10 ppt\n\n**Unit:** ppt\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFNA | 10 ppt | 10 ppt\n\nSource: \n", "contaminant": "PFNA", "file": "us-epa-national-primary-drinking-water-regulations-pfna-2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfna-2", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ppt", "limit_value": "10 ppt", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFNA | 10 ppt | 10 ppt", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "PFNA \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFNA\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.00001\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFNA | 0.00001 | 0.00001\n\nSource: \n", "contaminant": "PFNA", "file": "us-epa-national-primary-drinking-water-regulations-pfna.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfna", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.00001", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFNA | 0.00001 | 0.00001", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "PFNA \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFOA\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 4.0 parts per trillion (ppt)\n\n**Unit:** ppt\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFOA | Zero | 4.0 parts per trillion (ppt) (also expressed as ng/L)\n\nSource: \n", "contaminant": "PFOA", "file": "us-epa-national-primary-drinking-water-regulations-pfoa-2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfoa-2", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ppt", "limit_value": "4.0 parts per trillion (ppt)", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFOA | Zero | 4.0 parts per trillion (ppt) (also expressed as ng/L)", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "PFOA \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFOA\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0000040\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFOA | zero | 0.0000040\n\nSource: \n", "contaminant": "PFOA", "file": "us-epa-national-primary-drinking-water-regulations-pfoa.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfoa", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0000040", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFOA | zero | 0.0000040", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "PFOA \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFOS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 4.0 ppt\n\n**Unit:** ppt\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFOS | Zero | 4.0 ppt\n\nSource: \n", "contaminant": "PFOS", "file": "us-epa-national-primary-drinking-water-regulations-pfos-2.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfos-2", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ppt", "limit_value": "4.0 ppt", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFOS | Zero | 4.0 ppt", "sources": ["https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas"], "stale_after": "2027-08-06", "title": "PFOS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** PFOS\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0000040\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> PFOS | zero | 0.0000040\n\nSource: \n", "contaminant": "PFOS", "file": "us-epa-national-primary-drinking-water-regulations-pfos.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-pfos", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0000040", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "PFOS | zero | 0.0000040", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "PFOS \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Picloram\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.5\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Picloram | 0.5 | 0.5\n\nSource: \n", "contaminant": "Picloram", "file": "us-epa-national-primary-drinking-water-regulations-picloram.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-picloram", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.5", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Picloram | 0.5 | 0.5", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Picloram \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Polychlorinated biphenyls (PCBs)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.0005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Polychlorinated biphenyls ( PCBs ) | zero | 0.0005\n\nSource: \n", "contaminant": "Polychlorinated biphenyls (PCBs)", "file": "us-epa-national-primary-drinking-water-regulations-polychlorinated-biphenyls-pcbs.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-polychlorinated-biphenyls-pcbs", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.0005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Polychlorinated biphenyls ( PCBs ) | zero | 0.0005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Polychlorinated biphenyls (PCBs) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Radium 226 and Radium 228 (combined)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 5 pCi/L\n\n**Unit:** pCi/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Radium 226 and Radium 228 (combined) | none ---------- zero | 5 pCi/L\n\nSource: \n", "contaminant": "Radium 226 and Radium 228 (combined)", "file": "us-epa-national-primary-drinking-water-regulations-radium-226-and-radium-228-combined.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-radium-226-and-radium-228-combined", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "pCi/L", "limit_value": "5 pCi/L", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Radium 226 and Radium 228 (combined) | none ---------- zero | 5 pCi/L", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Radium 226 and Radium 228 (combined) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Selenium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.05\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Selenium | 0.05 | 0.05\n\nSource: \n", "contaminant": "Selenium", "file": "us-epa-national-primary-drinking-water-regulations-selenium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-selenium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.05", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Selenium | 0.05 | 0.05", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Selenium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Simazine\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.004\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Simazine | 0.004 | 0.004\n\nSource: \n", "contaminant": "Simazine", "file": "us-epa-national-primary-drinking-water-regulations-simazine.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-simazine", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.004", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Simazine | 0.004 | 0.004", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Simazine \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Styrene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Styrene | 0.1 | 0.1\n\nSource: \n", "contaminant": "Styrene", "file": "us-epa-national-primary-drinking-water-regulations-styrene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-styrene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Styrene | 0.1 | 0.1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Styrene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Tetrachloroethylene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Tetrachloroethylene | zero | 0.005\n\nSource: \n", "contaminant": "Tetrachloroethylene", "file": "us-epa-national-primary-drinking-water-regulations-tetrachloroethylene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-tetrachloroethylene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Tetrachloroethylene | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Tetrachloroethylene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Thallium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Thallium | 0.0005 | 0.002\n\nSource: \n", "contaminant": "Thallium", "file": "us-epa-national-primary-drinking-water-regulations-thallium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-thallium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Thallium | 0.0005 | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Thallium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Toluene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Toluene | 1 | 1\n\nSource: \n", "contaminant": "Toluene", "file": "us-epa-national-primary-drinking-water-regulations-toluene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-toluene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Toluene | 1 | 1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Toluene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Total Coliforms (including fecal coliform and E. Coli)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 5.0%\n\n**Unit:** %\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> zero | 5.0% 4 | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present\n\nSource: \n", "contaminant": "Total Coliforms (including fecal coliform and E. Coli)", "file": "us-epa-national-primary-drinking-water-regulations-total-coliforms-including-fecal-coliform-and-e-coli.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-total-coliforms-including-fecal-coliform-and-e-coli", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "%", "limit_value": "5.0%", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "zero | 5.0% 4 | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Total Coliforms (including fecal coliform and E. Coli) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "contaminant", "verified": false} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Total Trihalomethanes (TTHMs)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.080\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Total Trihalomethanes ( TTHMs ) | n/a 6 | 0.080\n\nSource: \n", "contaminant": "Total Trihalomethanes (TTHMs)", "file": "us-epa-national-primary-drinking-water-regulations-total-trihalomethanes-tthms.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-total-trihalomethanes-tthms", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.080", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Total Trihalomethanes ( TTHMs ) | n/a 6 | 0.080", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Total Trihalomethanes (TTHMs) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Toxaphene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.003\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Toxaphene | zero | 0.003\n\nSource: \n", "contaminant": "Toxaphene", "file": "us-epa-national-primary-drinking-water-regulations-toxaphene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-toxaphene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.003", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Toxaphene | zero | 0.003", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Toxaphene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** trans-1,2-Dichloroethylene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.1\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> trans-1,2-Dichloroethylene | 0.1 | 0.1\n\nSource: \n", "contaminant": "trans-1,2-Dichloroethylene", "file": "us-epa-national-primary-drinking-water-regulations-trans-1-2-dichloroethylene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-trans-1-2-dichloroethylene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.1", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "trans-1,2-Dichloroethylene | 0.1 | 0.1", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "trans-1,2-Dichloroethylene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Trichloroethylene\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.005\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Trichloroethylene | zero | 0.005\n\nSource: \n", "contaminant": "Trichloroethylene", "file": "us-epa-national-primary-drinking-water-regulations-trichloroethylene.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-trichloroethylene", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.005", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Trichloroethylene | zero | 0.005", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Trichloroethylene \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Turbidity\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Turbidity | n/a | TT 3\n\nSource: \n", "contaminant": "Turbidity", "file": "us-epa-national-primary-drinking-water-regulations-turbidity.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-turbidity", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Turbidity | n/a | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Turbidity \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Uranium\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 30 ug/L as of 12/08/03\n\n**Unit:** ug/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Uranium | zero | 30 ug/L as of 12/08/03\n\nSource: \n", "contaminant": "Uranium", "file": "us-epa-national-primary-drinking-water-regulations-uranium.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-uranium", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "ug/L", "limit_value": "30 ug/L as of 12/08/03", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Uranium | zero | 30 ug/L as of 12/08/03", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Uranium \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Vinyl chloride\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 0.002\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Vinyl chloride | zero | 0.002\n\nSource: \n", "contaminant": "Vinyl chloride", "file": "us-epa-national-primary-drinking-water-regulations-vinyl-chloride.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-vinyl-chloride", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "0.002", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Vinyl chloride | zero | 0.002", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Vinyl chloride \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Viruses (enteric)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** TT\n\n**Limit type:** Treatment Technique\n\n> Viruses (enteric) | zero | TT 3\n\nSource: \n", "contaminant": "Viruses (enteric)", "file": "us-epa-national-primary-drinking-water-regulations-viruses-enteric.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-viruses-enteric", "limit_name": "Treatment Technique", "limit_value": "TT", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Viruses (enteric) | zero | TT 3", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Viruses (enteric) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name", "verified": true} {"asset": "drinking-water-contaminant-limits", "body": "**Contaminant:** Xylenes (total)\n\n**Regulator:** US EPA (National Primary Drinking Water Regulations)\n\n**Limit:** 10\n\n**Unit:** mg/L\n\n**Limit type:** MCL (Maximum Contaminant Level)\n\n> Xylenes (total) | 10 | 10\n\nSource: \n", "contaminant": "Xylenes (total)", "file": "us-epa-national-primary-drinking-water-regulations-xylenes-total.md", "generated": true, "harvested": "2026-08-06", "id": "us-epa-national-primary-drinking-water-regulations-xylenes-total", "limit_name": "MCL (Maximum Contaminant Level)", "limit_unit": "mg/L", "limit_value": "10", "regulator": "US EPA (National Primary Drinking Water Regulations)", "source_quote": "Xylenes (total) | 10 | 10", "sources": ["https://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations"], "stale_after": "2027-08-06", "title": "Xylenes (total) \u2014 Drinking water contaminant limits by regulator", "type": "threshold", "unverified_fields": "limit_name, limit_unit", "verified": true}