{
  "url": "https://openlegislation.uk/draft-public-water-supplies-scotland-amendment-regulations-2022/schedule-1",
  "json_url": "https://openlegislation.uk/draft-public-water-supplies-scotland-amendment-regulations-2022/schedule-1.json",
  "legislation": "sdsi/2022/9780111055663",
  "legislation_title": "The Public Water Supplies (Scotland) Amendment Regulations 2022",
  "legislation_url": "https://openlegislation.uk/draft-public-water-supplies-scotland-amendment-regulations-2022",
  "path": "schedule/1",
  "kind": "schedule",
  "number": "1",
  "heading": "SUBSTITUTION OF TABLE B IN SCHEDULE 1 OF THE 2014 REGULATIONS",
  "text": "“\nTABLE B\nCHEMICAL PARAMETERS\n(1)\n(2)\n(3)\n(4)\n(5)\n(6)\nItem\nParameter\nConcentrat-ion or value (maximum)\nUnits of measurement\nPoint of compliance\nNotes\nNotes—\nNote 1: The parametric value of 0.10 μg/l refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water.\nNote 2: A parametric value of 2.4 mgB/l must be applied when desalinated water is the predominant water source of the supply system concerned or in regions where geological conditions could lead to high levels of boron in groundwater.\nNote 3: A parametric value of 0.70 mg/l must be applied where a disinfection method that generates this parameter, in particular chlorine dioxide, is used for disinfection of water intended for human consumption. This parametric value applies only if such disinfection methods are used.\nNote 4: This parameter must be measured only when disinfection methods that can generate HAAs are used for the disinfection of water intended for human consumption.\nNote 5: This parameter must be measured only in the event of potential blooms in source water (increasing cyanobacterial cell density or bloom forming potential).\nNote 6: See also regulation 4(2)(c).\nNote 7: The corresponding parametric value applies to each “other pesticide” individually.\nNote 8: A parametric value of 30 μg/l must be applied for regions where geological conditions could lead to high levels of selenium in groundwater.\nNote 9: The sum of concentrations of these two parameters.\nNote 10: The parametric value of 0.50 μg/l refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water.\nPart 1\n1.\nAcrylamide\n0.10\nμg/l\nConsumer’s tap\nNote 1\n2.\nAntimony\n10\nμgSb/l\nConsumer’s tap\n3.\nArsenic\n10\nμgAs/l\nConsumer’s tap\n4.\nBenzene\n1.0\nμg/l\nConsumer’s tap\n5.\nBenzo(a)pyrene\n0.010\nμg/l\nConsumer’s tap\n6.\nBisphenol A\n2.5\nμg/l\nConsumer’s tap\n7.\nBoron\n1.5\nmgB/l\nConsumer’s tap\nNote 2\n8.\nBromate\n10\nμgBrO3/l\nConsumer’s tap\n9.\nCadmium\n5.0\nμgCd/l\nConsumer’s tap\n10.\nChlorate\n0.25\nmg/l\nConsumer’s tap\nNote 3\n11.\nChlorite\n0.25\nmg/l\nConsumer’s tap\nNote 3\n12.\nChromium\n50\nμgCr/l\nConsumer’s tap\n13.\nCopper\n2.0\nmgCu/l\nConsumer’s tap\n14.\nCyanide\n50\nμgCN/l\nConsumer’s tap\n15.\n1,2-dichloroethane\n3.0\nμg/l\nConsumer’s tap\n16.\nEpichlorohydrin\n0.10\nμg/l\nConsumer’s tap\nNote 1\n17.\nFluoride\n1.5\nmgF/l\nConsumer’s tap\n18.\nHAAs\n60\nμg/l\nConsumer’s tap\nNote 4\n19.\nLead\n10\nμgPb/l\nConsumer’s tap\n20.\nMercury\n1.0\nμgHg/l\nConsumer’s tap\n21.\nMicrocystin-LR\n1.0\nμg/l\nConsumer’s tap\nNote 5\n22.\nNickel\n20\nμgNi/l\nConsumer’s tap\n23.\nNitrate\n50\nmgNO3/l\nConsumer’s tap\nNote 6\n24.\nNitrite\n0.50\nmgNO2/l\nConsumer’s tap\nNote 6\n0.10\nmgNO2/l\nTreatment works\n25.\nPesticides—\nAldrin\n0.030\nμg/l\nConsumer’s tap\nDieldrin\n0.030\nμg/l\nConsumer’s tap\nHeptachlor\n0.030\nμg/l\nConsumer’s tap\nHeptachlor epoxide\n0.030\nμg/l\nConsumers’ tap\nOther pesticide\n0.10\nμg/l\nConsumer’s tap\nNote 7\n26.\nPesticides: total\n0.50\nμg/l\nConsumer’s tap\n27.\nSum of PFAS\n0.1\nμg/l\nConsumer’s tap\n28.\nPAH Total\n0.10\nμg/l\nConsumer’s tap\n29.\nSelenium\n20\nμgSe/l\nConsumer’s tap\nNote 8\n30.\nTetrachloroethene and trichloroethene\n10\nμg/l\nConsumer’s tap\nNote 9\n31.\nTHM: Total\n100\nμg/l\nConsumer’s tap\n32.\nUranium\n30\nμg/l\nConsumer’s tap\n33.\nVinyl chloride\n0.50\nμg/l\nNote 10\nPart 2\n34.\nAluminium\n200\nμgAl/l\nConsumer’s tap\n35.\nColour\n20\nmg/1 Pt/Co\nConsumer’s tap\n36.\nIron\n200\nμgFe/l\nConsumer’s tap\n37.\nManganese\n50\nμgMn/l\nConsumer’s tap\n38.\nSodium\n200\nmgNa/1\nConsumer’s tap\n39.\nTetrachlorometh-ane\n3\nμg/l\nConsumer’s tap\n40.\nTurbidity\n4\nNTU\nConsumer’s tap\n”",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/sdsi/2022/9780111055663/schedule/1",
    "retrieved_at": "2026-10-30T15:30:05.417173+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}