{
 "name": "commercialdrainagequotes.co.uk UK Trade Effluent and Drainage Charges",
 "title": "UK Trade Effluent and Drainage Charges",
 "url": "https://commercialdrainagequotes.co.uk/datasets/uk-trade-effluent-and-drainage-charges/",
 "csv": "https://commercialdrainagequotes.co.uk/datasets/uk-trade-effluent-and-drainage-charges.csv",
 "markdown": "https://commercialdrainagequotes.co.uk/datasets/uk-trade-effluent-and-drainage-charges/index.md",
 "computed_at": "2026-10-18",
 "license": "https://commercialdrainagequotes.co.uk/terms",
 "headline": "The UK Trade Effluent and Drainage Charges carries 4 published figures read from 2 sources' own pages, from 36.83 to 154.68 GBP, read 11 September 2026.",
 "quotes": [
  "The UK Trade Effluent and Drainage Charges carries 4 published figures read from 2 sources' own pages, from 36.83 to 154.68 GBP, read 11 September 2026.",
  "2 of the 17 named sources read in full publish a figure; 15 publish none, read 11 September 2026.",
  "UK Trade Effluent and Drainage Charges, charge type sewerage standing charge (metered): median 48.99 GBP across 2 sources, read 11 September 2026.",
  "UK Trade Effluent and Drainage Charges, charge type sewerage standing charge (rateable value): median 154.68 GBP across 1 source, read 11 September 2026.",
  "UK Trade Effluent and Drainage Charges, charge type surface water drainage: median 85.47 GBP across 1 source, read 11 September 2026."
 ],
 "citation": "\"commercialdrainagequotes.co.uk UK Trade Effluent and Drainage Charges\", updated 2026-10-18, https://commercialdrainagequotes.co.uk/datasets/uk-trade-effluent-and-drainage-charges/.",
 "changed_since": null,
 "national": {
  "unit": "GBP",
  "n": 4,
  "median": 73.315,
  "min": 36.83,
  "max": 154.68,
  "p25": 42.912499999999994,
  "p75": 137.3775,
  "mean": 84.535,
  "units": {
   "GBP": 4
  },
  "published_sources": 2,
  "named_sources": 18,
  "read_sources": 17,
  "not_published": 15,
  "published_share": 0.118
 },
 "by_axis": {
  "charge type": {
   "sewerage standing charge (metered)": {
    "GBP": {
     "n": 2,
     "median": 48.995,
     "min": 36.83,
     "max": 61.16,
     "p25": null,
     "p75": null,
     "mean": 48.995
    }
   },
   "sewerage standing charge (rateable value)": {
    "GBP": {
     "n": 1,
     "median": 154.68,
     "min": 154.68,
     "max": 154.68,
     "p25": 154.68,
     "p75": 154.68,
     "mean": 154.68
    }
   },
   "surface water drainage": {
    "GBP": {
     "n": 1,
     "median": 85.47,
     "min": 85.47,
     "max": 85.47,
     "p25": 85.47,
     "p75": 85.47,
     "mean": 85.47
    }
   }
  }
 },
 "rows": [
  {
   "source": "Northumbrian Water tariffs and charges",
   "url": "https://www.nwl.co.uk/tariffsandcharges",
   "figure": "£61.16 ",
   "value": 61.16,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "charge type": "sewerage standing charge (metered)"
   },
   "retrieved_at": "2026-09-11",
   "quote": "Fixed charge + Price per cubic metre £61.16 + £1.6169",
   "source_class": "first-party-index",
   "text_sha256": "e9415a631d4355766fcf0971e3f171390ce546002b814e5758aaba86928aeac5"
  },
  {
   "source": "Northumbrian Water tariffs and charges",
   "url": "https://www.nwl.co.uk/tariffsandcharges",
   "figure": "£154.68 ",
   "value": 154.68,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "charge type": "sewerage standing charge (rateable value)"
   },
   "retrieved_at": "2026-09-11",
   "quote": "Fixed charge + Price per £ of RV £154.68 + £0.8905",
   "source_class": "first-party-index",
   "text_sha256": "e9415a631d4355766fcf0971e3f171390ce546002b814e5758aaba86928aeac5"
  },
  {
   "source": "Yorkshire Water, charges for customers without a meter",
   "url": "https://www.yorkshirewater.com/bill-account/how-we-work-out-your-bill/customers-without-a-meter/",
   "figure": "£36.83",
   "value": 36.83,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "charge type": "sewerage standing charge (metered)"
   },
   "retrieved_at": "2026-09-11",
   "quote": "Sewerage £36.83",
   "source_class": "first-party-index",
   "text_sha256": "783dc44651ef3f66b6593722f8b746516b2e7ab3e19602ff6662d5f9d0c646f3"
  },
  {
   "source": "Yorkshire Water, charges for customers without a meter",
   "url": "https://www.yorkshirewater.com/bill-account/how-we-work-out-your-bill/customers-without-a-meter/",
   "figure": "£85.47",
   "value": 85.47,
   "unit": "GBP",
   "vat": null,
   "axis": {
    "charge type": "surface water drainage"
   },
   "retrieved_at": "2026-09-11",
   "quote": "Surface water charge £85.47",
   "source_class": "first-party-index",
   "text_sha256": "783dc44651ef3f66b6593722f8b746516b2e7ab3e19602ff6662d5f9d0c646f3"
  }
 ],
 "not_published": [
  {
   "source": "United Utilities surface water drainage",
   "url": "https://www.unitedutilities.com/help-and-support/wastewater-services/surface-water-drainage/",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Yorkshire Water surface water drainage",
   "url": "https://www.yorkshirewater.com/bill-account/how-we-work-out-your-bill/surface-water-drainage/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "NI Water trade effluent charges",
   "url": "https://www.niwater.com/your-bill-and-our-charges/non-domestic-charges/trade-effluent-charges",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "NI Water non-domestic charges",
   "url": "https://www.niwater.com/your-bill-and-our-charges/non-domestic-charges/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Thames Water wholesale charges",
   "url": "https://www.thameswater.co.uk/wholesale/our-charges",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Thames Water, changes to our charges (FAQ)",
   "url": "https://www.thameswater.co.uk/wholesale/non-household-customers/changes-to-our-charges/wholesale-charges-frequently-asked-questions",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Thames Water wholesale document library",
   "url": "https://www.thameswater.co.uk/wholesale/document-library",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Dwr Cymru Welsh Water wholesale charges document",
   "url": "https://corporate.dwrcymru.com/en/library/our-charges/wholesale-charges-document",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Dwr Cymru Welsh Water scheme of charges",
   "url": "https://corporate.dwrcymru.com/en/library/our-charges/scheme-of-charges",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Hafren Dyfrdwy tariffs and charges",
   "url": "https://www.hdcymru.co.uk/businesses-and-retailers/charges/tariffs-and-charges/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Wessex Water our charges",
   "url": "https://corporate.wessexwater.co.uk/our-performance/our-charges",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ofwat, charges",
   "url": "https://www.ofwat.gov.uk/regulated-companies/charges/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Ofwat, charging compliance requirements",
   "url": "https://www.ofwat.gov.uk/regulated-companies/company-obligations/ofwat-regulating-the-industry-compliance-requirements-charging/",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Water2Business, trade effluent charges",
   "url": "https://www.water2business.co.uk/help-and-support/trade-effluent/charges",
   "retrieved_at": "2026-09-11",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Wave Utilities, guide to trade effluent",
   "url": "https://www.wave-utilities.co.uk/advice-guidance/guide/guide-trade-effluent-te",
   "retrieved_at": "2026-09-11",
   "reason": "read in full and no accepted figure on the page"
  }
 ],
 "sources": [
  {
   "url": "https://www.nwl.co.uk/tariffsandcharges",
   "label": "Northumbrian Water tariffs and charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.unitedutilities.com/help-and-support/wastewater-services/surface-water-drainage/",
   "label": "United Utilities surface water drainage",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.yorkshirewater.com/bill-account/how-we-work-out-your-bill/surface-water-drainage/",
   "label": "Yorkshire Water surface water drainage",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.yorkshirewater.com/bill-account/how-we-work-out-your-bill/customers-without-a-meter/",
   "label": "Yorkshire Water, charges for customers without a meter",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.niwater.com/your-bill-and-our-charges/non-domestic-charges/trade-effluent-charges",
   "label": "NI Water trade effluent charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.niwater.com/your-bill-and-our-charges/non-domestic-charges/",
   "label": "NI Water non-domestic charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.thameswater.co.uk/wholesale/our-charges",
   "label": "Thames Water wholesale charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.thameswater.co.uk/wholesale/non-household-customers/changes-to-our-charges/wholesale-charges-frequently-asked-questions",
   "label": "Thames Water, changes to our charges (FAQ)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.thameswater.co.uk/wholesale/document-library",
   "label": "Thames Water wholesale document library",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://corporate.dwrcymru.com/en/library/our-charges/wholesale-charges-document",
   "label": "Dwr Cymru Welsh Water wholesale charges document",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://corporate.dwrcymru.com/en/library/our-charges/scheme-of-charges",
   "label": "Dwr Cymru Welsh Water scheme of charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.hdcymru.co.uk/businesses-and-retailers/charges/tariffs-and-charges/",
   "label": "Hafren Dyfrdwy tariffs and charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://corporate.wessexwater.co.uk/our-performance/our-charges",
   "label": "Wessex Water our charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ofwat.gov.uk/regulated-companies/charges/",
   "label": "Ofwat, charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.ofwat.gov.uk/regulated-companies/company-obligations/ofwat-regulating-the-industry-compliance-requirements-charging/",
   "label": "Ofwat, charging compliance requirements",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.southernwater.co.uk/commercial/trade-effluent-businesses/trade-effluent-charges/",
   "label": "Southern Water trade effluent charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.water2business.co.uk/help-and-support/trade-effluent/charges",
   "label": "Water2Business, trade effluent charges",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wave-utilities.co.uk/advice-guidance/guide/guide-trade-effluent-te",
   "label": "Wave Utilities, guide to trade effluent",
   "license": "the publisher's own terms; quoted for reporting and comment"
  }
 ],
 "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 2 of the 17 named sources that could be read published a usable figure; 15 published none and are recorded as not published, never filled in; 1 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source for each breakdown it prices, in GBP (a source's median where its page yielded several accepted sentences for one breakdown), so a page that gives figures for several breakdowns gives one for each and N counts 4 figures, never sentences; 13 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): one row per sewerage undertaker per charge: the Mogden coefficients for trade effluent, the surface water and highway drainage rate by site-area band, the return-to-sewer assumption and the standing charge, each quoted from that undertaker's own scheme with its charging year; the derivation is what the SAME discharge costs across thirteen undertakers and how that has moved year on year - a comparison no undertaker makes and the regulator does not publish in one place",
 "embed": "<figure style=\"margin:0;padding:16px;border:1px solid #d9d9d9;border-radius:8px;background:#ffffff;color:#111111;font-family:system-ui,sans-serif;max-width:480px\"><p style=\"margin:0 0 8px;font-size:28px;font-weight:700;color:#111111;background:#ffffff\">36.83 to 154.68 GBP</p><p style=\"margin:0 0 8px;font-size:14px;color:#111111;background:#ffffff\">4 published figures, UK Trade Effluent and Drainage Charges, across 2 sources, read 11 September 2026</p><figcaption style=\"font-size:12px;color:#444444;background:#ffffff\"><a href=\"https://commercialdrainagequotes.co.uk/datasets/uk-trade-effluent-and-drainage-charges/#median\" style=\"color:#1a4fd6;background:#ffffff\">Source: commercialdrainagequotes.co.uk UK Trade Effluent and Drainage Charges</a></figcaption></figure>"
}
