{
 "name": "Asbestos Survey Cost Well Water Treatment System Index",
 "title": "Well Water Treatment System Index",
 "url": "https://asbestossurveycost.co.uk/datasets/well-water-treatment-system-index/",
 "csv": "https://asbestossurveycost.co.uk/datasets/well-water-treatment-system-index.csv",
 "markdown": "https://asbestossurveycost.co.uk/datasets/well-water-treatment-system-index/index.md",
 "computed_at": "2026-09-15",
 "license": "https://asbestossurveycost.co.uk/terms",
 "headline": "The median published figure in the Well Water Treatment System Index is 1,024.49 USD across 4 sources' own pages in USD (range 995 to 2,969 USD; 5 sources publish a figure), read 15 September 2026.",
 "quotes": [
  "The median published figure in the Well Water Treatment System Index is 1,024.49 USD across 4 sources' own pages in USD (range 995 to 2,969 USD; 5 sources publish a figure), read 15 September 2026.",
  "5 of the 37 named sources read in full publish a figure; 32 publish none, read 15 September 2026.",
  "Well Water Treatment System Index, market US: median 1,024.49 USD across 4 sources, read 15 September 2026.",
  "Well Water Treatment System Index, market GB: median 519 GBP across 1 source, read 15 September 2026."
 ],
 "citation": "\"Asbestos Survey Cost Well Water Treatment System Index\", updated 2026-09-15, https://asbestossurveycost.co.uk/datasets/well-water-treatment-system-index/.",
 "changed_since": null,
 "national": {
  "unit": "USD",
  "n": 4,
  "median": 1024.495,
  "min": 995,
  "max": 2969,
  "p25": 996.2475,
  "p75": 2489,
  "mean": 1503.2475,
  "units": {
   "GBP": 1,
   "USD": 4
  },
  "published_sources": 5,
  "named_sources": 38,
  "read_sources": 37,
  "not_published": 32,
  "published_share": 0.135
 },
 "by_axis": {
  "market": {
   "US": {
    "USD": {
     "n": 4,
     "median": 1024.495,
     "min": 995,
     "max": 2969,
     "p25": 996.2475,
     "p75": 2489,
     "mean": 1503.2475
    }
   },
   "GB": {
    "GBP": {
     "n": 1,
     "median": 519,
     "min": 519,
     "max": 519,
     "p25": 519,
     "p75": 519,
     "mean": 519
    }
   }
  }
 },
 "rows": [
  {
   "source": "Mid Atlantic Water UV disinfection systems",
   "url": "https://midatlanticwater.net/collections/ultraviolet-uv-water-disinfection-systems",
   "figure": "$995.00",
   "value": 995,
   "unit": "USD",
   "axis": {
    "market": "US"
   },
   "retrieved_at": "2026-09-12",
   "quote": "From $995.00",
   "source_class": "primary-provider-own-site",
   "text_sha256": "775252f7f55938efe2bc436edbb19607ed856ba4bc50e1d61fc94f47550dd3ae"
  },
  {
   "source": "Bluonics 110W whole house UV and filtration system",
   "url": "https://www.bluonics.com/products/well-water-uv-ultraviolet-110w-triple-big-blue-20inch-sediment-carbon-filter-purifier-system-high-flow-treat-virus-bacteria",
   "figure": "$1,049.00",
   "value": 1049,
   "unit": "USD",
   "axis": {
    "market": "US"
   },
   "retrieved_at": "2026-09-12",
   "quote": "Regular price $1,049.00",
   "source_class": "primary-provider-own-site",
   "text_sha256": "2d97ce6fd0b9cc1c73d5569e61ba6d068e99bde8fb960311b997511cde1560f7"
  },
  {
   "source": "Aquasure Quantum 18 GPM UV whole house system",
   "url": "https://aquasureusa.com/products/aquasure-quantum-series-18-gpm-multi-stage-uv-ultraviolet-whole-house-water-treatment-deactivator-filtration-system-110-volt-48-watt",
   "figure": "$999.99",
   "value": 999.99,
   "unit": "USD",
   "axis": {
    "market": "US"
   },
   "retrieved_at": "2026-09-12",
   "quote": "Regular price $999.99",
   "source_class": "primary-provider-own-site",
   "text_sha256": "638e0d65790291766633f2d69ea99d02ff7df9e0bf275cad98f3ea694389c63a"
  },
  {
   "source": "Crystal Quest 60 GPM UV sterilizer",
   "url": "https://crystalquest.com/products/ultraviolet-water-sterilizer-system-60",
   "figure": "$2,969.00",
   "value": 2969,
   "unit": "USD",
   "axis": {
    "market": "US"
   },
   "retrieved_at": "2026-09-12",
   "quote": "Regular price $2,969.00",
   "source_class": "primary-provider-own-site",
   "text_sha256": "efee5fd57f8fc7631ad3e3c556a1a0fdf20f9da609aaa8d45141be14bb4f244a"
  },
  {
   "source": "Freeflush ultraviolet treatment systems (GB)",
   "url": "https://www.freeflush.co.uk/collections/ultraviolet-uv-treatment-systems",
   "figure": "£519.00 ",
   "value": 519,
   "unit": "GBP",
   "axis": {
    "market": "GB"
   },
   "retrieved_at": "2026-09-12",
   "quote": "From £519.00 £869.00",
   "source_class": "primary-provider-own-site",
   "text_sha256": "5dd2633dedb78fc7ca3a5ce1c03a2fbd55e825224a48973953c3b7461c98df1c"
  }
 ],
 "not_published": [
  {
   "source": "SpringWell whole house well water iron filter",
   "url": "https://www.springwellwater.com/product/well-water/whole-house-iron-filter/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "SpringWell well water filter and salt based softener",
   "url": "https://www.springwellwater.com/product/well-water/well-water-filter-and-salt-based-water-softener/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "SpringWell salt based water softener",
   "url": "https://www.springwellwater.com/product/water-softeners/salt-water-softeners/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "SpringWell chemical injection system",
   "url": "https://www.springwellwater.com/product/well-water/chemical-injection-system/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "SpringWell shop index",
   "url": "https://www.springwellwater.com/shop/",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "US Water Systems, home well water iron and sulfur systems",
   "url": "https://uswatersystems.com/collections/for-home-well-water-whole-house-iron-and-sulfur-systems",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "US Water Systems Pulsar UV disinfection 10-20 GPM",
   "url": "https://uswatersystems.com/products/pulsar-ultraviolet-disinfection-system-10-20-gpm",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "US Water Systems 50-100 GPM UV systems",
   "url": "https://uswatersystems.com/collections/50-100-gpm",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "US Water Systems Polaris commercial UV",
   "url": "https://uswatersystems.com/collections/for-business-commercial-ultraviolet-polaris-commercial-uv-systems",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Crystal Quest well water filtration systems",
   "url": "https://crystalquest.com/pages/well-water-filtration-systems",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Mid Atlantic Water iron and sulphur removal filters",
   "url": "https://midatlanticwater.net/collections/iron-sulfur-removal-filters-for-well-water",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Mid Atlantic Water UV system cost guide",
   "url": "https://midatlanticwater.net/blogs/faqs/uv-water-treatment-system-cost",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Mid Atlantic Water arsenic filters",
   "url": "https://midatlanticwater.net/collections/arsenic-filters",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "RKIN whole house well water filter for iron, sulfur, manganese",
   "url": "https://rkin.com/products/rkin-whole-house-well-water-filter-system-for-iron-sulfur-and-manganese-treatment",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Aquatell whole house iron filters",
   "url": "https://www.aquatell.com/collections/whole-house-iron-filters",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Water Filters of America well water chlorination carbon system",
   "url": "https://waterfiltersofamerica.com/well-water-chlorination-carbon-system-chemical-feeder-water-softener-kill-bacteria-home-buy/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Water Filters of America chlorine injection pump",
   "url": "https://waterfiltersofamerica.com/chlorine-injection-pump-chlorine-injection-system-buy-well-water-home/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Raindance Water Systems chemical feed pump systems",
   "url": "https://www.raindancewatersystems.com/feedpump.html",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Aquasana whole house water filters",
   "url": "https://www.aquasana.com/whole-house-water-filters",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Aqua Home Supply commercial UV systems",
   "url": "https://aquahomesupply.com/collections/commercial-uv-water-treatment-systems",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "WECO CJECT-100MT proportional chlorine injection system",
   "url": "https://www.wecofilters.com/cject-100mt.html",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Aqua Cure UV sterilisers (GB)",
   "url": "https://www.aquacure.co.uk/products/uv-sterilisers",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Aqua Cure UV water treatment systems (GB)",
   "url": "https://www.aquacure.co.uk/products/uv-sterilisers/uv-water-treatment-systems",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "UK Water Filters ultraviolet sterilisation (GB)",
   "url": "https://www.uk-water-filters.co.uk/pages/ultra-violet-sterilisation",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "UV Water Filter UK borehole water treatment",
   "url": "https://uvwaterfilter.co.uk/uv-water-treatment/borehole-water-treatment/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "Springhill Water private water supplies UV disinfection (GB)",
   "url": "https://privatewatersupplies.org.uk/uv-disinfection/",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "US EPA, protect your home's water (private wells)",
   "url": "https://www.epa.gov/privatewells/protect-your-homes-water",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Massachusetts DPH, arsenic in private well water FAQs",
   "url": "https://www.mass.gov/info-details/arsenic-in-private-well-water-faqs",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "NSF certified drinking water treatment units listing",
   "url": "https://info.nsf.org/certified/dwtu/",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "NSF certified products and systems",
   "url": "https://listings.nsf.org/",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  },
  {
   "source": "Water Filter Guru, best whole house filters for well water",
   "url": "https://waterfilterguru.com/best-whole-house-water-filter-for-well-water/",
   "retrieved_at": "2026-09-12",
   "reason": "every candidate on the page was refused"
  },
  {
   "source": "info.nsf.org",
   "url": "https://info.nsf.org/certified/dwtu/",
   "retrieved_at": "2026-09-12",
   "reason": "read in full and no accepted figure on the page"
  }
 ],
 "sources": [
  {
   "url": "https://www.springwellwater.com/product/well-water/whole-house-iron-filter/",
   "label": "SpringWell whole house well water iron filter",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.springwellwater.com/product/well-water/well-water-filter-and-salt-based-water-softener/",
   "label": "SpringWell well water filter and salt based softener",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.springwellwater.com/product/water-softeners/salt-water-softeners/",
   "label": "SpringWell salt based water softener",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.springwellwater.com/product/well-water/chemical-injection-system/",
   "label": "SpringWell chemical injection system",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.springwellwater.com/shop/",
   "label": "SpringWell shop index",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://uswatersystems.com/collections/for-home-well-water-whole-house-iron-and-sulfur-systems",
   "label": "US Water Systems, home well water iron and sulfur systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://uswatersystems.com/products/pulsar-ultraviolet-disinfection-system-10-20-gpm",
   "label": "US Water Systems Pulsar UV disinfection 10-20 GPM",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://uswatersystems.com/collections/50-100-gpm",
   "label": "US Water Systems 50-100 GPM UV systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://uswatersystems.com/collections/for-business-commercial-ultraviolet-polaris-commercial-uv-systems",
   "label": "US Water Systems Polaris commercial UV",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://crystalquest.com/pages/well-water-filtration-systems",
   "label": "Crystal Quest well water filtration systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://crystalquest.com/products/ultraviolet-water-sterilizer-system-60",
   "label": "Crystal Quest 60 GPM UV sterilizer",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://midatlanticwater.net/collections/iron-sulfur-removal-filters-for-well-water",
   "label": "Mid Atlantic Water iron and sulphur removal filters",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://midatlanticwater.net/collections/ultraviolet-uv-water-disinfection-systems",
   "label": "Mid Atlantic Water UV disinfection systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://midatlanticwater.net/blogs/faqs/uv-water-treatment-system-cost",
   "label": "Mid Atlantic Water UV system cost guide",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://midatlanticwater.net/collections/arsenic-filters",
   "label": "Mid Atlantic Water arsenic filters",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://rkin.com/products/rkin-whole-house-well-water-filter-system-for-iron-sulfur-and-manganese-treatment",
   "label": "RKIN whole house well water filter for iron, sulfur, manganese",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.aquatell.com/collections/whole-house-iron-filters",
   "label": "Aquatell whole house iron filters",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://waterfiltersofamerica.com/well-water-chlorination-carbon-system-chemical-feeder-water-softener-kill-bacteria-home-buy/",
   "label": "Water Filters of America well water chlorination carbon system",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://waterfiltersofamerica.com/chlorine-injection-pump-chlorine-injection-system-buy-well-water-home/",
   "label": "Water Filters of America chlorine injection pump",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.raindancewatersystems.com/feedpump.html",
   "label": "Raindance Water Systems chemical feed pump systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.bluonics.com/products/well-water-uv-ultraviolet-110w-triple-big-blue-20inch-sediment-carbon-filter-purifier-system-high-flow-treat-virus-bacteria",
   "label": "Bluonics 110W whole house UV and filtration system",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://aquasureusa.com/products/aquasure-quantum-series-18-gpm-multi-stage-uv-ultraviolet-whole-house-water-treatment-deactivator-filtration-system-110-volt-48-watt",
   "label": "Aquasure Quantum 18 GPM UV whole house system",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.aquasana.com/whole-house-water-filters",
   "label": "Aquasana whole house water filters",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://aquahomesupply.com/collections/commercial-uv-water-treatment-systems",
   "label": "Aqua Home Supply commercial UV systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.wecofilters.com/cject-100mt.html",
   "label": "WECO CJECT-100MT proportional chlorine injection system",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.freeflush.co.uk/collections/ultraviolet-uv-treatment-systems",
   "label": "Freeflush ultraviolet treatment systems (GB)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.aquacure.co.uk/products/uv-sterilisers",
   "label": "Aqua Cure UV sterilisers (GB)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.aquacure.co.uk/products/uv-sterilisers/uv-water-treatment-systems",
   "label": "Aqua Cure UV water treatment systems (GB)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.uk-water-filters.co.uk/pages/ultra-violet-sterilisation",
   "label": "UK Water Filters ultraviolet sterilisation (GB)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://uvwaterfilter.co.uk/uv-water-treatment/borehole-water-treatment/",
   "label": "UV Water Filter UK borehole water treatment",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://privatewatersupplies.org.uk/uv-disinfection/",
   "label": "Springhill Water private water supplies UV disinfection (GB)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.epa.gov/privatewells/protect-your-homes-water",
   "label": "US EPA, protect your home's water (private wells)",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.mass.gov/info-details/arsenic-in-private-well-water-faqs",
   "label": "Massachusetts DPH, arsenic in private well water FAQs",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://info.nsf.org/certified/dwtu/",
   "label": "NSF certified drinking water treatment units listing",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://listings.nsf.org/",
   "label": "NSF certified products and systems",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://waterfilterguru.com/best-whole-house-water-filter-for-well-water/",
   "label": "Water Filter Guru, best whole house filters for well water",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://info.nsf.org/certified/dwtu/",
   "label": "info.nsf.org",
   "license": "the publisher's own terms; quoted for reporting and comment"
  },
  {
   "url": "https://www.google.com/search?q=well+water+treatment+system+price",
   "label": "google.com",
   "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 the estate's 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). 5 of the 37 named sources that could be read published a usable figure; 32 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 in USD (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 193 candidate sentence(s) were refused by a reviewer with the reason recorded. Derivation as chartered: the median, minimum and maximum advertised price per treatment type per flow-rate band (GPM) across every manufacturer and direct seller that publishes one, with the annual consumable cost (UV lamp, media rebed, salt) beside the capital price so the five-year cost is the figure nobody publishes; the share of the market publishing a price versus dealer-quote-only (Culligan, Kinetico and the dealer channel are the quote-only half); the NSF/ANSI certification each priced model holds; and the same index read in GB pounds for private supplies and boreholes, giving the GB-US gap per treatment type.",
 "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\">1,024.49 USD</p><p style=\"margin:0 0 8px;font-size:14px;color:#111111;background:#ffffff\">median published figure, Well Water Treatment System Index, across 5 sources, read 15 September 2026</p><figcaption style=\"font-size:12px;color:#444444;background:#ffffff\"><a href=\"https://asbestossurveycost.co.uk/datasets/well-water-treatment-system-index/#median\" style=\"color:#1a4fd6;background:#ffffff\">Source: Asbestos Survey Cost Well Water Treatment System Index</a></figcaption></figure>"
}
