Source: https://tendernation.io/opportunities/01a13c13-77ce-722d-84cb-858f2c5eb859/chlorate-in-drinking-water awarded GB open procedure # Chlorate in Drinking Water [Defra Network eTendering Portal](https://tendernation.io/buyers/defra-network-etendering-portal) Often single bidder Estimated value £136,870 Published 9 Dec 2016 Deadline Closed 13 Jan 2017 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender - Contact water companies in England and Wales and obtain information to determine the number of treatment work sites which operate using calcium hypochlorite, sodium hypochlorite, chlorine dioxide or OSEC compared to traditional chlorine gas. - Contact and obtain from water companies in England and Wales operational data sets for chlorate in treated waters and other relevant supplementary information such as source water type being treated, type of disinfection used and dose. - Devise and conduct a monitoring programme, working with water companies in England and Wales, to enable the determination of chlorate in final waters at treatment works using calcium hypochlorite, sodium hypochlorite, chlorine dioxide and OSEC as the disinfection type. ## CPV classification Hypochlorites and chlorates Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/940a8dfd-0b39-4751-91a9-b118ec81f671) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Defra Network eTendering Portal: past awards and live tenders](https://tendernation.io/buyers/defra-network-etendering-portal) [Sector More Chemical products tenders](https://tendernation.io/sectors/chemical-products) ## More tenders like this [Insecticides – Fourniture de produits insecticides, rodenticides et de matériels pour application · Ville de Paris - DFA- SDA · 36 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a15183-44dd-7086-bd8c-4e503f7f91c0/france-insecticides-fourniture-de-produits-insecticides-rodenticides-et-de) [Basic inorganic and organic chemicals – Specifične kemikalije za potrebe PMF-a · Sveučilište U Zagrebu Prirodoslovno-Matematički Fakultet · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-4359-72b5-9962-0355989b2da3/croatia-basic-inorganic-and-organic-chemicals-specificne-kemikalije-za-potre) [Water-treatment chemicals – fornitura DI reagenti chimici PER GLI impianti DI depurazione acque reflue NEL perimetro della provincia DI pavia, comprensiva DI trasporto E consegna, suddivisa in 2 lotti · Pavia Acque S.C.A R.L. · 17 days left · 5 Nov 2026](https://tendernation.io/opportunities/01a15183-0af7-7097-92d7-3a8e250ff949/italy-water-treatment-chemicals-fornitura-di-reagenti-chimici-per-gli-impian) [Gases – Levering van gassen en controle van gerelateerde infrastructuur · Ev - Ilvo · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-2b7c-7026-a248-04bdcfe4b26b/belgium-gases-levering-van-gassen-en-controle-van-gerelateerde-infrastructuu) [New activated carbon – Dostawa pylistego węgla aktywnego (PWA) do uzdatniania wody przeznaczonej do spożycia z podziałem na zadania · Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w m. st. Warszawie S.A. · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-1f0a-7143-bcfd-c2eb3eeb26b7/poland-new-activated-carbon-dostawa-pylistego-wegla-aktywnego-pwa-do-uzdat) [Water-treatment chemicals – Fourniture de produits de traitement des eaux de piscines et de produits spécifiques d'entretien des bassins · Ville de Toulon · 31 days left · 19 Nov 2026](https://tendernation.io/opportunities/01a15183-587f-725f-b31c-0bd215e3a5e0/france-water-treatment-chemicals-fourniture-de-produits-de-traitement-des-ea)