2015 NI Water Drinking Water Quality Annual Report
2024 Water Hardness by Water Supply Zone
Some background information with respect to where NI Water collects samples from, and the parameters analysed along with their regulatory consent limits which are referred to as their Prescribed Concentrations or Values (PCV).
2024 NI Water - Understanding your Water Quality Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2008 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2008 NI Water Customer Tap Public Register
2005 NI Water Drinking Water Quality Report
2017 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2007 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2007 NI Water Customer Tap & Authorised Supply Point Results
Postcode v Zone Public Register Lookup by Year - to allow the quick searching for which Public Register should be referenced for a particular postcode
Postcode v Zone Public Register Lookup by Year
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2008 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2008 NI Water Customer Tap & Authorised Supply Point Results
2014 NI Water Drinking Water Quality Annual Report
2014 NI Water Drinking Water Quality Annual Report4
2007 NI Water Drinking Water Quality Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2017 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2017 NI Water Customer Tap & Authorised Supply Point Results
2022 IMPORTANT INFORMATION Due to Covid 19 restrictions, customer tap samples were collected at upstream Service Reservoirs from 1st January 2022, with some customer tap only parameters excluded. NI Water recommenced sampling at public buildings with effect from the week commencing 28th February 2022, and at private customer taps with effect from 14th March 2022. Results taken from Customer Taps and Authorised Supply Points by NI Water during 2022 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2022 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2012 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2012 NI Water Customer Tap Public Register
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2015 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2015 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2011 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2011 NI Water - Customer Tap Public Register
2023 NI Water Drinking Water Quality Annual Report
2021 IMPORTANT INFORMATION Please be aware that during 2020 & 2021 due to the ongoing COVID-19 pandemic, with the agreement of the Drinking Water Inspectorate (DWI), NI Water reduced potable water sampling as part of the plan to protect staff and customers, whilst maintaining assurance that there was no risk to public health from public water supplies. This included the cessation of all sampling at customer taps, with a reduced number of parameters sampled upstream at Service Reservoirs. The reductions commenced at the start of April 2020. From 18 May 2020 sampling returned to the regulatory frequencies, with the exception of a small number of customer tap specific parameters. NI Water recommenced sampling at public buildings with effect from 21st June 2021, and recommenced sampling at private customer taps with effect from 13th September 2021. Due to the increased risk to our staff and customers from the Omicron COVID-19 variant, with the agreement of DWI, NI Water again ceased sampling at customer taps with effect from 20th December. These samples were again collected at upstream Service Reservoirs, with some customer tap only parameters excluded. This dataset comprises summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2021 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2021 NI Water Customer Tap Public Register
2011 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2011 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2011 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2009 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2009 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2024 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2024 NI Water Customer Tap Public Register
2004 NI Water Drinking Water Quality Report
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2004 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2004 NI Water Customer Tap Public Register
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2013 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2013 NI Water Customer Tap Public Register
2022 NI Water Drinking Water Quality Annual Report
2006 NI Water Drinking Water Quality Report
2008 NI Water Drinking Water Quality Report
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2007 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2007 NI Water Customer Tap Public Register
2020 IMPORTANT INFORMATION Please be aware that during 2020 due to the ongoing COVID-19 pandemic, with the agreement of the Drinking Water Inspectorate (DWI), NI Water reduced potable water sampling as part of the plan to protect staff and customers, whilst maintaining assurance that there was no risk to public health from public water supplies. This included the cessation of all sampling at customer taps with effect from 16th March 2020, with a reduced number of parameters sampled upstream at Service Reservoirs. From 18th May 2020 sampling returned to the regulatory frequencies, with the exception of a small number of parameters which are customer tap specific. Customer tap sampling remains at designated Service Reservoirs or other identified fixed point locations. This has created a shortfall in regulatory sampling at customer tap for the calendar year 2020. During the period however, NI Water maintained full sampling and analysis at its Water Treatment Works and downstream Service Reservoirs as per regulatory requirements. This along with customer tap samples taken at designated fixed points in the distribution system, ensured that the quality of water supplied to our customers was effectively monitored and maintained throughout the period. Results taken from Customer Taps and Authorised Supply Points by NI Water during 2020 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2020 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2012 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2012 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2018 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2018 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2003 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2003 NI Water Customer Tap Public Register
Summary results taken from Customer Taps by NI Water during 2002 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 1994 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 50,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2002 NI Water Customer Tap Public Register
2023 Water Hardness by Water Supply Zone
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2017 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2017 NI Water Customer Tap Public Register
2020 IMPORTANT INFORMATION Please be aware that during 2020 due to the ongoing COVID-19 pandemic, with the agreement of the Drinking Water Inspectorate (DWI), NI Water reduced potable water sampling as part of the plan to protect staff and customers, whilst maintaining assurance that there was no risk to public health from public water supplies. This included the cessation of all sampling at customer taps with effect from 16th March 2020, with a reduced number of parameters sampled upstream at Service Reservoirs. From 18th May 2020 sampling returned to the regulatory frequencies, with the exception of a small number of parameters which are customer tap specific. Customer tap sampling remains at designated Service Reservoirs or other identified fixed point locations. This has created a shortfall in regulatory sampling at customer tap for the calendar year 2020. During the period however, NI Water maintained full sampling and analysis at its Water Treatment Works and downstream Service Reservoirs as per regulatory requirements. This along with customer tap samples taken at designated fixed points in the distribution system, ensured that the quality of water supplied to our customers was effectively monitored and maintained throughout the period. This dataset comprises summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2020 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2020 NI Water Customer Tap Public Register
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2009 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2009 NI Water Customer Tap Public Register
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2006 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2006 NI Water Customer Tap Public Register
2019 NI Water Drinking Water Quality Annual Report
2019 NI Water Drinking Water Quality Annual Report19
2021 NI Water Drinking Water Quality Annual Report
2022 IMPORTANT INFORMATION Due to Covid 19 restrictions, customer tap samples were collected at upstream Service Reservoirs from 1st January 2022, with some customer tap only parameters excluded. NI Water recommenced sampling at public buildings with effect from the week commencing 28th February 2022, and at private customer taps with effect from 14th March 2022. This dataset comprises summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2021 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2022 NI Water Customer Tap Public Register
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2019 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2019 NI Water Customer Tap & Authorised Supply Point Results
2009 NI Water Drinking Water Quality Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2013 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2013 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2014 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2014 NI Water - Customer Tap Public Register
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2016 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2016 NI Water Customer Tap Public Register
2013 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2024 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2024 NI Water Customer Tap & Authorised Supply Point Results
2003 NI Water Drinking Water Quality Report
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2015 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2015 NI Water - Customer Tap Public Register
2020 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2006 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2006 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2023 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2023 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2010 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2010 NI Water Customer Tap Public Register
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2018 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2018 NI Water Customer Tap Public Register
2016 NI Water Drinking Water Quality Annual Report
2016 NI Water Drinking Water Quality Annual Report16
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2016 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2016 NI Water Customer Tap & Authorised Supply Point Results
2010 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2005 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2005 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps by NI Water during 2003 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses.
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2005 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2005 NI Water Customer Tap Public Register
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2014 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2014 NI Water Customer Tap & Authorised Supply Point Results
Results taken from Customer Taps by NI Water during 2002 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 1994 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 50,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses.
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2010 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2007 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2010 NI Water Customer Tap & Authorised Supply Point Results
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2023 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2023 NI Water Customer Tap Public Register
2018 NI Water Drinking Water Quality Annual Report
2021 IMPORTANT INFORMATION Please be aware that during 2020 & 2021 due to the ongoing COVID-19 pandemic, with the agreement of the Drinking Water Inspectorate (DWI), NI Water reduced potable water sampling as part of the plan to protect staff and customers, whilst maintaining assurance that there was no risk to public health from public water supplies. This included the cessation of all sampling at customer taps, with a reduced number of parameters sampled upstream at Service Reservoirs. The reductions commenced at the start of April 2020. From 18 May 2020 sampling returned to the regulatory frequencies, with the exception of a small number of customer tap specific parameters. NI Water recommenced sampling at public buildings with effect from 21st June 2021, and recommenced sampling at private customer taps with effect from 13th September 2021. Due to the increased risk to our staff and customers from the Omicron COVID-19 variant, with the agreement of DWI, NI Water again ceased sampling at customer taps with effect from 20th December. These samples were again collected at upstream Service Reservoirs, with some customer tap only parameters excluded. Results taken from Customer Taps and Authorised Supply Points by NI Water during 2021 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2021 NI Water Customer Tap & Authorised Supply Point Results
2002 NI Water Drinking Water Quality Report
2023 Water Hardness for Northern Ireland Map
Summary Public Register results by Water Supply Zone, anonymised individual results for Customer Tap samples collected within Water Supply Zones and Authorised Supply Points, and Drinking Water Quality Annual Reports.
Northern Ireland Water Drinking Water Quality Public Registers, Individual Customer Tap & Authorised Supply Point Results, & Drinking Water Quality Annual Reports
Summary results taken from Customer Taps and Authorised Supply Point by NI Water during 2019 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2017 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a residential population of no more than 100,000 supplied with water by one treatment works or blended water from several works. Under the regulations, NI Water is able to analyse certain parameters which do not change in the distribution system at the supplying water treatment works as an Authorised Supply Point. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments.
2019 NI Water Customer Tap Public Register
2012 NI Water Drinking Water Quality Annual Report
Results taken from Customer Taps and Authorised Supply Points by NI Water during 2004 to meet the requirements of the Water Supply (Water Quality) Regulations (Northern Ireland) 2002 as amended. Samples collected from customer taps are taken at random addresses in each water supply zone. A water supply zone is a designated area with a population of no more than 100,000 supplied with water by one treatment works or blended water from several works. The number and boundaries of water supply zones are subject to change according to operational requirements as supply sources to areas are adjusted to meet demand and infrastructure developments. To preserve our customers' anonymity, only the postcode is given for each sample and not the individual addresses. Some parameters do not change in the supply network, and (under the Regulations) may be analysed at an upstream Authorised Supply Point, normally the supplying water treatment works. To maintain operational security, these points have their postcodes withheld.
2004 NI Water Customer Tap & Authorised Supply Point Results