Mayo

10-Year Water Supply Capacity Register

Published March 2022
RegionCountySettlement NameWater Resource Zone Name (WRZ)WRZ IDIndication of available capacity to support 2031 population targets
NW Mayo Castlebar Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Ballina Ballina 2200SC0004 Capacity Available - Level of service (LoS) improvement required
NW Mayo Westport Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Claremorris Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Ballinrobe Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Ballyhaunis Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Swinford Swinford 2200SC0018 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Foxford Foxford 2200SC0011 Capacity Available
NW Mayo Kiltimagh Kiltimagh PWS 2200SC0014 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Crossmolina Ballina 2200SC0004 Capacity Available - Level of service (LoS) improvement required
NW Mayo Charlestown-Bellahy Charlestown 2200SC0008 Capacity Available
NW Mayo Béal An Mhuirthead Erris RWSS 2200SC0007 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Knock Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Balla Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Newport Newport 2200SC0017 Capacity Available
NW Mayo Killala Ballina 2200SC0004 Capacity Available - Level of service (LoS) improvement required
NW Mayo Keel-Dooagh Achill 2200SC0005 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Louisburgh Louisburgh 2200SC0015 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Shrule Lough Corrib (Galway City, Tuam, Loughrea) 1100SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Kilkelly Kilkelly 2200SC0012 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Ballindine Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Bangor Erris Erris RWSS 2200SC0007 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Turlough Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Mulranny Mulranny 2200SC0016 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Gob An Choire Achill 2200SC0005 Potential Capacity Available - Level of service (LoS) improvement required
NW Mayo Ballycastle Ballina 2200SC0004 Capacity Available - Level of service (LoS) improvement required
NW Mayo Bunnyconnelan West Ballina 2200SC0004 Capacity Available - Level of service (LoS) improvement required
NW Mayo Kilmaine Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
NW Mayo Conga Lough Mask & Westport 2200SC0001 Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Castlebar
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Ballina
Water Resource Zone Name (WRZ) Ballina
WRZ ID 2200SC0004
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Westport
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Claremorris
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Ballinrobe
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Ballyhaunis
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Swinford
Water Resource Zone Name (WRZ) Swinford
WRZ ID 2200SC0018
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Foxford
Water Resource Zone Name (WRZ) Foxford
WRZ ID 2200SC0011
Indication of available capacity to support 2031 population targets Capacity Available
Region NW
County Mayo
Settlement Name Kiltimagh
Water Resource Zone Name (WRZ) Kiltimagh PWS
WRZ ID 2200SC0014
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Crossmolina
Water Resource Zone Name (WRZ) Ballina
WRZ ID 2200SC0004
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Charlestown-Bellahy
Water Resource Zone Name (WRZ) Charlestown
WRZ ID 2200SC0008
Indication of available capacity to support 2031 population targets Capacity Available
Region NW
County Mayo
Settlement Name Béal An Mhuirthead
Water Resource Zone Name (WRZ) Erris RWSS
WRZ ID 2200SC0007
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Knock
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Balla
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Newport
Water Resource Zone Name (WRZ) Newport
WRZ ID 2200SC0017
Indication of available capacity to support 2031 population targets Capacity Available
Region NW
County Mayo
Settlement Name Killala
Water Resource Zone Name (WRZ) Ballina
WRZ ID 2200SC0004
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Keel-Dooagh
Water Resource Zone Name (WRZ) Achill
WRZ ID 2200SC0005
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Louisburgh
Water Resource Zone Name (WRZ) Louisburgh
WRZ ID 2200SC0015
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Shrule
Water Resource Zone Name (WRZ) Lough Corrib (Galway City, Tuam, Loughrea)
WRZ ID 1100SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Kilkelly
Water Resource Zone Name (WRZ) Kilkelly
WRZ ID 2200SC0012
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Ballindine
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Bangor Erris
Water Resource Zone Name (WRZ) Erris RWSS
WRZ ID 2200SC0007
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Turlough
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Mulranny
Water Resource Zone Name (WRZ) Mulranny
WRZ ID 2200SC0016
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Gob An Choire
Water Resource Zone Name (WRZ) Achill
WRZ ID 2200SC0005
Indication of available capacity to support 2031 population targets Potential Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Ballycastle
Water Resource Zone Name (WRZ) Ballina
WRZ ID 2200SC0004
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Bunnyconnelan West
Water Resource Zone Name (WRZ) Ballina
WRZ ID 2200SC0004
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Kilmaine
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required
Region NW
County Mayo
Settlement Name Conga
Water Resource Zone Name (WRZ) Lough Mask & Westport
WRZ ID 2200SC0001
Indication of available capacity to support 2031 population targets Capacity Available - Level of service (LoS) improvement required

Indication of available capacity to support 2031 population targets

• Capacity Available = Capacity Available to meet targeted population growth to 2031

• Capacity Available - Level of service (LoS) improvement required = Capacity Available to meet targeted population growth to 2031 although an improvement to the Level of service (LoS) will be required. This may take the form of leakage reduction and/or capital investment to maintain/improve levels of service as the demand increases. Proposed solutions will be developed & prioritised through the National Water Resources Plan and investment planning process.

• Potential Capacity Available - Level of service (LoS) improvement required = Capacity constraints exist, connection applications will be assessed on an individual basis considering their specific demand requirements. An improvement to the Level of service (LoS) will be required to meet 2031 population targets. This may take the form of leakage reduction and/or capital investment to maintain/improve levels of service as the demand increases. Proposed solutions will be developed & prioritised through the National Water Resources Plan and investment planning process.

• Capital Investment Required = Capacity not available - Capital investment required to increase capacity. Proposed solutions will be developed & prioritised through the National Water Resources Plan and investment planning process.

Level of Service (LoS)

Level of Service (LoS) refers to the reliability of the supply that our customers can expect to receive.

Water Resource Zone (WRZ)

A WRZ is an independent water supply system serving a region, city, town or village and is governed by topography or the extent of the water distribution network in an area. A WRZ may include multiple Water Treatment Plants and/ or sources.

General

  • The determination of capacity is based on a standardised national review of the available information.

  • The information in this table is based on available information at the date of issue and is subject to change.

  • This register provides commentary on the ability of a WRZ to produce water to support the planned growth, it does not consider the capacity of the distribution network. A Pre- Connection Enquiry should be submitted to Irish Water to determine the feasibility of connecting any particular site to the Irish Water network, feasibility should not be inferred from this register.

  • Target settlement populations for this register have been informed by local, regional and national planning policy.