SEA Environmental Report for the Draft Cork City Development Plan 2022-2028
outside the main settlements, the main method of sewage disposal is by individual septic tanks and other types of wastewater treatment. Irish Water has provided information on wastewater treatment capacity, constraints and projects planned within the City to improve the existing network, to assist the Council in the preparation of the new City Development Plan (shown on Table 4.2). This information indicates where there may be wastewater treatment capacity available to accommodate growth (“headroom”) in terms of population equivalent 52 (PE) in areas serviced by a public wastewater treatment plant. Spare treatment capacity is identified as being available in most WWTPs serving the City with the following levels of headroom (PE) available:
period. A separate plan will be prepared in relation to sludge produced at drinking water plants. 4.11.10.2 Water Supply Irish Water is responsible for providing and maintaining adequate public water supply infrastructure throughout the City. Cork City lies within the Cork City Water Resource Zone (WRZ). The Cork City WRZ includes the Cork City Water Supply System (WSS), Cork Harbour and City WSS and Glashaboy WSS. The Cork Harbour and City WSS (Inniscarra Water Treatment Plant) supplies some of the eastern, western and southern suburbs of Cork City including the towns of Ballincollig, Blarney, and Tower, while the Glashaboy WSS serves Glanmire. The remaining households are served by either Group Water Schemes or private wells, which do not fall within the remit of Irish Water. 53 Under Section 58 of the Environmental Protection Agency Act 1992, the EPA is required to collect and verify monitoring results for all water supplies in Ireland covered by the European Communities (Drinking Water). The EPA publishes their results in annual reports that are supported by Remedial Action Lists (RALs). The RAL identifies water supplies that are not in compliance with the Regulations mentioned above. the most recent available RAL (Q4 of 2020 published in January 2021) identifies two Cork City drinking water supplies:
Carrigrennan WWTP (122,180 PE); Ballinacollig WWTP (10,493 PE); Blarney WWTP (5,345 PE); Rosemount, Kilcully WWTP (6 PE); and Kileens WWTP (potential availability).
Table 4.3 provides information on wastewater treatment plant performance sourced from the EPA’s 2019 Annual Environmental Reports (AERs). These Wastewater Agglomerations are subject to Wastewater Discharge Licences issued by The Environmental Protection Agency. WWTPs non-compliant with the Emission Limit Values (ELVs) set in the Discharge Licences include:
Blarney WWTP (D0043-01); Ballincollig New WWTP (D0049-01); Cork City WWTP (D0033-01);
Killeens WWTP (D0329-01); Drainage Area Plans (DAPs) are being prepared by Irish Water for the Cork City wastewater network (which includes the network in Glanmire, Glounthaune and Little Island, all of which drain to Carrigrenan WWTP), and the Ballincollig wastewater network. Irish Water is responsible for the treatment and disposal of the sludge that is generated from both its water and wastewater treatment plants. Irish Water has prepared a National Wastewater Sludge Management Plan 2016- 2021 that outlines Irish Water’s strategy to ensure a nationwide standardised approach for managing wastewater sludge over a 25-year 52 WWTPs are described in terms of their designed treatment capacity, which is generally expressed as population equivalent (PE). This is a measurement of total organic biodegradable load, including industrial, institutional, commercial and domestic organic load, on a
The Glashaboy Water Supply is listed on the most recent EPA RAL due to EPA treatment and management issues. This Water Supply Scheme has a supply volume of 20,010 m 3 /day, serving a population of 22,808 people. The upgrade of this plant is scheduled for completion in June 2024. The Cork City Water Supply is listed on the most recent EPA RAL due to EPA treatment and management issues. This Water Supply Scheme has a supply volume of 42,733 m 3 /day, serving a population of 87,114 people. The proposed plan of action to remedy this issue is to upgrade the Water Treatment Plant by December 2021.
Currently, Irish Water is developing the National Water Resource Plan outlining how to move to a sustainable, secure and reliable public drinking water supply over a 25-year period while safeguarding the environment. It wastewater treatment plant, converted to the equivalent number of PEs. One person is considered to generate 60g of five-day Biochemical Oxygen Demand (BOD) per day. 1 PE is defined as being equivalent to 60g of BOD per day. 53 Draft Cork City Development Plan 2022 - 2028
CAAS for Cork City Council
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