Wexford County CouncilThe town of New Ross is situated on the tidal reach of the Barrow Estuary. It is located on the Wexford/Kilkenny count boundary with most of the urbanised area

Wexford County Council

Application for New Ross Wastewater Discharge Licence

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Wexford County Council New Ross Wastewater Discharge Licence Application

ii

Table of Contents

SECTION A 4

SECTION B 7 B.1 Applicant’s Details* 8 B.2 Location of Associated Waste Water Treatment Plant(s) 9 B.3 Location of Primary Discharge Point 10 B.4 Location of Secondary Discharge Point(s) 10 B.5 Location of Storm Water Overflow Point(s) 11 B.6 Planning Authority 12 B.7 Other Authorities 12 B.8 Notices and Advertisements 13 B.9 (i) Population Equivalent of Agglomeration 13 B.9 (ii) Fees 13 B.10 Capital Investment Programme 14 B.11 Significant Correspondence 14 B.12 Foreshore Act Licences. 14

SECTION C 15 C.1 Operational Information Requirements 16 C2. Outfall Design and Construction 18

SECTION D 19 D.1 Discharges to Surface Waters 20 D.2 Tabular Data on Discharge Points 20

SECTION E 21 E.1 Waste Water Discharge Frequency and Quantities – Existing & Proposed 22 E.2. Monitoring and Sampling Points 22 E.3. Tabular data on Monitoring and Sampling Points 22 E.4 Sampling Data 22

SECTION F 24 F.1. Assessment of Impact on Receiving Surface or Ground Water 25 F.2 Tabular Data on Drinking Water Abstraction Point(s) 26

F1. ASSESSMENT OF IMPACT ON RECEIVING SURFACE OR GROUND WATER 91

SECTION G 28 G.1 Compliance with Council Directives 29 G.2 Compliance with Water Quality Standards for Phosphorus Regulations (S.I. No. 258 of 1998). 29 G.3 Impact Mitigation 29 G.4 Storm Water Overflow 29

SECTION H 31

SECTION I 32

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iii

ATTACHMENT NO. A. 33 ATTACHMENT NO. B. 34 ATTACHMENT NO. C. 46 ATTACHMENT NO. D. 48 ATTACHMENT NO. E 85 ATTACHMENT NO. F. 91 ATTACHMENT NO.G. 97

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Page4 of 102

Section A

Non-Technical Summary

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Page5 of 102

Introduction

The town of New Ross is situated on the tidal reach of the Barrow Estuary. It is located on the

Wexford/Kilkenny count boundary with most of the urbanised area in County Wexford.

Present Situation

There is currently no treatment at New Ross for a PE of 6,500 and any water is discharged,

without any treatment, through more than fourteen separate outfall points into the Barrow at

New Ross. Many of these outfalls are directly in front of the Quays.

Wexford County Council proposes to build a wastewater treatment works (construction

commenced) and associated pumping stations and pipelines to transport and treat

wastewaters from both domestic and industrial sources in New Ross Town and its Environs.

The proposal

It is proposed to construct an interceptor sewer draining to a pumping station and associated

rising main to direct all sewage flows to the proposed wastewater treatment works which will

be located in the Marshmeadows area, south of the town. The wastewater treatment works

will cater for an ultimate PE of 24,000 however the first phase of the proposed works will be

for a PE of 15,000. This includes for pollution loads from non-domestic sources, such as

shops, hotels, restaurants and local industries.

The Quay pumping station, to be built in the area south of Priory Lane, will receive all flows

currently discharged through the outfalls at the Wexford side of New Ross, and also form an

existing pumping station at Rosbercon. New sewers running along the Wexford Road (N25)

will take foul sewage flows from the Southknock and Butlersland areas to the Quay pumping

station. All the sewage will then be pumped directly to the works.

A description of the Wastewater Works and the activities to be carried out therein

The contractor has proposed preliminary treatment consisting of a Jones & Attwood

Combined Inlet System (CIS) which combines the screening and grit removal in a single tank.

The screened influent is then pumped to the SBR splitter chamber.

A summary of the proposed treatment process is presented below:

Inlet Works 2 No. Fine screens (6mm) (duty/assist), “ No. Screen

Compactors, 1 No. Grit Tank (315 l/s), 1 No. Grit Classifier, 1

No. Grit Air Blower.

Storm Holding 1 No. Storm Tank (1080m3)., 1 No. Storm Tank Tipping Bucket, “

No. Storm Return Pumps

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Page6 of 102

Activated sludge

Treatment 2No. Sequenced Batch Reactors (SBR’s), 2 No. Air Blowers

Waste Activated Sludge

Thickening 2 No. (Duty) Picket Fence Thickener (PFT), Diameter 5.0m

Imported Sludge Provision has been made to receive liquid sludge. 1No. Imported

Sludge Screen, 1 No. Imported Sludge Pump.

Sludge Blending 2 No. Sludge Blending Tanks (200m3), 2 No. Sludge Blending

Mixer, “ No. Decanter Feed Pumps.

Sludge Dewatering 2 No. Centrifuge 2 No. Sludge Conveyors

The sources of emissions from the Wastewater Treatment Works

The pollution lad for the New Ross agglomeration arises from both the local population and

the local industries. From census figures, the average current biological load has been

estimated at 10,000 PE. Of this figure the current domestic population of New Ross and its

environs accounts for 7700 persons.

The nature and quantities of foreseeable emissions from the wastewater works into the receiving aqueous environment as well as identification of significant effects of the

emissions on the environment.

Domestic Loads

The projected domestic population estimate for 2015 has been calculated at 9,500, resulting

in a estimated flow of 1,710 m3/day.

Non - Domestic Loads

The projected non domestic load to the wastewater treatment works is estimated at

750m3/day in 2015. An estimated 10% of the domestic and non domestic flows are added for

infiltration, resulting in an infiltration flow of 246 m3/day by 2015.

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Page7 of 102

Section B

General

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Page8 of 102

B.1 Applicant’s Details* Name and Address for Correspondence Only application documentation submitted by the applicant and by the nominated person will be deemed to have come from the applicant. Provide a drawing detailing the agglomeration to which the licence application relates. It should have the boundary of the agglomeration to which the licence application relates clearly marked in red ink.

Name**: Wexford County Council Address: County Hall Spawell Road Wexford Tel: 053 9176500 Fax: 053 9143406 e-mail: [email protected] *This should be the name of the water services authority in whose ownership or control the

waste water works is vested. **Where an application is being submitted on behalf of more than one water services authority

the details provided in Section B.1 shall be that of the lead water services authority. Name*: T. J. O’Connor & Associates Address: Corrig House Corrig Road Sandyford Dublin 14 Tel: 01 295 2321 Fax: 01 295 4541 e-mail: [email protected] *This should be the name of person nominated by the water services authority for the purposes of the application. Co-Applicant’s Details Name*: Address: NOT APPLICABLE Tel: Fax: e-mail: *This should be the name of a water services authority, other than the lead authority, where

multiple authorities are the subject of a waste water discharge (authorisation) licence application.

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Page9 of 102

Design, Build & Operate Contractor Details Name*: Address: NOT APPLICABLE Tel: Fax: e-mail: *Where a design, build & operate contract is in place for the waste water works, or any part

thereof, the details of the contractor should be provided. Attachment B.1 should contain appropriately scaled drawings / maps (≤A3) of the

agglomeration served by the waste water works showing the boundary clearly marked in red ink. These drawings / maps should also be provided as geo-referenced digital drawing files (e.g., ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. These drawings should be provided to the Agency on a separate CD-Rom containing sections B.2, B.3, B.4, B.5, C.1, D.2, E.3 and F.2.

Yes No Attachment included

B.2 Location of Associated Waste Water Treatment Plant(s) Give the location of the waste water treatment plant associated with the waste water works, if such a plant or plants exists. Name*: Not Applicable Address: Grid ref (6E, 6N)

Level of Treatment

Primary Telephone:

Fax: e-mail: *This should be the name of the person responsible for the supervision of the waste water treatment plant. Attachment B.2 should contain appropriately scaled drawings / maps (≤A3) of the site boundary and overall site plan, including labelled discharge, monitoring and sampling points. These drawings / maps should also be provided as geo-referenced digital drawing files (e.g., ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. These drawings should be provided to the Agency on a separate CD-Rom containing sections B.1, B.3, B.4, B.5, C.1, D.2, E.3 and F.2.


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Page10 of 102

B.3 Location of Primary Discharge Point Give the location of the primary discharge point, as defined in the Waste Water Discharge (Authorisation) Regulation, associated with the waste water works. Type of Discharge

Outfall Pipe

Location William Street Foul Sewer Grid ref (6E, 6N)

E: 271471 N: 127109

Attachment B.3 should contain appropriately scaled drawings / maps (≤A3) of the discharge point, including labelled monitoring and sampling points associated with the discharge point. These drawings / maps should also be provided as geo-referenced digital drawing files (e.g. ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. This data should be provided to the Agency on a separate CD-Rom containing the drawings and tabular data requested in sections B.1, B.2, B.4, B.5, C.1, D.2, E.3 and F.2.


B.4 Location of Secondary Discharge Point(s) Give the location of all secondary discharge point(s) associated with the waste water works. Please refer to Guidance Note for information on Secondary discharge points. Type of Discharge

Outfall Pipe

Location (SD1) Grid ref (6E, 6N)

E: 271234 N: 126700

Type of Discharge

Outfall Pipe

Location Priory Lane Sewer (SD2) Grid ref (6E, 6N)

E: 271586 N: 127278

Type of Discharge

Outfall Pipe

Location Marsh Lane Sewer (SD3) Grid ref (6E, 6N)

E: 271656 N: 127363

Type of Discharge

Outfall Pipe

Location Sugar House Lane Sewer (SD4) Grid ref (6E, 6N)

E: 271717 N: 127483

Type of Discharge

Outfall Pipe


E: 271760 N: 127517

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Page11 of 102

Type of Discharge

Outfall Pipe


E: 271786 N: 127567

Type of Discharge

Outfall Pipe

Location Quay Street Sewer (SD7) Grid ref (6E, 6N)

E: 271819 N: 127613

Type of Discharge

Outfall Pipe

Location Flood Lane Sewer (SD8) Grid ref (6E, 6N)

E: 271840 N: 127678

Type of Discharge

Outfall Pipe

Location Bridge Street Sewer (SD9) Grid ref (6E, 6N)

E: 271859 N: 127712

Type of Discharge

Outfall Pipe

Location Waterford Road Sewer (SD10) Grid ref (6E, 6N)

E: 271652 N: 127682

Attachment B.4 should contain appropriately scaled drawings / maps (≤A3) of the discharge point(s), including labelled monitoring and sampling points associated with the discharge point(s). These drawings / maps should also be provided as geo-referenced digital drawing files (e.g. ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. This data should be provided to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.5, C.1, D.2, E.3 and F.2.

Yes No Attachment included B.5 Location of Storm Water Overflow Point(s) Give the location of all storm water overflow point(s) associated with the waste water works. Type of Discharge

Storm Water Overflow Pipe

Location Thomastown Road Grid ref (6E, 6N)

E: 2717730 N: 127786

Attachment B.5 should contain appropriately scaled drawings / maps (≤A3) of storm water overflow point(s) associated with the waste water works, including labelled monitoring and sampling points associated with the discharge point(s). These drawings / maps should also be provided as geo-referenced digital drawing files (e.g. ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. This data should be provided to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.4, C.1, D.2, E.3 and F.2.

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Page12 of 102


B.6 Planning Authority Give the name of the planning authority, or authorities, in whose functional area the discharge or discharges take place or are proposed to take place. Name: New Ross Town Council Address: The Tholsel New Ross Co. Wexford Tel: 051 421284 Fax: 051 421605 e-mail: [email protected] Planning Permission relating to the waste water works which is the subject of this application:- (tick as appropriate) has been obtained is being processed is not yet applied for is not required Local Authority Planning File Reference No:

PL26.EC2010

Attachment B.6 should contain the most recent planning permission, including a copy of all conditions, and where an EIS was required, copies of any such EIS and any certification associated with the EIS, should also be enclosed. Where planning permission is not required for the development, provide reasons, relevant correspondence, etc.


B.7 Other Authorities B.7 (i) Shannon Free Airport Development Company (SFADCo.) area Not Applicable B.7 (ii) Health Services Executive Region The applicant should indicate the Health Services Executive Region where the discharge or discharges are or will be located. Name: South Eastern HSE Address: 11 Redwood park Murrinstown Co. Wexford Tel: (053)39834 Fax: e-mail: [email protected] B.7 (iii) Other Relevant Local Authorities

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Page13 of 102

Regulation 13 of the Waste Water Discharge (Authorisation) Regulations, 2007 requires all applicants, not being the local authority in whose functional area the relevant waste water discharge or discharges, to which the relevant application relates, takes place or is to take place, to notify the relevant local authority of the said application. Name: New Ross Town Council Address: The Tholsel New Ross Tel: 051 421284 Fax: 051 421605 e-mail: [email protected]

Yes No Relevant Authority Notified

Attachment B.7(iii) should contain a copy of the notice issued to the relevant local authority.


B.8 Notices and Advertisements Regulations 10 and 11 of the Waste Water Discharge (Authorisation) Regulations, 2007 require all applicants to advertise the application in a newspaper and by way of a site notice. See Guidance Note. Attachment B.8 should contain a copy of the site notice and an appropriately scaled drawing (≤A3) showing its location. The original application must include the original page of the newspaper in which the advertisement was placed. The relevant page of the newspaper containing the advertisement should be included with the original and two copies of the application.


B.9 (i) Population Equivalent of Agglomeration

TABLE B.9.1 POPULATION EQUIVALENT OF AGGLOMERATION

The population equivalent (p.e.) of the agglomeration to be, or being, served by the waste water works should be provided and the period in which the population equivalent data was compiled should be indicated.

Population Equivalent 10,000 Data Compiled (Year) 2006 Method Census

B.9 (ii) FEES

State the relevant Class of waste water discharge as per Column 1 of the Second Schedule, and the appropriate fee as per Columns 2 or 3 of the Third Schedule of the Waste Water Discharges (Authorisation) Regulations 2007, S.I. No. 684 of 2007.

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Class of waste water discharge Fee (in €) 30,000

Yes No Appropriate Fee Included

B.10 Capital Investment Programme State whether a programme of works has been prioritised for the development of infrastructure to appropriately collect, convey, treat and discharge waste water from the relevant agglomeration. If a programme of works has been prioritised provide details on funding, (local or national), allocated to the capital project. Provide details on the extent and type of work to be undertaken and the likely timeframes for this work to be completed. Attachment B.10 should contain the most recent development programme, including a copy of any approved funding for the project and a timeframe for the completion of the necessary works to take place.


B.11 Significant Correspondence Provide a summary of any correspondence resulting from a Section 63 notice issued by the Agency in relation to the waste water works under the Environmental Protection Agency Acts, 1992 and 2003, as amended by Section 13 of Protection of the Environment Act, 2003.

Attachment B.11 should contain a summary of any relevant correspondence issued in relation to a Section 63 notice.


Not Applicable

B.12 Foreshore Act Licences. Provide a copy of the most recent Foreshore Act licence issued in relation to discharges from the waste water works issued under the Foreshore Act 1933.

Attachment B.12 should contain the most recent licence issued under the Forsehore Act 1933, including a copy of all conditions attached to the licence and any monitoring returns for the previous 12-month period, if applicable.


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Page15 of 102

Section C

Infrastructure & Operation

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Page16 of 102

C.1 Operational Information Requirements Provide a description of the plant, process and design capacity for the areas of the waste water works where discharges occur, to include a copy of such plans, drawings or maps, (site plans and location maps, process flow diagrams), and such other particulars, reports and supporting documentation as are necessary to describe all aspects of the area of the waste water works discharging to the aquatic environment. Maps and drawings must be no larger than A3 size.

Attachment C.1 should contain supporting documentation with regard to the plant and process capacity, systems, storm water overflows, emergency overflows, etc., including flow diagrams of each with any relevant additional information. These drawings / maps should also be provided as geo-referenced digital drawing files (e.g. ESRI Shapefile, MapInfo Tab, AutoCAD or other upon agreement) in Irish National Grid Projection. This data should be provided to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.4, B.5, D.2, E.3 and F.2.


NOT APPLICABLE

C.2 Outfall Design and Construction Provide details on the primary discharge point & secondary discharge points and storm overflows to include reference, location, design criteria and construction detail. Attachment C.2 should contain any supporting documentation on the design and construction of any and all discharge outfalls, including stormwater overflows, from the waste water works.


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Page17 of 102

C1. Description of the plant, process and design capacity

Not Applicable

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Page18 of 102

C2. Outfall Design and Construction

Reference Diameter

(mm) Invert Level Receiving Water

SW1 1050 -0.70m River Barrow SW2 375 -0.56m River Barrow SW3 300 Through Quay Wall Slightly Above low water mark River Barrow SW4 450 Approx 2.00m River Barrow SW5 225 Through Quay Wall above low water mark River Barrow SW6 225 River Barrow SW7 300 Through Quay Wall above low water mark River Barrow SW8 450 Through Quay Wall above low water mark River Barrow SW9 225 River Barrow SW10 225 Through Quay Wall above low water mark River Barrow SW11 250 River Barrow SW12 900 -0.73m River Barrow

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Page19 of 102

Section D

Discharges to the Aquatic Environment

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Page20 of 102

D.1 Discharges to Surface Waters Details of all discharges of waste water from the agglomeration should be supplied. Tables D.1(i)(a), (b) & (c), should be completed for the primary discharge point from the agglomeration and Tables D.1(ii)(a), (b) & (c) of Annex 1 should be completed for each secondary discharge point, where relevant. Table D.1(iii)(a) should be completed for each storm water overflow. Individual Tables must be completed for each discharge point. Supporting information should form Attachment D.1


D.2 Tabular Data on Discharge Points Applicants should submit the following information for each discharge point:

Table D.2:

PT_CD

PT_TYPE

LA_NAME RWB_TYPE

RWB_NAME

DESIGNATION EASTING

NORTHING

Point Code Provide label ID’s

Point Type (e.g., Primary/ Secondary/ Storm Water Overflow)

Local Authority Name (e.g., Donegal County Council)

Receiving Water Body Type (e.g., River, Lake, Groundwater, Transitional, Coastal)

Receiving Water Body Name (e.g., River Suir)

Protected Area Type (e.g., SAC, candidate SAC, NHA, SPA etc.)

6E-digit GPS Irish National Grid Reference

6N-digit GPS Irish National Grid Reference

An individual record (i.e. row) is required for each discharge point. Acceptable file formats include Excel, Access or other upon agreement with the Agency. A standard Excel template can be downloaded from the EPA website at www.epa.ie. This data should be submitted to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.4, B.5, C.1, E.3 and F.2.

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Page 21 of 102

Section E

Monitoring

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E.1 Waste Water Discharge Frequency and Quantities – Existing & Proposed Provide an estimation of the quantity of waste water likely to be emitted in relation to all primary and secondary discharge points applied for. This information should be included in Table E.1(i) of the Annex. The primary discharge shall be annotated with a (P). Provide an estimation of the quantity of waste water likely to be emitted in relation to all storm water overflows within the agglomeration applied for. This information should be included in Table E.1(ii) of the Annex.

E.2. Monitoring and Sampling Points Programmes for environmental monitoring should be submitted as part of the application. These programmes should be provided as Attachment E.2. Reference should be made to, provision of sampling points and safe means of access, sampling methods, analytical and quality control procedures, including equipment calibration, equipment maintenance and data recording/reporting procedures to be carried out in order to ensure accurate and reliable monitoring. In determining the sampling programme to be carried out, the variability of the emission and its effect on the receiving environment should be considered. Details of any accreditation or certification of analysis should be included.

Attachment E.2 should contain any supporting information.


None

E.3. Tabular data on Monitoring and Sampling Points Applicants should submit the following information for each monitoring and sampling point:

PT_CD PT_TYPE MON_TYPE EASTING NORTHING VERIFIED

Point Code Provide label ID’s assigned in section E of application

Point Type (e.g., Primary, Secondary, Storm Water Overflow)

Monitoring Type M = Monitoring S = Sampling



Y = GPS used N = GPS not used

An individual record (i.e., row) is required for each discharge point. Acceptable file formats include Excel, Access or other upon agreement with the Agency. A standard Excel template can be downloaded from the EPA website at www.epa.ie. This data should be submitted to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.4, B.5, C.1, D.2 and F.2.

E.4 Sampling Data Regulation 16(1)(h) of the Waste Water Discharge (Authorisation) Regulations 2007 requires all applicants in the case of an existing waste water treatment plant to specify the sampling data pertaining to the discharge based on the samples taken in the 12 months preceding the making of the application.

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Regulation 16(1)(l) of the regulations requires applicants to give details of compliance with any applicable monitoring requirements and treatment standards. Attachment E.4 should contain any supporting information.


None

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Page 24 of 102

Section F

Existing Environment & Impact of the Discharge(s)

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Page 25 of 102

F.1. Assessment of Impact on Receiving Surface or Ground Water

o Give summary details and an assessment of the impacts of any existing or proposed emissions on the environment, including environmental media other than those into which the emissions are to be made.

o Tables F.1(i)(a) & (b) should be completed for the primary discharge point. Surface

water monitoring locations upstream and downstream of the discharge point shall be screened for those substances listed in Tables F.1(i)(a) & (b). Monitoring of surface water shall be carried out at not less than two points, one upstream from the discharge location and one downstream.

o For discharges from secondary discharge points Tables F.1(ii)(a) & (b) should be

completed. Furthermore, provide summary details and an assessment of the impacts of any existing or proposed emissions on the surface water or ground (aquifers, soils, sub-soils and rock environment), including any impact on environmental media other than those into which the emissions are to be made.

o Provide details of the extent and type of ground emissions at the works. For larger

discharges to groundwaters, e.g., from Integrated Constructed Wetlands, large scale percolation areas, etc., a comprehensive report must be completed which should include, inter alia, topography, meteorological data, water quality, geology, hydrology, and hydrogeology. The latter must in particular present the aquifer classification and vulnerability. The Geological Survey of Ireland Groundwater Protection Scheme Dept of the Environment and Local Government, Geological Survey of Ireland, EPA (1999) methodology should be used for any such classification. This report should also identify all surface water bodies and water wells that may be at risk as a result of the ground discharge.

o Describe the existing environment in terms of water quality with particular reference

to environmental quality standards or other legislative standards. Submit a copy of the most recent water quality management plan or catchment management plan in place for the receiving water body. Give details of any designation under any Council Directive or Regulations that apply in relation to the receiving water.

o Provide a statement as to whether or not emissions of main polluting substances (as

defined in the Dangerous Substances Regulations S.I. No. 12 of 2001) to water are likely to impair the environment.

o In circumstances where water abstraction points exist downstream of any discharge

describe measures to be undertaken to ensure that discharges from the waste water works will not have a significant effect on faecal coliform, salmonella and protozoan pathogen numbers, e.g., Cryptosporidium and Giardia, in the receiving water environment.

o Indicate whether or not emissions from the agglomeration or any plant, methods,

processes, operating procedures or other factors which affect such emissions are likely to have a significant effect on – (a) a site (until the adoption, in respect of the site, of a decision by the European

Commission under Article 21 of Council Directive 92/43/EEC for the purposes of the third paragraph of Article 4(2) of that Directive) —

(i) notified for the purposes of Regulation 4 of the Natural Habitats

Regulations, subject to any amendments made to it by virtue of Regulation 5 of those Regulations,

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(ii) details of which have been transmitted to the Commission in accordance with Regulation 5(4) of the Natural Habitats Regulations, or

(iii) added by virtue of Regulation 6 of the Natural Habitats Regulations

to the list transmitted to the Commission in accordance with Regulation 5(4) of those Regulations,

(b) a site adopted by the European Commission as a site of Community

importance for the purposes of Article 4(2) of Council Directive 92/43/EEC1 in accordance with the procedures laid down in Article 21 of that Directive,

(c) a special area of conservation within the meaning of the Natural Habitats

Regulations, or (d) an area classified pursuant to Article 4(1) or 4(2) of Council Directive

79/409/EEC2;

1Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora (OJ No. L 206, 22.07.1992)

2Council Directive 79/409/EEC of 2 April 1979 on the conservation of wild birds (OJ

No. L 103, 25.4.1979)

o Describe, where appropriate, measures for minimising pollution over long distances or in the territory of other states.

o This section should also contain full details of any modelling of discharges from the

agglomeration. Full details of the assessment and any other relevant information on the receiving environment should be submitted as Attachment F.1.


F.2 Tabular Data on Drinking Water Abstraction Point(s) Applicants should submit the following information for each downstream or downgradient drinking water abstraction point. The zone of contribution for the abstraction point should be delineated and any potential risks from the waste water discharge to the water quality at that abstraction point identified.

ABS_CD AGG_SERVED

ABS_VOL

PT_CD DIS_DS EASTING

NORTHING

VERIFIED

Abstraction Code

Agglomeration served

Abstraction Volume in m3/day

Point Code Provide label ID’s

Distance Downstream in meters from Emission Point to Abstraction Point



Y = GPS used N = GPS not used

Note: Attach any risk assessment that may have been carried out in relation to the abstraction point(s) listed.

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An individual record (i.e. row) is required for each discharge point. Acceptable file formats include Excel, Access or other upon agreement with the Agency. A standard Excel template can be downloaded from the EPA website at www.epa.ie. This data should be submitted to the Agency on a separate CD-Rom containing sections B.1, B.2, B.3, B.4, B.5, C.1, D.2 and E.3. Attachment F.2 should contain any supporting information.

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Section G

Programmes of Improvements

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G.1 Compliance with Council Directives Provide details on a programme of improvements to ensure that emissions from the agglomeration or any premises, plant, methods, processes, operating procedures or other factors which affect such emissions will comply with, or will not result in the contravention of; the Dangerous Substances Directive 2006/11/EC, the Water Framework Directive 2000/60/EC, the Birds Directive 79/409/EEC, the Groundwater Directives 80/68/EEC & 2006/118/EC, the Drinking Water Directives 80/778/EEC, the Urban Waste Water Treatment Directive 91/271/EEC, the Habitats Directive 92/43/EEC, the Environmental Liabilities Directive 2004/35/EC and the Bathing Water Directive 76/160/EEC. Attachment G.1 should contain the most recent programme of improvements, including a copy of any approved funding for the project and a timeframe for the completion of the necessary works to take place.


G.2 Compliance with Water Quality Standards for Phosphorus Regulations (S.I. No. 258 of 1998).

Provide details on a programme of improvements, including any water quality management plans or catchment management plans in place, to ensure that improvements of water quality required under the Water Quality Standards for Phosphorous Regulations (S.I. No. 258 of 1998) are being achieved. Provide details of any specific measures adopted for waste water works specified in Phosphorus Measures Implementation reports and the progress to date of those measures. Provide details highlighting any waste water works that have been identified as the principal sources of pollution under the P regulations.

Attachment G.2 should contain the most recent programme of improvements and any associated documentation requested under Section G.3 of the application.


G.3 Impact Mitigation Provide details on a programme of improvements to ensure that discharges from the agglomeration will not result in significant environmental pollution. Attachment G.3 should contain the most recent programme of improvements, including a copy of any approved funding for the project and a timeframe for the completion of the necessary works to take place.


G.4 Storm Water Overflow Provide details on a programme of improvements to ensure that discharges other than the primary and secondary discharges comply with the definition of ‘storm water overflow’ as per Regulation 3 of the Waste Water Discharge (Authorisation) Regulations, 2007.

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Attachment G.4 should contain the most recent programme of improvements, including a copy of any approved funding for the project and a timeframe for the completion of the necessary works to take place.


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Section H

Declaration I hereby make application for a waste water discharge licence/revised licence, pursuant to the provisions of the Waste Water Discharge (Authorisation) Regulations, 2007 (S.I. No. 684 of 2007).

I certify that the information given in this application is truthful, accurate and complete. I give consent to the EPA to copy this application for its own use and to make it available for inspection and copying by the public, both in the form of paper files available for inspection at EPA and local authority offices, and via the EPA's website. This consent relates to this application itself and to any further information or submission, whether provided by me as Applicant, any person acting on the Applicant’s behalf, or any other person. Signed by : Date : (on behalf of the organisation) Print signature name: Position in organisation:

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Section I

Joint Declaration Note1 I hereby make application for a waste water discharge licence/revised licence, pursuant to the provisions of the Waste Water Discharge (Authorisation) Regulations, 2007 (S.I. No. 684 of 2007).

I certify that the information given in this application is truthful, accurate and complete. I give consent to the EPA to copy this application for its own use and to make it available for inspection and copying by the public, both in the form of paper files available for inspection at EPA and local authority offices, and via the EPA's website. This consent relates to this application itself and to any further information or submission whether provided by me as Applicant, any person acting on the Applicant’s behalf, or any other person. Lead Authority Signed by : Date : (on behalf of the organisation) Print signature name: Position in organisation: Co-Applicants Signed by : Date : (on behalf of the organisation) Print signature name: Position in organisation: Signed by : Date : (on behalf of the organisation) Print signature name: Position in organisation: Note 1: In the case of an application being lodged on behalf of more than a single water services authority the following declaration must be signed by all applicants.

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Attachment No. A.1 Supporting Information

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Attachment No. B.1 Drawing of the agglomeration served by the waste water works showing the boundary.

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Attachment No. B.2 Drawings of the site boundary and overall site plan, including labelled discharge, monitoring and sampling points.

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Attachment No. B.3 Drawings of the primary discharge point, including labelled monitoring and sampling points associated with the discharge point.

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Attachment No. B.4 Drawings of the secondary discharge point(s), including labelled monitoring and sampling points associated with the discharge point(s).

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Attachment No. B.5 Drawings of storm water overflow point(s) associated with the waste water works, including labelled monitoring and sampling points associated with the discharge point(s).

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Attachment No. B.6 The most recent planning permission, including a copy of all conditions, and where an EIS was required, copies of any such EIS and any certification associated with the EIS.

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Attachment No. B.7 (i) Location of discharges located within Shannon Free Airport Development Company area Not Applicable

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Attachment No. B.7 (iii) A copy of the notice issued to the relevant local authority.

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Attachment No. B.8 A copy of the site notice and a drawing showing its location Not Applicable

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Attachment No. B.10 Development programme including copies of approved funding and timeframes for completion

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Attachment No. B.11 Relevant correspondence issued in relation to a Section 63 Notice No Correspondence

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Attachment No. B.12 The most recent licence issued under the Foreshore Act 1933

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Attachment No. C.1 Documentation with regard to the plant and process capacity, systems, storm water overflows, emergency overflows, etc., including flow diagrams of each with any relevant additional information.

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Attachment No. C.2 Supporting documentation on the design and construction of any and all discharge outfalls, including stormwater overflows, from the waste water works

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Attachment No. D.1 Discharges to Surface Waters Details of all discharges of waste water from the agglomeration

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TABLE D.1(i)(a): EMISSIONS TO SURFACE/GROUND WATERS (Primary Discharge Point) Discharge Point Code: SW1

Source of Emission: New Ross Sewer Network

Location: New Ross

Grid Ref. (12 digit, 6E, 6N): E271471 N127109

Name of receiving waters: River Barrow

River Basin District: South Eastern River Basin District

Designation of receiving waters: SAC

Flow rate in receiving waters: 9.3m3.sec-1 Dry Weather Flow

m3.sec-1 95%ile flow

Emission Details:

(i) Volume emitted

Normal/day m3 Maximum/day m3

Maximum rate/hour m3 Period of emission (avg)

min/hr hr/day day/yr

Dry Weather Flow m3/sec

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TABLE D.1(i)(b): EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (Primary Discharge Point) Discharge Point Code: SW1 Number

Substance As discharged

Max. daily average 1 pH 2 Temperature 3 Electrical Conductivity(@25oC) Max. daily average (mg/l) kg/day 4 Suspended Solids 5 Ammonia (as N) 6 Biochemical Oxygen Demand 7 Chemical Oxygen Demand 8 Total Nitrogen (as N) 9 Nitrite (as N) 10 Nitrate (as N) 11 Total Phosphorus (as P) 12 Orthophosphate (as P)Note 1 13 Sulphate (SO4) 14 Phenols (sum) Note 2 (ug/l) Note 1: For waste water samples this monitoring should be undertaken on a sample filtered on 0.45μm filter paper. Note 2: USEPA Method 604, AWWA Standard Method 6240, or equivalent.

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TABLE D.1(i)(c): DANGEROUS SUBSTANCE EMISSIONS TO SURFACE/GROUND WATERS Primary Discharge Point - Characteristics of the emission Discharge Point Code: SW1 Number


Max. daily average (μg/l)

kg/day kg/year

1 Atrazine 2 Dichloromethane 3 Simazine 4 Toluene 5 Tributyltin 6 Xylenes 7 Arsenic 8 Chromium 9 Copper 10 Cyanide 11 Fluoride 12 Lead 13 Nickel 14 Zinc 15 Boron 16 Cadmium 17 Mercury 18 Selenium 19 Barium TABLE D.1(ii)(a): EMISSIONS TO SURFACE/GROUND WATERS (Secondary Discharge Point) (1 table per discharge point) Discharge Point Code:SW2

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Location: New Ross







Emission Details:

(i) Volume emitted





TABLE D.1(ii)(b): EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (1 table per discharge point) (Secondary Discharge Point) Discharge Point Code: SW2 Number Substance As discharged

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Max. daily average 1 pH 2 Temperature 3 Electrical Conductivity (@25oC) Max. daily average (mg/l) kg/day 4 Suspended Solids 5 Ammonia (as N) 6 Biochemical Oxygen Demand 7 Chemical Oxygen Demand 8 Total Nitrogen (as N) 9 Nitrite (as N) 10 Nitrate (as N) 11 Total Phosphorus (as P) Note 1 12 Orthophosphate (as P) 13 Sulphate (SO4) 14 Phenols (sum) Note 2 (ug/l) Note 1: For waste water samples this monitoring should be undertaken on a sample filtered on 0.45μm filter paper. Note 2: USEPA Method 604, AWWA Standard Method 6240, or equivalent.

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TABLE D.1(ii)(c): DANGEROUS SUBSTANCE EMISSIONS TO SURFACE/GROUND WATERS Secondary Discharge Point - Characteristics of the emission (1 table per discharge point) Discharge Point Code: SW2 Number



kg/day kg/year

1 Atrazine 2 Dichloromethane 3 Simazine 4 Toluene 5 Tributyltin 6 Xylenes 7 Arsenic 8 Chromium 9 Copper 10 Cyanide 11 Fluoride 12 Lead 13 Nickel 14 Zinc 15 Boron 16 Cadmium 17 Mercury 18 Selenium 19 Barium TABLE D.1(ii)(a): EMISSIONS TO SURFACE/GROUND WATERS (Secondary Discharge Point) (1 table per discharge point) Discharge Point Code:SW3

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Location: New Ross







Emission Details:

(i) Volume emitted






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kg/day kg/year

1 Atrazine 2 Dichloromethane 3 Simazine 4 Toluene 5 Tributyltin 6 Xylenes 7 Arsenic 8 Chromium 9 Copper 10 Cyanide 11 Fluoride 12 Lead 13 Nickel 14 Zinc 15 Boron 16 Cadmium 17 Mercury 18 Selenium 19 Barium TABLE D.1(ii)(a): EMISSIONS TO SURFACE/GROUND WATERS (Secondary Discharge Point) (1 table per discharge point) Discharge Point Code: SW4

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Location: New Ross







Emission Details:

(i) Volume emitted






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kg/day kg/year


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Location: New Ross







Emission Details:

(i) Volume emitted





TABLE D.1(ii)(b): EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (1 table per discharge point) (Secondary Discharge Point) Discharge Point Code: SW5 Number


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kg/day kg/year


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Location: New Ross







Emission Details:

(i) Volume emitted





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kg/day kg/year


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Location: New Ross







Emission Details:

(i) Volume emitted







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kg/day kg/year


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Location: New Ross







Emission Details:

(i) Volume emitted






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kg/day kg/year


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Location: New Ross




Designation of receiving waters: SAC, Sensitive



Emission Details:

(i) Volume emitted






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kg/day kg/year

1 Atrazine 2 Dichloromethane 3 Simazine 4 Toluene 5 Tributyltin 6 Xylenes 7 Arsenic 8 Chromium 9 Copper 10 Cyanide 11 Fluoride 12 Lead 13 Nickel 14 Zinc 15 Boron 16 Cadmium 17 Mercury 18 Selenium 19 Barium

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TABLE D.1(ii)(a): EMISSIONS TO SURFACE/GROUND WATERS (Secondary Discharge Point) (1 table per discharge point) Discharge Point Code: SW10


Location: New Ross







Emission Details:

(i) Volume emitted





TABLE D.1(ii)(b): EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (1 table per discharge point)

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(Secondary Discharge Point) Discharge Point Code: SW10 Number



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kg/day kg/year


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Location: New Ross







Emission Details:

(i) Volume emitted






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kg/day kg/year

1 Atrazine 2 Dichloromethane 3 Simazine 4 Toluene 5 Tributyltin 6 Xylenes 7 Arsenic 8 Chromium 9 Copper 10 Cyanide 11 Fluoride 12 Lead 13 Nickel 14 Zinc 15 Boron 16 Cadmium 17 Mercury 18 Selenium 19 Barium TABLE D.1(iii)(a): EMISSIONS TO SURFACE/GROUND WATERS (Storm Water Overflow) (1 table per discharge point) Discharge Point Code: SW12

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Location: New Ross







Emission Details:

(i) Volume emitted




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Attachment No. D.2 Tabular Data on Discharge Points

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Tabular Data on Discharge Points PT_CD PT_TYPE LA_NAME RWB_TYPE RWB_NAME Designation EASTING NORTHING

SW1 Primary Discharge Wexford County Council River River Barrow SAC 271471 127109 SW2 Secondary Discharge Wexford County Council River River Barrow SAC 271234 126700 SW3 Secondary Discharge Wexford County Council River River Barrow SAC 271586 127278 SW4 Secondary Discharge Wexford County Council River River Barrow SAC 271656 127363 SW5 Secondary Discharge Wexford County Council River River Barrow SAC 271717 127483 SW6 Secondary Discharge Wexford County Council River River Barrow SAC 271760 127517 SW7 Secondary Discharge Wexford County Council River River Barrow SAC 271786 127567 SW8 Secondary Discharge Wexford County Council River River Barrow SAC 271819 127613 SW9

Secondary Discharge Wexford County Council River River Barrow SAC, Sensitive 271840 127678

SW10 Secondary Discharge Wexford County Council River River Barrow

SAC, Sensitive 271859 127712

SW11 Secondary Discharge Wexford County Council River River Barrow


SW12 Stormwater Overflow Wexford County Council River River Barrow


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Attachment No. E1 Monitoring and Sampling Points None

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TABLE E.1(i): WASTE WATER FREQUENY AND QUANTITY OF DISCHARGE – Primary and Secondary Discharge Points

Identification Code for Discharge point

Frequency of discharge (days/annum) Quantity of Waste Water Discharged (m3/annum)

SW1 365/year SW2 365/year SW3 365/year SW4 365/year SW5 365/year SW6 365/year SW7 365/year SW8 365/year SW9 365/year SW10 365/year SW11 365/year

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TABLE E.1(ii): WASTE WATER FREQUENY AND QUANTITY OF DISCHARGE – Storm Water Overflows

Identification Code for Discharge point

Frequency of discharge (days/annum)

Quantity of Waste Water Discharged (m3/annum)

Complies with Definition of Storm Water Overflow

SW12 365/year Yes

cd

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Attachment No. E2 Monitoring and Sampling Points Programmes for environmental monitoring

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Attachment No. E3 Tabular Data on Monitoring and Sampling Points None

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Attachment No. E4 Sampling Data The sampling data pertaining to the discharge based on the samples taken in the 12 months preceding the making of the application None

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Attachment No. F.1

F1. Assessment of Impact on Receiving Surface or Ground Water

The presence of any areas designated for the abstraction of water intended for human

consumption

There are no abstractions for drinking water purposes downstream of the proposed works or

within the upstream tidal limit. The water at New Ross and upstream as far as Inistioge on the

Nore and as far as St.Mullins on the Barrow is brackish and unsuitable for drinking

abstractions.

Measures taken to ensure discharges form the wastewater works will not have a

significant effect on faecal coliform, salmonella and protozoan pathogen numbers in the receiving environment

There is currently no wastewater treatment plant in New Ross, and so no measure are being

taken to minimise numbers of the above in the receiving environment.

The presence of any areas designated for the protection of economically significant aquatic species

Salmon, sea trout and eels pass through the port and estuary on route to and from their

breeding grounds which extend to the upper reaches of the Rivers Barrow and Nore. There

are no shellfish beds in the area because New Ross is situated close to the upper end of the

tidal reach of the Barrow estuary. These conditions are not conducive to shellfish

development.

The presence of any areas designated as recreational and bathing waters

There are no beaches in the New Ross area and the nearest bathing areas are situated

much further downstream. Treatment of all foul wastes will enhance the water quality at such

areas.

The presence of any areas designated as nutrient sensitive areas

Under S.I. 254 of 2001 the Barrow Estuary – from the weir at Bahana Wood to New Ross

Bridge is designated as a “sensitive area”.

Natural Heritage Area and Special Areas Of Conservation

There are two areas of special conservation within a mile of the town (Duchas, 1995). At

Mountgarrett, north of New Ross a registered SAC has been identified on the basis of botanic

life found on the steep banks of the Barrow, where a woodland of oak, ash and sycamore

occurs with an acidic ground flora. The plant species saw wort (Serratula), which is recorded

nowhere else in Ireland, grows close to the river on rocks that are occasionally flooded.

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Invertebrate and bird fauna seem relatively rich. This site is 4ha in size.

At Oaklands south of New Ross, all of the wooded area is also a designated SAC. Oak wood

occurs here amongst conifers and it has a characteristic ground flora and fauna. The area

has educational value and is 26ha in size.

The tidal reaches of the Barrow are a Special Area of Conservation between St. Mullins in

County Carlow and Cheekpoint in Waterford Harbour. This stretch of water supports

populations of Twaite Shad (a member of the herring family) which is a protected species

under the EU Habitats Directive. Low dissolved oxygen is believed to be the main reason for

the historic decline in Twaite Shad numbers. Other possibilities include gravel bed siltation,

temperature changes in the water column and rising ammonia levels. As well as shad, there

are various species of plants protected under the Flora Protection Order including one

previously thought to be extinct in Ireland until discovered on the banks of the Barrow in

1990. The lower reaches of the Barrow are also noted as grounds for wintering wildfowl.

Mixing zone ore transitional areas of exceedance

The Water Quality Management Plan WQMP for the Suir Barrow Nore estuary limits the

mixing zone size to 10% of the width of the estuary at the outfall point. Proper siting of the

outfall will ensure that BOD, SS and nutrient concentrations remain within acceptable levels

at the boundary of the mixing zone.

Any modelling or dispersion studies of the effluent emission

An Foras Forbatha carried out a study in 1980 to establish the capacity of the waters of New

Ross Harbour to assimilate pollutants in the form of sewage discharges. The impact of a unit

discharge of pollutant on the receiving water pollutant level was estimated by mathematical

modelling and field studies.

A background level of BOD can be established from the results of the biennial surveys of

water quality conducted since 1980. From the 1980 study and subsequent surveys it can be

concluded that the discharge of treated effluent from the treatment works will not result in a

pollutant level in the estuary in excess of that required by the WQMP for the River Barrow

and the Estuary.

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IMPACT OF EXISTING EMISSIONS

As there is currently no waste water treatment at New Ross, the harbour is polluted; it

receives untreated sewage directly from 12 outfalls. Discoloured waters and sewage solids

are often visible on the water surface. The quay-front is occasionally flooded, which, in

addition to the material damage caused, also presents a health hazard.

Water surveys in the last decade indicate generally satisfactory conditions in the Barrow

Estuary and provide no evidence of pollution inhibiting the migration of fish. However,

occasional high phosphate levels have led to algal blooms. Elevated BOD and ammonia

levels have been experienced occasionally and the average ammonia level appears to be

increasing in recent years.

The estuarine reaches of the Barrow have been regularly sampled by the EPA and previously

by An Foras Forbatha. The EPA currently undertakes routine sampling at various points

along the Barrow estuary and publishes the results of a laboratory analysis of these samples

in an annual report. These indicate that water quality at New Ross Bridge is, in general, quite

good. The results of the 1999 survey are summarized in Table @. Except for occasional high

levels of BOD and Orthophosphate, overall conditions were considered to be satisfactory

(Neill, 2000).

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IMPACT OF THE PROPOSAL

A main drainage scheme was seen as one of the basic infra-structure needs of the area and

its implementation has a high priority. The provision of a wastewater treatment works at New

Ross is the most important phase of the main drainage scheme planned for the town.

The interception of all of the industrial and domestic discharges from New Ross town and the

domestic effluent from the Rosbercon area will eliminate most of the existing outfalls into the

estuary. The outfall from the proposed wastewater treatment works will discharge

continuously and should achieve rapid dilution with entrainment of the receiving water in the

effluent plume at the point of discharge.

Treatment of wastewater and elimination of untreated domestic sewage discharges will

benefit the migration of fish through the estuary by improving dissolved oxygen levels. In

addition to the fish life in the estuary, the waters support planktonic and benthic fauna.

The treatment of wastewater at New Ross will result in an improvement in water quality which

will be beneficial to the marine fauna in the estuary. However, some deterioration is expected

in the immediate vicinity of the outfall but this is not considered to be a significant adverse

effect in view of the improvement expected in the remainder of the Estuary.

Following construction of the wastewater treatment works at New Ross, the projected

decrease in the pollutant load discharged to the estuary from New Ross and its environs will

be of the order of 1,400kg BOD/day. Calculations indicate a predicted mean decrease in

BOD of 0.3mg/l at New Ross Bridge. After secondary treatment only 10% (140kg BOD/day)

of the total load will be discharged through the outfall which is well below the minimum

assimilative capacity of 2,830kg/day.

It is clear that there is considerable reserve assimilative capacity in the estuary at New Ross.

Secondary treatment, as proposed, will ensure that the capacity of the receiving waters to

assimilate effluent discharges will be not be exceeded as a result of discharges from the New

Ross treatment works.

The provision of a wastewater treatment works for New Ross is a statutory requirement under

Irish Law. The construction of the works at the site proposed at Marshmeadows will enable

the County Council to discharge their obligations in this respect. A brief summary of the

impacts of the proposal is presented below.

• Significant reduction (>90%) in the polluting matter entering the river leading to

o Enhanced water quality for migratory fish and fowl

o Enhanced aesthetic appearance of the river encouraging recreational and

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Page 95 of 102

tourist related activities on the river

o A reduced public health risk following the occasional flooding (tidal and

fluvial) of the quays

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Attachment No.G.1 Programme of Improvements

A new wastewater treatment plant is being constructed in New Ross. The following

information gives information on the improvements that it will bring.

Effluent Quality Requirements

The effluent quality requirements are determined with respect to:

• the Water Quality Management Plan for the River Barrow;

• The EC Urban Wastewater Directive, given effect in Irish Law by S.I. 254,

2001.

The effluent requirements for the treated wastewater are presented in Table 4 below.

Table 4: Effluent Requirements

Parameters Concentration (mg/l) Maximum Concentration

(mg/l)

Minimum Percentage Reduction

BOD *25 mg O2/l 50 mg O2/l 90

Suspended Solids *35 mg/l 52.5 mg/l 90

COD *125 mg O2/l 250 mg O2/l 75

* Standard to be achieved by 95% of samples or more

The effluent quality requirements shall be deemed to have been satisfied if not more

than 5% of samples tested during the Tests on Completion fail to conform to the

effluent requirements set out in Table 4.

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Page 98 of 102

Future Situation

In the future the collection system may be extended, so the proposed ultimate load is

estimated at 24,000 p.e, of which 13,500 PE is of domestic origin and 10,500 PE of industrial

sources. It is intended that the proposed treatment works will be extended to provide for

future increases in load and to comply with the current environmental standards.

The final effluent will be discharged to the Barrow Estuary at the proposed outfall location.

Dewatered sludge will be taken to the County Council’s sludge treatment centre at Kerlogue,

Wexford. In addition to the sludges arising from the WWTW, the proposed New Ross works

will operate as a satellite works for the purposes of minimising sludge transport costs from

smaller WWTWs in the vicinity of New Ross to the County Council’s sludge treatment centre

at Kerlogue, Wexford. Imported sludges to the New Ross works are to be screened,

dewatered and exported with sludges arising in the New Ross WWTW to Kerlogue. The New

Ross WWTW will be required to treat the liquors arising from the imported liquid sludge as

well as the loads referred to above.

Phasing

Provision for the future expansion of the plant to cater for increased loads over the lifetime of

the works is an important element of the project. A modular approach in the design of the

plant to allow for the expansion of the works without disrupting ongoing treatment of

wastewaters is therefore required.

Table 1 Breakdown of Domestic/Non-Domestic per Phase

Phase 1 Phase 2

Domestic load (PE) 8,000 13,500

Non-Domestic load (PE) 8,000 10,500

Projected Timing 2015 2025

The initial plant capacity to be designed and constructed by the contractor will be for the full

treatment of flows for a population equivalent of 16,000. All hydraulic components of the

works such as sludge pumping stations and rising mains, inter-stage siphon pipes, splitter

boxes and channels are to be designed and constructed as part of this contract for the

ultimate population equivalent of 24,000. Pipe/channel connections to take flow to and from

individual tanks which do not form part of the initial plant design may be omitted. However

provision for splitting and re-combining the flows from these tanks shall be included in the

works to be undertaken by the contractor. Electrical ducting and cabling for the ultimate plant

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Page 99 of 102

loads shall be similarly dimensioned. The Contractor shall provide for the housing of control

panels and electrical switchgear for the ultimate population load (24,000). The preliminary

treatment works shall be designed and constructed to treat the flows up to the ultimate storm

capacity identified in Table 4.1 of this volume.

Wastewater Characteristics

The characteristics of the influent to the treatment works are presented in Table @. A

distinction is made between the load in phase 1 and the load in phase 2.

Table 2: Flows, Population and Load

Phase Parameter Unit 1 2

Eq.pop. Total PE 16,000 24,000 Domestic PE 8,0001) 13,500 Non-Domestic PE 8,000 10,500

Hydraulic Loads DWF m3/d 3,312 4,968 Max Flow to Works (MFW) m3/h 1,152 1,728 Flow to Full Treatment (FFT) m3/h 1,000 1,188 Volume of stormtanks m3 1,080 1,080 Raw sewage load COD kg/d 2,400 3,600 BOD kg/d 960 1,440 Nkj kg/d 200 300 TP kg/d 40 60 SS kg/d 1,440 2,160 1) Existing domestic load is approximately 6,500 PE

The degree of septicity of the wastewater arriving at the treatment works is not known, but

the Contractor is to allow for the fact that most of the sewage will have passed through the

rising main from the Pumping Station at the N25 that he shall have designed and

constructed. The design of the treatment works and the guarantees offered by the Contractor

shall take account of this factor.

The maximum flow entering the treatment works in Phase 2 is calculated at 1,728 m3/h (480

l/s). This quantity of flow shall be the basis for the hydraulic design of the inlet works and the

preliminary treatment units.

The peak flow to the plant, which requires treatment, is Flow to Full Treatment (FFT). The

peak flow in Phase 2 of 1,188 m3/h (330 l/s) plus any additional returned flows from sludge

thickening/dewatering shall be the basis for the hydraulic design of the pipework and other

treatment units downstream of the preliminary treatment units.

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Flows in excess of FFT (max. 1,188 m3/h in Phase 2) shall be conveyed to storm water

holding tanks. The stored storm water shall be returned to the inlet works for full biological

treatment when the storm event is over.

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Attachment G2 Compliance with Water Quality Standards for Phosphorus Regulations (S.I. No. 258 of 1998).

These regulations provide for specified improvements in water quality conditions in rivers and

lakes based on phosphorus concentrations or related water quality classifications.

The discharge from New Ross is to tidal non-sensitive waters and is therefore not governed

by SI 254 of 2001discharges in terms of a sensitive body of water. Accordingly phosphorus

removal is not deemed to be a requirement.

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Attachment G3

Impact Mitigation

The programme of improvements has commenced in that a new wastewater treatment plant

is being constructed with commissioning programmed for end 2008/ early 2009.

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Documents

Wexford County CouncilThe town of New Ross is situated on the tidal reach of the Barrow Estuary. It is located on the Wexford/Kilkenny count boundary with most of the urbanised area