Dear Madam,

Please find enclosed 1signed original and 1copy, and 2 copies of all files in electronic format on CD - roms. Also attached the application fee of E3000.

The content of the electronic Files For on inspection the purposes2 CD-roms only. are a true copy of the original Consent of copyright owner required for any other use. hardcopy application.

Yours faithfully,

I

~ *"--e*

EPA Export 26-07-2013:23:42:03 I This is a draft document and is subject to revision.

I Environmental Protection Agency An Ghniomhoireacht um Chaomhnd Comhshooil

Waste Water Discharge Certificate of Authorisation Application

For inspection purposes only. Consent of copyright owner required for any other use.

Envi ro n menta I Protection Agency PO Box 3000, Johnstown Castle Estate, Co. Wexford Lo Call: 1890 335599 Telephone: 053-9160600 Fax: 053-9160699 Web: www.epa.ie Email: [email protected]

EPA Export 26-07-2013:23:42:03 Environmental Protection Agency Application for a Waste Water Discharge Licence Waste Water Discharge (Authorisation) Regulations 2007.

CONTENTS PAGE

SECTION A NON-TECHNICAL SUMMARY 3

SECTION B GENERAL 6

SECTION C INFRASTRUCTURE & OPERATION 12

SECTION D DISCHARGES TO AQUATIC ENVIRONMENT 16

SECTION E MONITORING 22

SECTION F EXISTING ENVIRONMENT & IMPACT OF DISCHARGES 27 For inspection purposes only. Consent of copyright owner required for any other use. SECTION G PROGRAMME IOF IMPROVEMENTS 35

SECTION H DECLARATION 41

2 EPA Export 26-07-2013:23:42:03 I SECTION A: NON TECHNICAL SUMMARY I

Wicklow County Council is applying to the Environmental Protection Agency for a wastewater discharge certificate for the existing Waste Water Works at Knockananna, Co.Wicklow. Knockananna is a village located on the outer fringes of the Wicklow Mountains, in southwest Co. Wicklow, near the border with Co. Carlow. The village is located in the Wicklow agricultural hinterland approximately 4.5 km from the town of Hacketstown.

Description of the wastewater treatment works The treatment plant at Knockananna is designed to cater for a PE of 150 and comprises a small all-steel rectangular tank having aeration and settlement zones. Influent wastewater discharges to the treatment plant via a 225mm diameter pipe. The structure is formed so that the quiescent conditions are achieved in the settling section, with the settled sludge being withdrawn through an opening at the bottom of the settling area by the movement of the liquid in the aeration section. A horizontal aerator supplies the relevant oxygen requirement and also achieves a complete mix of the incoming influents. The aerator is of a robust For inspection design purposes andonly. consists of a motor, and drive Consent of copyright owner required for any other use. shaft. The amount of aeration is controlled by a time clock incorporated in the control panel. Effluent discharges from the aeration zone into the settlement zone from which activated sludge is returned to the aeration zone under hudrostatioc head through a slot in the bottom of the tank. A scum baffle plate in front of the final weir traps any floating debris which is returned to the aeration chamber. The current loading on the plant is estimated to be 206pe (section B.8(i)) thereby signifying the plant is considerably overloaded. Treated effluent discharges to the nearby Derreen River. The plant is not manned continuously but is attended to at least once per day (including weekends) .

3 EPA Export 26-07-2013:23:42:03 The sources of emissions from the waste water works

There is only discharge point (SWl) from the treatment plant to the Derreen River (300527E, 180718N).

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.

The current loading on the plant is estimated to be 206pe thereby signifying the plant is considerable overloaded. Thus the plant does not comply with the standard required under the Urban Wastewater Directive: BOD 25mg/l, COD 125mg/l, SS 35mg/l. However, based on the upstream and downstream sample results (shown later in this report) the emissions would appear to have little adverse effect on the receiving waters. There are no plans to upgrade the plant.

The proposed technology and other techniques for preventing or, where this is not possible, reducing emissions For inspection purposes only. Consent of copyright owner required for any other use. from the waste water works

Upgrading the plant and reducing surface water misconnections would improve emissions from the wastewater works but adequate funding does not exist for this purpose.

Further measures planned to comply with the general principle of the basic obligations of the operator, i.e., that no significant pollution is caused

Monitoring carried out to date indicates that there is no significant environmental pollution arising from the emissions from the wastewater works. No further significant measures are planned.

4 EPA Export 26-07-2013:23:42:03 Measures planned to monitor emissions into the environment The treated effluent is sampled 6 times a year to ensure compliance with the Urban Wastewater Directive. The water quality is measured 10 metres upstream off the effluent pipe (aSWlu) and 25 metres downstream of the discharge point (aSWld).

Designated Site Knockananna WWTP discharges to the Scotland Brook which is situated in the Southeastern River Basin District (SERBD). The Scotland Brook is a tributary of the Derreen River, which has its own Sub Catchment Management Plan specifically devised at conserving the Pearl Mussel. However the confluence point of the Scotland Brook and the Derreen River is situated downstream of SAC (Special Area of Conservation 000781) which will therefore not be affected by the emissions from the WWTP.

Water Quality Management Plan Both the Knockananna agglomeration and the Derreen riv r are ituated within For inspection purposes only. the South Eastern River BasinConsent District. of copyright ownerThe required draft for any River other use. Basin Management Plan for the Eastern River Basin District was published in 2008.

5 EPA Export 26-07-2013:23:42:03 SECTION B: GENERAL

B. 1 Agglomeration Details

I Name of Agglomeration: Knockananna Wastewater Treatment Works

Applicant's Details Name and Address for Correspondence Name*: Wicklow County Council Address: County Buildinqs W hitegates Wicklow Town County Wicklow Tel: 0404 20100 Fax: 0404 67792 e-mail: [email protected]

I Name*: Mr. Michael Geaney

Wicklow County Council, County Buildings, Whitegates,Wicklow Town, County Wicklow Tel: 0404 20296 Fax: 0404 67792 I e-mail: [email protected]

CO-Applicant's Details Name*: Not Applicable For inspection purposes only. Address: Consent of copyright owner required for any other use.

Tel: Fax: e-mail:

Design, Build 8t Operate Contractor Details

Name*: Not Applicable Address:

Tel: Fax: I e-mail:

6 EPA Export 26-07-2013:23:42:03 ATTACHMENT B.1

Attachment included Yes No 4

8.2 Location of Associated Waste Water Treatment Plant Give the location of the waste water treatment plant associated with the waste water works, if such a plant or plants exists.

Name*: Mr. Michael Doyle Address: Knockananna Wastewater Treatment Works Knoc ka n a n na , Ti n a h el y County Wicklow

Grid ref 300675E, 181005N (6E, 6N) Level of Secondary treatment Treatment Primary None on site Telephone: Fax: None on site For inspection purposes only. e-mail: None on site Consent of copyright owner required for any other use.

ATTACHMENT 8.2

Drawing No: 0233/02 Title of the drawing: Site Layout of Knockananna Wastewater Treatment Plant Attachment included I Yes I No I I I I 1

7 EPA Export 26-07-2013:23:42:03 B.3 Location of primary discharge point(s)

The primary discharge point includes the storm overflow connection from the stormwater tanks. SW1 is located at National Grid coordinates 326740E, 208928N Type of Outfall Pipe Discharge Unique Point SWl Code Location Townland of Knockananna Grid ref (6E, 6N) 300527E, 180718N

ATTACHMENT B.3

Drawing No: 0233/03 Title of the drawing: Monitoring and sampling locations for Knockananna WWTP I Attachment included I Yes I No I I t 4

B.4 Location of secondary discharge point(s) For inspection purposes only. Consent of copyright owner required for any other use. Attachment 8.4

B.5 Location of storm water overflow point(s) ATTACHMENT 8.5

There are no storm overflow points for Knockananna wastewater treatment plant Attachment included w

8 EPA Export 26-07-2013:23:42:03 has been obtained is being processed is not yet applied for is not required 4

B.7 Other Authorities

B7(i) Shannon Free Airport Development Company (SFADCo.) area There is no discharge located within the Shannon Free Airport Development Company area.

B7(ii) Health Service Executive region The Knockananna wastewater treatment plant is located in the South eastern Region Name: South-Eastern Region Address Lacken, Dublin Road

Kilkenny For inspection purposes only. Consent of copyright owner required for any other use. Tel: 0567784100 Fax: 0404 69044 Web: www .seh b. ie

9 EPA Export 26-07-2013:23:42:03 B.S.(i) Population equivalent of agglomeration

Calculations: Method A: The population equivalent calculation was determined on the basis of BOD levels of the influent taken 13/08/09 where the average is 426.4 mg/l. Average daily influent flow was 31.37 m3/day

PE = (426.4 x 1000) x (31.37/1000)/60 = 223 PE. Design PE of plant = 150 PE.

Method B: Based purely on a recent survey of inflow volumes carried out between 6/8/09 and 20/8/09 (see table D.l(a)) the average daily volume was 41.649m3. On the basis of of 2001/h/d this gives a result of 208pe

Method C: The following is a spreadsheet based on a recent house count:

For inspection purposes only. Knock ConsentP.E of copyright owner requiredUnit for loading any other use. DWF

Ilhdlda y I I day 55 houses I 165 200 I 33000 School 1 60Students 1 60 3600 1 Mobile Home I 2 Pubs I 3staffeach I 60 360 I 20pldayeach 1 10 400 - Total influent (Vd) 37360 Equivalent PE 187 Plant capacity 150

There average of the three results is therefore 206pe

10 EPA Export 26-07-2013:23:42:03 B.S(ii) Pending Development Information on the calculated population equivalent (pe) to be contributed to the wastewater plant as a result of those planning permission s granted:

Due to the plant being overloaded no permissions have been granted in recent times and there is a moratorium on proposed developments pending upgrading at some future date

ATTACHMENT 8.8 (iii) Fees The appropriate fee (€3,000) has been included with this application. Appropriate fee included F-F-i

B.9 Capital investment programmme For inspection purposes only. Consent of copyright owner required for any other use. Knockananna Wastewater Treatment Work is not included in any current investment programme.

B.10 Significant correspondence There are no Section 63 notices issues by the Agency in relation to Knockananna wastewater treatment works

B.11 Foreshore Act licenses There is no Foreshore Act Licence issued in relation to discharges from the wastewater plant issued under the Foreshore Act 1933.

11 EPA Export 26-07-2013:23:42:03 SECTION C: INFRASTRUCTURE & OPERATION

C.1 Operational Information Requirements

The waste water treatment plant at Knockananna is a small sewage treatment plant utilising the natural process of biological oxidation to purify the waste water. The main components of the plant are, Inlet works Aeration Rotor, Aeration Tank, Final Settlement Tank, Final Outlet Weir, Return Sludge System,

The functions of the various components are as follows:

1. Inlet works The influent pipe is a 150mm diameter pipe. Complete mixing and For inspection purposes only. Consent of copyright owner required for any other use. circulation of the incoming influents are achieved by the aerator which also supplies the relevant oxygen requirements to the mixed liquor.

2. Aerator The prime purpose of the aerator is to achieve a complete mixing and circulation of the incoming influents and to supply the relevant oxygen requirement to the mixed liquor. The aeratior is of robust design and consists of a motor, drive shaft. Varying the depth of the rotor, which is achieved by adjusting the final outlet weir, can vary the rate of oxygen transfer. To ensure the most effective use, the rotor is fitted with a timer control incorporated in the control panel.

12 EPA Export 26-07-2013:23:42:03 3. Aeration Tank The waste water treatment plant comprises a small all steel rectangular tank having aeration and settlement zones. The aeration tank acts as a reservoir and holds the bacteria which feed on crude sewage. The aeration compartment is designed so that when the rotor is running the mixed liquor is easily circulated. The action of the liquor is such that it helps to draw sludge from the settlement tank hopper and also draw back any scum that may appear on top of the settlement tank.

4. Final Settlement Tank The settlement tank is used to separate the sludge from the final effluent. Two of the walls of the settlement tank are at a slope of 60 degrees with an open slot at the bottom to return the sludge to the aeration compartment. Mixed liquor is transferred to the settlement tank from the aeration compartment via two low velocity pipes which direct the liquor downwards to help start the separation process. Final effluent is discharged via the ’V’ notch outlet weir which also controls the immersion of the rotor.

For inspection purposes only. 5. Purification DrinciDlesConsent of copyright owner required for any other use.

The main constituent of pollution present in a domestic effluent is

i* carbonaceous matter which causes high BOD’S. In order to reduce this k load vast number of bacteria is cultivated in the aeration tank. The bacteria feed on the carbonaceous matter in the influent and break it down into stable products. Oxygen is supplied to the bacteria by means of the aerator which produces a fine spray of liquid droplets in which oxygen transfer takes place from the air to the liquid. The degree of immersion of the rotor blades can be varied to regulate the supply of oxygen to the bacteria. The rotor is also essential for promoting the circulation and mixing of the ditch liquors. As the bacteria break down the carbonaceous matter it is converted into stable mineral compounds particles of which are surrounded by certain types of bacteria and larger microorganisms. The bacteria themselves must then be reduced in

13 EPA Export 26-07-2013:23:42:03 number in the ditch. This is carried out by higher organisms such as protozoa, which digest a percentage of the bacteria. Whereas the majority of the bacteria are free swimming, the protozoa found in the ditch are not. These live on particles of inert mineral matter in the ditch, which come together to form a floc. This is most important for the floc containing the bacteria and protozoa is necessary for the breakdown of sewage. It is usually expressed as the mixed liquor suspended solids, which are usually about 4,000 mg/l.

6. Wastewater treatment unit This consists of a small sewage treatment plant utilising the natural process of biological oxidation to purify the waste water. Treated effluent discharges to the adjacent Derreen river via a 150mm diameter open pipe at the primary discharge point (SWl), which is located at 300527E, 180718N.

7. Treatment Plant Desian CaDacitv

The plant was designed to treat a population equivalent of 150 PE. Infiltration of surface water is a problem during wet weather.

For inspection purposes only. A recent survey of theConsent influent of copyright toowner the required plant for any other indicates use. an average loading of 206pe thereby indicating that it is considerably overloaded

Attachment included Yes No

ATTACHMENT C.1

Drawing No: 0233/04 Title of the drawing: Schematic for Knockananna WWTP.

14 EPA Export 26-07-2013:23:42:03 C.1.1. Storm Water Overflows

I 1 I

I 1 I

C.2 Outfall Design and Construction Treated effluent flow from the wastewater treatment plant discharges to the adjacent Derreen river via a 150mm diameter open pipe at the primary discharge point SWl (300527E,180718E). On its way, it combines with underground spring water before discharging to the river. For inspection purposes only. Consent of copyright owner required for any other use.

15 EPA Export 26-07-2013:23:42:03 SECTION D: DISCHARGES TO THE AQUATIC ENVIRONMENT

D.1 Discharges to Surface Waters

In relation to the web based Table D.l(i)(b) for the primary discharge point SW1 - Emissions to surface water - Characteristics of the Emission, this table was filled out using an average of the two sample results taken by Emerald Environmental Services, Maynooth, Co. Kildare on the 27/7/09 and 24/8/09.

Note: Total Nitrogen = Kjeldhal Nitrogen + TON TON = Nitrate + Nitrite

Where monitoring information is available for the influent to the plant this data should also be provided in response to Section D.I.

Attachment D.1

For inspection purposes only. Attachment included Consent of copyright owner required Yesfor any other use. No 4

16 EPA Export 26-07-2013:23:42:03 Table D.l (i)(a): EMISSIONS TO SURFACE/GROUND WATERS (primary discharge point)

Discharge point code: SW1 Local authority reference number I SWl Source of emission Knockananna wastewater treatment works Location: Town land of Knockananna Grid ref (12 digits, 6E, 6N) 300527E, 180718N Name of receiving waters: Scotland Brook / Derreen River / Slaney Water Body River water body River basin district Southeastern River Basin District Designation of receiving waters None Flow rate in receiving waters No dry weather flow information is available No 95 percentile flow information is available Additional comments (e.g. commentary on zero flow Flowmeter fitted to effluent pipe for 14 days. or other information deemed of value) I No dry weather flow data is available

Start Finish 24 hour flow

00.00 Thursday 5/08/2009 00.00 Thursday 6/08/2009 22.133

00.00 Friday 6/08/2009 00.00 Sunday 7/08/09 31.933

00.00 Saturday 7/08/2009 00.00 Monday 8/08/09 32.500

00.00 Sunday 8/08/2009 For 00.00inspection Tuesday purposes only. 9/08/09 35.600 Consent of copyright owner required for any other use.

00.00 Monday 9/08/2009 00.00 Wednesday 10/08/09 39.500

00.00 Tuesday 10/08/2009 00.00 Thursday 11/08/09 32.500

00.00 Wednesday 1 1/08/2009 00.00 Tuesday 12/08/09 35.067

00.00 Thursday 12/08/2009 00.00 Wednesday 13/08/09 32.300

00.00 Friday 13/08/2009 00.00 Thursday 14/08/09 29.033

00.00 Saturday 14/08/2009 00.00 Friday 15/08/09 55.967

00.00 Sunday 15/08/09 00.00 Saturday 16/08/09 29.000 I 00.00 Monday 16/08/09 I 00.00 Sunday 17/08/09 I 28.033 I 00.00 Tuesday 17/08/09 00.00 Monday 18/08/09 31.533

00.00 Wednesday 18/08/09 00.00 Tuesday 19/08/09 75.933 00.00 Thursday 19/08/09 00.00 Thursday 20/08/09 109.700 Average 24 hour flow 41.649

17 EPA Export 26-07-2013:23:42:03 Emission details:

Normal per day 41.649m3 Max'per day 109.7 m3 Max hourly rate 19.0m3 Period of emission 365 dayslyear Dry weather flow 0.00048205 m3/sec

Date BOD Flow P.E. 13/8/09 426.4mgll 31.37m3 223

Table D. 1(i)(b): EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (primary discharge point) Discharge point code: SW1

I I As discharged I Substance Units of Sampling period Max Daily average Kglday measurement

For inspection purposes only. Consent of copyright owner required for any other use.

For Orthophosphate: this monitoring should be undertaken on a sample filtered on 0.45um filter paper For Phenols: USEPA Method 604, AWWA Standard Method 6240, or equivalent

18 EPA Export 26-07-2013:23:42:03 Table D.1 (i)(c): DANGEROUS SUBSTANCE EMISSIONS TO SURFACE/GROUND WATERS - Characteristics of the emission (primary discharge point) Discharge point code: SW1 As discharged Substance Units of Sampling method Max daily average Kg/day measurement

Nickel ugll Grab <1 Zinc ugll Grab 7 0.0028 Boron ugll Grab 30.5 0.0012 Cadmium ugll Grab C1 Mercury ugll Grab

19 EPA Export 26-07-2013:23:42:03 Results of influent samples taken by Wicklow Co. Council are in the table below:

Note: = For inspection purposes only. Amm(N) Ammonia(N) mg/l Consent of copyright owner required for any other use. BOD = Biochemical Oxygen Demand mg/l COD = Chemical Oxygen Demand mg/l Cond = Conductivity @ 2OoC Ortho- phos = Ortho phosphates mg/l SS = Suspended Solids mg/l TON = Total Oxidised Nitrogen (N)

20 EPA Export 26-07-2013:23:42:03 Copper ugA 11 2 For inspection purposes2 only. 4 3 3 Consent of copyright owner required for any other use. Cyanide mgA c0.002 0.003 0.004 0.015 0.005 0.004 Flouride mg/l 0.16 0.32 0.24 c0.02 0.05 0.06

I Barium ug/l 3 22 20 3 15 14

These results were grab samples and as such may not be a true representation of the influent figures for Knockanna wastewater treatment works

21 EPA Export 26-07-2013:23:42:03 D.2 Tabular data on discharge points

PT-CD PT-TYPE LA-NAME RWB-TYPE RWB-NAME DESIGNATION EASTING NORTHING VERIFIED SW1 PRIMARY WICKLOW RIVER KNOCKANANNA NONE 300527E 180718N Yes CO. CO.

SECTION E: MONITORING - KNOCKANANNA

E. 1 Wastewater discharge frequency and quantities - existing and proposed: Indicate if composite sampling or continuous flow monitoring is in place on the primary or any other discharge points. Detail any plans and timescales for the provision of composite sampling and continuous flow meters

There are no in situ samplers on the influent or effluent pipes at Knockanna wastewater treatment works. The treated influent and effluent is manually For inspection purposes only. sampled six times a year byConsent Wicklow of copyright Co. owner requiredCouncil for any otherto use.ensure that the effluent complies with the Urban wastewater Directives 2001 to 2006. The water quality of the receiving waters is measured 25 metres downstream of the primary discharge point SWl at monitoring point aSWld (300520E, 180654N) and IO metres upstream at monitoring point aSWlu (300529E, 180740N) of the primary discharge point SWl

Identification code for Frequency of discharge Quantity of wastewater discharge point (days/ann .) discharge (m3/ann) sw1 365 15202

22 EPA Export 26-07-2013:23:42:03 The Council has provided 24 composite samplers on the discharge line at a number of its waste water treatment plants in recent years and proposes, subject to financial allocations, to extend this to other plants such as Knockananna in future years.

E.2. Monitoring and Sampling Points

The Environmental Laboratory of Wicklow County Council monitors the wastewater treatment plants in County Wicklow in accordance with Urban Wastewater Regulations and EPA guidance. The sampling programme is reviewed each year to account for changes in population, treatment performance and legislation/EPA advice. Knockananna is monitored 4 times per year. The wastewater (influent, effluent and mixed liquor) and receiving water (upstream and downstream river samples) are sampled at designated sampling points. Sampling at all of the monitoring points in the agglomeration is grab samples. Wicklow County Council is committed to providing a safe place of work at all our treatment plants including safe access to sampling points. The analysis of samples taken from the wastewater treatment plant takes place on the day of sampling. There is a documented test procedure for For inspection purposes only. Consent of copyright owner required for any other use. each analytical method used in the laboratory based on APHA/AWWA 'Standard Methods for the Examination of Water & Wastewaters' or UK Standing Committee of Analysts 'Methods for Examination of Waters and Related Materials'. As part of our quality control procedures known concentrations of check standards are analysed with each sample run. The analytical equipment is maintained and calibrated in accordance with the manufacturers instructions and standard operating procedure. The environmental laboratory also participates in the EPA's intercalibration programme and is included on the List of Approved Laboratories 2007 (EPA Website www.epa.ie) for many tests including BOD, COD, TSS, Ammonia, Nitrate and Phosphate.

23 EPA Export 26-07-2013:23:42:03 Extract from EPA website: “Section 66 of the Environmental Protection Agency Act 1992 provides for the establishment of an intercalibration programme for the purpose of assessing analytical performance and ensuring the validity and comparability of environmental data for laboratories, which submit data to the Agency. It also provides for the establishment of a register of quality-approved laboratories, which would normally be expected to send data to the Agency. This register lists, on a parameter-by-parameter basis, the laboratories, which performed satisfactorily in the EPA intercalibration programme for the previous year. The register is updated annually. The objective criteria for inclusion in the register are listed below.

Criteria for compliance: 4 satisfactory returns from 5 or 3 satisfactory returns in consecutive rounds or current laboratory accreditation Criteria for pH require 3 returns within 0.20 pH units of reference concentration and 1return within 0.30 units.”

For inspection purposes only. Consent of copyright owner required for any other use.

24 EPA Export 26-07-2013:23:42:03 The 2009 environmental monitoring programme for all of the Council’s Waste Water Treatment Plants, which includes Knockananna is as follows: Table E.2 Wastewater treatment plant monitoring register 2009 WWTP I Jan I Feb 1 Mar I Apr 1 May I Jun 1 Jul 1 Aug 1 Sep I Oct I Nov 1 Dec I I I I I I I I I I I I

For inspection purposes only. Consent of copyright owner required for any other use.

E.3 Tabular data on monitoring and sampling points

The monitoring points are detailed in the following table:

Table E.3

25 EPA Export 26-07-2013:23:42:03 E.4 Sampling data The table below shows the results of samples taken of the effluent to Knockananna wastewater treatment works by Wicklow Co. Council

For inspection purposes only. Consent of copyright owner required for any other use.

Upstr 10m 03-Jun-09 0.101 <0.9 152 9.89 0.008 0.023 6.28 7 1.48 Upstr 10m 18-Aug-09 <0.003 <1.2 138 9.08 <0.004 0.023 5.59 <2 1.08 Upstr 10m 22-Sep-09 <0.003 4.2 147 9.86 0.005 0.016 7.3 <2 1.32 Upstr 10m 17-NOV-09 0.041 <1.3 102 10.53 <0.004 0.038 6.27

26 EPA Export 26-07-2013:23:42:03 SECTION F: EXISTING ENVIRONMENT AND IMPACT OF DISCHARGES

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

There is no development proposed at the waste water Plant at Knockananna, which is of a class specified under Article 24 (First Schedule) of the Environmental Assessment Regulations and which would require an Environmental Impact Statement to be carried out. Knockananna WWTP discharges to the Scotland Brook which is a tributary of the Derreen River, which in turn has its own Sub Catchment Management Plan specifically devised at conserving the Pearl Mussel. However the confluence point between the Brook and the Derreen River is situated downstream of SAC (Special Area of Conservation), Site Code 000781. An Appropriate Assessment of the impacts of the emissions on the SAC is therefore not required. The Derreen river discharges to the Slaney River which further flows through Bunclody, Enniscorthy and finally Wexford to the Irish Sea. For inspection purposes only. Consent of copyright owner required for any other use.

Impact on receiving surface water

The effluent samples from the Knockananna Wastewater Treatment Plant comply with the requirements under the Urban Wastewater Directive of BOD 25 mg/l, COD 125 mg/l and SS of 35 mg/l.

Comparing the results for the monitoring point upstream of the primary discharge point at aSWlu, as shown in Tables F.1 (i)(a) with the results for the monitoring point downstream of the primary discharge at aSWld, as shown in Tables F.1(i)(b) it appears that the existing emissions have little negative impact on the receiving environment. In regard to the Water Quality (Dangerous Substances) Regulations, 2001 it can be seen that the samples are all below the limits.

27 EPA Export 26-07-2013:23:42:03 Table F. l(i)(a): SURFACE/GROUNDWATER MONITORING - downstream of primary discharge point

1 Discharge point code: 1 sw1 I Monitoring point code I aSWld I Grid ref (12 digits, 6E, 6N) 1300520E, 180654N

Sampling Limit of Analysis method / Parameter Results (mg/l) method quantification technique 2410810 Date 27/07/09 Grab 9 PH 6.92 I 6.81 I Grab pH meter Tem perature I 14.5 I 14.0 I Grab Thermometer probe Electricical Electrical conductivity 153 126 Grab conductivity probe Suspended solids 112 7 Grab Gravimetriclevaporation

Ammonia (as N) 0.40 0.20 Grab Salicylate BOD 2.42 9.7 Grab 5 day BOD demand COD 32 53 Grab 3 I Acid digestion Dissolved Oxygen 8.75 6.3 Grab 1 I Oxygen probe Hardness (as Titration CaC03) Total Nitrogen (as TNT Persulfate digestion

Nitrite (as N) 0.003 <0.002 Grab 0.002 Diazotisation For inspection purposes only. Consent of copyright owner required for any other use. Nitrate (as N) 0.5 0.1 Grab 0.3 Cad mi u m reduction Total Phosphorus PhosVer and acid 0.28 0.25 Grab 0.02 (as P) Persulphate digestion Orthophosphate (as I 0.21 0.18 Grab Abscorbic acid P) 1 1 Sulphate (S04) 0 0 Grab SulfaVer 4

Phenols (Sum) <0.01 0.02 Grab

For Orthophosphat e. this monitoring should be undertaken on a sample filtered on 0.45um filter paper For Phenols USEPA Method 604, AWWA Standard Method 6240, or equivalent

28 EPA Export 26-07-2013:23:42:03 Table F.l(i)(b): SURFACE/GROUNDWATER MONITORING (Dangerous substances) - downstream of primary discharge point Discharge point code: 1 SWl 1 Monitoring point code 1 aSWld I I Grid ref (12 digits, 6E, 6N) I300520E, 180654N I

Limit of Sampling Analysis method/ Parameter Results quantificati method technique I on 27/07/0 24/08/0 Date 9 9 Atrazine (ug/l) <0.1 <1 Grab 0.1 ______IGC-MS Dichloromethane (ug/l) <3 <3 Grab 3 Simazine (ug/l) <1 <1 Grab 0.1 Toluene (ug/l) I <1 I <1 I Grab I 1 I HeadspaceGC-MS I

Xylenes (ug/l) <3 <3 Grab 2 Headspace GC-MS Arsenic (ug/l) <1 1 Grab 0.75 ICP-MS Chromium (ug/l) <1 8 Grab 1 ICP-MS

Copper (ug/l) 2 3 Grab 1.6 ICP-MS Cyanide (ug/l) 0.004 0.004 Grab 2 Pyridine-Pyrazalone Flouride (ug/l) 0.24 0.06 Grab 20 SPADNS Lead (ug/l) <1 <1 Grab 0.4 ICP-MS For inspection purposes only. Nickel (ug/l) <1 Consent<1 of copyright Grabowner required for any other1.5 use. ICP-MS

Zinc (ug/l) 2 4 Grab 5 ICP-MS

Boron (ug/l) < 10 13 Grab 20 ICP-MS Cadmium (ug/l) 3 <1 Grab 0.22 ICP-MS Mercury (ug/l)

Barium (ug/l) 15 14 Grab 1 ICP-MS

29 EPA Export 26-07-2013:23:42:03 Table F. l(i)(a): SURFACE/GROUNDWATER MONITORING - upstream of primary discharge point

I Discharge point code: 1 SWl Monitoring point code aSWlu Grid ref (12 digits, 6E, 6N) 300529E, 180740N

Sampling Limit of Analysis method / Parameter Results (mg/l) method quantification technique Date 27/07/09 24/08/09 Grab PH 6.92 6.81 Grab 2 pH meter Temperature (oC) 14.5 14.0 Grab 0.1 Thermometer probe Electrical conductivity Electricical conductivity 153 126 Grab 20 probe Suspended solids (mg/l) 12 7 Grab 1 Gravimetric/evaporation Ammonia (as N) (mg/l) 0.4 0.20 Grab 0.02 Salicylate Biochemical oxygen 2.42 9.7 Grab 2 5 day BOD demand demand Chemical oxygen 32 53 Grab 3 Acid digestion demand Dissolved Oxygen 8.75 6.3 Grab 1 Oxygen probe (ms/l) For inspection purposes only. Consent of copyright owner required for any other use. Hardness (as CaC03) 70 52.5 Grab 17.5 Titration (mg/l) Total Nitrogen (as N) 1.1 3.7 Grab 0.5 TNT Persulfate digestion (mg/l) Nitrite (as N) (mg/l) 0.003 <0.002 Grab 0.0002 Diazotisation Nitrate (as N) 0.5 0.1 Grab 0.3 Cadmium reduction PhosVer and acid Total Phosphorus (as P) 0.28 0.25 Grab 0.02 Persulphate digestion Orthophosphate (as P) 0.21 0.18 Grab 0.02 Abscorbic acid Sulphate (S04) (mgll) 0 0 Grab 2 SulfaVer 4 Phenols (Sum) (mg/l) <0.01 0.02 Grab 0.01 H PLC

For Orthophosphate: this monitoring should be undertaken on a sample filtered on 0.45um filter paper For Phenols: USEPA Method 604, AWWA Standard Method 6240, or equivalent

30 EPA Export 26-07-2013:23:42:03 Table F. l(i)(b): SURFACE/GROUNDWATER MONITORING (Dangerous substances) - upstream of primary discharge point Discharge point code: SWI Monitoring point code aSWlu 1 Grid ref (12 digits 6E 6N) I300529E, 180740N I

Limit of Sampling Analysis method/ Parameter ResuIts quant ificat i method techniaue on I Date I 27/07/09 I 24/0 8/0 9 Atrazine (ug/l) <1 <1 Grab 0.1 GC-MS I I Dichloromethane Grab 3 Headspace GC-MS (ug/l) 0.1 Simazine (ug/l) <1 <1 Grab GC-MS <1 Toluene (ug/l) <1 Grab 1 I Headspace GC-MS

Tributyltin (ug/l) I C0.02 I <0.02 Grab 0.02 GC-MS Grab 2 Headspace GC-MS

Arsenic (ug/l) <1 1 Grab 0.75 ICP-MS <1 Chromium (ug/l) 8 Grab 1 ICP-MS 1.6 Copper (ug/l) 2 3 Grab ICP-MS Cyanide (ug/l) 0.004 0.004 Grab 2 Py ridi ne- Py raza lone Flouride (ug/l) 0.24 0.06 For inspection purposes only. Consent of copyright owner required for any other use.0.4 ICP-MS Grab 1.5 Nickel (ug/l) Grab ICP-MS Zinc (ug/l) Grab 5 ICP-MS

Boron (ug/l) Grab 20 ICP-MS Cadmium (ug/l) 83 <1 Grab 0.22 ICP-MS Grab 0.01 AF Spectrometry <1 1 Selenium (ug/l) Cl Grab ICP-MS 20 Barium 14 Grab 1 ICP-MS

Discharge points

There is only one primary discharge point from Knockananna wastewater treatment plant to the Scotland Brook with no other discharge points.

31 EPA Export 26-07-2013:23:42:03 Groundwater Emissions

There are no discharges to groundwater from the Knockananna wastewater works. Knockananna wastewater treatment works discharges to the Scotland Brook, Derreen river which in turn discharges to the Slaney River flowing through Bunclody, Enniscorthy Wexford to the Irish Sea. There is no biological data for the receiving waters (i.e. Q values). Existing data is confined to upstream and down stream data as supplied in this application.

Both the Scotland Brook and the Knockananna agglomeration are within the Southern Eastern River Basin District. A water quality management plan or catchment management plan for the South Eastern River Basin Project (SERB) is currently being drafted. It is hoped it will be voted in (incorporating any changes required by the public) and operational in January/February 2010. The SERB management plan will set out that the biological rating of the river must be maintained indefinitely or improved.

Dangerous substances

The emissions of the main polluting substances (as defined in the Dangerous

Substances Regulations S.I. No. For 12 inspection of 2001)purposes only. do not impair the environment. Consent of copyright owner required for any other use.

Water abstractions

There are no water abstraction points downstream of the discharge point of Carnew Wastewater Treatment Works.

Significant effects due to emissions

The receiving water is not a site 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. It is a not a site whose details have been transmitted to the Commission in accordance with Regulation 5(4) of the Natural Habitats Regulations, or 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.

32 EPA Export 26-07-2013:23:42:04 0 The site is not adopted by the European Commission as a site of Community importance for the purposes of Article 4(2) of Council Directive 92/43/EEC (Council Directive 92/43/EEC of 21 May 1992 on the conservation of natural habitats and of wild fauna and flora (01 No. L 206, 22.07.1992)) in accordance with the procedures laid down in Article 21of that Directive, or a special area of conservation within the meaning of the Natural Habitats Regulations, or an area classified pursuant to Article 4( I) or 4(2) of Council Directive 79/409/EEC (Council Directive 79/409/EEC of 2 April 1979 on the conservation of wild birds (01 No. L 103, 25.4.1979)). 4 There are no measures for minimising pollution over long distances or in the territory of other states as this does not apply. There has been no modelling of the discharge from the agglomeration.

Knockananna WWTP discharges to the Scotland Brook which is situated in the Southeastern River basin District (SERBD). The Brook is a tributary of the Derreen River, which has its own Sub Catchment Management Plan specifically For inspection purposes only. Consent of copyright owner required for any other use. devised at conserving the Pearl Mussel. However the confluence point between the Brook and the Derreen River is situated downstream of SAC (Special Area of Conservation 000781). An initial screening (below) confirms that an c, Appropriate Assessment of the impacts of the emissions to the SAC is not required.

33 EPA Export 26-07-2013:23:42:04 Initial screening for Knockananna wastewater treatment works 1. Is the development in or on the boundary of a nature conservation site NHA/SAC/SPA? NO 2. Will nationally protected species be directly impacted? Wildlife Acts (1997 and 2000) Flora Protection order (S.I.94 of 1999) NO 3. Is the development a surface water discharge or abstraction in the surface water catchment or immediately downstream of a nature conservation site with water dependant qualifying habitats/species? NO 4. Is the development a groundwater discharge or abstraction in the groundwater catchment or within 5 km of a nature conservation site with water-dependant qualifying habitats/species? NO 5. Is the development in the surface water or groundwater catchment of salmonid waters? NO 6. Is the treatment plant in an active or former floodplain or flood zone of a river, lake, etc? NO 7. Is the development a surface discharge or abstraction to or from marine waters and within 3 km of a marine nature conservation site? NO For inspection purposes only. 8. Will the project in combinationConsent of copyright owner with required other for any other projects use. (existing and

proposed) or changes to such projects affect the hydrology or water levels of sites of nature conservation interest or the habitats of protected species? NO

Measures of Minimising Pollution There are no measures for minimising pollution over long distances or in the territory of other states as this does not apply.

Modelling of discharges There has been no modelling of discharges from the agglomeration

34 EPA Export 26-07-2013:23:42:04 F.2 Tabular Data on Drinking Water Abstraction Point(s)

There is no drinking water abstraction point downstream of the waste water works.

______~~ ~ SECTION G: PROGRAMMES OF IMPROVEMENTS

G.1 Compliance with Council Directives

For inspection purposes only. Consent of copyright owner required for any other use.

Attachment included Yes No 4

35 EPA Export 26-07-2013:23:42:04 6.4 Storm Water Overflow There is no storm water overflow within the Knockananna wastewater collection system. At the wastewater treatment plant, in times of heavy rainfall, the influent overflows the inlet screen and discharges to the Scotland Brook at discharge point SW2. There is no programme of proposed improvements. Attachment included w

For inspection purposes only. Consent of copyright owner required for any other use.

36 EPA Export 26-07-2013:23:42:04 For inspection purposes only. Consent of copyright owner required for any other use.

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EPA Export 26-07-2013:23:42:04 For inspection purposes only. Consent of copyright owner required for any other use.

EPA Export 26-07-2013:23:42:04 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.

4 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 Ap pl i ca nt's behalf, or any other person.

For inspection purposes only. Consent of copyright owner required for any other use.

.."_ (on behalf of

EPA Export 26-07-2013:23:42:04 I SECTION I: JOINT DECLARATION I

I hereby make application for a waste water discharge Iicence/revised licence, pursuant to the provisions of the Waste Water Discharge (Authorisation) Regulations, 2007 (SI. 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 A p pI i ca nt 's behalf, or any other person.

Lead Authoritv

Signed by : Date : (on behalf of the organisation)

Print signature name: For inspection purposes only. Consent of copyright owner required for any other use.

Position in organisation:

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:

42 EPA Export 26-07-2013:23:42:04