Eve O'Sullivan

Subject: Attachments:

FW: MOYCULLEN WWTP MGW0133WWDA0003FOl - F I Response.doc; GalwayCoCo letter to EPA-Moycullen FI-additional Information 2012.doc; MGW0133DG0013-04F02.pdf; MGW0133DG0010-01F02.pdf; MGW0133DG0012-03F02.pdf

-----Original Message----- From: Mart in Lavelle [ ma ilto: m lavelle @Ga I wayCoCo. ie] Sent: 17 October 2012 1 5 : l l To: Wexford Receptionist Subject: FW: MOYCULLEN WWTP

For the attention of Michael Martin

-----0rigina I Message----- From: PJ Griffin [mailto:Pj.Griffin@rpsgroup.com] Sent: 17 October 2012 12:35 To: Martin Lavelle Subject: RE: MOYCULLEN WWTP

Martin, b

See attached revised response incorporating the intention to relocate the storm overflow. Can you have the attached letter printed on Galway CO CO letterhead and signed by Jim Cullen or yourself. If you let me know when i t 's ready I will have someone pick it up and send off the response.

Regards, PJ

-----Original Message----- From: Martin Lavelle [mailto:mlavelle@GalwayCoCo.ie] Sent: 17 October 2012 11:47 To: PJ Griffin Subject: Re: MOYCULLEN WWTP

Pj, Ok with me. Martin

Sent from my HTC

----- Reply message ----- From: "PJ Griffin" <Pj.Griffin@rpsgroup.com> To: "Martin Lavelle" <mlavelle@GaIwayCoCo.ie> Subject: MOYCULLEN WWTP Date: Wed, Oct 17, 2012 11:39

Martin, I have had discussions with Jim O'Connell about the possibility of relocating the sampling point such that it does not include the storm tank overflow. Jim had a look a t this on-site with the caretaker and this would involve moving the storm return pipe work such that it connected back into the outfall downstream of the sampling point. I have

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sketched up on the attached a possible route for the storm line to bypass the sampling point. There is a bit of work involved in this as it is a 350mm dia. and I have not checked interferences with services etc;. I would suggest that we state in the responses to the EPA that it is Galway County Council's intention to do this work a t a future date. If that's ok with you I will make the changes and get it over to you for signing.

Please call with any queries,

Regards,

PJ

0866006251

From: Martin Lavelle [mailto:mlavelle@GaIwayCoCo.ie] Sent: 16 October 2012 21:SO To: PJ Griffin Subject: MOYCULLEN WWTP

PJ, Have you the updated information ready to send back to EPA? Martin

[www.galway.ie/images/hc~logo_en.gif]~http://www.householdcharge.ie~[www.galway.ie/images/hc~logo~ga .gif] <http://www.householdcharge.ie>

This e-mail message has been scanned for content and cleared by MailMarshal Hosted a t Galway County Council T? an teachtaireacht r?omhphoist seo scan?ilte d??bhar agus glanta ag MailMarshal a t ? ?st?lta i gComhairle Chontae na Gaillimhe.

Correspondance is welcome in Irish or in English.

T? m?le f?ilte roimh chomhfhreagras i nGaeilge n? i mB?arla.

T? eolas a t ? pr?obh?ideach agus r?nda sa r?omhphost seo agus aon iat?n a ghabhann leis agus is leis an duine/na daoine sin amh?in a bhfuil siad seolta chucu a bhaineann siad. Mura seola? th?, n?l t? ?daraithe an r?omhphost n? aon iat?n a ghabhann leis a I?amh, a ch?ip?il n? a ?s?id. M? t? an r?omhphost seo faighte agat tr? dhearmad, cuir an seolt?ir ar an eolas thr? aischur r?omhphoist agus scrios ansin ? le do thoil.

This e-mail and any attachment contains information which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorised to read, copy or use the e-mail or any attachment. If you have received this e-mail in error, please notify the sender by return e-mail and then destroy it

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M? t? an r?omhphost seo ag teast?il uait i bhform?id eile d?an teagmh?il leis an duine a sheol chugat ?

RPS Group Ltd is a wholly owned subsidiary of RPS Group PIC. RPS Group Ltd is the parent company in the Republic of Ireland for all Irish subsidiary companies, namely: RPS Consulting Engineers Ltd, RPS Planning & Environment Ltd,

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RPS Engineering Services Ltd and RPS Mary Murphy Associates Ltd. The Registered Office of each company is: West Pier Business Campus, Dun Laoghaire, Co. Dublin, Ireland, and each company is registered a t the Irish Companies Registration Office in Dublin. Details of the companies registered numbers are as follows: RPS Group Limited - Registration Number: 91911 RPS Consulting Engineers Limited - Registration Number: 161581 RPS Engineering Services Limited - Registration Number: 99795 RPS Planning & Environment Limited - Registration Number: 160191 RPS Mary Murphy Associates Limited - Registration Number: 260533 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This e-mail message has been scanned for content and cleared by MailMarshal Hosted a t Galway County Council Is e MailMarshal, Arna Ostail ag Comhairle Contae na Gaillimhe, a rinne an teachtaireacht riomhphoist seo a scanadh agus a ghlanadh 6 thaobh abhair de.

Correspondence is welcome in Irish or in English. Ta mile failte roimh chomhfhreagras i nGaeilge no i mBearla.

Ta eolas a t6 priobhaideach agus runda sa riomhphost seo agus in aon iatan a ghabhann leis agus is don seolai amhain e. Mura seolai thu, nil tu udaraithe an riomhphost no aon iatan a ghabhann leis a Ieamh, a choipeail na a usaid. Ma ta an riomhphost se0 faighte agat t r i dhearmad, cuir an seoltoir ar an eolas t r i riomhphost a sheoladh ar ais agus scrios ansin e le do thoil.

This e-mail and any attachment contains information which is private and confidential and is intended for the addressee only. If you are not an addressee, you are not authorised to read, copy or use the e-mail or any attachment. If you have received this e-mail in error, please notify the sender by return e-mail and then destroy it.

If you need this email in an alternative format please contact the sender Ma ta an riomhphost seo ag teastail uait i bhformaid eile teigh i dteagmhail leis an duine a sheol chugat e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RPS Group Ltd is a wholly owned subsidiary of RPS Group PIC. RPS Group Ltd is the parent company in the Republic of Ireland for all Irish subsidiary companies, namely: RPS Consulting Engineers Ltd, RPS Planning & Environment Ltd, RPS Engineering Services Ltd and RPS Mary Murphy Associates Ltd. The Registered Office of each company is: West Pier Business Campus, Dun Laoghaire, Co. Dublin, Ireland, and each company is registered a t the Irish Companies Registration Office in Dublin. Details of the companies registered numbers are as follows: RPS Group Limited - Registration Number: 91911 RPS Consulting Engineers Limited - Registration Number: 161581 RPS Engineering Services Limited - Registration Number: 99795 RPS Planning 84 Environment Limited - Registration Number: 160191 RPS Mary Murphy Associates Limited - Registration Number: 260533

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . This e-mail message has been scanned for content and cleared by MailMarshal Hosted a t Galway County Council Is e MailMarshal, Arna Ostail ag Comhairle Contae na Gaillimhe, a rinne an teachtaireacht riomhphoist seo a scanadh agus a ghlanadh 6 thaobh abhair de.

Correspondence is welcome in Irish or in English. Ta mile failte roimh chomhfhreagras i nGaeilge no i mBearla.

Ta eolas a ta priobhaideach agus runda sa riomhphost seo agus in aon iatan a ghabhann leis agus is don seolai amhain e. Mura seolai thu, nil t u udaraithe an riomhphost no aon iatan a ghabhann leis a Ieamh, a choipeail na a usaid. Ma ta an riomhphost seo faighte agat t r i dhearmad, cuir an seoltoir ar an eolas t r i riomhphost a sheoladh ar ais agus scrios ansin e le do thoil.

This e-mail and any attachment contains information which is private and confidential and is intended for the addressee only.

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If you are not an addressee, you are not authorised to read, copy or use the e-mail or any attachment. If you have received this e-mail in error, please notify the sender by return e-mail and then destroy it.

If you need this email in an alternative format please contact the sender Ma ta an riomhphost seo ag teastail uait i bhformaid eile teigh i dteagmhail leis an duine a sheol chugat e

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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h a s an Chontae, Cnoc na Radharc, Gaillimh h a s an Chontae, Prospect Hill, Galway.

FonPhone: (091) 509 000 FacslFax: (091) 509 010 IdirlioWeb: w.galway.ie

w.gaillimh.ie

IasachtaKIeontais Tfhiochta Housing LoandGrants R(O91) 509 301 €3 housing@galwaycoco.ie

larratais Tithiochta Housing Applications B(O9l) 509 300 B housing@galwaycoco.ie

Timpeallacht & Treidliachta Environment & Veterinary B(O91) 476 402 Benvironment@galwaycoco.ie

Withre & lompar Roads &Transportation S(O91) 509 309 Broads@galwaycoco.ie

Acmhainnl Daonna Human Resources B(O9l) 509 303 Bhr@galwaycoco.ie

M6tarchhin Motor Taxadon e(O91) 509 099 [Xlmotortax@galwaycoco.ie

Ceadunais Tiomhna Driving Licences R(O91) 509 305 Bmotortax@galwaycoco.ie

Clhr na dToghtMin Register of Electors a(O9l) 509 31 0 Welectors@galwaycoco.ie

Seirbhisi Uisce Water Services B(O91) 476 401 Bwate@galwaymo.ie

Pobal& Fiontar Community & Enterprise B(O91) 746 860 Bcommunity@galwaycoco.ie

Pleanail Planning e(O91) 509 308 Bplanning@galwaycoco.ie

Deontais Ard Oideachais Higher Education Grants B(O91) 509 310 €ZJeducation@galwaycoco.ie

Leabharlann Library a(O91) 562 471 Binfo@galwaylibrary.ie

Comhairle Chontae na Gaillimhe Galway County Council

17" October, 201 2 I

Ad m ini strati on, Environmental Licensing Programme, Office of Climate, Licensing and Resource Use, Environmental Protection Agency, Headquarters, PO Box 3000, Johnstown Castle Estate, Co. Wexford,

Ref: DO 191-01

Re: Notice in Accordance with Regulation 20(1) of the Waste Water Discharge (Authorisation) Regulations 2007- Moycullen & Environs Waste Water Discharge License Application

Dear Sir/Madam

Further to your recent correspondence of the 2nd August, 2012, in relation to the above application, I hereby enclose as requested, further information in accordance with Regulation 20(1)) of the Regulations.

As per the instructions in the letter, we enclose the required information in the form of one original plus one copy, and include a CD-ROM in electronic searchable PDF format.

Please contact the undersigned if you require any further information or documentation.

Yours sincerely,

I / Director of Services, County Council

-- 1 *'\+. - _

Ta mile failte roirnh chornhfhreagras I nGaeilge

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1 7'h October, 201 2

Administration, Environmental Licensing Programme, Office of Climate, Licensing and Resource Use, Environmental Protection Agency, Headquarters, PO Box 3000, Johnstown Castle Estate, Co. Wexford,

Ref: DO 191-01

Re: Notice in Accordance with Regulation 20(1) of the Waste Water Discharge (Authorisation) Regulations 2007- Moycullen & Environs Waste Water Discharge License Application

Dea r Si r/Ma d am

Further to your recent correspondence of the 2"d August, 2012, in relation to the above application, I hereby enclose as requested, further information in accordance with Regulation 20( 1 )) of the Regulations.

As per the instructions in the letter, we enclose the required information in the form of one original plus one copy, and include a CD-ROM in electronic searchable PDF format.

Please contact the undersigned if you require any further information or documentation.

Yours sincerely,

Jim Cullen, Director of Services, For Galway County Council

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Galway County Council,

County Buildings

Prospect Hill

Galway

Moycullen & Environs

Waste Water Discharge Licence

(Register Number: DOl91-01)

Regulation 20( 1 ) - Further Information, Particulars and Evidence

October 201 2

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Section A: Non -Technical Summary

Update the non-technical summary to reflect the information provided in response to this notice.

The Moycullen Waste Water Treatment Plant (WWTP) is located on low-lying land to the east of Moycullen village, towards Ballyquirke West.

The waste water works collects and treats domestic and commercial effluent from a population equivalent of 3,337 and surface water from the combined sewerage system.

The WWTP consists of the following: Inlet works consisting of fine screening unit, grit removal channel and flow control facilities.

A flow splitting chamber to allow distribution of the incoming flow between the units.

Stormwater holding tank of volume 390m3, equipped with tipping buckets for flushing of the tank, and submersible stormwater return pumps. There is a 100mm storm return pipe to the inlet works.

Two aeration tanks, only one of which is normally utilised.

Two clarifiers which are both normally in operation.

Chemical precipitation storage and dosing facilities for Phosphorous removal.

A sludge pump sump which pumps the sludge directly from the secondary treatment plant and the percolating filters to the sludge thickeners.

A supernatant pump sump which pumps scum from the clarifier and supernatant from the sludge thickener and sludge dewatering units to the head of the preliminary units.

Flow measurement chambers.

Picket Fence Thickener.

Sludge Dewatering Building / Control House.

Outfall to Ballyquirke Canal via constructed wetlands.

The plant was originally constructed to cater for a design loading from a population equivalent of 500 in 1986. A Preliminary Report was prepared in 1997 which recommended upgrade of the treatment plant to a capacity of 4,000 PE in 2 Phases. The Phase 1 upgrade to cater for a population equivalent of 2,500 was completed in 1999, and Phase 2 was completed in June 2002. The plant is currently operating for a design loading from a population equivalent of approximately 3,337. The plant is operating at a maximum BOD loading of 200 kg/day. This was based on a typical BOD loading of O.OGkg/PE/day.

The WWTP is manned from 8.30am am to 5 pm Monday to Friday and is manned for 1.5 hours/day at the weekend and holidays.

A storm overflow operates from the storm holding tank when its capacity is exceeded, at flows in excess of 511/s. This overflow combines with the treated effluent and both are discharged to the wetlands and subsequently to Ballyquirke Canal via a common outfall. The final effluent from the WWTP discharges to a wetland area prior to discharge to the Ballyquirke Canal. The wetland consists of a 2400m2 reed bed and allows the final effluent from the treatment plant to undergo a further aerobic breakdown of any remaining organic matter. This overland flow wetland achieves a substantial reduction of BOD and Suspended Solids concentration. The wetlands are lined and the outlet from the wetlands discharge to Ballyquirke canal.

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The Ballyquirke Canal flows in to Ballyquirke Lough which is a proposed Natural Heritage Area (pNHA) and is also part of the Lough Corrib Special Area of Conservation (SAC). No information is available regarding the flow in the Ballyquirke Canal and it is difficult to make an estimation based on catchment characteristics as it is an artificially created waterbody and anecdotal evidence suggests that it backflows at certain times of the year.

Sampling results for 201 1/2012 for the primary discharge from Moycullen WWTP is largely compliant with the relevant legislation, except for elevated levels of Biochemical Oxygen Demand (BOD) and suspended solids on one sampling occasion and Total Phosphorus on a number of sampling occasions.

The water quality in the Ballyquirke Canal immediately downstream of the Moycullen WWTP has a number of non-compliances with respect to Surface Water and Dangerous Substances Regulations. Non-compliances were recorded in relation to Ammonia, Orthophosphate, Total Nitrogen, Chemical Oxygen Demand, Boron and Barium downstream of the Wastewater Treatment Plant. Non- compliances were also recorded upstream of the WWTP in all of these parameters except for Ammonia. The Ballyquirke Stream which connects Lake Ballyquirke to Lough Corrib and is located downstream of the Discharge Point, was given a Q-value of 3 following Biological Monitoring carried out by the EPA in the monitoring period 1995-1 997. Receiving waters upstream and downstream of the Wastewater Treatment Plant do not comply with the recommended limit of 0.035mg/l P as set out in the European Communities Environmental Objectives (Surface Waters) Regulations 2009.

I. Section B.2 Location of the Associated Waste Water Treatment Plant.

During a site visit of 23'' July, 2012, a holding lagoon adjacent to the reed bed was observed. Provide details of the function of this lagoon and state if i t is part of the Moycullen agglomeration.

Clarify if the reed bed (ICW) is within the boundary of the wastewater treatment plant and within the boundary of Moycullen agglomeration.

The holding lagoon referred to is part of a separate storm water system and is not connected to the reed bed (ICW.).

The reed bed (ICW) is within the boundary of the waste water treatment plant and within the boundary of the Moycullen Agglomeration. See attached revised drawings No.'s 1, 3 and 4.

2. Section B.4 Location of Secondary Discharge Points.

Submit full details of the discharge to ground water referred to in the 18(3)(b) response of the 21" October 2009.

The response to 18(3)(b) response of October, 2009 incorrectly refers to a discharge to ground. It has since been clarified that no such discharge exists and therefore no secondary discharge point exists. The assimilative capacity calculations provided as part of the Regulation 16 Compliance Requirements in November 2009 were calculated based on all flow being discharged to the Ballyquirke Canal and are still applicable.

3. Section E.2 Monitoring and Sampling Points.

The application identifies two sampling and flow meter chambers, one at the outlet works of the WWTP and one at the outfall from the reed bed (ICW). Confirm the type of discharge (storm, primary, secondary, etc.) being monitored at the two locations and confirm which location is being referenced to estimate the daily volume of waste water discharge to surface water and ground water in the application.

Provide the most recent monitoring results for the primary discharge (S Wl).

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4.

The discharge point at the outlet from the WWTP is the primary discharge point. No monitoring currently takes place at the discharge from the reed bed (ICW). Monitoring results for the period of January 201 1 to July 201 2 are included in the table below.

Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow Outflow

Outflow

Outflow

Outflow

Outflow

Outflow

Outflow

26/01/11 23/02/11 24/03/11 20/04/11 27/05/11 01/06/11 01 /07/11 10/08/11 02/09/11 18/10/11 30/11 /I 1 16/12/11 23/01/12 c

17/02/12 15/03/12 C

20/04/12 22/05/12 19/06/12 19/07/12

Moycullen WWTP - 201 112012 -Effluent Sampling Results

10 1 2.73 1.75 12 45 22 10 23

21.3 68 75 12 24 41 10 36 10 c

13 c

107 46 38 c

7 19 18 8 9

5.8 23.365

28.25 6

11 19 2 2 2 2

23 2 2

1 12.5 8.8

7 5.4 5.8

23.8 56.4 3.8 5.2 13 32

C 2 7

C 2 19

c 2 19

2. I 2.2

0.85 0.49 0.68

1 12.5 6.5

1.08 0.98

2.5

2.5 11.8 5.75 5.35 9.95

10.65 7

0.5 0.99 1.56 5.3

Average 32.81 10.23 11.93 2.80 5.26

This sampling point is located downstream of the location where the storm tank overflow combines with the treated effluent. It is Galway County Council's intention to divert this overflow such that it combines with the treated effluent downstream of the sampling point.

Section F. I Assessment of Impact on Receiving Ground Water.

Provide a risk screening and where necessary a technical assessment of the discharge from the waste water works percolation area in accordance with the Guidance on the Authorisation of Discharges to Groundwater, published by the Environmental Protection Agency.

As outlined earlier it has been clarified that there is no discharge to ground from the reed bed (ICW) and consequently no assessment of Impact on receiving Ground Water is required.

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