DISCHARGES TO THE AQUATIC ENVIRONMENT

Transcription

1 RPS Consulting Engineers SECTION D: DISCHARGES TO THE AQUATIC ENVIRONMENT Advice on completing this section is provided in the accompanying Guidance Note. Give particulars of the source, location, nature, composition, quantity, level and rate of discharges arising from the agglomeration and, where relevant, the period or periods during which such emissions are made or are to be made. The applicant should address in particular all discharge points where the substances outlined in Tables D.1(i), (b) & (c) and D.1(ii), (b) & (c) of Annex 1 are emitted. Where it is considered that any of the substances listed in Annex X of the Water Framework Directive (2000/60/EC) or any of the Relevant Pollutants listed in Annex VIII of the Water Framework Directive (2000/60/EC) are being discharged from the waste water works or are seen to be present in the receiving water environment downstream of a discharge from the works (as a result of any monitoring programme, e.g., under the Water Framework Directive Programme of Measures) the applicant shall screen the discharge for the relevant substance. 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. Where monitoring information is available for the influent to the plant this data should also be provided in response to Section D.1. Supporting information should form Attachment D.1 Attachment included Yes No MDW0350RP AO3 EPA Export :01:23:37

2 Attachment D.1 - Discharges to Surface/Ground Waters EPA Export :01:23:37

3 RPS Consulting Engineers ATTACHMENT D.1: Discharges to Surface Waters Table Blessington Agglomeration has one discharge of treated waste water at point SW1(P). The wider description of this point can be found in Attachment C.2 in Infrastructure & Operation Section. There is no secondary discharge point and storm water overflow discharge point from Blessington Waste Water Treatment Plant. Attachment D.1 contains details of waste water discharges from primary discharge point SW1(P). Data relating to emission from the primary discharge point SW1(P), to surface water were based on data received from Operator Veolia. In order to complete Table D.1 (a) and (b), the maximum values recorded from 2007 were chosen. The influent is monitored and sampled in the Inlet Sampling Chamber located after the Inlet Screens and Grit Removal Sump as shown on Drawing No. MDW0350/DG D.1. Parameters sampled at this location are listed below: - Flow (m 3 /hrs) - COD (mg/l O 2 ) - BOD (mg/l O 2 ) - ph - temperature - Suspended Solids (mg/l) - NH 3 -H (mg/l) - NO 3 (mg/l) - NO 2 (mg/l) - Total Nitrogen (mg/l) - PO 4 3- (mg/l) COD, ph and temperature are measured by AutoSampler. More detailed sampling data can be found in Attachment E.2 Monitoring and Sampling Points, Monitoring Section. MDW0350RP AO3 EPA Export :01:23:37

4 Blessington Waste Water Treatment Plan WWD Application (Version 4/08) RPS Consulting Engineers TABLE D.1(i)(a): EMISSIONS TO SURFACE/GROUND WATERS (Primary Discharge Point) Discharge Point Code: SW1 (P) Source of Emission: 225mm outfall from Blessington Waste Water Treatment Plant Location: Grid Ref. (12 digit, 6E, 6N): Golden Falls Lake E, N Name of receiving waters: River Basin District: Designation of receiving waters: Golden Falls Lake Eastern pnha Flow rate in receiving waters: 1.55 m 3.sec -1 Dry Weather Flow Emission Details: (i) Volume emitted 1.53 m 3.sec -1 95%ile flow Normal/day m 3 Maximum/day m 3 Maximum rate/hour 46.37m 3 Period of emission (avg) 60 min/hr 24 hr/day 365 day/yr Dry Weather Flow 16m 3 /sec MDW0350RP AO3 EPA Export :01:23:37

5 RPS Consulting Engineers TABLE D.1(i)(b): EMISSIONS TO SURFACE/GROUND WATERS Characteristics of the emission - (Primary Discharge Point) Discharge Point Code: SW1 (P) Number Substance As discharged Max. daily average 1 ph Temperature 9-3 Electrical Conductivity(@25 o C) 594* - Max. daily average (mg/l) kg/day 4 Suspended Solids Ammonia (as N) Biochemical Oxygen Demand < Chemical Oxygen Demand Total Nitrogen (as N) Nitrite (as N) Nitrate (as N) Total Phosphorus (as P) Orthophosphate (as P) Note 1 < Sulphate (SO 4 ) 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. (*) Electrical Conductivity (@20 o C) Based on average outflow from Blessington WWTP m 3 /day TelLab source. MDW0350RP AO3 EPA Export :01:23:37

6 RPS Consulting Engineers TABLE D.1(i)(c): DANGEROUS SUBSTANCE EMISSIONS TO SURFACE/GROUND WATERS Primary Discharge Point - Characteristics of the emission Discharge Point Code: SW1 (P) Number Substance As discharged Max. daily average kg/day kg/year (µg/l) 1 Atrazine Dichloromethane < Simazine Toluene < Tributyltin < Xylenes < Arsenic Chromium < Copper Cyanide < Fluoride Lead < Nickel < Zinc Boron Cadmium < Mercury < Selenium < Barium Based on average outflow from Blessington WWTP m 3 /day MDW0350RP AO3 EPA Export :01:23:37

7 EPA Export :01:23:37 to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny ns en Co se ru he ot.

8 Blessington Waste Water Treatment Plan WWD Application (Version 4/08) RPS Consulting Engineers 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 SW1(P) Primary Kildare Country Council Lake Golden Falls lake pnha 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 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. MDW0350RP AO3 EPA Export :01:23:37

9 Attachment D.2 - Tabular Data on Discharge Points EPA Export :01:23:38

10 Blessington Waste Water Treatment Plan WWD Application (Version 4/08) RPS Consulting Engineers ATTACHMENT D.2: Tabular Data on Discharges Points Table D.2 Tabular Data on Discharge Point PT_CD PT_TYPE LA_NAME RWB_TYP RWB_NAME DESIGNATION EASTING NORTHING VERIFIED SW1 (P) Primary Kildare Country Council Lake Golden Falls lake pnha GPS not in use MDW0350RP AO3 EPA Export :01:23:38

11 Blessington Waste Water Treatment Plan WWD Application (Version 4/08) RPS Consulting Engineers SECTION E: MONITORING Advice on completing this section is provided in the accompanying Guidance Note. 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. 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. MDW0350RP AO3 EPA Export :01:23:38

12 Attachment E.1 - Waste Water Discharge Frequency and Quantities EPA Export :01:23:38

13 Blessington Waste Water Treatment Plan WWD Application (Version 4/08) RPS Consulting Engineers ATTACHMENT E.1: Waste Water Types and Quantities Attachment E.1 contains Table E.1 (i) with estimated quantity of waste water likely to be emitted from Primary Discharge Point SW1(P). There is no secondary discharge point and storm water overflows. Table E.1 (ii) is not applicable. There are located 3 flow meters at the Blessington Waste Water Treatment Plant. The first flow meter is locating just after the inlet works and it measures influent flow to the Plant. The second flow meter measures storm water, which is returned from the Storm Water Tank to the Inlet works. The third flow meter is located after the Final Effluent Sump, which measures all the effluent that is discharged to the Golden Falls Lake. MDW0350RP AO3 EPA Export :01:23:38

14 RPS Consulting Engineers 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 (m 3 /annum) SW1(P) , Based on average outflow from Blessington WWTP m3/day MDW0350RP AO2 EPA Export :01:23:38

15 RPS Consulting Engineers 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. Attachment included Yes No MDW0350RP AO3 EPA Export :01:23:38

16 Attachment E.2 - Monitoring and Sampling Points EPA Export :01:23:38

17 RPS Consulting Engineers ATTACHMENT E.2: Monitoring and Sampling Points Attachment E.2 contains identifications and locations of all sampling and monitoring points associated with Blessington Wastewater Treatment Works. Programme for Environmental Monitoring Under the Employers requirements for Operation & Maintenance of the Works for Blessington Wastewater Treatment Plant, the Contractor is obliged to implement in full the requirements of the performance management System for Waste Water treatment Plants (PMS) as produced by the Water Services National Training Group (WSNTG). In providing this service, the Contractor undertakes sampling, monitoring and analysis of the wastewater and sludge. Requirements for Operation & Maintenance of the Works for monitoring and sampling, which are currently being carried out is presented below. Monitoring, Sampling and Analysis The Contractor carries out monitoring, sampling and analysis of the wastewater and sludge as specified in Tables E.2.1, and E.2.2. Where sampling is required for compliance and payment purposes, the samples are split samples, half of which are analysed immediately by the Contractor. The other half is kept in a suitable environment for random analysis by the Employer s Representative. Procedures and methods for the monitoring, sampling and analysis for the wastewater and sludge are provided as part of the Contractor s OMP and reported upon in the form of the Monthly Status Report. The Contractor carries out monitoring, sampling and analysis in accordance with all relevant regulations in force in Ireland at the date of submission of his tender and in particular in accordance with SI 419 of 1994: and S.I. No. 254 of 2001: Urban Waste Water Treatment Regulations, 1994 to 2001, (hereinafter called the 1994 and 2001 Regulations ) or any subsequent revisions. For compliance purposes with these Regulations, the Contractor takes a minimum of 12 samples of final effluent annually, at a frequency of one sample per month. The samples taken for this purpose are analysed by a TelLab, approved by the Employer s Representative. The analysis of samples taken at the Works are carried out in accordance with the most up to date edition of Standard Methods for the Examination of Water and Wastewater produced by The American Public Health Association (APHA); The American Water Works Association (AWWA) and The Water Environment Federation (WEF). Analysis for all parameters, specified at locations B & F in Table E.2.2 are carried out by a recognised independent laboratory, approved by the Employer s Representative, on a once monthly basis. A portion of them are then being compared. Any unusual variances between the results are brought to the attention of the Employer s Representative for discussion. The Contractor makes any necessary adjustments to his analytical procedures to ensure that any errors, considered to have occurred, are eliminated. In the event of any failure to comply with the treated wastewater discharge standards, the Contractor informs the Employer's Representative, in writing, immediately upon becoming aware of the failure. The Contractor provides details of the reasons for failure and the remedies that have been put into effect to ensure that The Works can meet the standards. The Employer or the Employer's Representative reserves the right to enter The Works, to take samples at any location and at any time without the requirement to give prior notice to the Contractor. MDW0350RP AO3 EPA Export :01:23:38

18 RPS Consulting Engineers The Contractor is, without limiting his obligations pursuant to the OMP, promptly notify the Employer s Representative of any unexpected, extreme or excessive pollutants detected in any part of the Work s operations. The Employer may vary the location or details of specified tests, or instruct the Contractor to carry out additional tests. If these varied or additional tests show that the tested Plant, Material or Workmanship is not in accordance with this Contract, the cost of carrying out these tests shall be borne by the Contractor. If, as a result of an examination, inspection, measurement or testing, any Plant, Materials, design or workmanship is found to be defective or otherwise not in accordance with this document, the Contractor is promptly make good the defect and ensure that the item complies with the appropriate standards. Notwithstanding any previous test or certification, the Contractor is, if so instructed by the Employer: Remove and replace any Plant or Materials which is not in accordance with this Contract; Remove and re-execute and other work which is not in accordance with this Contract and Execute work which is urgently required for the safety of the Works, whether because of an accident, unforeseeable event or otherwise. The Contractor ensures that all on site analysis is carried out in a safe manner and that all waste chemicals and containers are disposed of in a proper fashion. Continuous Monitoring Point at Blessington WWTP Table E.2 Continuous Monitoring Locations at Blessington WWTP Location At a point immediately before primary treatment Parameter COD, ph and temperature At the common outlet of the Wastewater Treatment Plant before final discharge COD, ph and temperature Continuous Monitoring locations are shown on Drawing No. MDW0350DG/E2, attached. Table E.2.1 Ref Location A Monitoring and Sampling Locations Inlet to treatment plant prior to storm tank Flow Meter (FM) Flow Proportional Sampler (FPS) Grab Sampling Point (GSP) Weighing Device Yes Yes B After primary treatment on every stream & after storm tank return Yes Yes with Refrigeration C After primary treatment on all streams Yes --- Yes --- MDW0350RP AO3 EPA Export :01:23:38

19 RPS Consulting Engineers Ref Location Flow Meter (FM) Flow Proportional Sampler (FPS) Grab Sampling Point (GSP) Weighing Device D At each secondary treatment unit Yes --- E F G Outlet of each secondary treatment unit & before clarification Common outlet of the treatment plant before final discharge, upstream of storm water overflow Storm water return to treatment plant Yes Yes Yes with Refrigeration Yes --- Yes --- Yes --- I Returned sludge Yes --- Yes --- J Secondary waste sludge Yes --- Yes --- K Primary waste sludge Yes --- Yes --- L M Returned liquors to secondary treatment Potable water supply to treatment plant Yes Yes Yes --- Yes N Dewatered Sludge Yes Yes Yes Yes O Imported liquid sludges Yes Yes Yes --- P Treated sludge for re-use Yes Yes Locations of above sampling points are presented on Drawing No. MDW0350DG/E.2.1, attached MDW0350RP AO3 EPA Export :01:23:38

20 RPS Consulting Engineers Table E.2.2 Schedule of Analysis Blessington Wastewater Treatment Plant PARAMETER SAMPLING LOCATION Flow m 3 /d COD mg/l BOD mg/l SS mg/l Temp ph DO Ammonia mg/l Nitrate mg/l Nitrite mg/l TKN Mg/l Total N Mg/l OFG mg/l Sulphate mg/l Salinity mg/l chloride Total P mg/l Ortho P mg/l Heavy metals MLSS mg/l SSVI Micro A C W W W D D W B C 1 C/D W D C/D C/ - D D D D D W M M D D M C C E C F C C/D W D C/D C/ - D D D D D M - - D D G C Y - Y Y Y - Y I C J C - - Y M M - M K C - - Y L C M C Legend Sample Locations A Inlet to treatment plant prior to storm tank B After primary treatment on every stream & after storm tank return C After primary treatment on all streams D At each secondary treatment unit E Outlet of each secondary treatment unit & before clarification F Common outlet of the treatment plant before final discharge, upstream of storm water overflow G Storm water return to treatment plant I Returned sludge J Secondary waste sludge K Primary waste sludge L Returned liquors to secondary treatment M Potable water supply to treatment plant Y Z Micro 1 2 Daily when flow occurs (sludge feed, cake, centrate, storm water) Weekly for first three months, monthly for the remainder of the first year and every 12 months thereafter Microscopic examination of mixed liquor Parameters used for payment purposes Sample taken monthly by Employer s Representative for compliance purposes in addition to sampling by the Contractor MDW0350RP AO3 EPA Export :01:23:38

21 RPS Consulting Engineers Table E.2.3 Schedule of Analysis Sludge Management Facility SAMPLING LOCATION Vol. m 3 /d Weigh t Kg DS Dry Solids % Organi c Matter as % of DS Total Nitroge n as% of DS Ammoniu m Nitrogen as % of DS Total Phosphoru s as% of DS Total Potassiu m as% of DS PARAMETER Zinc Mg/kg DS Copper Mg/kg DS Nickel Mg/kg DS Cadmium Mg/kg DS Lead Mg/kg DS Mercury Mg/kg DS Chromiu Faecal m Mg/kg Coliform DS MPN/g DS N - B B S S - S S S S S S S S S S O B - B S S - S S S S S S S S S S P - Y Y Y W W W W Z Z Z Z Z Z Z W Sampling Location N O P De-watered Sludge from Satellite Facilities Liquid Sludge from Satellite Facilities Treated Sludge for Re-use Parameter B S V X Y Z Every batch/load discharged at the Works Analysis shall be carried out on a stored spit sample of sludge if there is a problem with the sludge system and the quality of a batch of imported sludge is in question Monthly for first year and every two years thereafter weekly for first six months of operation and monthly thereafter Daily when flow occurs (sludge feed, cake, centrate, storm water) Weekly for first three months, monthly for the remainder of the first year and every 12 months thereafter MDW0350RP AO3 EPA Export :01:23:38

22 RPS Consulting Engineers Provision of Sampling points and safe means of access All monitoring and sampling points are accessible for Members of Blessington WWTP Staff. Sampling methods The influent is sampled in the Inlet Sampling Chamber by an automatic sampling machine which monitors temperature, ph and COD of the incoming wastewater continuously. The Final effluent Auto Sampler monitors the temperature and ph in the Final effluent Sump. Also in the Final effluent Sump is located the Quality Transmitter which measures COD. Equipment calibration Table E.2.4 Equipment Calibration Equipment Calibration Frequency Equipment Description Serial No. Weekly Sound Meter O16911 Monthly ph meter O Monthly Lab Balance Monthly Micropipette Monthly Micropipette Monthly Aeration Tank #1 D.O. 7909EEOSG00 Monthly Aeration Tank #2 D.O C05G00 Monthly Inlet ph meter - Monthly Effluent ph meter - Monthly Aeration Tank #1 MLSS - Monthly Aeration Tank #2 MLSS - Additional Monitoring Programme also carry out monitoring of Golden Falls Lake water quality on a monthly basis. This Water Quality Monitoring has been undertaken by Wicklow Country Council over the past 21 years. Samplings have been carried out in 9 locations which are shown on Drawing No. MDW0350/DG E.2.2. Grid references to these locations are listed below. Table E.2.5 Grid references to Sampling Points at Golden Falls Lake Location NORTHING EASTING asw1u N E asw1d N E asw12d N E asw13d N E MDW0350RP AO3 EPA Export :01:23:38

23 RPS Consulting Engineers Location NORTHING EASTING N E asw15d N E asw16d N E N E asw18d N E asw1u sampling location on the Golden Falls Lake (from surface water) upstream of the SW1(P), asw1d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P), asw12d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P), asw13d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P), - sampling location on the Golden Falls Lake (from 2m depth water) downstream of the SW1(P), asw15d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P), asw16d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P), - sampling location on the Golden Falls Lake (from 2m depth water) downstream of the SW1(P), asw18d - sampling location on the Golden Falls Lake (from surface water) downstream of the SW1(P). Sampled results from the above locations are included in Attachment E.4, Section: Monitoring. MDW0350RP AO3 EPA Export :01:23:38

24 EPA Export :01:23:38 to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny ns en Co se ru he ot.

25 EPA Export :01:23:38 to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny ns en Co se ru he ot.

26 EPA Export :01:23:38

27 RPS Consulting Engineers 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 6E-digit GPS Irish National Grid Reference 6N-digit GPS Irish National Grid Reference Y = GPS used N = GPS not used An individual record (i.e., row) is required for each monitoring and sampling 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 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. MDW0350RP AO3 EPA Export :01:23:38

28 Attachment E.3 - Tabular data on Monitoring and sampling Points EPA Export :01:23:38

29 RPS Consulting Engineers ATTACHMENT E.3: Tabular data on Monitoring and Sampling Points PT_CD PT_TYPE MON_TYPE EASTING NORTHING VERIFIED asw1u Primary S/M GPS not used asw1d Primary S/M GPS not used asw12d Primary S/M GPS not used asw13d Primary S/M GPS not used Primary S/M GPS not used asw15d Primary S/M GPS not used asw16d Primary S/M GPS not used Primary S/M GPS not used asw18d Primary S/M GPS not used MDW0350RP AO3 EPA Export :01:23:38

30 RPS Consulting Engineers 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. 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. Attachment included Yes No MDW0350RP AO3 EPA Export :01:23:39

31 Attachment E.4 - Sampling Data EPA Export :01:23:39

32 RPS Consulting Engineers ATTACHMENT E.4: Sampling Data This attachment contains effluent performance Standards and Compliance with emission limit and quality standards. Attachment E.4 also includes sampling data pertaining to the wastewater treatment works discharges provided by the Operational Contractor Veolia and TelLab on behalf of. Effluent Performance Standards and Compliance Effluent samples are collected from a location which is downstream of all treatment processes (location F in Table E.2.1 in Attachment E.2 Monitoring and Sampling Points). The final effluent monitoring location allows for the automatic collection of a sample which is representative of water quality discharging to the final effluent pump sump. The quality standard to which the final effluent is to conform to is detailed in Table E.4 below. Table E.4 Works Compliance Standards BOD Parameter Works Compliance Standard 20mg/l Suspended Solids COD Total Phosphorus Sampling data pertaining to the discharge 30mg/l 125mg/l 2mg/l Veolia Water as a DBO Contractor has been carrying out sampling on a daily and monthly basis as described in Attachment E.2 and results can be seen in Table E.4.1 Table E.4.1: Sampling of treated effluent from WWTP (March 2007 March 2008) Veolia Water Analysis Results for Final Effluent Date COD mg/l O 2 BOD mg/l O 2 ph SS mg/l NH 3 - N mg/l NO N mg/l NO N mg/l TN mg/l PO 4 3- mg/l OFG March April May June July August MDW0350RP AO3 EPA Export :01:23:39

33 RPS Consulting Engineers September October November December January February March Veolia Water source Average BOD and Suspended Solids for the period March 2007 March 2008 is 7.74 mg/l O 2 and mg/l respectively. The Blessington Final Effluent BOD and Suspended Solids are within the works compliance standard limits, indicated a maximum value for BOD 11.0 mg/l O 2 and Suspended Solids 20.9 mg/l (based on period March March 2008). The level of Phosphorus was exceeded in numbers of months, indicated the maximum value of 6.3 mg/l. The Blessington Plant is currently dealing with that issue to achieved satisfactory results. Table E.4.2 Summary of Raw Influent Results (March March 2008) Analysis Results for Raw Influent Date COD mg/l O 2 BOD mg/l O 2 TelLab (on behalf of Wicklow County Council) ph SS mg/l NH 3 -N mg/l TN mg/l PO 4 3- mg/l OFG March April May June July August September October November MDW0350RP AO3 EPA Export :01:23:39

34 RPS Consulting Engineers December January February March Veolia Water source Average BOD and Suspended Solids in Raw Influent for period March 2007 March 2008 is mg/l O 2 and mg/l respectively. Based on average BOD and Suspended Solids concentration in raw influent and final effluent, we can indicate percentage reduction and efficiency of the all treatment process. Results are presented in Table E.4.3 below. Table E.4.3 Percentage reduction of BOD and SS. BOD (mg/l O 2 ) SS (mg/l) Raw Influent Final Effluent Percentage of Reduction 97.25% 94.5% has been also carrying out sampling on the effluent from Blessington Waste Water Treatment Plant on the monthly basis and results can be seen below in Table E.4.4. MDW0350RP AO3 EPA Export :01:23:39

35 RPS Consulting Engineers Table E.4.4 Sampling of treated effluent from WWTP Sample Date Ammonium(N) BOD Chemical Oxygen Demand 20 C Kjeldahl nitrogen Nitrites(N) Orthophosphate ph Suspended Solids Total Oxidised Nitrogen(N) Total Phosphorus 09/01/ /01/ /03/ /04/ /05/ /06/ < /07/ /07/ /09/ /10/ /11/ /12/ /01/ /02/ /03/ /04/ /05/ source MDW0350RP AO3 EPA Export :01:23:39

36 RPS Consulting Engineers Average BOD, Suspended Solids and Phosphorus for period January 2007 May 2008 are 13.7mg/l O 2, 19.12mg/l and 2.34 mg P/l respectively. In addition has been carrying out sampling in various locations on Golden Falls Lake. List of sampling points together with grid references can be found in Table E.2.5 (Attachment E.2, Monitoring Section). Analysis results from these locations are presented below in Table E.4.5. MDW0350RP AO3 EPA Export :01:23:39

37 RPS Consulting Engineers Table E.4.5 Monitoring Results on Golden Falls Lake Station Name Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) Total Phosphorus asw1u 08/06/ asw1u 02/09/ asw1u 15/12/04 15 < < asw1u 15/02/05 45 < < asw1u 12/04/ < asw1u 25/05/ < asw1u 30/06/ < < asw1u 28/07/05 40 < <0.01 < < asw1u 25/08/05 45 <0.02 < < < asw1u 27/09/ < asw1u 25/10/ < <0.01 < asw1u 29/11/05 90 <0.02 < <0.01 < < asw1u 19/12/05 40 <0.02 < < < asw1u 26/01/06 40 <0.02 < < < asw1u 23/02/06 50 <0.02 < < < <0.05 asw1u 22/03/06 40 <0.02 < <0.01 < < <0.05 asw1u 27/06/06 35 <0.02 < <0.01 < < NT asw1u 25/07/ < <0.01 < < asw1u 29/08/06 85 <0.02 < < asw1u 29/09/06 40 <0.02 < <0.01 < < <0.05 asw1u 31/10/06 45 <0.02 < <0.01 < < <0.05 asw1u 21/11/ < <0.01 < < <0.05 asw1u 12/12/06 40 <0.02 < <0.01 < < <0.05 asw1u 24/01/ <0.05 asw1u 22/02/ < asw1u 28/03/ NT asw1u 26/04/ asw1u 23/05/07 50 < asw1u 27/06/07 45 < <0.007 < NT < asw1u 25/07/ asw1d 08/06/ asw1d 02/09/ asw1d 15/12/ < asw1d 15/02/ < asw1d 12/04/ <0.01 < asw1d 25/05/ < asw1d 30/06/ < < < asw1d 28/07/ <0.01 < < asw1d 25/08/ < <0.01 < < asw1d 27/09/ < asw1d 25/10/ < < asw1d 29/11/05 95 <0.02 < <0.01 < < asw1d 19/12/05 40 <0.02 < < < asw1d 26/01/06 45 <0.02 < < < asw1d 23/02/06 50 <0.02 < < < <0.05 MDW0350RP AO3 EPA Export :01:23:39

38 RPS Consulting Engineers asw1d 22/03/06 45 <0.02 < <0.01 < < <0.05 Station Name Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) asw1d 25/07/ < <0.01 < asw1d 29/08/06 80 <0.02 < <0.05 asw1d 29/09/06 45 <0.02 < < <0.05 asw1d 31/10/06 45 <0.02 < <0.01 < < asw1d 21/11/ < <0.01 < < <0.05 asw1d 12/12/06 40 <0.02 < <0.01 < < <0.05 asw1d 24/01/ NT asw1d 22/02/ < asw1d 28/03/ asw1d 26/04/ asw1d 23/05/07 45 < < asw1d 27/06/07 50 < < < asw1d 25/07/ asw12d 08/06/ asw12d 02/09/ asw12d 15/12/ < asw12d 25/05/ < asw12d 15/02/ < asw12d 12/04/ <0.01 < asw12d 30/06/ < < < asw12d 28/07/ < < asw12d 25/08/05 45 <0.02 < <0.01 < asw12d 27/09/ < asw12d 25/10/ < < asw12d 29/11/ <0.02 < <0.01 < < asw12d 19/12/05 35 <0.02 < < < asw12d 26/01/06 40 <0.02 < < < asw12d 23/02/06 45 <0.02 < < < <0.05 asw12d 22/03/06 50 <0.02 < < < <0.05 asw12d 27/06/ <0.02 < < < NT asw12d 25/07/ < NT 52 <0.01 < < NT 0.47 <0.05 asw12d 29/08/06 20 <0.02 < < <0.05 asw12d 29/09/06 45 <0.02 < < <0.05 asw12d 31/10/06 45 <0.02 < <0.01 < < <0.05 asw12d 21/11/ <0.02 < <0.01 < < <0.05 asw12d 12/12/06 45 <0.02 < <0.01 < < <0.05 asw12d 24/01/ asw12d 22/02/ < asw12d 28/03/ NT asw12d 26/04/ <0.005 asw12d 23/05/07 45 < asw12d 27/06/07 45 < < < asw12d 25/07/ asw13d 08/06/ asw13d 02/09/ asw13d 15/12/ <0.01 < asw13d 15/02/ < Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) Total Phosphorus MDW0350RP AO3 EPA Export :01:23:39

39 RPS Consulting Engineers asw13d 12/04/ <0.01 < asw13d 25/05/ < Station Name Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) asw13d 28/07/ < < asw13d 25/08/05 50 <0.02 < <0.01 < < asw13d 27/09/ < asw13d 25/10/ < < asw13d 29/11/ <0.02 < <0.01 < < asw13d 19/12/05 40 < < < asw13d 26/01/06 45 <0.02 < < < asw13d 23/02/06 50 <0.02 < < < <0.05 asw13d 22/03/06 50 <0.02 < < < <0.05 asw13d 27/06/ < < NT asw13d 25/07/ < <0.01 < < <0.05 asw13d 29/08/06 45 <0.02 < < <0.05 asw13d 29/09/ < < asw13d 31/10/06 45 <0.02 < <0.01 < < <0.05 asw13d 21/11/ <0.02 < <0.01 < < <0.05 asw13d 12/12/06 45 <0.02 < <0.01 < < <0.05 asw13d 24/01/ asw13d 22/02/ < asw13d 28/03/ asw13d 26/04/ <0.005 asw13d 23/05/07 45 < < asw13d 27/06/07 45 < < asw13d 25/07/ /06/ NT NT NT /09/ NT NT NT /12/ NT 38 <0.01 < NT NT /02/ NT 50 < NT NT /04/ NT 56 < NT NT /05/ NT 155 < NT NT /06/ < NT 42 < NT < NT /07/ NT 34 < NT < NT /08/05 50 <0.02 < NT 44 <0.01 < NT < NT /09/ NT NT NT /10/ < NT 50 < NT NT /11/05 90 <0.02 < NT 16 <0.01 < NT <5 6.5 NT 0.5 Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) Total Phosphorus MDW0350RP AO3 EPA Export :01:23:39

40 RPS Consulting Engineers Station Name 19/12/05 40 <0.02 < NT 44 < NT <5 5.8 NT 0.53 Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) 23/02/06 50 <0.02 < NT 54 < NT <5 4.5 NT 0.73 < /03/06 50 <0.02 < NT 54 < NT <5 4.7 NT 0.77 < /06/ <0.02 < NT NT <5 17 NT 0.58 NT 25/07/ < NT 50 <0.01 < < NT /08/06 70 <0.02 < NT 52 < NT NT 0.47 < /09/06 50 <0.02 < NT 48 < NT < NT 0.53 < /10/06 40 <0.02 < NT 40 <0.01 < NT < NT 0.44 < /11/ <0.02 < NT 18 <0.01 < NT <5 8.2 NT 0.55 < /12/06 50 <0.02 < NT 42 <0.01 < NT <5 7.2 NT 0.55 < /01/ NT NT /02/ < NT NT /03/ NT NT /04/ NT NT NT /05/07 45 < NT NT < NT /06/07 50 < NT NT < NT /07/ NT NT NT Total Phosphorus asw15d 08/06/ asw15d 02/09/ asw15d 15/12/ <0.01 < asw15d 15/02/ < asw15d 12/04/ <0.01 < asw15d 25/05/ < asw15d 30/06/ < < < asw15d 28/07/ < NT < asw15d 25/08/ < < < asw15d 27/09/ < asw15d 25/10/ < < asw15d 29/11/ <0.02 < <0.01 < < asw15d 19/12/05 40 < < < asw15d 26/01/06 45 <0.02 < < < asw15d 23/02/06 50 <0.02 < < < <0.05 MDW0350RP AO3 EPA Export :01:23:39

41 RPS Consulting Engineers asw15d 22/03/06 50 <0.02 < < < <0.05 asw15d 27/06/06 45 <0.02 < NT asw15d 25/07/ < <0.01 < < <0.05 Station Name Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) asw15d 29/09/06 50 <0.02 < < < <0.05 asw15d 31/10/06 40 <0.02 < <0.01 < < <0.05 asw15d 21/11/ <0.02 < < < <0.05 asw15d 12/12/06 40 <0.02 < <0.01 < < <0.05 asw15d 24/01/ <0.08 asw15d 22/02/ < asw15d 28/03/ asw15d 26/04/ asw15d 23/05/07 45 < < asw15d 27/06/07 50 < asw15d 25/07/ asw16d 08/06/ asw16d 02/09/ asw16d 15/12/ < asw16d 15/02/ < asw16d 12/04/ <0.01 < asw16d 25/05/ < asw16d 30/06/05 50 < < < asw16d 28/07/ < < asw16d 25/08/ < <0.01 < < asw16d 27/09/ <0.01 < asw16d 25/10/ < < asw16d 29/11/ <0.02 < <0.01 < < asw16d 19/12/05 40 <0.02 < < < asw16d 26/01/06 45 <0.02 < < < <0.05 asw16d 23/02/06 50 <0.02 < < < <0.05 asw16d 22/03/06 50 <0.02 < < < <0.05 asw16d 25/07/ <0.01 < < <0.05 asw16d 29/08/06 40 <0.02 < <0.01 < <0.05 asw16d 27/06/ NT asw16d 29/09/06 50 <0.02 < < <0.05 asw16d 31/10/06 40 <0.02 < <0.01 < < asw16d 21/11/ <0.02 < <0.01 < < <0.05 asw16d 12/12/06 45 <0.02 < <0.01 < < <0.05 asw16d 24/01/ asw16d 22/02/ < asw16d 28/03/ asw16d 26/04/ <0.005 asw16d 23/05/07 45 < < asw16d 27/06/07 45 < asw16d 25/07/ Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) Total Phosphorus 08/06/ NT NT NT /09/ NT NT NT MDW0350RP AO3 EPA Export :01:23:39

42 RPS Consulting Engineers Station Name 15/12/ NT 42 <0.01 < NT NT /02/ NT 54 < NT NT 0.67 Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) 25/05/ NT 110 < NT NT /06/ < NT 40 < NT < /07/ NT 26 < < NT /08/ < NT NT < NT /09/ NT 50 <0.01 < NT NT /10/ < NT NT NT /11/ <0.02 < NT 16 <0.01 < NT <5 6.3 NT /12/05 40 <0.02 < NT 44 < NT <5 5.8 NT 0.57 Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) 26/01/06 45 <0.02 < NT 46 < NT <5 5.3 NT /02/06 50 <0.02 < NT 56 < NT <5 4.6 NT 0.68 < /03/06 45 < NT 50 < NT <5 4.8 NT /06/ < NT 48 < NT 25/07/ NT 52 <0.01 < < NT /08/06 50 <0.02 < NT 72 <0.01 < NT NT /09/06 55 <0.02 < NT 54 < NT <5 >15. 2 Total Phosphorus NT 0.53 < /10/06 50 <0.02 < NT 46 <0.01 < NT < NT 0.44 < /11/ <0.02 < NT 18 < NT <5 8 NT 0.64 < /12/60 45 <0.02 < NT 38 <0.01 < NT <5 6.9 NT 0.53 < /01/ NT NT NT /02/ < NT NT NT /03/ NT NT NT /04/ NT NT NT 0.75 < /05/07 50 < NT NT MDW0350RP AO3 EPA Export :01:23:39

43 RPS Consulting Engineers Station Name 27/06/07 50 < NT 52 < NT < NT /07/ NT NT NT Sample Date Alkalinity Ammonium(N) BOD Chloride Chlorophyll Colour 20 C Dissolved Oxygen % Saturation Dissolved Oxygen (Measurement) Faecal Coliforms Hardness Nitrites(N) asw18d 02/09/ NT asw18d 15/12/ < NT asw18d 15/02/ < NT asw18d 12/04/ <0.01 < NT asw18d 25/05/ < NT asw18d 30/06/ < < NT < asw18d /07/ < NT asw18d 25/08/ < < NT < asw18d 25/10/ < < NT asw18d 29/11/ < <0.01 < NT < asw18d 19/12/05 40 <0.02 < < NT < asw18d 26/01/06 45 <0.02 < < NT < asw18d 23/02/06 50 <0.02 < NT <0.05 asw18d 22/03/06 50 < < NT < asw18d 27/06/06 40 <0.02 < NT < NT asw18d 25/07/ < < <0.05 asw18d 29/08/06 60 <0.02 < < NT <0.05 asw18d 29/09/06 50 <0.02 < < NT < <0.05 asw18d 31/10/06 45 <0.02 < <0.01 < NT < asw18d 21/11/ <0.02 < < NT < <0.05 asw18d 12/12/06 40 <0.02 < <0.01 < NT < <0.05 asw18d 22/02/ < NT asw18d 28/03/ NT asw18d 26/04/ NT NT asw18d 27/06/ < NT < Wicklow County Council source Above locations are shown on Drawing No. MDW0350DG/E.4 Orthophosphate ph Sechi Disk Depth Suspended Solids Temp Total Coliforms Total Oxidised Nitrogen(N) Total Phosphorus MDW0350RP AO3 EPA Export :01:23:39

44 EPA Export :01:23:39

45 RSP Consulting Engineers TelLab on behalf of carried out additional analysis samplings taken from Inlet, Outlet locations and also from upstream and downstream locations of the primary discharge point SW1(P). All data is presented below. MDW0350RP AO3 EPA Export :01:23:39

46 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39

47 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39

48 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39

49 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39

50 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39

51 RSP Consulting Engineers MDW0350RP AO3 EPA Export :01:23:39