Mayo Renewable Power Killala Construction Works Monthly Environmental Report 010 April 2016

Transcription

1 Mayo Renewable Power Killala Construction Works Monthly Environmental Report 010 April 2016 Executive Summary John Sisk & Son (Holdings) Ltd. commissioned NVM Ltd. to monitor and report on Noise, Dust and Water for the construction phase of the Mayo Renewable Power (MRP) plant at Killala, County Mayo. All sampling, analysis and reporting as per MRP Construction Management Plan (CMP) 1. Attached are the findings and conclusions of all sampling and analysis carried out by NVM Limited between the dates 31 st to 28 th of April 2016 accompanied by required appendices. All data was reviewed with the following of note: Noise These readings were logged at regular intervals throughout the month of April. All such readings are attributed to relatively low level construction noise audible at site boundaries. All data from the manned surveys were within specified recorded baseline levels as per the current CMP document. Dust Deposition During this reporting period no issues of concern were recorded at any of the four dust deposition monitoring locations. All results for this sampling period were within the limit of 350mg/m 2 /day. Water All surface water monitoring and analysis data recorded within this reporting period remain at acceptable levels in accordance with requirements of the CMP. 1 ref: John Sisk & Son (Holdings) Ltd. NVM Ltd. - Mayo Renewable Power (Killala) Construction Management Plan Rev th October 2015.

2 Full Environmental Report plus appendices enclosed as follows. Contract: Report Title : MRP Killala Construction Works Monthly Report on Monitoring Noise, Dust and Water Quality Document No : NVM 010 Issue: REV 01 Date: Prepared By : Approved By : Cathy Dignam For approval from Michael Kelly Environmental Champion Sisk CONTENTS 1.0 Introduction 2.0 Environmental Noise 3.0 Dust Monitoring Results 4.0 Water Measurement Monitoring Grab Samples A3 Certificates of Calibration A2 1:3 Octave Band Analysis Results A3 Water Quality Results from Daily Monitoring by SISK A4 Estimated Surface Water Discharge from MRP Detention Basin April 2016 A5 MRP Waste Management SMARTWaste Data April 2016

3 1.0 INTRODUCTION NVM limited have been requested to provide an environmental noise, dust and water continuous monitoring plan for John Sisk & Son (Holdings) Limited during construction works of the new MRP plant, Killala, Co Mayo. The intention is to monitor the impact to the immediate vicinity from construction and environmental noise, dust emissions and water quality during the development. The following report includes details of monthly monitoring and data collection procedures as completed on site on Thursday the 28 th of April Methodology All monitoring is completed in general accordance with the following standards: ; BS 5228 Control of Noise and Vibration on Open sites: ISO 1996:2, Acoustics Description, measurement and assessment of environmental noise Part 2: Determination of environmental noise levels. EPA Guidance note for Noise: Licence Applications, surveys and Assessments in Relation to Scheduled Activities (NG4):2012. TA Luft VDI 2119 Bergerhoff dust sampling method. Surface water sampling will be completed in general accordance with European Communities Environmental Objectives (Surface Waters) (Amendment) Regulations, 2015 (S.I. No. 386 of 2015). Groundwater Sampling will be completed in general accordance with European Communities Environmental Objectives (Groundwater) (Amendment) Regulations, 2012 (S.I. No. 149 of 2012). Calibration Certificates for all instrumentation used for monitoring is contained in the Appendix I of this report.

4 The following aerial map shows the monitoring locations noted in MRP Killala Construction Management Plan (CMP) document 2. N 2 ref: John Sisk & Son (Holdings) Ltd. NVM Ltd. - Mayo Renewable Power (Killala) Construction Management Plan Rev th October 2015.

5 Monthly Rainfall at Belmullet April Monitoring Period 2016 Week 1 Week 2 Week 3 Week 4 Date Rainfall (mm) Date Rainfall (mm) Date Rainfall (mm) Date Rainfall (mm) 31/03/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ /04/ ENVIRONMENTAL NOISE Details of the noise monitoring plan, noise guidance values and monitoring locations are outlined in the relevant sections of the Construction Management Plan (CMP) There are 4 no. of noise monitoring points (N1; N2; N3; N4) as indicated in the accompanying map Section 1 and detailed in the CMP document. Currently, attended noise surveys are carried out on a weekly basis for a duration of 1 hour (T 1hour) at each monitoring point. 3 ref: John Sisk & Son (Holdings) Ltd. NVM Ltd. - Mayo Renewable Power (Killala) Construction Management Plan Rev th October 2015: Section 10: Environmental Monitoring Plan Noise

6 2.1 MEASUREMNET TABLES FROM MANNED NOISE MEASUREMENTS Table Attended Survey 28/04/2016 Location Ref Date Time L Aeq (T 1hr) L AMax L A10 L A90 N1 14: N2 13: /04/2016 N3 11: N4 09: DUST MONITORING Details of the dust monitoring plan, dust emission guidance values and monitoring locations are outlined in the relevant sections of the Construction Management Plan (CMP) for this project 4. There are 4 no. dust installations (D1; D2; D3; D4) consisting of plastic HDPE jars in Bergerhoff dust gauges; non-hazardous dust deposition will be collected on a monthly basis. Table 3.1. Dust results from collected samples for the monitoring period 31/03/ /04/2016. Location Actual Weight (g) No. of Sampling Days Daily Average Dust Fall mg/m 2 /day D D D D As the above table shows there are no exceedances of the CMP guidance value for daily dust fall of 350mg/m 2 /per day at any of the 4 dust monitoring points. 4 ref: John Sisk & Son (Holdings) Ltd. NVM Ltd. - Mayo Renewable Power (Killala) Construction Management Plan Rev th October 2015: Section 10: Environmental Monitoring Plan Dust

7 The relatively high dust levels at D1 may be directly associated with a high level of construction activity in the immediate area around this location i.e. soil deposition and stock-piling / storage of site stone for construction use. 4.0 WATER QUALITY MONITORING Details of the water monitoring plan and monitoring locations are outlined in the relevant sections of the Construction Management Plan (CMP) for this project 5. Going forward from Wednesday October 28 th 2015 sampling frequency by NVM Ltd. has been changed from 1-weekly to 1-monthly. Samples are collected from 2 no. of surface water locations (SW1, SW2) and from 2 no. of boreholes (GW1, GW2). These samples are subsequently sent to an accredited laboratory for analysis. SISK is to carry out in-situ monitoring at the SW1; surface water is sampled and visually inspected on a daily basis and groundwater water quality is sampled monthly by SISK. These samples are based on the only potential pathways to the natural water from Construction Works. All sampling and analysis is carried out in accordance with standard methodologies 67 and the MRP Killala CMP. Recorded baseline measurements may be referred to in the CMP against which any changes in water quality can be determined through on-going monitoring during construction operations. The following tables show results of monthly samples collected at surface and groundwater points on the 28 th of April Results of daily monitoring by SISK are presented in an excel spreadsheet in the Appendix II of this report. 5 Ref: John Sisk & Son (Holdings) Ltd. NVM Ltd. - Mayo Renewable Power (Killala) Construction Management Plan Rev th October 2015: Section 10: Environmental Monitoring Plan; Water 6 ISO Water Quality Sampling Part 3: Preservation and handling of water samples (4 th Ed ) 7 ISO Water Quality Sampling Part 11: Guidance on sampling of ground waters

8 4.1 MEASUREMENT TABLES FROM MONTHLY WATER QUALITY ANALYSIS Surface Water Paramater Units Result - SW1 Chloride mg/l Conductivity (Surface 20 o C) µscm o C 652 Dissolved Oxygen % 87.0 Dissolved Oxygen mg/l 7.8 ph (Surface Water) ph Units 8.1 Solids (Total Suspended) mg/l 13 Total Organic Carbon mg/l TPH (>10-40) µg/l <1 Turbidity NTU 6.60 Temperature o C 9 Paramater Units Result SW2 Chloride Conductivity (Surface 20 o C) Dissolved Oxygen % Dissolved Oxygen ph (Surface Water) Solids (Total Suspended) Total Organic Carbon TPH (>10-40) Turbidity Temperature mg/l µscm o C mg/l ph Units mg/l mg/l µg/l NTU NO DATA Please note sampling was not possible at SW2 (inlet to detention basin); there was no water present on the day of sampling a contributory factor being the gradual sloping profile and effect of the header wall. Therefore there is no data available for SW2 on this occasion. Discharge is being monitored here on a daily basis by SISK personnel. o C Ground Water Sampling at GW2 has resumed following approval from Site Health and Safety personnel thereby allowing access in this area. Results from both GW1 and GW2 are provided in the following tables.

9 Paramater Units Result - GW1 Ammonia (as N) (Ground Water) mg/l as N AQ2-UP1 Nitrate (Groundwater) mg/l as N <0.110 Nitrate (Ground Water) mg/l as NO 3 <0.49 Nitrite (Ground Water) mg/l as N <0.002 Nitrite (Ground Water) mg/l as NO 2 <0.050 Phosphate-Ortho (as P) (Ground Water) mg/l as P <0.005 BOD & COD BOD (Ground Water) mg/l <2 COD (Ground Water) mg/l <5 GCFID TPH Split TPH>C10-C28 (DRO) (Ground Water) µg/l <1 TPH>C10-C40 (MO) (Ground Water) µg/l <1 TPH>C6-C12 (PRO) (Ground Water) µg/l <5 TPH>C6-C40 (TPH) (Ground Water) µg/l <1 Mineral Oil (by calculation) µg/l <2.5 Metals Trace Aluminium (Ground Water) µg/l Arsenic (Ground Water) µg/l Cadmium (Ground Water) µg/l Calcium (Ground Water) mg/l Chromium (Ground Water) µg/l Copper (Ground Water) µg/l Iron (Ground Water) µg/l Lead (Ground Water) µg/l Magnesium (Ground Water) mg/l Manganese (Ground Water) µg/l Mercury (Ground Water) µg/l <0.04 Tin (Ground Water) µg/l <2.8 Total Hardness (Ground Water) mg/l CaCO Zinc (Ground Water) µg/l <0.41 Titrilab Conductivity (Ground Water) µscm o C 743 Dissolved Oxygen mg/l 3.3 Dissolved Oxygen % 35 ph (Ground Water) ph Units 7.5 Turbidity NTU 4.25 Temperature o C 16 Solids Total Dissolved Solids (TDS) (Ground Water) mg/l 598 Suspended Solids (Ground Water) mg/l 3 Total Organic Carbon (TOC) (Ground Water) mg/l 1.295

10 Paramater Units Result GW2 Ammonia (as N) (Ground Water) mg/l as N 1.79 AQ2-UP1 Nitrate (Groundwater) mg/l as N Nitrate (Ground Water) mg/l as NO Nitrite (Ground Water) mg/l as N Nitrite (Ground Water) mg/l as NO Phosphate-Ortho (as P) (Ground Water) mg/l as P <0.005 BOD & COD BOD (Ground Water) mg/l <2 COD (Ground Water) mg/l 7 GCFID TPH Split TPH>C10-C28 (DRO) (Ground Water) µg/l <1 TPH>C10-C40 (MO) (Ground Water) µg/l <1 TPH>C6-C12 (PRO) (Ground Water) µg/l <5 TPH>C6-C40 (TPH) (Ground Water) µg/l <1 Mineral Oil by calculation µg/l <2.5 Metals Trace Aluminium (Ground Water) µg/l Arsenic (Ground Water) µg/l Cadmium (Ground Water) µg/l Calcium (Ground Water) mg/l Chromium (Ground Water) µg/l Copper (Ground Water) µg/l Iron (Ground Water) µg/l Lead (Ground Water) µg/l Magnesium (Ground Water) mg/l Manganese (Ground Water) µg/l Mercury (Ground Water) µg/l Tin (Ground Water) µg/l <2.8 Total Hardness (Ground Water) mg/l CaCO Zinc (Ground Water) µg/l Titrilab Conductivity (Ground Water) µscm o C 1018 Dissolved Oxygen mg/l 9.1 Dissolved Oxygen % 97 ph (Ground Water) ph Units 11.6 Turbidity NTU 8.61 Temperature o C 10.0 Solids Total Dissolved Solids (TDS) (Ground Water) mg/l 508 Suspended Solids (Ground Water) mg/l 8 Total Organic Carbon (TOC) (Ground Water) mg/l 2.905

11 APPENDIX Appendix A1 (a) Calibration Certificates: Noise

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13 Appendix A1 (b) Calibration Certificates: Water Quality

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16 Appendix A2 1:3 Octave Band Analysis Results

17 Appendix A3 Water Quality (Excel) Results Daily Monitoring by SISK Sisk - MRP Results of Daily Monitoring of Surface Water Quality at SW1 April 2016 Date & Time ph units Turbidity NTU Reference mv (ph) Specific Conductivity ms/cm Temperature : : : : : : : : : : : : : : : : : : : : : :

18 Appendix A4

19 Appendix A5 MRP Waste Management Data extracted from online SMART Waste' database April 2016

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21 I trust the above is to your satisfaction however if you have any queries please do not hesitate to contact me. Yours sincerely, Cathy Dignam NVM Limited