DROGHEDA LANDFILL SITE COLLON ROAD, MELL, DROGHEDA

Transcription

1 GROUNDWATER MONITORING INFORMATION QUARTERLY REPORT FOR PERIOD APRIL TO JUNE 216 BY LOUTH COUNTY COUNCIL TO ENVIRONMENTAL PROTECTION AGENCY FOR WASTE LICENCE REFERENCE: W33-1 DROGHEDA LANDFILL SITE COLLON ROAD, MELL, DROGHEDA EPA Export :1:56:4

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3 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring Document Control Sheet Client Project Title Document Title Document No. This Document Comprises Louth County Council Drogheda Landfill Site Environmental Monitoring (April to June 216) Groundwater Monitoring IBR856/Reports DCS TOC Text No. of Tables No. of Figures No. of Appendices Rev. Status Author(s) Reviewed & Approved By 1. Final Angela McGinley, Senior Scientist Donal Doyle, Director Issue 18/7/16 Copyright RPS Ireland Limited. All rights reserved. The report has been prepared for the exclusive use of our client and unless otherwise agreed in writing by RPS Ireland Limited no other party may use, make use of or rely on the contents of this report. The report has been compiled using the resources agreed with the client and in accordance with the scope of work agreed with the client. No liability is accepted by RPS Ireland Limited for any use of this report, other than the purpose for which it was prepared. RPS Ireland Limited accepts no responsibility for any documents or information supplied to RPS Ireland Limited by others and no legal liability arising from the use by others of opinions or data contained in this report. It is expressly stated that no independent verification of any documents or information supplied by others has been made. RPS Ireland Limited has used reasonable skill, care and diligence in compiling this report and no warranty is provided as to the report s accuracy. No part of this report may be copied or reproduced, by any means, without the written permission of RPS Ireland Limited. Ref: IBR856 Status: Final : July 216 i EPA Export :1:56:4

4 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring Contents 1 Introduciition Groundwater Baseline Data Downgradient Data Borehole Groundwater Levels... 6 Appendices Appendix A - Drawings Appendix B Groundwater Analysis Results and Graphs Ref: IBR856 Status: Final : July 216 ii EPA Export :1:56:4

5 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring 1 Introduction This report has been prepared to meet the monitoring conditions set out in accordance with waste licence (Reference W33-1) for the landfill site at Collon Road, Mell, Drogheda. The waste licence requires the provision of environmental monitoring results for groundwater, surface water, leachate and landfill gas as detailed under Condition 3.7 and Schedules D and F. The groundwater results contained in this report are for the period April to June 216 and are assessed against the European communities (Drinking Water) (No. 2) Regulations 27 parametric value (DWR), EPA Interim guideline values (IGV) and the SI. No. 9/21 European Communities Environmental Objectives (Groundwater) Regulations 21 (GTV). A table showing the DWR, IGV and GTV from applicable regulations is to be found in Appendix B. Ref: IBR856 Status: Final : July EPA Export :1:56:4

6 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring 2 Groundwater As required under the waste licence, groundwater monitoring has been undertaken at the borehole locations as set out in Schedule F of the waste licence. Drawing No. IBR59/1 (Appendix A) details these locations. Schedule F of the waste licence requires the monitoring of certain parameters on either a monthly, quarterly or annual basis; the frequency of the monitoring of groundwater parameters are shown in Table 2.1. to were installed in August 21. Table 2.1 Monitoring Frequency Annually Groundwater Parameters Monitoring Frequencies,,,,, Visual Inspection and Odour, Groundwater Level, Ammoniacal Nitrogen, Chloride, Cadmium, Chromium, Electrical Conductivity, ph, Temperature, Iron, Lead, Manganese, Potassium, Sodium, Barium, Nickel, Nitrate, Nitrite, Phenol, Zinc Dissolved Oxygen, TON, TOC, Zinc Boron, Calcium, Copper, Cyanide, Fluoride, Magnesium, Mercury, Sulphate, Total Alkalinity, Total Phosphorous, Residues on Evaporation, Faecal Coliforms, Total Coliforms List I & II substances monitored biannually from BH1, annually from other boreholes,,,, Groundwater Level, Ammoniacal Nitrogen, Electrical Conductivity, ph, Temperature Visual Inspection and Odour, Chloride, Dissolved Oxygen, Cadmium, Chromium, Iron, Lead, Manganese, Potassium, Sodium, TON, TOC, Barium, Nickel, Nitrate, Nitrite, Phenol Boron, Calcium, Copper, Cyanide, Fluoride, Magnesium, Mercury, Sulphate, Total Alkalinity, Orthrophosphate, Residues on Evaporation, Zinc, Faecal Coliforms, Total Coliforms Boreholes, and 1 provide an indication of the upgradient baseline groundwater characteristics whilst,,, and are considered as intermediate and downgradient locations. In addition provides downgradient information in a borehole that was penetrated through a karstic void and hence is potentially an area of relatively high groundwater flows emanating from the site. provides information on the nature of the groundwater deep beneath the landfill site. In general the regional groundwater flow across the site will be towards the River Boyne, 1 no longer used as an up gradient borehole. Ref: IBR856 Status: Final : July EPA Export :1:56:4

7 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring however due to the karstified nature of the bedrock local groundwater flow directions can be highly variable during varying climatic conditions. Groundwater monitoring results are included in Appendix B. 2.1 Baseline Data Samples were collected on the 29 th June 216. Monitoring was carried out upgradient of the site in order to obtain an overview of the background level of contaminants present within the surrounding groundwater. This allows for a baseline to be established from which the actual impact caused by the site on the area can be assessed. The ph levels in the upgradient boreholes were within the recommended lower and upper limits in accordance with the DWR ranging between 6.95 and 7.6. Electrical Conductivity (EC) (which is dependent on the amount of dissolved materials in solution with the groundwater) for all upgradient boreholes were within the IGV of 1µS/cm and the DWR of 25µS/cm ranging between 412 and 825 µs/cm. Ammonia concentrations (<.11 ) were below the IGV (.15 ) and GTV (.175 N) in all up-gradient boreholes. Chloride concentrations were below the IGV of 3 except (35.2 ), and are within the GTV overall threshold value range of Cl. This result is consistent with previous monitoring periods. Phenol concentrations of <.5 ug/l were recorded in all upgradient boreholes. This is below the IGV of.5µg/l. Total Organic Carbon (TOC) concentrations in the upgradient boreholes ranged from <1 to Total Organic Nitrogen (TON) concentrations in the up-gradient boreholes ranged from <.7 to 4.1. Dissolved oxygen (DO) ranged from 8.5 to Potassium exceeded IGV of 5 at when a concentration of 11.4 was recorded. This result is consistent with previous monitoring periods. Barium, Cadmium, Chromium, Iron, Lead, Magnesium, Manganese, Nickel, Nitrite, Sodium and Zinc concentrations were all below the IGV, GWR 21 and DWR for this monitoring period or the lower limit of detection for the methodology. Ref: IBR856 Status: Final : July EPA Export :1:56:4

8 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring 2.2 Downgradient Data The potential impact on the groundwater from the site can be identified from the results in,,, and. The ph levels were within the recommended lower and upper limits in accordance with the DWR ( ) ranging between 6.92 and Electrical Conductivity for all downgradient boreholes were within the IGV of 1µS/cm and the DWR of 25µS/cm ranging between 438 and 783 µs/cm.. Ammonia concentrations (<.11 ) were below the IGV (.15 ) and GWR 21 (.175 N) in all downgradient boreholes. All boreholes have Chloride concentrations below the IGV of 3 except (37.2 ). These were within the GTV overall threshold value range of Cl. This result is consistent with previous monitoring periods. Phenol concentrations of <.5 ug/l were recorded in all down gradient boreholes. This is below the IGV of.5µg/l. TOC concentrations in the down gradient boreholes ranged from <1 to TON concentrations ranged from <.7 to 5.2. DO ranged from 8.1 to Potassium exceeded the IGV of 5 in downgradient boreholes (8.6), (8.63 ) and (12.75). These results are consistent with previous monitoring periods. Barium, Cadmium, Chromium, Iron, Lead, Manganese, Nickel, Nitrite, Sodium and Zinc concentrations were all below the IGV, GTV and DWR or the lower limit of detection for the methodology for this monitoring period. As can be seen in trend graphs provided in Appendix B the down gradient boreholes do not indicate a significant impact from the waste body. The majority of contaminant are within the DWR, IGV and GTV limits from the applicable regulations. Those parameters which exceed in the down gradient boreholes are similar in concentrations to the up gradient boreholes. Ref: IBR856 Status: Final : July EPA Export :1:56:4

9 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring Borehole is no longer considered an upgradient borehole as it appears to be influenced by leachate emission from the adjacent waste. The ph level was within the recommended lower and upper limits in accordance with the DWR ( ). Electrical Conductivity for was below the IGV of 1µS/cm. Ammonia concentration was.71 N above the IGV (.15) and GTV (.175 N). Ammonia concentrations in this borehole have varied from less than the limit of detection up to 6.78 mg /l N (last three years) at times. Chloride concentration of 4.2 was above the IGV of 3 but is within the GTV overall threshold value range of Cl. This result is consistent with previous monitoring periods. Phenol concentration was <.5 ug/l. TOC concentration was <1 and TON 8.6. Dissolved oxygen in borehole was Barium, Cadmium, Chromium, Iron, Lead, Manganese, Nickel, Nitrite, Potassium, Sodium and Zinc concentrations were all below the IGV, GTV and DWR or the lower limit of detection for the methodology for this monitoring period. The Hydrogeological Review report undertaken in 215 indicated that there is no obvious downward trend evident from the chemical data within BH5a (i.e. ammonia). The source of contamination in this borehole is not reducing over time. The report recommended the replacement of monitoring borehole BH5a should be considered and supervised by a hydrogeologist to ensure an appropriate well installation has been undertaken and that the boreholes are not providing a contaminant pathway to the underlying aquifer. BH5a will be decommissioned as part of the capping works to be completed on site in late 216. Ref: IBR856 Status: Final : July EPA Export :1:56:4

10 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring 2.3 Groundwater Levels Groundwater levels monitoring is undertaken at eleven locations on site as show on Table 2.2. Table 2.2 Borehole (OD) TOP Groundwater Level mod m Water Level Depth (m) Water Level m (OD) Water Level Depth (m) Water Level m (OD) 31-Mar Jun Ref: IBR856 Status: Final : July EPA Export :1:56:4

11 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring Appendix A Drawings Ref: IBR856 Status: Final : July 216 EPA Export :1:56:4

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15 Drogheda Landfill Site (W33-1) Environmental Monitoring (April to June 216) Groundwater Monitoring Appendix B Groundwater Analysis Results and Graphs Ref: IBR856 Status: Final : July 216 EPA Export :1:56:4

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17 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 55 <5 < <5 <5 <5 <5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3.3 <.3 <.3 < <.2 <.2 <.2 <.2 <.2.28 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <1. <1. < Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 < <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < <1. < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5.6 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l < Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml 3 2 Fluoride.8 1 < <.2 Iron µg/l 2 2 < < <1 2 <1 <1 <1 <1. <1. <1. <1. <1. 16 <1. <1. <.23 <.23 Lead µg/l < <.5 < <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <5 <5 <5. <5. <5. < < Mercury µg/l nm nm <.5 nm nm nm nm nm nm nm nm <.5 <.2 Molybdenum µg/l 35 <.5 <.5.5 <.5 < <.5 <.5 <.5 <1 <1 <1. <1. <1. 5 <1. <1. <1. <1. Nickel µg/l < <1. <1. < <.3 <.3 Nitrate N <.7 <.7 Nitrite N <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P 3.7 <.1.48 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1.6 <.5 <.5 <.5 <.5.6 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 < <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 11: 13:25 13:5 1:2 13:2 12: :5 1:35 13:35 12:55 1:45 13: 1:2 1:4 13:1 14:35 13:55 Tin (µg/l) µg/l nm nm nm T.O.C. NAC 62.8 <1.5 < < <1.5 <1 1.6 T.O.N N NAC <.2 <.2 < <.7 <.7 Total S Solids Uranium µg/l <1. < Vanadium µg/l <1. <1. < <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:4

18 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l < <5 <1. <1. <1. <1. <1. <1. 12 <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.2 <.2 <.2.21 <.2 <.2 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 < <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < <1. < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l < Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml 3 Fluoride.8 1 < <.2 Iron µg/l 2 2 <1 2 <1 <1 <1. <1. <1. <1. <1. < <.23 <.23 Lead µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <1 <5. <5. <5. <5. <5. <5. 15 < Mercury µg/l nm <.5 nm nm <.5 <.2 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <1. <1. <1. <1. 2 <1. <1. <1. Nickel µg/l < <.5 1 <1. <1. <1. <1. <1. <1. <1. <1..5 <.3 Nitrate N 1.5 <.7 Nitrite N <.2 <.2 <.2 <.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1 < <.5 <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C nm Thallium µg/l <.1.11 <.1.11 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 11:25 13:1 13:25 1:55 13: 12:4 11:15 12:5 13:5 11:2 1:5 13:15 12:4 11:15 12:4 1:5 1:55 12:4 14:15 13:35 Tin (µg/l) µg/l nm nm T.O.C. NAC T.O.N N NAC Total S Solids Uranium µg/l < <1. <1. <1. <1. <1. Vanadium µg/l.75 < <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:4

19 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 <5 <5 5.2 <1. <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3.3 <.3.3 <.3 <.3 <.3 < <.2.58 <.2.38 <.2 < <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 < <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) 14 >242 3 Conductivity Copper µg/l < < <1. < <1. <1. Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation nm E_ Coli No/1 ml Fluoride.8 1 < <.2 Iron µg/l <1 < <1. <1. <1. <1. <1. <1. <1. <1. <.23 <.23 Lead µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <5. < <5. < Mercury µg/l nm <.5 nm nm <.5 <.2 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Nickel µg/l <.5.8 < <1. <1. <1. <1. <1. <1. <1. <.3 <.3 Nitrate N Nitrite N < < <.4 <.8 <.8 o-phosphate P ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1 <.1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 13:5 1:15 1:25 13:45 1:35 1:1 1:3 1: 14:3 1:4 11:35 nt 9:35 13:4 14:4 1:3 13:15 1:3 1:15 1: Tin (µg/l) µg/l nm nm T.O.C. NAC <1 <1 T.O.N N NAC Total S Solids Uranium µg/l <1. <1. <1. <1. <1. <1. <1. Vanadium µg/l.56 <.5 <.5.59 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:4

20 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 <5 <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. Arsenic ug/l < <.5 <.5 <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1.2 <.1 <.1 <.2 < <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < < <.2 <.2 Cobalt µg/l < <.5 <.5 <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) 4 5 Conductivity Copper µg/l <1. <1. <1. <1. Cyanide.5 1 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml Fluoride.8 1 <.15 <.2 Iron µg/l <1 < <.23 <.23 Lead µg/l <.5 1 <.5 <.5 <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l 5 5 < <1 2.4 <5. <5. <5. < Mercury µg/l nm nm <.5 nm <.2 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <1. <1. <1. <1. Nickel µg/l < <1. <1. <1. <1. <.3 <.3 Nitrate N Nitrite N <.2 <.2 <.2 <.2 <.2 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P 3.2 <.1 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 nm <.2 <.2 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1 <.5 <.5 <.5 <.5 <1. <1. <1. <1. Silver µg/l nm nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1 <.1 <1. <1. <1. <1. Time sampled 11:55 12:5 13:1 11:3 12:45 12:2 11:1 11:15 12:15 Tin (µg/l ) µg/l nm nm nm T.O.C. NAC 94.5 <1.5 < <1 <1 T.O.N N NAC Total S Solids Uranium µg/l Vanadium µg/l <.5 <.5 <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:4

21 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 <5 <5 <5 <5 13 <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N < <.2 < Antimony ug/l 5 <.5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <.5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 < <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < < Cobalt µg/l.6 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l < < <1. <1. <1. <1. Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml 61 Fluoride.8 1 < <.2 Iron µg/l 2 2 <1 1.9 < <1 21 <1. 1 <1. <1. 65 <1. 13 <.23 <.23 Lead µg/l <.5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l < <5. < Mercury µg/l nm <.5 nm nm nm <.5 <.2 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Nickel µg/l <1. <1..6 <.3 Nitrate N Nitrite N <.2 < < <.4 < o-phosphate P ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C nm Thallium µg/l < <1. <1. 2 <1. <1. <1. <1. Time sampled 12:25 12:35 12:5 11:55 12:3 12:15 11:45 12:3 11:45 11:5 11: : 11:5 12:15 11:4 11:4 11:45 13:5 13:15 Tin (µg/l) µg/l nm nm T.O.C. NAC 79.7 < < <1.5 <1.5 <1 <1 T.O.N N NAC Total S Solids Uranium µg/l < < <1. Vanadium µg/l.75 <.5.58 <.5.77 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:4

22 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l < < <5 <5 5.5 <1 <1 <1. 1 <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.3 <.3 < <.2.22 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.2 <.2.2 <.2 <.2.2 <.2 <.2 <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < < <1. <1. < <1. < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l < <1. <1. <1. <1. <1. < Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml Fluoride <.2 Iron µg/l < <1 <1 < <1. <1. <1. 15 <1. 1 <1. <1. <.23 <.23 Lead µg/l < <.5 < <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <5 <5 <5. <5. <5. <5. <5. <5. < Mercury µg/l nm nm <.5 nm nm nm nm nm nm nm <.5 <.2 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Nickel µg/l <1. <1. <1. <1. <1. <1. <1. <1. <.3 <.3 Nitrate N.7 <.7 Nitrite N <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P <.1 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 nm <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 1:4 1:3 1:45 1: 1:5 1:25 11:2 11:2 12:3 11:2 12:1 1:45 9:45 1:15 1:5 1:5 1:15 11: 1:45 1:2 Tin (µg/l) µg/l nm nm nm T.O.C. NAC 43.7 <1.5 <1.5 < <1.5 < < < <1 <1 T.O.N N NAC <.7 Total S Solids Uranium µg/l <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Vanadium µg/l.51 <.5 <.5 <.5 <.5 <.5 <.5.52 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:5

23 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l nm <1. <1. 11 <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 nm <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3.6 <.2 <.2 <.2 < <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 nm <1. < <1. <1. <1. <1. <1. Arsenic ug/l nm < Barium ug/l 1 nm Beryllium ug/l nm <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l nm Cadmium µg/l nm < < <.6 <.6 Calcium Ca 2 nm C.O.D. O2 Chloride Cl 25 3 nm Chromium µg/l nm Cobalt µg/l nm <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity nm Copper µg/l nm Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation nm E_ Coli No/1 ml 1 Fluoride <.2 Iron µg/l 2 2 nm 2.7 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. <.23 <.23 Lead µg/l nm <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg 5 nm Manganese µg/l 5 5 nm 1.4 <1 <1 <5. <5. <5. <5. <5. <5. <5. < Mercury µg/l nm.1 nm nm <.5 <.2 Molybdenum µg/l 35 nm < Nickel µg/l nm <1. <1. <1. <1. <1. <1. <1. <1. <.3 <.3 Nitrate N <.7 <.7 Nitrite N nm <.2 <.2 <.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P 3 <.2 <.1 <.1 ph nm Phenol.5 nm <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium 5 nm Sampling Depth m nm Selenium µg/l 1 nm < Silver µg/l nm nm Sodium nm Strontium µg/l nm Sulphate SO Suspended Solids Temp C nm nm nm Thallium µg/l nm <.1 <.1 <.1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 13:5 12:1 12:2 12:35 12:1 11:5 12:35 12: 12:3 12:35 14:25 12:3 9:45 12:3 11:45 12:4 12:5 11:15 13:5 12:4 Tin (µg/l) µg/l nm nm T.O.C. NAC nm < <1 <1 T.O.N N NAC nm < <.2 <.7 <.7 Total S Solids Uranium µg/l nm < < Vanadium µg/l nm < Zinc µg/l 1 nm <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:5

24 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 <5 <5 <5 <1. <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <.5.61 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 <.1 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l <1. < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l <.5 <.5.5 <1. <1. <1. <1. <1. <1. <1. <1. Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml Fluoride.8 1 <.15 <.15 <.2 Iron µg/l 2 2 <1 <1 < < <1. <1. <1. <1. <.23 <.23 Lead µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <5. <5. <5. <5. <5. <5. <5. < Mercury µg/l nm <.5 nm nm <.5 <.2 Molybdenum µg/l 35 <.5 < <1. <1. <1. <1. <1. <1. <1. <1. Nickel µg/l <.5 <.5 < <1. <1. <1. <1. <1. <1. <1. <1. <.3 <.3 Nitrate N <.7 <.7 Nitrite N <.2 <.2 <.2 <.2.5 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P 3 <.2 <.1 <.1 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium <.18 <.18 Sampling Depth m Selenium µg/l <.5 <.5 1 <1. < <1. <1. <1. Silver µg/l nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1.1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 11:5 1:55 11:5 1:25 11:1 1:4 11:5 1:55 11:2 11:4 12:4 11:1 1:1 1:45 1:2 11:15 1:4 11:2 11:5 1:4 Tin (µg/l) µg/l nm nm T.O.C. NAC 61.5 < <1.5 < <1.5 < <1.5 <1 <1 T.O.N N NAC < <.7 <.7 Total S Solids Uranium µg/l <1. <1. <1. <1. <1. <1. <1. <1. Vanadium µg/l <.5 <.5 <.5 <.5 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:5

25 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <5 2.4 <5 < <5 <5 <5 <5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.3 <.2.26 <.2.6 <.2 <.2 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. < <1. <1. <1. Arsenic ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.2 <.2.2 <.2.2 <.2.2 <.2 <.2 <.2 <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < <.5 < < <1. < < <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) 3 3 Conductivity Copper µg/l < <1 <1 <1. <1. <1. <1. < <1. <1. Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml Fluoride.8 1 <.15 <.15 <.2 Iron µg/l <1 < <1 < <1 <1 <1 26 <1. 11 <1. <1. <1. <1. <1. <.23 <.23 Lead µg/l <.5.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <1 13 <1 <1 <1 <1 <5 <5 <5. <5. <5. <5. <5. <5. <5. < Mercury µg/l nm nm <.5 nm nm nm nm nm nm nm nm <.5 Molybdenum µg/l 35 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. < <1. <1. <1. Nickel µg/l <.5 <.5 < <1. <1. <1. <1. <1. <1. <1. <1. <.3 <.3 Nitrate N <.7 <.7 Nitrite N <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P <.1 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1 <.5 <.5 <.5 <.5.7 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 11:3 11:15 11:25 1:55 11:3 11:5 12:1 11:15 11: : 11:35 1:3 11:15 1:45 11:35 11:5 11:45 11:45 1:55 Tin (µg/l) µg/l nm nm nm T.O.C. NAC 7.7 < <1.5 < <1.5 < <1.5 <1 <1 T.O.N N NAC <.8 <.8.16 <.8.8 <.8 < <.8 <.2 <.2 <.2 <.2 <.2 <.2 <.2.25 <.2 <.2 <.7 <.7 Total S Solids Uranium µg/l <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Vanadium µg/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5.51 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:5

26 Drogheda Landfill Site Groundwater Quality Monitoring Point: Collected DWR IGV 21 GW Regs 31-Jan Feb Mar Apr-13 8-May Jun Jul-13 7-Aug Sep-13 8-Oct Nov-13 3-Dec Feb-14 8-Apr-14 9-Sep Nov Feb Apr-15 8-Sep Nov Mar Jun-16 Alkalinity CaCO Aluminium ug/l <1 11 <1. <1. <1. <1. <1. <1. <1. Ammonia N.23 N.11 N.175 <.3 <.3 <.3 <.3 <.3 <.3 < <.3 <.2.49 <.2.28 <.2 <.2 <.2 <.2 <.2 <.2 <.11 <.11 Antimony ug/l 5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Arsenic ug/l <1 <1 <1. <1. <1. <1. <1. < <1. Barium ug/l Beryllium ug/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. B.O.D. O2 Boron µg/l Cadmium µg/l <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.1 <.2 <.2.2 <.2 <.2 <.2 <.2 <.2 <.6 <.6 Calcium Ca C.O.D. O2 Chloride Cl Chromium µg/l < < <.5 <.5.7 <1 < <1. < <1. <1. <1. <.2 <.2 Cobalt µg/l <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Coliform Bacteria (No/1 ml ) Conductivity Copper µg/l < < Cyanide.5 1 <.5 <.5 <.5 D.O. % Saturation E_ Coli No/1 ml 1 Fluoride.8 1 < <.2 Iron µg/l 2 2 < <1 13 < <1. 17 <1. <1. <.23 <.23 Lead µg/l < <.5 <.5.9 <.5 < <.5 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. <.6 <.6 Magnesium Mg Manganese µg/l <5. <5. 11 <5. <5. <5. <5. < Mercury µg/l nm nm <.5 nm nm nm nm nm nm nm nm <.5 <.2 Molybdenum µg/l < <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Nickel µg/l < Nitrate N <.7 <.7 Nitrite N <.2 <.2 <.2 <.2 <.2 < <.2 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.4 <.8 <.8 o-phosphate P 3 <.2.19 <.1 ph Phenol.5 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.2 <.25 <.5 <.5 Potassium Sampling Depth m Selenium µg/l 1 <.5.6 <.5 <.5 <.5 <.5 <.5 <.5 <.5 <1 <1 1.5 <1. <1. <1. <1. <1. <1. <1. Silver µg/l nm nm nm Sodium Strontium µg/l Sulphate SO Suspended Solids Temp C Thallium µg/l <.1 <.1 <.1 <.1 < <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Time sampled 11:45 11:35 11:5 11:2 11:45 11:25 12:3 11:35 12: 12:2 13:15 11:55 1:55 11:45 11:1 11:55 11:3 12:1 12:2 11:15 Tin (µg/l) µg/l nm nm nm T.O.C. NAC T.O.N N NAC < <.2 <.2.47 <.2 <.2 <.2 <.7 <.7 Total S Solids Uranium µg/l <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Vanadium µg/l.51 <.5 <.5 <.5.78 <.5 <.5 <.5.61 <1 <1 <1. <1. <1. <1. <1. <1. <1. <1. Zinc µg/l < <.18 <.18 Water Level m OD D.O. is measured in instead of % since March 216 due to a change in laboratory for laboratory analysis. EPA Export :1:56:5