Contract: Wilton Processing Site. Contract No: D6267. Client: York Potash Ltd Title: PID Results Page 5 TEL: FAX:

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1 DUNELM GEOTECHNICAL & ENVIRONMENTAL LTD, FOUNDATION HOUSE, ST JOHN S ROAD, MEADOWFIELD, DURHAM, DH7 8TZ TP m 0 TP m 0 TP m 0 TP m 0 TP524 E 0.60m 0 TP524 S 0.60m 0 TP524 S 1.50m 0 TP524 S 2.50m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0.8 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 Contract: Wilton Processing Site Contract No: D6267 TEL: FAX: Client: York Potash Ltd Title: PID Results Page 5

2 DUNELM GEOTECHNICAL & ENVIRONMENTAL LTD, FOUNDATION HOUSE, ST JOHN S ROAD, MEADOWFIELD, DURHAM, DH7 8TZ TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0.7 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 TP m 0 Contract: Wilton Processing Site Contract No: D6267 TEL: FAX: Client: York Potash Ltd Title: PID Results Page 6

3 DUNELM GEOTECHNICAL & ENVIRONMENTAL LTD, FOUNDATION HOUSE, ST JOHN S ROAD, MEADOWFIELD, DURHAM, DH7 8TZ TP m 0 TP m 0 TP m 0 TP m 0 Contract: Wilton Processing Site Contract No: D6267 TEL: FAX: Client: York Potash Ltd Title: PID Results Page 7

4 Factual Report August 2014 Appendix H Appendix H Digital Data Report: D6267 Wilton Processing Plant Prepared For: York Potash Ltd

5 A P P E N D I X 9 HIERARCHY OF SOURCES USED IN DERIVATION OF RECEPTOR SPECIFIC ASSESSMENT CRITERIA

6 HIERARCHY OF SOURCES USED IN DERIVATION OF RECEPTOR SPECIFIC ASSESSMENT CRITERIA RECEPTOR HIERARCHY Human Health Soils 1) CLEA SGV values 2) LQM Generic Human Health Assessment Criteria 3) ICRCL Guidance of Fire Hazards 4) Dutch Guideline Values 5) USEPA Screening Values Water 1) UK Drinking Water Guideline 2) Private Water Supplies Regulations Soil Gas 1) CIRIA Guidance Soil Vapours 1) CIRIA Guidance Property Buried Concrete Potable Water Soils and Water 1) BRE Special Digest 1 Soils 1) Water Regulations Advisory Scheme Guidance 2) USEPA Screening Values 3) Dutch Guideline Water 1) UK Drinking Water Guideline 2) Private Water Supplies Regulations Soil Gas 1) CIRIA Guidance Soil Vapours 1) CIRIA Guidance Controlled Waters Surface Watercourses Soils 1) USEPA Screening Values 2) Dutch Guideline Values Water 1) Environment Agency EQS 2) Environment Agency Advice on MTBE 3) Dutch Guideline Values Groundwater Soils 1) USEPA Screening Values 2) Dutch Guideline Values Water 1) UK Drinking Water Guideline 2) Private Water Supplies Regulations 3) Environment Agency Advice on MTBE 4) Dutch Guideline Values Landscaping Soils 1) ICRCL 59/83 Water None September PortOR0Rev14 Appendix 9

7 Determinand Non-Human Health Assessment Values FWSC Human Health Generic Assessment Values (GAV) in mg/kg Commercial/ Industrial ph <5 Total sulphate 1000 Water soluble sulphate 500 Sulphide 250 Chloride 100 Total cyanide 20 Inorganic cyanide (free) 16,000 Thiocyanate ph 5 or Complex cyanide 650 ph<5 Phenol 5 3,200 TPH Screen 1,000 Asbestos Present Arsenic 640 Cadmium 230 Total Chromium/ Chromium VI 35 Chromium III 8,840 Copper ,700 Lead (750) 7,650 Inorganic Mercury 3,600 Elemental Mercury 26 Methylmercury 410 Nickel 250 1,800 Selenium 13,000 Zinc ,000 September PortOR0Rev14 Appendix 9

8 FWSC Human Health Generic Assessment Values (GAV) in mg/kg Determinand Commercial/ Industrial SOM 1% Aliphatic C5-C (300 sol) Aliphatic C6-C (140 sol) Aliphatic C8-C (78 sol) Aliphatic C10-C (48 sol) Aliphatic C12-C (24 sol) Aliphatic C16-C21 Aliphatic C21-C35 999,999 Aliphatic C35-C44 999,999 Aromatic C5-C (1200 sol) Aromatic C7-C (870 vap) Aromatic C8-C (610 vap) Aromatic C10-C (360 sol) Aromatic C12-C (170 sol) Aromatic C16-C Aromatic C21-C Aromatic C35-C Aliphatic & Aromatic C44-C Benzene 28 Toluene 870 Ethylbenzene 520 Xylene Acenaphthene (57 sol) Acenaphthylene (86 sol) Anthracene Benz(a)anthracene 90 Benzo(a)pyrene 14 Benzo(b)fluoranthene 100 Benzo(g,h,i)perylene 650 Benzo(k)fluoranthene 140 Chrysene 140 Dibenz(a,h)anthracene 13 Fluoranthene Fluorene (31 sol) Indeno(1,2,3-cd)pyrene 60 Naphthalene 200 (76 sol) Phenanthrene Pyrene September PortOR0Rev14 Appendix 9

9 Ground and Surface Water Assessment Criteria Waters Assessment Criteria Substance Surface Waters (mg/l) Fresh Water Source Groundwater (mg/l) Source METALS Aluminium 0.2 UK DWS Arsenic 0.05 Annex G EQS 0.01 EU DWS Boron 2 Annex G EQS 1 EU DWS Cadmium (a) EU standard EU DWS Calcium 250 UK DWS Chromium (III) UKTAG 0.05 (total Cr) EU DWS Chromium (VI) UKTAG Copper (a) Annex G EQS 2 EU DWS Cyanide (Total) 0.05 UK DWS Iron 1 Annex G EQS 0.2 EU DWS Iron (Ferric) Iron (Ferrous) Soluble Iron Lead EU standard EU DWS Magnesium 50 UK DWS Manganese 0.05 UK DWS Mercury (methyl) EU standard EU DWS Nickel 0.02 EU standard 0.02 EU DWS Potassium 10 EU DWS Sodium 200 EU DWS Selenium 0.01 EU DWS Silver Annex G EQS 0.01 UK DWS Zinc (a) Annex G EQS 3 WHO taste threshold INORGANICS Free cyanide (free) Annex G EQS 0.05(total) EU DWS Ammonia EQS 0.5 UK DWS Ammoniacal Nitrogen 0.5 IK Bromate 0.01 UK DWS Bromide Chloride 250 EQS 250 UK DWS Carbonate Flouride 1.5 UK DWS Nitrates 50 EU DWS Nitrate 50 EU DWS Nitrite WHO Total Nitrogen 1 EU standard Phosphate September PortOR04 Rev. 3 - Appendix 9

10 Ground and Surface Water Assessment Criteria Sulphate 250 UK DWS Sulphide EQS Alkalinity and carbonate Conductivity ph Annex G EQS US EPA (SDWR) Total Dissolved Solids ORGANICS Total organic carbon Hydrocarbons BTEX Benzene 0.01 Annex G EQS UK DWS Ethylbenzene 0.02 Annex G EQS 0.3 WHO DW Toluene 0.05 EQS 0.7 WHO DW P-xylene 0.03 (all isomers) Annex G EQS 0.5 WHO DW TPH Total TPH Aliphatic Aliphatic Ethylbenzene EQS used as surrogate Aliphatic WHO DWS for C8-C16 Aliphatic Aliphatic WHO DWS Aliphatic NV insoluble TPHCWG NV insoluble TPHCWG Aliphatic NV insoluble TPHCWG NV insoluble TPHCWG Aromatic 5-7 (waters 6-7) 0.01 benzene EQS UK DWS for benzene Aromatic 7-8 (waters7-8) 0.05 toluene EQS 0.7 WHO DWS for toluene Aromatic WHO DWS for ethyl benzene Aromatic WHO DWS Aromatic WHO DWS ethlybenzene EQS as a surrogate Aromatic WHO DWS Aromatic WHO DWS Aromatic WHO DWS PAH (US EPA-16) Acenaphthene Acenaphthylene NV NV Anthracene EU standard Benzo(a)anthracene B(a)P threshold Benzo(a)pyrene EU standard EU DWS Benzo(b)fluoranthene Benzo(k)fluoranthene (sum) EU standard (sum) EU DWS Benzo(ghi)perylene Indeno(123-cd)pyrene (sum) EU standard Chrysene NV Dibenzo(ah)anthracene B(a)P threshold Fluoranthene EU standard Fluorene NV Naphthalene EU standard Phenanthrene NV Pyrene OTHER (unchlorinated) Phenol 0.03 EQS UK DWS MTBE EA report MTBE EA report MTBE September PortOR04 Rev. 3 - Appendix 9

11 A P P E N D I X 10 DEVELOPMENT DETAILS

12 A P P E N D I X 10.1 YP DRAWING 3000-LND-SS-DWG-012 REV 2 MTS VERTICAL ALIGNMENT

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14 A P P E N D I X EIA-001 OVERALL SITE LAYOUT FOR PLANNING

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16 A P P E N D I X EIA-002 OVERALL SITE LAYOUT FOR PLANNING