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Case Studies

Water

Water consumption (thousand kL)
2013 2014 2015 2016 2017

Total water withdrawn

575,965

509,028

503,029

201,152

217,327

Surface water

55,571

52,574

9,595

14,595

8,285

Groundwater

163,612

144,975

124,351

111,420

110,701

Precipitation

105,240

89,884

95,074

70,800

94,216

Municipal water

1,845

1,750

2,275

4,337

4,126

Ocean water used for processing

32,699

30,809

62,687

0

0

Ocean water used for cooling

216,997

189,036

209,048

0

0

Total water consumed
(total withdrawn minus total discharged)

162,209

146,154

128,874

107,586

115,747

Total water recycled

209,361

229,011

185,742

227,960

297,379

Total water used
(consumed + recycled)

371,570

375,165

314,616

335,546

413,126

Percent recycled
(total water recycled/total water used)

56%

61%

59%

68%

72%

Note: Total water consumed, total water withdrawn, and ocean water used for processing and cooling decreased significantly beginning in 2016 due to the divestiture of our Batu Hijau operation in Indonesia.
Total water discharge by destination (thousand kL)
Destination 2013 2014 2015 2016 2017

Untreated discharge to external organizations for reuse

923

507

557

0

0

Untreated discharge to groundwater

21,939

27,374

1,815

0

4,194

Untreated discharge to sewers

0

0

Untreated discharge to surface water

61,670

47,109

83,924

18,017

30,575

Untreated discharge to ocean

216,997

189,036

209,048

0

0

Total untreated water discharge

301,529

264,026

295,344

18,017

34,769

Treated discharge to surface water by acid water treatment

38,018

30,076

29,809

25,542

23,465

Treated discharge by other

54,979

53,220

38,882

35,858

27,795

Treated discharge by process water treatment

6,825

4,051

0

0

0

Treated discharge by reverse osmosis

11,966

11,066

10,120

14,149

15,551

Treated discharge by sewage treatment

440

434

0

0

0

Total treated discharge of water

112,227

98,848

78,811

75,549

66,811

2017 Consumptive water quality (ML)
Water quality Total As a % of total

Category 1

91,115

79%

Category 2

11,341

10%

Category 3

13,292

11%

Note: Water quality categories are based on the Minerals Council of Australia definitions.
2017 Water performance by site (thousand kL)
Sites Total water withdrawn Total water discharged Total water consumed Total water recycled

Africa

Ahafo

10,975

1,593

9,382

5,999

Akyem

6,208

1,570

4,638

6,780

Australia

Boddington

19,954

0

19,954

38,503

KCGM

11,872

4,194

7,678

11,854

Tanami

2,527

0

2,527

7,227

North America

Carlin

51,622

39,321

12,301

63,186

CC&V

3,708

140

3,568

65,345

Long Canyon

569

0

569

4,636

Twin Creeks

17,703

10,204

7,499

22,491

Phoenix

4,963

43

4,920

13,921

South America

Merian

22,450

6,702

15,749

19,807

Yanacocha

64,776

37,814

26,962

37,628

Total

217,327

101,580

115,747

297,379

Discharges that exceeded metals and/or other parameters (thousand kL)
2013 2014 2015 2016 2017

Discharges that exceeded metals and/or other parameters

1,114.0

180.9

49.1

18.6

0.77

Note: In 2017, the total discharges that exceeded metals and/or other parameters are based on an estimated 0.065 thousand kL of mine impacted water released off site at our Phoenix operation in Nevada; two discharges that exceeded copper water quality parameters totaling an estimated 0.70 thousand kL released off site at our Yanacocha operation in Peru; and two events that occurred on a single day during heavy rains at the Mt. Leyshon legacy mine in Australia where cadmium levels exceeded the contaminant limit as measured by two auto samplers.

Energy and Climate Change

Energy consumption – direct and indirect by source (million gigajoules [GJ])
2013 2014 2015 2016 2017

DIRECT ENERGY CONSUMPTION BY SOURCE (GJ)

Direct non-renewable

57.2

52.1

45.8

31.1

31.9

Coal

27.4

26.4

18.9

10.1

10.4

Diesel

26.3

22.6

24.4

18.3

18.7

Waste oil

0.03

0.04

0.04

0.00

0.00

Gasoline

0.2

0.1

0.1

0.1

0.2

Natural gas

2.9

1.8

1.8

2.1

2.2

Propane

0.2

0.8

0.3

0.2

0.2

Heavy fuel oil

0.3

0.2

0.2

0.0

0.0

Aviation fuel

0.0

0.0

TR

0.2

0.0

Direct renewable energy consumption

0.4

0.3

0.3

0.2

0.2

Total direct energy consumed

57.5

52.4

46.0

31.3

32.1

INDIRECT ENERGY CONSUMPTION BY SOURCE (GJ)

Grid electricity from renewable sources

3.9

3.8

3.5

3.6

3.3

Grid electricity from non-renewable sources

5.0

5.2

6.5

8.6

8.9

Total grid electricity (indirect energy generation)

8.9

9.0

10.0

12.2

12.2

Total combined direct and indirect

66.4

61.4

56.0

43.5

44.3

Total electricity consumption (million gigajoules [GJ])
2013 2014 2015 2016 2017

Direct electricity consumption

Total on-site (direct) electricity generated

9.6

8.9

6.7

3.8

3.8

Diesel power

0.7

0.7

0.9

0.7

0.6

Waste oil

0.000

0.000

0.010

0.004

0.004

Coal-fired power

8.5

8.2

5.8

3.1

3.2

Natural gas–fired power

0.37

0.0

0.0

0.0

0.0

LPG/propane power

0

0

0

0

0

Total on-site (direct) electricity sold

1.5

1.1

1.2

0.0

0.0

Total on-site (direct) electricity consumed

8.4

7.8

5.5

3.8

4.3

Note: Data reflects total fuel usage for power production and mining operations, converted to gigajoules (GJ).
Direct non-renewable energy consumption by source as a percentage of total consumption
2013 2014 2015 2016 2017

Coal

47.9%

50.7%

41.3%

32.5%

32.8%

Diesel

46.0%

43.4%

53.3%

58.8%

58.6%

Waste oil

<1%

<1%

<1%

0%

0%

Gasoline

<1%

<1%

<1%

<1%

<1%

Natural gas

5.1%

3.5%

3.9%

6.8%

6.8%

Propane

<1%

1.5%

<1%

<1%

<1%

Heavy fuel oil

<1%

<1%

<1%

0%

<1%

Aviation fuel

0%

<1%

0%

<1%

0.0

Greenhouse gas emissions (CO2-e) (million tonnes)
2013 2014 2015 2016 2017

Total direct emissions

4.5

4.1

3.8

2.7

3.1

From coal

2.2

2.1

1.7

0.9

1.0

From diesel

1.8

1.6

1.7

1.4

1.6

From waste oil

0.0003

0.0003

0.0003

0.0001

0.0001

From gasoline

0.01

0.01

0.01

0.01

0.01

From natural gas

0.15

0.09

0.09

0.10

0.11

From propane

0.01

0.05

0.02

0.01

0.01

From heavy fuel oil

0.020

0.020

0.020

0.001

0.009

From aviation fuel

0.0003

0.0020

0.0001

0.0130

0.0000

From ammonium nitrate, fuel oil (ANFO)

0.004

0.002

0.001

0.001

0.009

From heavy ANFO

0.002

0.006

0.009

0.002

0.001

From emulsion

0.020

0.010

0.020

0.013

0.005

From autoclave

0.11

0.11

0.11

0.11

0.11

From roasters

0.08

0.11

0.11

0.09

0.10

From quick lime production

0.04

0.04

0.04

0

0

From ARD neutralization

0.003

0.003

0.000

0.000

0.000

Sulfur hexafluoride (SF6)

TR

TR

TR

TR

TR

Hydrofluorocarbon (HFC)

0.010

0.000

0.000

0.003

0.003

Methane (CH4)

TR

TR

0

0

0

Total indirect emissions (Scope 2)

1.3

1.2

1.7

1.6

1.6

Total emissions (Scope 1 and 2)

5.8

5.3

5.54

4.3

4.7

TR = Trace, which is <0.0001
Note: Greenhouse gas emissions are calculated using emission factors from the Climate Registry. We do not track and report Scope 3 emissions.
2017 Electric power sourced from hydroelectric and other renewables (kWh)
Country Total electricity consumed from grid and site generation Total grid electricity from renewable sources Total site electricity from renewable sources Percent of electric power sourced from hydroelectric and other renewables

Ghana

489,971,645

189,801,632

0

38.7%

Peru

459,666,610

232,386,163

6,648

50.6%

U.S.

2,101,769,018

491,733,194

0

23.4%

Waste Management

Waste streams
Units 2013 2014 2015 2016 2017

Waste rock

Total waste rock generated

million tonnes

568.7

406.6

340.1

335.9

346.0

Potentially acid-generating waste rock

million tonnes

293.4

148.4

105.3

98.3

90.2

Non-potentially acid-generating waste rock

million tonnes

275.3

258.2

234.8

237.5

255.8

Tailings

Total tailings

million tonnes

173.0

146.1

135.9

96.8

110.9

Tailings to surface

million tonnes

139.8

124.1

94.6

96.8

110.9

In-pit tailings

million tonnes

1.3

0.0

0.1

0.0

0.0

Sub-surface tailings

million tonnes

0.0

0.0

0.0

0.0

0.0

Sub-sea tailings

million tonnes

31.9

21.9

41.2

0.0

0.0

Hazardous waste

Total hazardous waste generated

thousand tonnes

63.6

38.9

40.0

12.0

12.2

Total hazardous waste treated/disposed off site

thousand tonnes

2.6

2.0

2.9

2.1

1.9

Total hazardous waste treated/disposed on site

thousand tonnes

35.6

14.1

16.0

5.4

6.2

Total hazardous waste recycled (includes on-site and off-site weight estimates)

thousand tonnes

25.4

22.9

21.2

4.5

4.1

Non-hazardous waste

Total non-hazardous waste generated

thousand tonnes

60.4

49.5

46.0

34.8

38.1

Total non-hazardous waste disposed in on-site landfill

thousand tonnes

14.6

13.2

6.9

7.2

7.5

Total non-hazardous waste disposed in off-site landfill

thousand tonnes

20.1

7.9

14.4

6.3

4.4

Total non-hazardous waste incinerated (includes on-site and off-site weight estimates)

thousand tonnes

0.1

0.2

0.1

0.1

0.1

Total non-hazardous recycled waste (includes on-site and off-site weight estimates)

thousand tonnes

25.7

28.2

24.6

21.2

26.2

Other

Elemental mercury (Hg)

tonnes

24.8

20.9

12.5

19.0

26.6

Note: All hazardous and non-hazardous wastes are based on weight and volume estimates provided by staff or from information provided by the waste treatment/disposal/recycling contractor. Hazardous and non-hazardous waste figures do not include our Long Canyon operation. As enterprise-level data collection and reporting systems continue to expand, weight estimates may be restated in future reports.
Materials usage
Units 2013 2014 2015 2016 2017

Cement

thousand tonnes

93.6

81.7

72.8

65.1

71.2

Cyanide (CN)

thousand tonnes

47.4

46.2

49.2

57.8

68.6

Grinding media

thousand tonnes

104.1

97.7

102.7

83.2

97.9

Lime

thousand tonnes

472.7

483.6

515.8

513.1

513.5

Tires (by weight)

thousand tonnes

15.0

12.8

12.2

9.2

10.0

Lubricants

thousand kL

13.8

13.2

11.1

12.5

12.1

HCL

thousand kL

6.7

6.7

6.3

7.0

12.1

H2SO4

thousand kL

58.9

56.5

65.4

78.0

78.7

Coal

thousand tonnes

1,201.3

1,120.7

926.7

488.1

510.0

Diesel

thousand kL

679.4

588.1

633.9

535.8

594.5

Waste oil

thousand kL

0.0

1.0

1.1

0.1

0.1

Gasoline

thousand kL

5.4

4.0

4.1

4.3

5.3

Natural gas

thousand gigajoules (GJ)

2,859.0

1,829.8

1,787.2

2,077.3

2,185.5

Propane

thousand kL

6.1

30.0

10.6

8.7

8.8

Heavy fuel oil

thousand kL

6.7

6.4

5.6

5.8

3.7

Aviation fuel

thousand kL

0.4

0.7

0.1

0.0

0.0

ANFO

thousand tonnes

21.9

12.9

7.2

4.7

3.1

Emulsion

thousand tonnes

89.7

79.7

51.6

77.8

51.3

Heavy ANFO

thousand tonnes

9.0

35.3

88.3

11.8

8.2

Note: Heavy fuel oils used for on-site energy are reported separately in the “Energy consumption – direct and indirect by source (million gigajoules [GJ]” table in the Energy and Climate section of the Environmental Data Appendix.

Biodiversity

Biodiversity impacts
Units 2013 2014 2015 2016 2017

Sites in which biodiversity is covered in EIA or similar document

number

11 of 14

11 of 13

11 of 11

11 of 11

10 of 13

Mine lease area

thousand hectares

469

376

364

256.49

288.04

Potential area of impact

thousand hectares

187

185

185

44

59

IUCN management areas within area of potential impact

thousand hectares

0

0

0

0

0

UNESCO World Heritage Sites within area of potential impact

thousand hectares

0

0

0

0

0

UNESCO Man and the Biosphere Reserves within area of potential impact

thousand hectares

0

0

0

0

0

Ramsar Wetlands within area of potential impact

thousand hectares

0

0

0

0

0

Alliance for Zero Extinction area within area of potential impact

thousand hectares

0

0

0

0

0

Key biodiversity areas within area of potential impact

thousand hectares

0

0

0

0

0

Important bird areas within area of potential impact

thousand hectares

0

0

0

0

0

Total IUCN listed wildlife mortalities

number

238

237

244

129

117

Vulnerable

number

0

0

0

0

0

Endangered

number

3

1

1

0

0

Critically endangered

number

0

0

0

0

0

Near threatened

number

6

5

3

1

2

Least concern

number

229

231

240

128

110

Not specified

number

0

0

0

0

5

Air Quality

Air emissions
Units 2013 2014 2015 2016 2017

SOx (SO2)

thousand tonnes

171.6

168.2

34.0

0.1

1.5

NOx (NO2)

thousand tonnes

6.9

6.4

7.1

5.5

6.9

PM10

thousand tonnes

22.3

19.0

19.8

17.3

16.7

Carbon monoxide (CO)

thousand tonnes

2.5

2.3

2.6

3.4

3.0

Mercury (Hg)

tonnes

3.5

4.0

2.4

0.4

0.7

Arsenic (As)

tonnes

6.0

4.6

3.9

3.4

3.0

Lead (Pb)

tonnes

0.6

0.5

0.6

0.6

0.6

Selenium (Se)

tonnes

3.8

4.1

0.1

0.1

0.1

Persistent organic pollutants (POPs)

tonnes

*

*

*

TR

TR

Volatile organic compounds (VOCs)

thousand tonnes

*

*

*

0.5

0.4

TR = Trace, which is <0.0001
Note: Our Australia sites operated by Newmont report air emissions on a fiscal year basis (July 1 to June 30); however, Kalgoorlie Consolidated Gold Mines (KCGM) reports its air emissions on a calendar year basis (January 1 to December 31). Beginning in 2016, we expanded our air quality reporting to include POPs and VOCs.
* Beginning in 2016, we expanded our air quality reporting to include POPs and VOCs.

Cyanide Management

2017 Cyanide incidents
Site

Ahafo

0

0

0

0

0

0

Akyem

0

0

0

0

0

0

Boddington

1

0

0

0

11

9

Carlin

0

0

0

0

1

0

CC&V

0

0

0

0

5

4

Tanami

0

0

0

0

3

8

KCGM

0

0

0

0

0

5

Lone Tree

0

0

0

0

0

0

Long Canyon

0

0

0

0

2

0

Merian

0

0

0

0

0

0

Phoenix

0

0

0

0

1

0

Twin Creeks

0

0

0

0

1

0

Yanacocha

0

0

0

0

1

1

Total

1

0

0

0

25

27

  Incidents of cyanide exposure resulting in hospitalization
  Incidents where release off the mine site required response or remediation
  Incidents where release on or off the mine site resulted in significant adverse effects to health
  Incidents where release on or off the mine site resulted in significant adverse effects to the environment
  Incidents where release on or off the mine site required reporting under applicable regulations
  Incidents where release caused exceedances of applicable limits for cyanide
2017 Cyanide Code summary data
Total

Incidents of cyanide exposure resulting in hospitalization

1

Incidents where release off the mine site required response or remediation

0

Incidents where release on or off the mine site resulted in significant adverse effects to health

0

Incidents where release on or off the mine site resulted in significant adverse effects to the environment

0

Incidents where release on or off the mine site required reporting under applicable regulations

25

Incidents where release caused exceedances of applicable limits for cyanide

27

Closure and Reclamation

2017 Reclamation in progress by country (in hectares [ha])
Country Reclamation area

Australia

1,023.5

Ghana

162.5

Peru

745.6

Suriname

19.0

U.S.

3,089.1

Total

5,039.7

Amount of land disturbed or rehabilitated (thousand ha)
2013 2014 2015 2016 2017

New disturbance during reporting period

0.66

0.39

0.30

0.59

0.71

Total reclamation in progress

4.30

4.40

3.61

4.20

5.04

Achieved reclamation (to agreed upon end use) during reporting period

0.06

0.04

0.04

0.00

0.18

Total disturbance not yet reclaimed to agreed upon end use at end of reporting period

33.90

31.70

31.93

31.64

33.12

Environmental Releases

Environmental releases by number of incidents
2013 2014 2015 2016 2017

Total environmental releases on site

70

84

43

81

78

Total environmental releases off site

1

0

0

0

1

Total environmental releases

71

84

43

81

79

Cyanide releases

69

76

41

77

77

Mercury releases

0

0

1

2

0

Significant hydrocarbon releases

1

6

1

1

0

Significant chemical releases

1

1

0

0

2

Other significant releases

0

1

0

1

0

Environmental releases by volume
2013 2014 2015 2016 2017

Cyanide releases (kL)*

3,373

99

582

2,500

3,406

Mercury releases (kg)

0

0

0.01

1.7

0

Significant hydrocarbon releases (kL)

1

42

2

1.5

0

Significant chemical releases (kL)

723

40

0

0

0

Other significant releases (kL)

0

5

0

30.5

0

* The 2016 cyanide release data was restated from the 8,271.4 kL reported in 2016 to remove weak acid dissociable cyanide (WAD) releases that were contained within the tailings storage facilities. All cyanide releases in 2017 were on site, contained within the site boundaries and remediated according to applicable regulations. Significant releases are those categorized as having an environmental impact of level 3 or greater on a scale of level 1 to 5.