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Annex F Results of Groundwater Baseline Monitoring

Parameters	LOR	Unit	Monitoring Station
			GW1				GW2				GW3				GW4
			Week 1	Week 2	Week 3	Week 4	Week 1	Week 2	Week 3	Week 4	Week 1	Week 2	Week 3	Week 4	Week 1	Week 2	Week 3	Week 4
In-situ data
pH	-	-	5.74	5.98	5.87	6.08	5.45	5.45	5.48	5.43	7.04	7.16	7.13	7.15	6.89	7.08	7.13	7.08
Temperature	-	deg C	28.5	26.8	28.3	27.3	28.3	27.3	28.8	28.5	29.7	28.9	30.9	29.3	27.6	28.2	29.1	26.5
Electrical Conductivity	-	us	69	68	72	87	76	70	79	133	38.3	39.3	39.5	33.9	>3999	>3999	54.8	53
Meter below Groundwater Level	-	m	5.87	6.22	8.88	5.35	9.1	5.96	8.2	8.16	3.88	4.07	3.58	3.84	2.13	2.86	2.48	2.62
Salinity	-	ppt	-	0.042	0.036	0.042	-	0.035	0.039	0.065	>0.2	>0.2	>0.2	>0.2	>0.2	>0.2	>0.2	>0.2
Physical and Aggregate properties
Carbonate Alkalinity as CaCO₃	1	mg/L	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1	<1
Bicarbonate Alkalinity as CaCO₃	1	mg/L	13	6	10	10	10	8	7	7	170	170	165	166	232	241	242	234
Total Alkalinity as CaCO₃	1	mg/L	13	6	10	10	10	8	7	7	170	170	165	166	232	241	242	234
Inorganic Nonmetallic Parameters
Sulphate as SO₄	5	mg/L	<5	<5	<5	<5	6	<5	5	<5	1670	1860	1720	1780	2180	2300	2150	1970
Chloride	1	mg/L	14	13	13	14	15	13	14	13	12100	11300	10600	12400	18300	17200	17000	17800
Ammonia as N	0.1	mg/L	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	0.3	<0.1	0.9	1	1	1.1	3.2	3.4	3.2	3.4
Nitrite as N	0.01	mg/L	0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	<0.01	0.01
Nitrate as N	0.1	mg/L	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1
Total Phosphorus as P	0.1	mg/L	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	<0.1	0.1	<0.1	<0.1	<0.1	0.2	<0.1	<0.1	<0.1
Sulphide as S	0.1	mg/L	<0.1	<0.2	<0.2	<0.2	<0.1	<0.2	<0.2	<0.2	<0.1	<0.2	<0.2	<0.2	<0.1	<0.2	<0.2	<0.2
Aggregate Organics
Total Organic Carbon	1	mg/L	22	3	4	2	4	<1	<1	<1	<5 ^(a)	<5 ^(a)	<5 ^(a)	<5 ^(a)	6	<5 ^(a)	<5 ^(a)	<5 ^(a)
Chemical Oxygen Demand	15	mg/L	106	17	<15	<15	22	<15	<15	<15	<25 ^(a)	<25 ^(a)	<25 ^(a)	<25 ^(a)	<25 ^(a)	<25 ^(a)	27	<25 ^(a)
Biochemical Oxygen Demand	2	mg/L	48	10	7	4	9	<4	<2	<2	<2	<2	<2	<2	12	<2	3	3

Parameters

LOR

Unit

Monitoring Station

GW1

GW2

GW3

GW4

Week 1

Week 2

Week 3

Week 4

Week 1

Week 2

Week 3

Week 4

Week 1

Week 2

Week 3

Week 4

Week 1

Week 2

Week 3

Week 4

Metals and Major Cations

Cadmium

0.1

mg/L

<0.1

Chromium

0.1

mg/L

<0.1

Copper

0.1

mg/L

<0.1

Lead

0.1

mg/L

0.1

<0.1

Manganese

0.1

mg/L

<0.1

0.2

<0.1

4.6

4.5

3.1

2.6

Nickel

0.1

mg/L

<0.1

Zinc

0.1

mg/L

<0.1

Calcium

0.5

mg/L

1.19

1.66

1.46

1.56

1.09

0.62

1.06

0.51

604

508

481

428

510

467

417

345

Iron

0.1

mg/L

0.1

0.3

0.2

0.1

1.9

0.9

<0.1

1.2

1.3

1.2

1.1

1.3

Potassium

0.5

mg/L

2.93

3.38

3.17

3.33

3.77

3.56

3.69

3.08

190

214

227

199

318

373

371

324

Magnesium

0.5

mg/L

0.60

0.68

0.64

0.69

0.86

0.67

1.12

0.53

651

890

870

830

1040

1310

1350

1170

Sodium

0.5

mg/L

14.6

13.1

11.1

15.3

10.7

9.6

6800

7070

6760

7040

10200

10400

10200

11000

Notes:

(a) LOR: Limit of Reporting

(b) Due to high chloride content, samples required dilution prior to COD and TOC analysis, the LOR has been adjusted accordingly.