MOE Water sampling results

MOE WATER SAMPLING RESULTS, HIGHWAY #7
July and August, 2001

These lab results were obtained by special request from the Ministry of the Environment. They show that, since July 26, arsenic concentrations in the Moira River have exceeded the MOE’s Certificate of Approval (C of A) for the site by up to 75%. The C of A, issued in July 1982 states that “the treated effluent loading to the [Moira] river must not contribute to river arsenic concentrations above 0.2 mg/l at any time.”

Parameter

Sample

Provincial Guideline* Federal Criteria**

Arsenic

20

Cobalt

11

Nickel

<1

all units in µg/g

Date

Arsenic Concentration Exceeds C of A by (%)

05/07/01

0.066

13/07/01

0.092

19/07/01

0.144

26/07/01

0.267 33.5

31/07/01

0.273 36.5

01/08//01

0.27 35

02/08/01

0.25 25

02/08/01

0.25 25

03/08/01

0.27 35

03/08/01

0.25 25

07/08/01

0.28 40

07/08/01

0.28 40

08/08/01

0.30 50

08/08/01

0.31 55

09/08/01

0.32 60

09/08/01

0.30 50

10/08/01

0.34 70

13/08/01

0.34 70

14/08/01

0.35 75

15/08/01

0.33 65

16/08/01

0.32 60

all units in mg/L