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