Water Quality Table

This tables summarizes water quality from all of our real-time monitoring stations. Water quality is represented by water temperature, clarify, pH and oxygen in the water.

Station	Dissolved Oxygen (milligrams per litre)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	10.48	8.15	11.13
Credit River at Cataract Falls	10.23	10.16	11.25
Credit River at Highway 10 N	9.03	8.65	12.24
Credit River at Mississaugua Golf and Country Club	10.47	10.10	12.37
Credit River at Old Derry Road	9.82	9.45	12.30
Fletchers Creek Real-Time Water Quality Station	10.31	9.13	10.88
Huttonville Creek Real-Time Water Quality Station	10.55	9.50	11.25
Levi Creek at Derry Road	10.29	10.11	11.57
Sheridan Creek at Rattray Marsh Conservation Area	10.40	8.68	10.71
Silver Creek at Willow Park	9.87	9.30	10.98
West Credit River at Belfountain Conservation Area	10.70	10.53	11.43

Station	pH
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	8.21	8.13	8.58
Credit River at Cataract Falls	8.22	8.22	8.34
Credit River at Highway 10 N	7.97	7.96	8.20
Credit River at Mississaugua Golf and Country Club	8.31	8.31	8.86
Credit River at Old Derry Road	8.41	8.37	8.73
Fletchers Creek Real-Time Water Quality Station	7.39	7.38	7.88
Huttonville Creek Real-Time Water Quality Station	8.18	8.08	8.40
Levi Creek at Derry Road	8.00	7.99	8.31
Sheridan Creek at Rattray Marsh Conservation Area	8.07	8.03	8.42
Silver Creek at Willow Park	8.44	8.39	8.74
West Credit River at Belfountain Conservation Area	8.40	8.40	8.53

Station	Water Temperature (degrees Celcius)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	8.5	8.5	9.8
Credit River at Cataract Falls	7.0	6.8	7.6
Credit River at Highway 10 N	3.8	3.7	4.7
Credit River at Mississaugua Golf and Country Club	7.9	7.7	8.9
Credit River at Old Derry Road	7.4	7.4	8.2
Fletchers Creek Real-Time Water Quality Station	7.9	7.9	8.6
Huttonville Creek Real-Time Water Quality Station	7.5	7.5	8.9
Levi Creek at Derry Road	7.8	7.8	8.5
Sheridan Creek at Rattray Marsh Conservation Area	8.0	8.0	9.4
Silver Creek at Willow Park	8.7	8.7	11.3
West Credit River at Belfountain Conservation Area	6.9	6.9	7.9

Station	Air Temperature (degrees Celcius)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	3.4	3.4	9.0
Credit River at Cataract Falls	1.5	1.5	7.8
Credit River at Highway 10 N	2.6	2.6	9.0
Credit River at Mississaugua Golf and Country Club	4.0	4.0	9.9
Credit River at Old Derry Road	3.8	3.8	9.3
Fletchers Creek Real-Time Water Quality Station	3.6	3.6	9.2
Huttonville Creek Real-Time Water Quality Station	2.7	2.7	9.1
Levi Creek at Derry Road	3.8	3.8	9.2
Sheridan Creek at Rattray Marsh Conservation Area	3.3	3.3	9.9
Silver Creek at Willow Park	2.7	2.7	8.9
West Credit River at Belfountain Conservation Area	2.0	2.0	7.9

Station	Chloride (milligrams per litre)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	61	22	579
Credit River at Cataract Falls	168	162	177
Credit River at Highway 10 N	286	285	379
Credit River at Mississaugua Golf and Country Club	70	49	121
Credit River at Old Derry Road	121	120	150
Fletchers Creek Real-Time Water Quality Station	109	60	237
Huttonville Creek Real-Time Water Quality Station	114	85	165
Levi Creek at Derry Road	430	313	438
Sheridan Creek at Rattray Marsh Conservation Area	28	13	656
Silver Creek at Willow Park	100	88	243
West Credit River at Belfountain Conservation Area	56	53	59

Station	Specific Conductivity (microsiemens per centimetre)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	61	22	579
Credit River at Cataract Falls	168	162	177
Credit River at Highway 10 N	286	285	379
Credit River at Mississaugua Golf and Country Club	70	49	121
Credit River at Old Derry Road	121	120	150
Fletchers Creek Real-Time Water Quality Station	109	60	237
Huttonville Creek Real-Time Water Quality Station	114	85	165
Levi Creek at Derry Road	430	313	438
Sheridan Creek at Rattray Marsh Conservation Area	28	13	656
Silver Creek at Willow Park	100	88	243
West Credit River at Belfountain Conservation Area	56	53	59

Station	Turbidity (Nephelometric Turbidity Units)
Station	Latest	24 Hour Min	24 Hour Max
Cooksville Creek at Lakeshore Rd (Water Quality Station)	15.4	0.0	349.1
Credit River at Cataract Falls	5.2	0.0	5.8
Credit River at Highway 10 N	9.4	0.0	30.8
Credit River at Mississaugua Golf and Country Club	51.9	0.0	1684.0
Credit River at Old Derry Road	42.5	0.0	52.3
Fletchers Creek Real-Time Water Quality Station	57.6	0.0	149.6
Huttonville Creek Real-Time Water Quality Station	46.2	23.9	109.6
Levi Creek at Derry Road	35.4	0.0	63.4
Sheridan Creek at Rattray Marsh Conservation Area	22.5	0.0	2916.0
Silver Creek at Willow Park	29.3	1.2	142.3
West Credit River at Belfountain Conservation Area	7.6	4.5	17.5

Please note that Credit Valley Conservation’s real time network will not be switching to Daylight Savings Time. Time shown is standard time.

This information is provided for reference only and does not replace water safety and flood advisory statements issued by Credit Valley Conservation.