North Sask. River  Reach: Lea Park to Lloydminster Ferry

Chemical, Physical or Biological Variable

Unit

Acceptable Limit or Limits

Nutrients

Open

Closed

Total Phosphorus

mg/L

0.253

0.063

0.278

0.115

Total Dissolved Phosphorus

mg/L

0.026

0.048

0.046

0.101

Total Nitrogen

mg/L

1.169

1.175

1.230

1.225

Nitrate as N

mg/L

3

Ammonia Un-ionized

mg/L

0.019^a

Major Ions

Total Dissolved Solids

mg/L

500

Sulphate Dissolved

mg/L

250

Sodium Dissolved

mg/L

200

Fluoride Dissolved

mg/L

0.18

Chloride Dissolved

mg/L

100

Physicals and Other

pH Lab

pH units

6.5-9.0

pH Field

pH units

6.5-9.0

Oxygen Dissolved

    Temperature > 5°C (Open Season)

mg/L

5

    Temperature < 5°C (Closed Season)

mg/L

3

Sodium Adsorption Ratio

rel units

3

Total Suspended Solids

mg/L

5.0-295.8

Reactive Chlorine Species

mg/L

0.0005

Cyanide (free)

mg/L

0.005

E. Coli

No./100 mL

200

Coliforms Fecal

No./100 mL

100

Metals

Arsenic Total 

µg/L

5

Arsenic Dissolved 

µg/L

No Objective

Barium Total

µg/L

1000

Beryllium Total

µg/L

100

Boron Total  

µg/L

500

Cadmium Total 

µg/L

Calculated^b

Chromium Total 

µg/L

50

Cobalt Total  

µg/L

50

Copper Total  

µg/L

Calculated^b

Iron Dissolved 

µg/L

300

Lead Total  

µg/L

Calculated^b

Lithium Total 

µg/L

2500

Manganese Dissolved  

µg/L

50

Mercury Total

µg/L

0.026

Molybdenum Total  

µg/L

10

Nickel Dissolved 

µg/L

Calculated^b

Selenium Total  

µg/L

1

Silver Total  

µg/L

0.1

Thallium Total

µg/L

0.8

Uranium Total 

µg/L

10

Vanadium Total  

µg/L

100

Zinc Total 

µg/L

30

Pesticides

Acid Herbicides

2,4-D

µg/L

4

Bromoxynil

µg/L

0.33

Dicamba

µg/L

0.006

MCPA

µg/L

0.025

Picloram

µg/L

29

Organochlorine Pesticides in Water

Endosulfan

µg/L

0.003

Hexachlorocyclohexane (gamma-HCH) (Lindane)

µg/L

0.01

Hexachlorobenzene 

µg/L

0.52

Pentachlorophenol (PCP)

µg/L

0.5

Neutral Herbicides in Water

Atrazine

µg/L

1.8

Diclofopmethyl (Hoegrass)

µg/L

0.18

Metolachlor

µg/L

7.8

Metribuzin

µg/L

0.5

Simazine

µg/L

0.5

Triallate

µg/L

0.24

Trifluralin

µg/L

0.2

Other

Glyphosate

µg/L

Report Detections

Fish Tissue

Mercury in fish (muscle tissue)

µg/kg

200

Arsenic in fish (muscle tissue)

µg/kg

3500

Lead in fish (muscle tissue)

µg/kg

500

DDT (total) in fish (muscle tissue)

µg/kg

5000

Aquatic Biota Consumption 

PCB in fish (muscle tissue) mammalian

µg TEQ/kg diet wet weight

0.00079

PCB in fish (muscle tissue) avian

µg TEQ/kg diet wet weight

0.0024

DDT (total) in fish (muscle tissue)

µg/kg diet wet weight

14

Toxaphene in fish (muscle tissue)

µg/kg diet wet weight

6.3

Radioactive

Cesium-137

Bq/L

10

Iodine-131

Bq/L

6

Lead-210

Bq/L

0.2

Radium-226

Bq/L

0.5

Strontium-90

Bq/L

5

Tritium

Bq/L

7000