Beaver River  Reach: Beaver Crossing to the Border

  Chemical, Physical or Biological Variable

Unit

   Acceptable Limit or Limits

  Nutrients

Open

Closed

  Total Phosphorus

mg/L

0.171

0.127

  Total Dissolved Phosphorus

mg/L

0.043

0.042

0.060

0.060

  Total Nitrogen

mg/L

1.140

1.862

  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

0.19

  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

Under Review

  Sodium Adsorption Ratio

rel units

3

  Total Suspended Solids

mg/L

3.0-48.8

  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

Under Review

  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