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Chemical Data for the RAPPAHANNOCK RIVER at Route 621 (C-12)

Cycle

Air Temp (°F)

Water Temp (°F)

DO Test 1

DO Test 2

Fecal Coliform

Nitrate (mg/L)

Nitrite (mg/L)

Total Phosphorus

Total Kjeldahl Nitrogen

Total Suspended Solids

Volatile Suspended Solids

Fixed Suspended Solids

Fall 01

46.5

7.0

12.0

11.4

<100

0.6

<0.01

<0.1 ppm

0.2 mg/L

<3 mg/L

Winter 02

73.5

7.0

12.0

<100

0.93

0.01

0.1 ppm

0.3 mg/L

<3 mg/L

Spring 02

64.5

53.5

7.0

9.0

700

0.41

0.01

<0.1 ppm

0.5 mg/L

23 mg/L

4 mg/L

19 mg/L

Winter 03

66.2

51.8

7.0

9.8

9.6

< 100

< 0.01

0.6

0.1 ppm

0.4 mg/l

26 mg/l

< 3 mg/l

24 mg/l

Spring 03

n/d

100

< 0.01

0.54

0.1 ppm

0.5 mg/l

11 mg/l

3 mg/l

8 mg/l

Return to C-12. n/d = No data DO = Dissolved oxygen ppm = parts per million mg/L = milligrams per liter