Chemical Data for the THORNTON RIVER at Route 626,

Rock Mills (R-13)

 

Cycle

Air Temp (°F) 

Water Temp (°F) 

pH

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

52

46

6.5

12.2

11.8

<100

<0.04

<0.01

<0.1 ppm

0.2 mg/L

<3 mg/L

<3 mg/L

<3 mg/L

Winter 02

51

36.5

6.5

14.2

14.1

<100

0.36

<0.01

0.2 ppm

0.3 mg/L

<3 mg/L

<3 mg/L

<3 mg/L

Spring 02

86

68.5

7.8

10.0

10.0

<100

0.11

<0.01

<0.1 ppm

1.0 mg/L

3 mg/L

<3 mg/L

<3 mg/L

Winter 03 67 49 7.0 11.2 11.3 < 100 < 0.01 0.31 < 0.1 ppm 0.3 mg/l 4 mg/l < 3 mg/l

4 mg/l

Return to R-13.   DO = Dissolved Oxygen     ppm = parts per million     mg/L = milligrams per liter