Chemical Data for the THORNTON RIVER at Route 628,

Monumental Mills (C-18)

 

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

63.5

48

6.5

12.6

12.4

<100

<0.04

<0.01

<0.1 ppm

1.5 mg/L

<3 mg/L

<3 mg/L

<3 mg/L

Winter 02

54.5

40

6.5

13.7

13.8

<100

0.3

<0.01

0.2 ppm

0.3 mg/L

<3 mg/L

<3 mg/L

<3 mg/L

Spring 02

97

76

7.5

9.4

9.7

<100

0.06

<0.01

<0.1 ppm

0.8 mg/L

<3 mg/L

<3 mg/L

<3 mg/L

Summer 02 75 74 7.0 7.15 7.25 n/d n/d n/d 0.1 ppm 0.8 mg/L n/d n/d

<3 mg/L

Winter 03 42 36 6.5 12.7 13.1 < 100 < 0.01 0.5 < 0.1 ppm 0.2 mg/l < 3 mg/l < 3 mg/l

< 3 mg/l

Return to C-18.     n/d = No data     DO = Dissolved Oxygen     ppm = Parts per million     mg/L = milligrams per liter