7.5 > DO>7
IDO
¼ 90
!7.5
IDO
¼ 100
Conductivity (lS/cm)
>12,000
ICOND
¼ 0
12,000
! COND
! 8000 ICOND
¼ 10
8000 > COND
! 5000
ICOND
¼ 20
5000 > COND
! 3000
ICOND
¼ 30
3000 > COND
! 2500
ICOND
¼ 40
2500 > COND
! 2000
ICOND
¼ 50
2000 > COND
! 1500
ICOND
¼ 60
1500 > COND
! 1250
ICOND
¼ 70
1250 > COND
! 1000
ICOND
¼ 80
1000 > COND
! 750
ICOND
¼ 90
<750
ICOND
¼ 100
Turbidity (NTU)
>100
ITURB
¼ 0
100
! TURB
! 80
ITURB
¼ 10
80 > TURB
! 60
ITURB
¼ 20
60 > TURB
! 40
ITURB
¼ 30
40 > TURB
! 30
ITURB
¼ 40
30 > TURB
! 25
ITURB
¼ 50
25 > TURB
! 20
ITURB
¼ 60
20 > TURB
! 15
ITURB
¼ 70
15 > TURB
! 10
ITURB
¼ 80
10 > TURB
! 5
ITURB
¼ 90
<5
ITURB
¼ 100
(continued)
3 Surface Water Quality and Analysis
83