|
| |
WATER QUALITY PRESSURES (INDICATORS) FOR THE JUKSKEI CATCHMENT (1995)
|
|
|
RANGE |
VARIABLE |
UNITS |
IDEAL |
ACCEPTABLE |
TOLERABLE |
UNACCEPTABLE |
| Electrical
conductivity |
mS/m |
<70 |
70
- 150 |
150
- 295 |
>295 |
pH |
pH
units at 25 °C |
6.5 - 8.5 |
5.0
- 6.5;
8,5 - 9,0 |
4.9
- 5.0;
9,0 - 10 |
<4
; >10 |
| Turbidity* |
NTU |
<16 |
6 -
25 |
25
- 35 |
|
| Odour |
Category |
1 |
2 |
3 |
4 |
| Colour |
Category |
1 |
2 |
3 |
4 |
| Litter |
Category |
1 |
2 |
3 |
4 |
| Sodium Absorption |
- |
<3.0 |
3.0
- 5.0 |
5.0
- 10 |
>10 |
| Nitrate / Nitrite |
mg/_
N |
<6 |
6 -
10 |
10
- 20 |
>20 |
| Nitrite |
mg/_
N |
<0.03 |
0.03
- 0.06 |
0.06
- 0.15 |
>0.15 |
| Ammonia** |
mg/_
N |
<0.18 |
0.18
- 0.40 |
0.40
- 2.6 |
>2.6 |
| Fluoride |
mg/_
N |
<1.0 |
1.0
- 1.5 |
1.5
- 3.5 |
>3.5 |
| Sulphate |
mg/_
N |
<200 |
200
- 300 |
300
- 500 |
>500 |
| Chlorine |
_g/_
N |
<0.2 |
0.2
- 0.35 |
0.35
- 5.0 |
>5.0 |
| E.coli |
CFU
/ 100m_ |
<126 |
126
- 200 |
200
- 400 |
>400 |
| Faecal Coliforms |
CFU
/ 100m_ |
<150 |
150
- 600 |
600
- 2000 |
>2000 |
|
|
