Table 1.
Average values of chemical and physical water quality characteristics of treated water of supplies CA-1, CA-2, and CA-3a
| Quality characteristic | Value for: |
|||
|---|---|---|---|---|
| Treated water CA-1 | Treated water CA-2a | Treated water CA-2b | Treated water CA-3 | |
| Temp (°C) | 30 | 28 | 31.6 | 28.7 |
| pH | 9.3 | 8.2 | 8.3 | 8.5 |
| Conductivity (μS cm−1) | 25 | 132 | 125 | 420 |
| Total hardness (CaCO3 mg liter−1) | 9.9 | 48.2 | 42.2 | 66.0 |
| Turbidity (NTU)b | 0.16 | 0.20 | 0.30 | 0.26 |
| Cl concn (mg liter−1) | 0.6 | 6.7 | 10.2 | 74 |
| Cu concn (mg liter−1) | 0.01 | 5 | 15 | 0.01 |
| Fe concn (mg liter−1) | 0.01 | 0.01 | 0.01 | 0.04 |
| NPOCc concn (mg C liter−1) | <0.05 | <0.05 | <0.05 | <0.05 |
a
Average values, based on routine monitoring over a period of 1 year.
b
NTU, nephelometric turbidity units.
c
NPOC, nonpurgeable organic carbon.