| Water quality | Quarry pits | Neighboring shallow wells | Statistics | National Standards ( | ||||||
| Parameter | Halai | Stirling | Ntake | Seyani | SW1 | SW2 | Min | Max | Mean | |
| pH | 6.18 | 5.74 | 4.87 | 5.65 | 5.28 | 5.09 | 4.9 | 6.18 | 5.5 | 6.0 - 8.0 |
| EC | 313 | 207.1 | 171.3 | 664 | 44.9 | 54.7 | 44.9 | 664 | 242.5 | 2500 |
| Turbidity (NTU) | 6 | 6 | 25 | 12 | 207 | 12 | 6.0 | 207 | 44.7 | 300 |
| Nitrates (mg/l) | 199.2 | 188 | 148.4 | 855.6 | 0 | 31.6 | 0.0 | 855.6 | 237.1 | 20 |
| Nitrites (mg/l) | 0.38 | 1.27 | 0.068 | 1.27 | 0.18 | 0.01 | 0.0 | 1.27 | 0.5 | 2 |
| Iron (µg/1) | 0.1 | 0.07 | 0.13 | 0.09 | 4.5 | 0.35 | 0.1 | 4.5 | 0.9 | 10 |
| TSS (mg/l) | 6 | 16 | 14 | 10.8 | 112 | 12 | 6.0 | 112 | 28.5 | 100 |
| TDS (mg/l) | 360 | 236 | 206 | 872 | 120 | 120 | 120.0 | 872 | 319.0 | 1200 |
| Lead (mg/l) | 0.02 | 0 | 0 | 0.0.3 | 0 | 0 | 0.0 | 0.02 | 0.0 | 0.1 |
| Chromium (mg/l) | 0.32 | 0.16 | 0.08 | 1.22 | 0.01 | 0 | 0.0 | 1.22 | 0.3 | 0.05 |
| Zinc (mg/l) | 0.39 | 0.11 | 0.03 | 0.64 | 0.01 | 0 | 0.0 | 0.64 | 0.2 | 5 |