| Items Usage | pH | EC (μS/cm) | DO (mg/L) | ORP (mV) | |||||||||
| Ave. | Min. | Max. | Ave. | Min. | Max. | Ave. | Min. | Max. | Ave. | Min. | Max. | ||
| Jun. (n = 206) | Agricultural | 7.1 | 6.5 | 8.6 | 201 | 69 | 697 | 7.1 | 3.4 | 10 | 170 | 0 | 235 |
| Living | 6.3 | 6.3 | 8.8 | 68 | 68 | 433 | 2.2 | 2.2 | 10 | 90 | 90 | 271 | |
| Drinking | 6.9 | 6.1 | 7.9 | 182 | 51 | 959 | 7.2 | 2.3 | 10.9 | 183.5 | 88 | 301 | |
| Ave. | 7.0 | 6.1 | 8.8 | 181 | 51 | 959 | 7.2 | 2.2 | 10.9 | 181.6 | 0 | 301 | |
| Jul. (n = 33) | Agricultural | 7.0 | 6.5 | 7.9 | 199 | 78 | 446 | 5.3 | 4.7 | 6 | 152.1 | 57 | 233 |
| Living | 7.3 | 6.5 | 8.3 | 178 | 75 | 354 | 5.9 | 4.7 | 11 | 176.5 | 30 | 258 | |
| Drinking | 7.3 | 6.4 | 8.2 | 164 | 76 | 447 | 5.4 | 4.6 | 6.3 | 165.2 | 45 | 224 | |
| Ave. | 7.2 | 6.4 | 8.3 | 180 | 75 | 447 | 5.6 | 4.6 | 11 | 166.8 | 30 | 258 | |
| Sep. (n = 194) | Agricultural | 7.0 | 6.2 | 8.4 | 199 | 56 | 1033 | 3.8 | 0.6 | 5.4 | 180.9 | 58 | 232 |
| Living | 6.9 | 6.1 | 7.6 | 157 | 24 | 455 | 3.8 | 0.3 | 6.1 | 188.6 | 69 | 270 | |
| Drinking | 6.9 | 6.3 | 7.7 | 153 | 58 | 334 | 3.6 | 0.5 | 5.8 | 184 | 54 | 233 | |
| Industrial | 7.1 | 6.9 | 7.2 | 193 | 151 | 241 | 3.9 | 3.5 | 4.5 | 224.7 | 210 | 235 | |
| Ave. | 6.9 | 6.1 | 8.4 | 164 | 24 | 1033 | 3.8 | 0.3 | 6.1 | 186.2 | 54 | 270 | |
| Oct. (n = 33) | Agricultural | 6.8 | 6.6 | 7 | 338 | 203 | 474 | 4.7 | 4.3 | 5.1 | 223.8 | 204 | 244 |
| Living | 7.2 | 6.8 | 7.8 | 203 | 112 | 511 | 4.9 | 3.1 | 5.3 | 206 | 163 | 245 | |
| Drinking | 7.2 | 6.8 | 7.6 | 147 | 79 | 252 | 4.9 | 4.6 | 5.3 | 213.1 | 146 | 243 | |
| Ave. | 7.2 | 6.6 | 7.8 | 194 | 79 | 511 | 4.9 | 3.1 | 5.3 | 211.4 | 146 | 245 | |
| Nov. (n = 17) | Agricultural | 7.7 | 7.1 | 8.4 | 1053 | 220 | 1885 | 5.3 | 3.2 | 7.3 | 26.5 | −19 | 72 |
| Living | 7.7 | 6.2 | 8.5 | 242 | 82 | 383 | 6.5 | 4.9 | 7.9 | 192.1 | 91 | 289 | |
| Drinking | 7.8 | 7.6 | 8 | 219 | 125 | 357 | 6.1 | 3.6 | 7.5 | 300 | 163 | 460 | |
| Ave. | 7.7 | 6.2 | 8.5 | 329 | 82 | 1885 | 6.2 | 3.2 | 7.9 | 210.7 | −19 | 460 | |
| Usage (n = 483) | Agricultural | 7.1 | 6.2 | 8.6 | 226 | 56 | 1885 | 5.4 | 0.6 | 10 | 171.8 | −19 | 244 |
| Living | 7.0 | 6.1 | 8.8 | 172 | 24 | 511 | 5.6 | 0.3 | 11 | 187.3 | 30 | 289 | |
| Drinking | 7.0 | 6.1 | 8.2 | 168 | 51 | 959 | 5.5 | 0.5 | 10.9 | 189.1 | 45 | 460 | |
| Industrial | 7.1 | 6.9 | 7.2 | 193 | 151 | 241 | 3.9 | 3.5 | 4.5 | 224.7 | 210 | 235 | |
| Ave. | 7.0 | 6.1 | 8.8 | 180 | 24 | 1885 | 5.5 | 0.3 | 11 | 185.5 | −19 | 460 | |
| Seasonal (483) | Pre-monsoon | 7.0 | 6.1 | 8.8 | 181 | 51 | 959 | 7.2 | 2.2 | 10.9 | 181.6 | 0.0 | 301 |
| Post-monsoon | 7.0 | 6.1 | 8.5 | 179 | 24 | 1885 | 43 | 0.3 | 11.0 | 1884 | −19 | 460 | |