| Station/Month-wise Classification of River Water Quality under National River Conservation Directorate Programme at K.R. Nagar, S.R. Patna and Nanjangud Town Stretches of Cauvery River in Karnataka (2000-01) | ||||||||||||
| Station | Apr. 2000 | May. 2000 | Jun. 2000 | Jul. 2000 | Aug. 2000 | Sept. 2000 | Oct. 2000 | Nov. 2000 | Dec. 2000 | Jan. 2001 | Feb. 2001 | Mar. 2001 |
| Downstream of the newly constructed aqueduct 30 meters from railway line | Dry | Dry | C | C | B | C | C | B | A | B | Dry | Dry |
| 20 meters downstream to the culvert 500 meters from Ranganatha Rice Mill | Dry | Dry | C | C | B | C | B | A | A | B | Dry | Dry |
| 10 meters upstream of the pumping station near the Arkeshwara Gudi | B | C | C | C | B | B | B | A | A | A | B | B |
| Mid-stream at 50 meters downstream to the bridge leading towards Hassan | C | D | A | C | B | B | B | B | A | A | B | A |
| At mid-stream below the railway bridge leading towards Bangalore | C | B | A | C | B | B | B | A | A | A | B | C |
| About 150 meters from the upstream of Wellesly Bridge | B | D | B | C | B | B | B | A | A | B | B | E |
| Downstream of sewage disposal point about 1.5 km from Bangalore- Mysore Road along the road towards Nimishambha TembleB | ||||||||||||
| After the confluence of two branches about 100 meters from Sangam | ||||||||||||
| Upstream of the jack-well at KIADB near Kullahlli | ||||||||||||
| Near bathing ghat on the right bank | ||||||||||||
| Near the pumphouse of water supply to the Gemini Distilleries | ||||||||||||
| Downstream of the culvert across the Ullal Channel near Gulur | ||||||||||||
