| Changes Observed | % of respondents who observed such changes in specific parts | |
| Narrowing of River | 46% | Midstream due to aquatic wastes plus sedimentation |
| Widening of River | 33% | River and River mouth |
| High Turbidity | 21% | River mouth, due to aquatic wastes |
| Local Water District | For laundry and bathing 100% | River and Coastal Areas |
| Deep well handpump | Drinking sources 100% | River and Coastal Areas |