1. The water through by community
2. The water through by stockyard
3. The water through by factory
4. The water through by the field where using a lot of chemical
5. Around the pool or canal area was be the hospital or factory before (5 years)
6. Around the pool or canal area was be the stockyard before (2 years)
7. The water in pool or canal has possible to dirt by chemical which using in field or bear by field
8. The water has found for chemical test result
9. The water has found for metal test result
10. The water has found for CG
11. The water possible can not contact directly to product