Have you ever observed any water pollution in your area? What measures would you suggest to control it?

(N/A) Water pollution occurs due to various human activities where pollutants enter water sources.
Toxic substances and heavy metals like $Fe, Al, Mn$ are released by industries. Sewage discharge and animal waste also contribute to water pollution. Water containing these substances is not suitable for drinking.
To control this,the following measures are suggested:
$1$. Industrial waste and factory effluents must be treated to remove pollutants and toxic substances before being discharged into water bodies.
$2$. The concentration of pollutants in water sources must be monitored regularly.
$3$. Use of compost fertilizers should be encouraged over synthetic ones.
$4$. Toxic chemicals must be prevented from leaching into groundwater.