Sewage Management Fluoride Exposure Contaminants Contaminants in Drinking Water PFAS Contamination Contamination Risks E. coli Contamination Bacterial Contaminants E. Coli Contamination Arsenic Exposure Chemical Contaminants Wastewater Management Drought Effects Bottled Water Pesticide Exposure PFAS Chemicals Sewage Contaminants Pharmaceutical Contaminants Water Supply Sewage Contamination Fluoride Effects Wastewater Safety Sewer Systems Fluoride Salinity Effects Disinfection Challenges Debris Cleanup Toxic Algae Blooms Pollution Indicators Lead Contamination Heavy Metal Contamination Contaminated Water Risks Impact on Athletes Community Health Bacteria Levels Pollution