| File Name | Size | Date | |
 | Diagnose_Problems_With_Water_2004.pdf | 5140 KB | 8/30/2004 |
| Drinking_Water_Contaminants_US_EPA_2009.pdf | 997 KB | 9/14/2009 |
| DRWH_Water_Quality_A_Literature_Review_2001.pdf | 766 KB | 6/18/2006 |
| Health_Related_Inorganic_Contaminants_In_Drinking_Water_2007.pdf | 87 KB | 12/13/2009 |
| Microscopic_Size_Chart_2007+.pdf | 66 KB | 12/30/2009 |