Skip common site navigation and headers
United States Environmental Protection Agency
Ground Water & Drinking Water
Begin Hierarchical Links EPA Home > Water > Ground Water & Drinking Water > Drinking Water Contaminants > Unregulated Drinking Water Contaminants End Hierarchical Links

 

Unregulated Drinking Water Contaminants

Microbiological Contaminants

NAME  
MORE INFORMATION
Acanthamoeba (guidance expected for contact lens wearers)  
Adenoviruses  
Aeromonas hydrophila  
Caliciviruses  
Coxsackieviruses  
Cyanobacteria (blue-green algae), other freshwater algae, and their toxins  
Echoviruses  
Helicobacter pylori  
Microsporidia (Enterocytozoon & Septata)  
Mycobacterium avium intracellulare (MAC)  

Chemical Contaminants

NAME CASRN #1  
MORE INFORMATION
1,1,2,2-tetrachloroethane 79-34-5  
1,2,4-trimethylbenzene 95-63-6  
1,1-dichloroethane 75-34-3  
1,1-dichloropropene 563-58-6  
1,2-diphenylhydrazine 122-66-7  
1,3-dichloropropane........................................ 142-28-9  
1,3-Dichloropropene 542-75-6  
2,4,6-trichlorophenol 88-06-2  
2,2-dichloropropane 594-20-7  
2,4-dichlorophenol 120-83-2  
2,4-dinitrophenol 51-28-5  
2,4-dinitrotoluene 121-14-2  
2,6-dinitrotoluene 606-20-2  
2-methyl-Phenol (o-cresol) 95-48-7  
Acetochlor 34256-82-1  
Alachlor ESA & other acetanilide pesticide degradation products N/A  
Aldrin 309-00-2  
Aluminum 7429-90-5  
Boron 7440-42-8  
Bromobenzene 108-86-1  
DCPA mono-acid degradate 887-54-7  
DCPA di-acid degradate 2136-79-0  
DDE. 72-55-9  
Diazinon 333-41-5  
Dieldrin 60-57-1  
Disulfoton 298-04-4  
Diuron 330-54-1  
EPTC (s-ethyl-dipropylthiocarbamate) 759-94-4  
Fonofos 944-22-9  
Hexachlorobutadiene 87-68-3  
p-Isopropyltoluene (p-cymene) 99-87-6  
Linuron 330-55-2  
Manganese 7439-96-5  
Methyl bromide 74-83-9  
Methyl-t-butyl ether (MTBE) 1634-04-4  
Metolachlor 51218-45-2  
Metribuzin 21087-64-9  
Molinate 2212-67-1  
Naphthalene 91-20-3  
Nitrobenzene 98-95-3  
Organotins N/A  
Perchlorate N/A  
Prometon 1610-18-0  
RDX 121-82-4  
Sodium 7440-23-5  
Sulfate 14808-79-8  
Terbacil 5902-51-2  
Terbufos 13071-79-9  
Triazines & degradation products of triazines
(including, but not limited to Cyanazine 21725-46-2, and atrazine-desethyl 6190-65-4)
VARIOUS  
Vanadium 7440-62-2  
NOTES

1 Chemical Abstract Service Registration Number (CASRN#) - CAS Registry Numbers are used in reference works, databases, and regulatory compliance documents by many organizations around the world to identify substances with a standardized name.

 

 

Safewater Home | About Our Office | Publications | Calendar | Links | Office of Water | En Español

 
Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us