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Source water assessment and nonpoint sources of acutely toxic contaminants: A review of research related to survival and transport of Cryptosporidium parvum
Author(s) -
Walker Mark J.,
Montemagno Carlo D.,
Jenkins Michael B.
Publication year - 1998
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/98wr02286
Subject(s) - nonpoint source pollution , cryptosporidium parvum , context (archaeology) , contamination , cryptosporidium , environmental science , water supply , water source , water quality , environmental engineering , environmental planning , biology , water resource management , ecology , microbiology and biotechnology , paleontology , feces
Amendments to the Safe Drinking Water Act (PL‐930123) in 1996 required that public water supply managers identify potential sources of contamination within contributing areas. Nonpoint sources of acutely toxic microbial contaminants, such as Cryptosporidium parvum , challenge current approaches to source identification and management as a first step toward developing management plans for public water supply protection. Little may be known about survival and transport in the field environment, prescribed practices may not be designed to manage such substances, and infective stages may be present in vast numbers and may resist water treatment and disinfection processes. This review summarizes research related to survival and transport of C . parvum oocysts, as an example of an acutely toxic contaminant with nonpoint sources in animal agriculture. It discusses ∥1) significance of infected domesticated animals as potential sources of C. parvum , (2) laboratory and field studies of survival and transport, and (3) approaches to source control in the context of public health protection.