scholarly journals Occurrence and Geochemistry of Lead-210 and Polonium-210 Radionuclides in Public-Drinking-Water Supplies from Principal Aquifers of the United States

2020 ◽  
Vol 54 (12) ◽  
pp. 7236-7249 ◽  
Author(s):  
Zoltan Szabo ◽  
Paul E. Stackelberg ◽  
Charles A. Cravotta
Keyword(s):  
United States ◽  
Drinking Water ◽  
The United States ◽  
Water Supplies ◽  
Public Drinking Water ◽  
Public Drinking ◽  
Lead 210

scholarly journals Review of perchlorate occurrence in large public drinking water systems in the United States of America

2018 ◽  
Vol 19 (3) ◽  
pp. 681-694
Author(s):  
Steven J. Luis ◽  
Elizabeth A. Miesner ◽  
Clarissa L. Enslin ◽  
Keith Heidecorn
Keyword(s):  
United States ◽  
Decision Making ◽  
Drinking Water ◽  
Environmental Protection Agency ◽  
The United States ◽  
Water Systems ◽  
Contaminant Monitoring ◽  
Public Drinking Water ◽  
Regulatory Bodies ◽  
Public Drinking

Abstract When deciding whether or not to regulate a chemical, regulatory bodies often evaluate the degree to which the public may be exposed by evaluating the chemical's occurrence in food and drinking water. As part of its decision-making process, the United States Environmental Protection Agency (USEPA) evaluated the occurrence of perchlorate in public drinking water by sampling public water systems (PWSs) as part of the first implementation of the Unregulated Contaminant Monitoring Rule (UCMR 1) between 2001 and 2005. The objective of this paper is to evaluate the current representativeness of the UCMR 1 dataset. To achieve this objective, publicly available sources were searched to obtain updated perchlorate data for the majority of large PWSs with perchlorate detections under UCMR 1. Comparison of the updated and UCMR 1 perchlorate datasets shows that the UCMR 1 dataset is no longer representative because the extent and degree of occurrence has decreased since implementation of UCMR 1. Given this finding, it seems appropriate for regulatory bodies engaged in decision-making processes over several years to periodically re-evaluate the conditions that prompted the regulatory effort, thereby ensuring that rules and regulations address actual conditions of concern.

scholarly journals A review of household drinking water intervention trials and an approach to the estimation of endemic waterborne gastroenteritis in the United States

2006 ◽  
Vol 4 (S2) ◽  
pp. 71-88 ◽  
Author(s):  
John M. Colford ◽  
Sharon Roy ◽  
Michael J. Beach ◽  
Allen Hightower ◽  
Susan E. Shaw ◽  
...  
Keyword(s):  
United States ◽  
Drinking Water ◽  
The United States ◽  
Water Systems ◽  
Epidemiologic Studies ◽  
Other Information ◽  
Public Drinking Water ◽  
Public Drinking ◽  
Intervention Trials ◽  
Drinking Water Systems

The incidence of acute gastrointestinal illness (AGI) attributable to public drinking water systems in the United States cannot be directly measured but must be estimated based on epidemiologic studies and other information. The randomized trial is one study design used to evaluate risks attributable to drinking water. In this paper, we review all published randomized trials of drinking water interventions in industrialized countries conducted among general immunocompetent populations. We then present an approach to estimating the incidence (number of cases) of AGI attributable annually to drinking water. To develop a national estimate, we integrate trial results with the estimated incidence of AGI using necessary assumptions about the estimated number of residents consuming different sources of drinking water and the relative quality of the water sources under different scenarios. Using this approach we estimate there to be 4.26–11.69 million cases of AGI annually attributable to public drinking water systems in the United States. We believe this preliminary estimate should be updated as new data become available.

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