NYC-WTC_000233682

NYC 9/11 Public Portal Document

response guidelines

6.3.4 Unusual Water Quality or Consumer Complaints

Unusual Water Quality

THREAT E\ ALVATIO^ STAGE Possible ________ Credible________ Confirmatory ■ • • Unusual water quality data. Baseline water quality data. • Results of site characterization at selected investigation sites. • Results of sample analysis. • Contaminant information. • Real time water quality data. • Previous threat warnings triggered • Results of site characterization f by water quality. at other investigation sites. • Operational information o coiTesponding to the time of • Contaminant information. • Input from primacy agency r the unusual water quality. • Reports of consumer complaints. and public health agency. m a t i Bl Bl • Is the unusual water quality • Do site characterization results • Were unusual contaminants significantly different from reveal signs of contamination? detected during analysis? Do i an established baseline? • Is this unusual data substantial they pose a risk to the public? • Could operational changes different from other water quality • Do site characterization results be the cause? episodes? reveal signs of contamination? • Could changes in source • Is the unusual data indicative of a • Is contamination indicated by a water quality be the cause? specific contaminant? “preponderance of evidence?’’ • Are there similar results at • Are the unusual water quality

Ii other monitoring locations? clustered in a specific area? • Are there any unusual consumer complaints in the area?

n • Notifications within utility. • Drinking water primacy agency. • Emergency response agencies.

■u • • State/local public health agency. Local law enforcement. • National Response Center. • Other state and federal • FBI. assistance providers.

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74 Interim Final - August 2004

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NYC-WTC_000233756