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There is no central government database that allows officials to monitor water tests by local systems.

Uncontrolled access to data, with no audit trail of activity and no oversight would be going too far. This applies to both commercial and government use of data about people.

Do not seek for information of which you cannot make use.

The Internet is not kind to established institutions.

You can have data without information, but you cannot have information without data.

Citizens' rights cannot be protected if their digital activities are governed and policed by opaque and publicly unaccountable corporate mechanisms.

History provides no precise guidelines.

It is unclear exactly how many law enforcement agencies are currently using this capability, but it is reasonable to say that while resource limitations used to discourage the government from tracking you without a good reason, these constraints have largely disappeared.