Yes and no. A PWS can submit operational data (found in Monthly Operating Reports, or "MOR") to their primacy agency using CMDP. In addition, a PWS user may submit requests to change their profile data - a "change request" - (such as changes in water system name and administrative contact information) and to facilities (new facilities, new sampling point IDs, etc.). However, a PWS cannot submit laboratory samples and results for compliance purposes; only certified laboratories can.
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