2014 Deadlines


In-House and Contract Laboratories

PT Providers

March 21

DMR-QA Study 34 begins

Send Address Verification Form (inside cover of package) to your State Coordinator by email or postal mail to confirm receipt of DMR-QA Study 34 announcement.

Notify all laboratories of DMR-QA Study 34

ERA's DMR-QA study will begin shipping on March 21 .

DMR-QA Study 34 begins

Order test samples


July 11              

DMR-QA Study 34 ends

DMR-QA Study 34 ends.

Send ungraded Data Report to PT providers (include a list of all NPDES permits using your laboratory data)


August 1


Send PT Provider-graded test results, for each permit, listed by NPDES permit numbers, to:

  • Laboratory
  • State and EPA regional DMR-QA coordinators

August 15


Forward PT Provider-graded test results to the Permittee


August 29 

Forward one copy of the NPDES Permittee Data Report Form, and a copy of the Chemistry/Microbiology and WET Checklists for each laboratory used to the state DMR-QA coordinator.

Order retesting ampules for all "Not Acceptable" analyte test results.

Complete and send required corrective action letter as soon as possible to your Permittee.


October 10

Address any "Not Acceptable" data by submitting a completed and signed corrective action report to your state DMR-QA coordinator