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)


July 25


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

  • Laboratory
  • State and EPA regional DMR-QA coordinators

August 8


Forward PT Provider-graded test results to the Permittee


August 22

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 3

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