The contractors listed in Table 5.2 are procured and monitored by the agencies responsible for compliance with specifications outlined in the QAPP. It is the responsibility of each agency to provide a copy of its QAPP to the contractor(s) and to convey any changes to the QAPP on behalf of the agency or contractor back to USBR QAO Victor Stokmanis or the GBP QA/QC Oversight Manager, John Fields, for incorporation into an updated QAPP.