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• U <br /> ® the assembly. Top of assembly shall not exceed 72 inches above finished <br /> grade. <br /> (3) Manufactured enclosures shall be equal to or the equivalent of"Hot Box". <br /> Enclosures shall be placed on a wire reinforced concrete pad a minimum of <br /> 4 inches thick and shall be removable. <br /> 6.4 TEMPORARY USE ASSEMBLIES <br /> A public fire hydrant used as a temporary water source shall be protected by an RPZA or <br /> air gap and metered by a flow meter, which shall be obtained from and installed by the <br /> Approving Authority. The consumer shall be charged a deposit and rental for the RPZA <br /> and meter and shall pay for water usage. The consumer shall notify the Approving <br /> Authority to disconnect the RPZA and meter and return it when no longer needed or at <br /> the end of one year, whichever is sooner or the deposit shall be forfeited if the RPZA or <br /> flowmeter is not returned. RPZAs and meters shall only be used at the site for which <br /> ' initially intended. <br /> 6.5 REPORTING REQUIREMENTS <br /> The consumer shall be responsible for properly filing reports with the Approving <br /> Authority for each required backflow prevention assembly. DDCVA and DRPZA are <br /> composed of two unique assemblies, each requiring report submission. In addition to the <br /> 4W administrative reports, any failure, removal, modification or replacement of an assembly or <br /> suspected backflow shall be reported immediately to the Approving Authority. <br /> Performance tests, replacement, repair and maintenance reports shall be filed within 14 <br /> calendar days. <br /> 6.6 RECORDS <br /> The consumer shall keep records for each assembly. Installation drawings, installer, test <br /> reports, manufacturer, model, serial number, date installed, copy of current permit, <br /> schedule of preventive maintenance, test reports and technical data are the minimum <br /> record requirements. These records shall be maintained for a period not less than five <br /> years. <br /> 6.7 PROTECTION OF ASSEMBLIES <br /> No person shall maliciously, willfully, or negligently break, damage, destroy, deface or <br /> itamper with any structure, appurtenance or equipment which is a part of the backflow <br /> prevention assembly or it's protective housing. <br /> No person shall cover a backflow prevention assembly vault with earth or pavement, or <br /> I (W <br /> 22 <br />