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<br /> prior to lot or unit sales within the project served by the system , or upon completion of
<br /> construction of the system , whichever occurs first. For those systems which are proposed
<br /> to be maintained by county or municipal entities , final operation and maintenance
<br /> documents must be received by the District when maintenance and operation of the
<br /> system is accepted by the local governmental entity. Failure to submit the appropriate final
<br /> documents referenced in this paragraph will result in the permittee remaining liable for
<br /> carrying out maintenance and operation of the permitted system .
<br /> 9 . Each phase or independent portion of the permitted system must be completed in
<br /> accordance with the permitted plans and permit conditions prior to the initiation of the
<br /> permitted use of site infrastructure located within the area served by the portion or phase
<br /> of the system . Each phase or independent portion of the system must be completed in
<br /> accordance with the permitted plans and permit conditions prior to transfer of responsibility
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<br /> for operation and maintenance of that phase or portion of the system to local government
<br /> or other responsible entity.
<br /> 10 . Within 30 days after completion of construction of the permitted system , or independent
<br /> portion of the system , the permittee shall submit a written statement of completion and
<br /> certification by a registered professional engineer or other appropriate individual as
<br /> authorized by law , utilizing As Built Certification Form 40C- 1 . 181 ( 13) or 40C- 1 . 181 ( 14)
<br /> supplied with this permit. When the completed system differs substantially from the
<br /> permitted plans , any substantial deviations shall be noted and explained and two copies of
<br /> as- built drawings submitted to the District . Submittal of the completed form shall serve to
<br /> notify the District that the system is ready for inspection . The statement of completion and
<br /> certification shall be based on on-site observation of construction (conducted by the
<br /> registered professional engineer , or other appropriate individual as authorized by law, or
<br /> under his or her direct supervision) or review of as- built drawings for the purpose of
<br /> determining if the work was completed in compliance with approved plans and
<br /> specifications . As- built drawings shall be the permitted drawings revised to reflect any
<br /> changes made during construction . Both the original and any revised specifications must
<br /> be clearly shown . The plans must be clearly labeled as "as-built" or " record " drawing . All
<br /> surveyed dimensions and elevations shall be certified by a registered surveyor . The
<br /> following information , at a minimum , shall be verified on the as- built drawings :
<br /> 1 . Dimensions and elevations of all discharge structures including all weirs , slots ,
<br /> IF
<br /> gates , pumps , pipes , and oil and grease skimmers ;
<br /> 2 . Locations , dimensions , and elevations of all filter , exfiltration , or underdrain
<br /> systems including cleanouts , pipes , connections to control structures , and points
<br /> IF I of discharge to the receiving waters ;
<br /> 3 . Dimensions , elevations , contours , or cross-sections of all treatment storage areas
<br /> IF I
<br /> sufficient to determine state -storage relationships of the storage area and the
<br /> permanent pool depth and volume below the control elevation for normally wet
<br /> systems , when appropriate ;
<br /> 4. Dimensions , elevations , contours , final grades , or cross-sections of the system to
<br /> IF
<br /> determine flow directions and conveyance of runoff to the treatment system ;
<br /> 5 . Dimensions , elevations , contours , final grades , or cross-sections of all
<br /> conveyance systems utilized to convey off-site runoff around the system ;
<br /> 6 . Existing water elevation (s) and the date determined ; and Elevation and location of
<br /> benchmark(s) for the survey.
<br /> 11 . The operation phase of this permit shall not become effective until the permittee has
<br /> submitted the appropriate As- Built Certification Form , the District determines the system to
<br /> IF
<br /> be in compliance with the permitted plans , and the entity approved by the District in
<br /> accordance with subsections 7 . 1 . 1 through 7 . 1 . 4 of the Applicant's Handbook :
<br /> Management and Storage of Surface Waters , accepts responsibility for operation and
<br /> IF maintenance of the system . The permit may not be transferred to such an approved
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