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6.4.2 The Division Engineer may at any time require that a Measuring Device or <br /> Alternative Measurement Method be rated or verified to be operating properly. <br /> Such verification shall be conducted by a Qualified Tester. <br /> 6.4.3 Alternative Measurement Methods shall be rated or verified every four years <br /> beginning on the date the Alternative Measurement Method is approved by the <br /> Division Engineer. Such rating or verification shall be conducted by a Qualified <br /> Tester. <br /> 6.4.4 All flow measuring equipment, such as a current meter or acoustic velocity meter, <br /> used by a Qualified Tester to certify the accuracy and working condition of <br /> Measuring Devices and Alternative Measurement Methods in the field must be <br /> calibrated every two years to be accurate within plus or minus two percent (2%). <br /> Calibration and certification of accuracy of such testing equipment must be <br /> accomplished by a facility qualified and equipped to certify a test meter as <br /> accurate in accordance with this Rule using National Institute of Standards and <br /> Technology (NIST) traceable standards. <br /> 6.4.5 A report of the verification testing shall be provided to the Division Engineer on a <br /> form developed by the State Engineer. <br /> Rule 7. Approval of Measurement Method <br /> To comply with these Rules, each Measurement Method must be approved by the Water <br /> Commissioner or Division Engineer. <br /> 7.1 To confirm approval of the use of a pre-existing Measurement Method that was <br /> installed prior to the effective date of these Rules, the Water User should contact <br /> the Water Commissioner or Division Engineer. The Water Commissioner or <br /> Division Engineer will confion with notice in writing, including via email, that <br /> the pre-existing Measurement Method is approved or denied. <br /> 7.2 For the purpose of obtaining approval of the use of a Measurement Method, and <br /> in compliance with the timelines described in the phase in provisions of Rule 17, <br /> the Water User seeking to use a newly installed, reinstalled, or changed <br /> Measurement Method shall provide Notice to the Division Engineer or the <br /> Division Engineer's delegate that includes the following information: (1) Person's <br /> name, (2) Diversion Structure or Other Structure name, (3) decree case number(if <br /> applicable), (4) legal description (PLSS quarter-quarter, section, township and <br /> range or UTM coordinates) of the Diversion or Other Structure, (5) Measuring <br /> Device installed, (6) rating table for Measuring Device (if non-standard), and/or a <br /> stage-capacity table in the case of a Reservoir, and (7) the date of installation. <br /> 9 <br />