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October 1, 2024 <br /> Page 2 of 4 <br /> Q; by were Rules 6.1.9.3 and 6.1.10.3 revised to remove calibrated release <br /> tables and gaging as acceptable methods of measuring releases for reservoirs? <br /> A: Calibrated release tables and gaging based on a rated section can still be <br /> acceptable methods of measuring releases for reservoirs under these rules. Both of <br /> these methods would be considered Alternative Measurement Methods subject to <br /> approval under Rule 7.4. These two rules were revised to avoid implying that <br /> calibrated release tables or gaging would be the only acceptable Alternative <br /> Measurement Methods for measuring releases, and also to avoid implying that <br /> these methods are not Alternative Measurement Methods. <br /> Q: Do the Rules require down-ditch water users to measure their headgates for <br /> taking water out of a ditch? <br /> A: No. The Rules require measurement of Diversion Structures, which refers to <br /> Diverting water from its natural water course, not deliveries from a ditch. <br /> However, ponds and reservoirs that are not exempted from the Rules as head <br /> stabilization ponds might still be required to be measured. And ditch companies or <br /> other water supply entities might have their own measurement requirements for <br /> individual water users on a ditch. <br /> Q: Rule 6.1.1 mentions "defining elements of a Diversion Structure's Water <br /> Right(s)." What are "defining elements"? <br /> A: As used in this Rule, "defining elements" refers to whether the Water Right can <br /> be described in terms of rate of diversion (typically cubic feet per second (cfs)) or <br /> volume (typically acre feet). For example, a direct flow Water Right will typically <br /> be measured in terms of Flow Rate, and a storage Water Right will typically be <br /> measured in terms of volume. <br /> Q: How am I supposed to comply with the measurement method functional <br /> standards under Rule 6.1? <br /> A: To comply with the Rules, a Measurement Method must be "designed to" meet <br /> the functional standards under Rules 6.1.2, 6.1.3, or 6.1.4. A Measurement Method <br /> must also be installed property (Rule 6.1.6) and be maintained (Rule 6.1.7). If a <br /> Measuring Device is installed property and maintained as described in Rule 6.4.1, <br /> the Division Engineer will presume that it meets the functional standards described <br /> in Rules 6.1.2, 6.1.3, or 6.1.4. The Division Engineer may still rate or Verify any <br /> Measurement Method if appropriate (see below question and answer). <br /> Q- Rule 6.4.2 was revised to say that the Division Engineer may Verify or rate <br /> any Measuring Device at any time. Who is responsible for Verification under this <br /> Rule? <br /> A: DWR is responsible for Verification under Rule 6.4.2. If DWR believes <br /> Verification of a Measuring Device is appropriate, someone from DWR meeting the <br /> definition of "Qualified Tester" (likely a hydrographer) will conduct the <br /> Verification at no cost to the water user. Water users are still solely responsible <br /> for the proper installation and maintenance of Measuring Devices and for <br /> Verification of Alternative Measurement Methods under Rule 6.4.4, which <br /> Verification must be conducted by a Qualified Tester. <br />