Checklist (pg. 25-32). The Checklist does not correspond to either the Table of Contents or the Guidebook numbering, which makes the Checklist difficult to follow.
Regarding meeting the April 1 deadline, the Guidebook notes that DWR may provide additional time to remedy a deficiency if the supplier is making substantial progress towards remedy. What does DWR expect “substantial progress” to include?
Isn't there a max the entities has to reimburse for the 3rd party plan development?
Do USBR Plan district have to include a Drought Plan?
Suppliers without websites or that are unable to post plans on their website likely lack the resources and the technological ability to comply with federal web accessibility requirements, so this seemingly small step could present a large hurdle for some water suppliers. Are there any other options or ways DWR can help with accessibility?
Section 3.D (pg. 63-65). Even though the legislation does not require a particular reporting timescale, the Guidebook language states several times that the annual water budget reporting requirement should be done on water year basis. This language should be consistent throughout.
Generally irrigation water suppliers supply water for the growing season which generally runs from March through October. The water year runs from October through September. Thus, using the water year breaks a crop growing season into two years and is not useful for evaluating irrigation water management. Our understanding is that an irrigation supplier can continue to report their water budget on an irrigation season basis as long as somewhere in the plan the water budget is also reported by water year. Is this correct?
Effective precipitation is often accounted as an outflow - is there any flexibility in reporting effective precipitation in the outflows table instead of the inflows table?
Along the same lines of saying "modeled" or "estimated" on the tables, some data will be confusing or inaccurately represented if forced to stand without explanation, so a space to explain or leave qualitative notes on data is essential to being able to provide the most accurate information. Can DWR change the tables to accommodate note sections, and make the tables available for download instead of just PDF?
Shouldn't one inflow be total precipitation? Precipitation is greater than effective precipitation. Deep percolation includes deep percolation from applied water and from precipitation. Precipitation that becomes deep percolation is not included in effective precipitation, so the water budget will not balance unless total precipitation is an inflow.
Often there are nuances with water balances that are not easily explained by the numbers alone. Where in the tables can this be noted?
The Guidebook includes several resources and considerations for the water suppliers’ climate change analysis. While the suppliers have discretion on how to conduct the climate change analysis, what are DWR’s expectations in terms of (1) length and depth of the analysis and (2) which resources and considerations the water suppliers should use and include?
In the Draft Guidebook (pg. 103-104), the four methods for calculating WUE are simplified from the full definitions given in the 2012 DWR WUE Report (titled “A Proposed Methodology for Quantifying the Efficiency of Agricultural Water Use”). All four methods are given as a fraction of “AW,” with no apparent definition for what AW entails.Please consider defining AW according to the 2012 DWR WUE Report (pg. 21-22), with greater clarity given for the various “scales” at which “AW” is defined (field scale, water supplier scale, basin scale, etc.).