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The sources of data are cited. <br />15. As you have seen from my published hydrographs I am a great believer in showing all your <br />data. I recommend in the future, show every hydrograph. I further recommend you do as I do and <br />fit a least squares curve to the data and note the resultant best fit decline rate. <br />Our contract scope calls for presenting a total of 40 hydrographs from the Denver Basin <br />bedrock aquifers. We have selected wells that have a long period of record and are distributed <br />throughout each aquifer to represent the general water levels trends in the bedrock aquifers. <br />However, we agree with your comment and have modified our Phase 3 Task 44.2 Technical <br />Memorandum to included a larger data set to show changes in water levels over time. <br />16. I recommend you use a single scale for your hydrographs. It is confusing to the viewer when <br />you change vertical scales. <br />This is a good suggestion. However, because of the often large differences in water level <br />fluctuations throughout the Denver Basin, we decided to use different vertical scales to more <br />clearly show variation in the data at individual wells. <br />17. The variability in well decline that you discuss briefly on page 13 is largely because the <br />aquifers are under variable stress across the basin. This shows up in your maps with dots. Here I <br />think you should be more explicit and map out areas where the levels are falling at say over 25 <br />feet per year as the series of isolated dots is hard for a viewer to interpret. <br />Agreed; the Phase 3 Technical Memorandum includes a new section (Section 3.2) that shows <br />water level declines observed throughout each aquifer. <br />18. On figure 21 which covers an area greater than my figure 16 in the Mt Geologist has many <br />fewer data points in the Douglas County area. Do you have a protocol for not using some of the <br />State Engineer's data? <br />Yes; this figure uses data from springtime measurements and only for wells that were measured <br />in both time periods identified. The text in Section 1.5 has been expanded and a note has been <br />added to the figure to more clearly describe this. <br />19. I can read this chapter and come a way without a full understanding of the water level decline <br />data. I encourage you to consider making maps like the USGS has showing amounts of decline <br />over given time-spans. <br />The text in Sections 3.2 (results) and 4 (conclusions) have been expanded to more fully describe <br />water level declines. In addition, the Phase 3 Task 44.2 Technical Memorandum has been <br />expanded to include a section on water level trends (Section 3.2), based on the methods of <br />analysis described in Section 1.5 of that memo. <br />(B) Comments from Jon Ford, Leonard Rice Consulting Engineers. <br />