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Water Quality Goals <br />• Table includes finished water <br />quality goals and pH goals <br />throughout treatment <br />process <br />• Same for both Hobart and <br />Oslo WTPs <br />• pH, alkalinity, and hardness <br />were the focus of evaluation <br />12/12/24 Item 5.13. <br />TETRA TECH <br />Conductivity (pS/c <br />a: s <br />— 400 <br />l5E1 <br />Clz (mg L) ".w <br />s ,= o <br />1.7. <br />2A <br />Fluoride (m <br />���> .:` <br />0.6: <br />:'0:7 <br />8.53 <br />a.fi x, <br />75 . <br />131i <br />Alkalinity (mg L as CaCO r".a- <br />55 <br />70 <br />Chlo " <br />h x xi s <br />80:: <br />— <br />$00 . . . <br />Fee a erp <br />` <br />.'� : <br />&5 <br />Blend pH prior to DegaslflcaUq, <br />5.35 <br />5 5 <br />Finished Water pH <br />^' w y <br />8.1 <br />8.3 - <br />8.39 <br />.,°` <br />k�:' <br />462 <br />- ,1.97 <br />33.1 ••v�"+., <br />260 <br />0.34 <br />2.32 <br />830 Schumann Dr * <br />8.40 <br />,y <br />469 <br />, „ :, 1.87 %,' <br />Distribution Water Quality Sampling <br />• Water sampling occurs approx. every 1-3 months from 6 locations throughout <br />distribution system with various water ages <br />• Table shows 2022 average sampling results <br />• Values are consistent across the distribution system and vary by less than 5% <br />• Variations in water quality in the distribution system from multiple sources can <br />lead to corrosion --> water quality results do not show this <br />K. , <br />8.55 <br />gs <br />- 468 <br />:1.70 F; <br />: 34.3 r, :g <br />a''` °. <br />264 <br />_ 0.57 <br />4.24 <br />131817 US-HWVA ,E=- <br />8.53 <br />€� <br />:� <br />473 <br />.� :1.43 "' <br />94.6 -� <br />`.;.,,:-w <br />275 <br />0.52 <br />3.87 <br />5110 Indian River :: <br />SA5 <br />.'� : <br />482, .. <br />1.89 <br />9,9.6 ; � <br />'�.: <br />286 <br />0.40 <br />2.47 <br />5920 Old Dixie Hwy ":° <br />8.39 <br />.,°` <br />k�:' <br />462 <br />- ,1.97 <br />33.1 ••v�"+., <br />260 <br />0.34 <br />2.32 <br />830 Schumann Dr * <br />8.40 <br />,y <br />469 <br />, „ :, 1.87 %,' <br />34.8 ;,,. <br />5'.i,'c" <br />262 <br />0.33 <br />2.41 <br />14499USHWYI .+4.i? <br />8.34 <br />,7 <br />470 <br />,,;1.60 <br />34.4 <br />2.04 <br />Notes <br />'Calculated by Tetra Tech using the Tetra Tech <br />(RTW) Model for Water Chemistry, <br />Process and Corrosion <br />Control, Version 2.0. <br />- <br />