1. Brackish Stream Treatment Plan Possum Engineering: Josh Ogle Meg Przybyla Kyle Smith Alex Stodtmeister 12 April 2013

2. Problem Brackish Stream running backyard Desire to “go green” and make use of stream Possum Engineering chosen to explore the option and choose the most viable option Possum Engineering2

3. Field Work GPS Mapping of Dr. Chandler’s Property Water Quality Analysis Water Capacity Analysis Possum Engineering3

4. Field Work - GPS Mapping Possum Engineering4

5. Results - GPS Mapping Possum Engineering5

6. Field Work - Water Quality Analysis Possum Engineering6

7. Field Work - Water Quality Analysis Possum Engineering7 On-site analysis with water quality sondes – Dissolved oxygen, specific conductivity, temperature, pH, chlorophyll Samples taken for further testing at BYU – Total solids, total suspended & volatile solids – Chemical oxygen demand – Metal concentrations

8. Results – On-site Analysis Location Temp [°F] pH [Units] SpCond [µS/cm] Sal [ppt] TDS [g/l] LDO% [Sat] LDO [mg/l] Chlorophyll [µg/l] Mouth60.098.8640572.212.6105.78.610.36 Throat58.68.9040602.212.6106.08.790.35 SD61.18.8440532.212.6106.88.610.36 Possum Engineering8

9. Results – Solids and COD Location Total Solids [mg/L] Total Suspended Solids [mg/L] Total Volatile Solids [mg/L] COD [mg/L] Mouth3904.12.641.0254.3 Throat3870.42.650.3954.6 SD4645.63.250.443.6 Possum Engineering9

10. Results - ICP Ion Mouth [ppm] Throat [ppm] SD [ppm] Ca653.80746.90672.30 K86.5575.3665.67 Mg180.80181.80158.90 Na132.70139.00114.60 S470.90523.80449.20 Possum Engineering10

11. Results – Water Chemistry Minerallog IAPSat. index Aragonite-6.4791.803 Artinite8.082-2.21 Brucite14.879-2.877 CaCO3xH2O(s)-6.4790.61 Calcite-6.4791.954 CaS(s)-9.61-20.79 Dolomite (disordered)-13.2762.997 Dolomite (ordered)-13.2763.587 Epsomite-5.046-2.853 Gypsum-4.728-0.112 Halite-4.142-5.671 Huntite-26.872.478 Hydromagnesite-12.309-4.8 KCl(s)-4.558-5.458 Lime15.197-18.618 Possum Engineering11 Minerallog IAPSat. index Magnesite-6.7970.778 Mg(OH)2 (active)14.879-3.915 Mg2(OH)3Cl:4H2O(s)19.207-6.793 MgCO3:5H2O(s)-6.797-2.257 MgS(s)-9.928-27.608 Mirabilite-7.107-5.536 Natron-8.858-7.168 Nesquehonite-6.797-2.266 Periclase14.879-7.575 Portlandite15.197-8.247 Sulfur-11.135-9.084 Thenardite-7.107-7.481 Thermonatrite-8.858-9.555 Vaterite-6.4791.361

12. Slingshot Option 264.2 gallons of water/day Cost - $100,000 Possum Engineering12

13. Heat Exchange Option Possum Engineering13 Cost - $20,000 ROI - $1,200/year (Cutting Power Bill by 42-50%) 15,000 linear feet of pipe lay coiled 10 feet underground in horizontal slinky loop Paxman Heating installed Dr. Astle’s system

14. Water Purification Option Possum Engineering14 Total Cost ≈ $15,500 ROI ≈ $420/year (If 50% of monthly water use provided by RO System) COST ≈ $500 COST ≈ $14,250 COST ≈ $250

15. Legal Constraints Possum Engineering15 After receiving all Water Users' Claims, the State Engineer then prepares a proposed determination of water rights of all water users in the drainage or sub- drainage that is served on water users and filed in court

16. Final Recommendation Possum Engineering16 Ground Heat Exchange System Benefits: Cut Power Bill in half Investment Cost: $20,000 Return on Investment: $1,200 per year Pay for itself in 16 years

17. Acknowledgements Dr. Mike Chandler Dr. Gus Williams Dr. Jim Nelson Dr. Wood Miller Dr. Craig Astle Craig Hammer Paxman Heating Jay Sandberg, P.E. Phil Stewart Zola Adjei Possum Engineering17