1. Wastewater Effluent Reuse – Irrigation Relief in the High Desert City of Albuquerque, NM by James Chavez, PE, City of Albuquerque Bob Paulette, PE, Wilson & Company Ron Mosher, PE, Molzen-Corbin & Associates presented to the Rocky Mountain Section WEA/AWWA Annual Conference, Casper Wyoming September 17, 2003 MOLZEN-CORBIN & Associates

2. Paper Outline Introduction Development of Effluent Reuse “Users” New NMED Reuse Discharge Guidelines Effluent Polishing Treatment Reuse Pipeline Conclusions

3. Introduction Effluent Reuse Part of Overall Water Resources Management Plan Two Non-Potable Reuse Projects North – Saves 2,296 Ac-ft/yr South – Saves 2,455 Ac-ft/yr In range of water for 2,000 homes EA & FONSI Complete 2001

4. Effluent Reuse “Users” Existing Potable Water Users Turf Irrigation Cooling Water Feasibility Analysis Identified Potential Design Analysis Further Defined – Quantity, Quality – Connection Points, Pressure – Existing System Modifications Required (Drinking Fountains, etc)

6. NMED Reuse Guidelines Finalized August 7, 2003 Classes of Reuse - IA, IB, 2, 3 Sets Performance Limitations More Flexibility in Facilities

7. Reuse Quality Guidelines ClassParameter30-Day AvgMaximum Class 1ABOD51015 Turbidity3 NTU5 NTU Fecal Coliform5 per 100 ml23 per 100 ml Class 1BBOD530 mg/l45 mg/l TSS30 mg/l45 mg/l Fecal Coliform100 per 100 ml200 per 100 ml Class 2BOD530 mg/l45 mg/l TSS30 mg/l45 mg/l Fecal Coliform200 per 100 ml400 per 100 ml Class 3BOD530 mg/l45 mg/l TSS75 mg/l90 mg/l Fecal Coliform1,000 per 100 ml5,000 per 100 ml

8. Effluent Polishing Treatment Low Lift Pumping from Chlorine Contact Chamber Filtration Disinfection Clearwell High Lift Pumping

9. Overall Reuse Polishing Layout

10. Filtration Screening Study Conventional Deep Bed Coarse Media Automatic Backwash Traveling Bridge Cloth Filters Disk Filters Membrane Filtration “Fuzzy” Filters

11. Reuse Pipeline Reuse Pipeline Alignment Set By Feasibility Study, EA & FONSI All in Existing R/W Locate within Corridors to Minimize Utility Conflicts Crossing Permits – AMAFCA, MRGCD, BNSF, NMDOT

12. Pipeline Alignment Map

13. Mid-Point Storage & Pump Puerto Del Sol Golf Course 1.9 million gallon Storage Tank 560 gpm Pumping Station Height Constraints – FAA & Esthetics Location Constraints – Golfers & Neighborhood Pipeline Location Along Fairway

14. Mesa Del Sol Recreation Area New Roadway Not Built Follow “Proposed” Right-of-Way 40-50 Foot Cut/Fill

15. Pipeline Constraints – Non-Residential Areas Within Existing R/W Utility Conflict Potential Permitting Issues –MRGCD –AMAFCA –BNSF –NMDOT

16. Pipeline Installation – Residential Areas Residential “Issues” Traffic Control Residential Access “Good Neighbor”

17. THANK YOU! Now-------Questions???