Wastewater Effluent Reuse

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Wastewater Effluent Reuse Irrigation Relief in
the High DesertCity of Albuquerque,
NMbyJames Chavez, PE, City of AlbuquerqueBob
Paulette, PE, Wilson CompanyRon Mosher, PE,
Molzen-Corbin Associatespresented to the
Rocky Mountain Section WEA/AWWA Annual
Conference, Casper WyomingSeptember 17, 2003
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Paper Outline

• Introduction
• Development of Effluent Reuse Users
• New NMED Reuse Discharge Guidelines
• Effluent Polishing Treatment
• Reuse Pipeline
• Conclusions

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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

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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)

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NMED Reuse Guidelines

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

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Reuse Quality Guidelines
Class Parameter 30-Day Avg Maximum
Class 1A BOD5 10 15
Turbidity 3 NTU 5 NTU
Fecal Coliform 5 per 100 ml 23 per 100 ml
Class 1B BOD5 30 mg/l 45 mg/l
TSS 30 mg/l 45 mg/l
Fecal Coliform 100 per 100 ml 200 per 100 ml
Class 2 BOD5 30 mg/l 45 mg/l
TSS 30 mg/l 45 mg/l
Fecal Coliform 200 per 100 ml 400 per 100 ml
Class 3 BOD5 30 mg/l 45 mg/l
TSS 75 mg/l 90 mg/l
Fecal Coliform 1,000 per 100 ml 5,000 per 100 ml
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Effluent Polishing Treatment

• Low Lift Pumping from Chlorine Contact Chamber
• Filtration
• Disinfection
• Clearwell
• High Lift Pumping

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Overall Reuse Polishing Layout
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Filtration Screening Study

• Conventional Deep Bed Coarse Media
• Automatic Backwash Traveling Bridge
• Cloth Filters
• Disk Filters
• Membrane Filtration
• Fuzzy Filters

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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

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Pipeline Alignment Map
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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

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Mesa Del Sol Recreation Area

• New Roadway Not Built
• Follow Proposed Right-of-Way
• 40-50 Foot Cut/Fill

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Pipeline Constraints Non-Residential Areas

• Within Existing R/W
• Utility Conflict Potential
• Permitting Issues
• MRGCD
• AMAFCA
• BNSF
• NMDOT

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Pipeline Installation Residential Areas

• Residential Issues
• Traffic Control
• Residential Access
• Good Neighbor

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THANK YOU!

• Now-------Questions???