May 2013
County of Maui Pure Genius
Water Recycling Overview Proposed Replacement of the Kahului Wastewater Treatment Facility The Kahului wastewater treatment plant was built in the 1970s and subsequently expanded and improved to meet new growth and environmental standards. The facility has a rated capacity of 8 million gallons per day, and currently treats approximately 5 million gallons per day that subsequently discharges treated effluent through injection wells. The plant is not capable of producing recycled water without significant capital investment, and the facility requires capital improvements to maintain the longevity of the infrastructure. The facility sits on approximately 35 acres on the north side of the Island of Maui, within 100 feet of the Pacific Ocean, and close to the Kahului International Airport. Of other importance, the facility is 3 feet above sea level and therefore at risk of Tsunami damage.
PERC Water Solution
Project Delivery Flexibility
Environmental and Risk Benefits
PERC Water proposes to relocate the facility inland to a property at a higher elevation resulting in improved water quality that can produced R1 recycled water for alternative uses within the County. This fact sheet provides an overview of the benefits of relocating the wastewater treatment facility and building a new stateof-the-art recycled water facility.
• Improves ocean life
• Public-Private Partnership
• Avoids corrosion & degradation
• County owned facility
• Eliminates tsunami risk
• Privately financed option
• Production of R1 recycled water
• Risk transfer to PERC Water
• Alternative energy sources
• Long-term certainty to the County
• Repurpose existing property
• Life-cycle cost focus
• Facility Footprint of < 4 acres
• In service by 2017
About PERC Water
Facility & Infrastructure Cost
PERC Water Corporation is an innovative water infrastructure company that develops, designs, builds, operates and manages water infrastructure throughout the United States. We have designed 60 water infrastructure projects over the past 14 years, 22 of which we have built and placed into operation. Our unique project approach results in certainty of cost, schedule and water quality for our clients.
Annual O&M Cost
Financial Overview
Recycled Water Revenue EDUs Served Cost per EDU (month)
Design Criteria $150 mm $6 mm $1.5 mm 30,000 $57
Capacity
8.0 mgd
Current Flows
5.5 mgd
Filtration Method Disinfection Sludge Dewatering
Membrane UV Light 20%-22%
Water Quality BOD5
Effluent < 5 mg/L
TSS
< 5 mg/L
TN
< 5 mg/L
Project Contact
Total Coliform
Brian Cullen, President PERC Water Corporation 959 South Coast Drive, Suite 315 Costa Mesa, California 92626 949-375-4892 bcullen@percwater.com
Turbidity
< 2.2 /100 ml < 2 NTU