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Comprehensive Plan Potable Water Sub-Element
<br />
<br />
<br />Community Development Department Indian River County 27
<br />Table 3.B.9
<br />Summary of Probable Cost for Treatment Technologies Using Various Raw Water
<br />Sources
<br />
<br />Raw Water Source!
<br />Treatment Method!
<br />Plant Capacity (mgd)
<br />Raw Water
<br />Source
<br />Concentrate
<br />Disposal
<br />Capital Cost
<br />Annual
<br />O&M Cost
<br />Production Cost
<br />($/1000 gallons)4
<br />Current Costs of UFA Using Low Pressure RO - Actual Costs (FY 2007-2008)
<br />13.611 Groundwater
<br />Surface
<br />Water
<br />Discharge
<br />$30,000,000 $5,102,572 $2.05
<br />Fresh Surface Water Using Microfiltration/Ultra filtration
<br />5 Surface Water N/A2 $14,191,000 $1,078,000 $2.10
<br />10 Surface Water N/A2 $24,397,000 $1.57$1,720,000
<br />15 Surface Water N/A2 $33,064,000 $2,289,000 $1.36
<br />20 Surface Water N/A2 $41,025,000 $2,841,000 $1.22
<br />Surficial Aquifer Using Nanofiltration
<br />5 Groundwater
<br />Deep
<br />Injection Well
<br />(DIW)
<br />$24,178,000 $1,646,000
<br />$3.42
<br />10 Groundwater DIW $33,576,000 $2,836,000 $2.34
<br />15 Groundwater DIW $41,573,000 $3,913,000 $1.95
<br />20 Groundwater DIW $50,188,000 $4,992,000 $1.75
<br />Continued Use of UFA Using Low Pressure RO-New WTP and Wellfield
<br />5 Groundwater DIW $34,693,000 $1,758,000 $4.41
<br />10 Groundwater DIW $48,579,000 $3,181,000 $3.04
<br />15 Groundwater DIW $64,086,000 $4,526,000 $2.65
<br />20 Groundwater DIW $79,077,000 $5,910,000 $2.42
<br />Seawater RO Treatment
<br />5 Surface/
<br />Ground Water3 DIW $39,429,000 $3,145,000 $5.95
<br />10 Surface/Ground
<br />Water3 DIW $64,094,000 $6,230,000 $4.77
<br />15 Surface/Ground
<br />Water3 DIW $92,828,000 $9,248,000 $4.48
<br />20
<br />
<br />Surface/Ground
<br />Water3 DIW $115,436,000 $12,432,000 $4.18
<br />
<br />113.61 mgd is new WTP capacity expansion at north county RO plant; actual average production for the FY2008-2009 is projected
<br />to be 8.89 mgd. Production cost based on actual average production estimate of 8.89 mgd (3,246 mgy)
<br />2MF/UF do not produce a concentrate steam as with nanofiltration and RO systems. Residuals need to be removed from the
<br />backwash water and chemicals in the backwash solution may require neutralization prior to disposal.
<br />3Costs include only treatment. Cost of an influent pipeline or deep well to the Boulder Zone as a source is not included. Deep Injection
<br />Well disposal would vary between $5.5 million and $11 million for the water treatment plant capacities presented. 4Annual O&M and
<br />production costs are based on average daily demand using a maximum daily demand/annual average daily demand ratio.
<br />
<br />As a future long-range source of potable water, surface water located in western Indian River
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