Availability Charge Sample Calculation

Availability Charge Rates (effective January 1, 2022):

  • Water: $13.45 per gallon (max day usage)
  • Sewer: $32.63 per gallon (average day usage)

Consumption Usage Rates (effective January 1, 2022):

  • Water: $3.53 per thousand gallons (Tier 1)
                $6.07 per thousand gallons (Tier 2)

  • Sewer: $5.43 per thousand gallons
  • Reclaimed Water: $1.70 per thousand gallons

EXAMPLE:
Assumptions:

  • 100,000 SF data center
  • Cooling tower use: maximum daily water usage = approx. 100,000 gallons
  • Average day sewer is 20% of max day water = 20,000 gallons
 
Without Reclaimed Water:

One time availability charge
Water (Cooling Towers): 100,000 gallons x $13.45/gallon = $1,345,000
Sewer (Cooling Towers): 20,000 gallons x $32.63/gallon = $652,600

TOTAL: $1,997,600

With Reclaimed Water:

One time availability charge
Water (Cooling Towers): 100,000 gallons x $13.45/gallon x 10%= $134,500
Sewer (Cooling Towers): 20,000 gallons x $32.63/gallon = $652,600

TOTAL: $787,100

Annual Consumption Savings with Reclaimed Water for Cooling
50,000 gpd average x 365 days x ($3.53 - $1.70) / 1,000 gallons = $33,397.50