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Stormwater Rates
 Residential Stormwater Rates
 Year  Base Rate Per Month  Base Rate Per Day
 2016 $7.88 $.2591 

 Commercial Stormwater Rates
 Customer ISA Fee   2016 Monthly Rate
0 - 16,000 sq ft (ISA÷3900) x ($7.88) As Calculated
16,001 - 100,000 sq ft $32.33 + [((ISA-16,000)÷84,000)×$28.37] As Calculated
100,001 & Above sq ft $60.70 + [((ISA-100,000)÷100,000)×$31.51] As Calculated

*ISA = Impervious Surface Area

501 North Anderson Street
Ellensburg, WA 98926
(509) 962-7204