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Water Fees

New FY27 Surface Water Individual Permit Fees

Revised On: Aug. 4th, 2026 - 05:54 am

Large facilities like municipal wastewater treatment plants, mines, Individual municipal separate storm sewer systems (MS4) or other industrial facilities that discharge to a Water of the United States (WOTUS) or a water on the Protected Surface Water List (PSWL). These fees are subject to an annual adjustment and will be updated annually on this page. Facilities are subject to:

  • Hourly fees of $184.09 per hour
  • Maximum fee caps

Permit Type

Maximum Fee

Individual permit for municipal separate storm sewer system

$60,390.14

Individual permit for wastewater treatment plant (based on gallons of discharge per day)

 

3,000 to 99,999

 

100,000 to 999,999

 

1,000,000 to 9,999,999

 

10,000,000 or more

 

 

$22,646.30

 

$30,195.07

 

$45,292.60

 

$75,487.68

 

Individual permit for a facility or activity that is not a wastewater treatment plant or a municipal separate storm sewer

$45,292.60

Amendment to an individual permit

$18,871.92

Approval of a new or revised pretreatment program under AZPDES

$15,097.53

Consolidated individual permit for multiple AZPDES individual permits, as allowed under A.A.C. R18-9-B901(C)

Aggregate of the
applicable maximum fees

 

 

Permit Type

Annual Fee

Annual Registration Fee if Facility is Not Yet Constructed

Municipal Separate Storm Sewer System

$15,097.53

N/A

Wastewater Treatment Plant (based on gallons of discharge per day):

 

Less than 99,999

100,000 to 999,999

1,000,000 to 9,999,999

10,000,000 or more

 

 

 

 

$377.70

$755.40

$3,774.91

$6,039.01

 

 

 

$377.70

$755.40

$943.72

$1,132.05

Facility or activity that is not a wastewater treatment plant or municipal separate storm sewer and designated in the permit as either:

Major

 

Minor

 

 

 

$3,774.91

 

$755.40

 

 

 

$943.72

 

$755.40

Pretreatment Program

$4,529.26

N/A

Consolidated individual permit for multiple AZPDES

individual permits, as allowed under A.A.C. R18-9-B901(C)

Aggregate of the applicable annual fees of each individual permit

Aggregate of the applicable annual fees of each individual permit