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Water, Sewer & Stormwater Rates
Effective July 1, 2025 Ann Arbor water bills will be charged according to the following rate structure, based on water meter readings.
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Residential 1
Rate is based on a single water meter used in a home
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Residential 2
Rate when a second Water-Only meter is also used in a home
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Water Only**
Rate for the second meter for non-sewer water uses, such as for irrigation
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Non-Residential Rate
(Locations may also have a second, Water Only** meter)
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Multi Family Rate
Locations with 3 or more units
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1-9 CCFs*
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$2.70 per CCF
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$2.70 per CCF
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$13.30 per CCF
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$5.83 per CCF
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$3.24 per CCF
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10-18 CCFs*
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$4.32 per CCF
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$4.32 per CCF
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$13.30 per CCF
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$5.83 per CCF
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$3.24 per CCF
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19-36 CCFs*
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$10.01 per CCF
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$4.32 per CCF
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$13.30 per CCF
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$5.83 per CCF
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$3.24 per CCF
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Over 36 CCFs*
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$21.47 per CCF
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$4.32 per CCF
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$13.30 per CCF
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$5.83 per CCF
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$3.24 per CCF
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Water Customer Charge
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$31.84/quarter for 5/8 inch and 3/4 short standard residential meter; charge varies by meter size
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$31.84/quarter for 5/8 inch and 3/4 short standard residential meter; charge varies by meter size
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$31.84/quarter for 5/8 inch and 3/4 short standard residential meter; charge varies by meter size
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Customer charge varies by size of water meter
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Customer charge varies by size of water meter
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Sewer Service Rate per CCF*
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$6.72 per CCF Resident 1 Summer sewer usage is calculated at winter water use rate, so the water used for outdoor activities is not charged to sewer
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$6.72 per CCF
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No sewer fees
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$6.72 per CCF
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$6.72 per CCF
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Sewer Customer Charge
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$16.93/quarter for 5/8 inch and 3/4 short standard residential meter; charge varies by meter size
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$16.93/quarter for 5/8 inch and 3/4 short standard residential meter; charge varies by meter size
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No charge
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Customer charge varies by size of water meter
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Customer charge varies by size of water meter
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Stormwater Discharge Fee
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Refer to Stormwater section below
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Not Applicable
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Not Applicable
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Refer to Stormwater section below
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Refer to Stormwater section below
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Stormwater Charge+
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$4.58
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Not Applicable
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Not Applicable
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$4.58
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$4.58
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Discount for bill paid by due date
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10% Savings available
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10% Savings available
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10% Savings available
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10% Savings available
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10% Savings available
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Full rate structure available (PDF)
Some residential customers receive a summer sewer discount, so if you use more water in the summer for your garden, you still pay the winter average on the sewer volume charges because we assume during the summer usage is outdoors and does not return to the sewer system to be treated. Learn more about the Summer Sewer Discount
Questions about water shut-offs or bill payments, please contact the Customer Service Center 734.794.6320 option 1 or e-mail CustomerService@a2gov.org.
734.794.6333 
