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Utility Billing - Sewer |
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Sewer charges on your bill are based on meter size and water consumption
(except for some commercial accounts). Sewer Base Charges
(Two residences on one meter are billed at twice the base rate.)
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Meter Size |
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Equivalence Factor |
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Base Charge |
| 5/8 “ x ¾ ” |
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1.0 = Base |
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$29.45 |
| ¾ “ |
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1.2 x Base |
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$35.34 |
| 1” |
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1.4 x Base |
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$41.23 |
| 1 ½ ” |
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1.8 x Base |
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$53.01 |
| 2” |
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2.9 x Base |
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$85.41 |
| 3” |
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11.0 x Base |
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$323.93 |
| 4” |
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14.0 x Base |
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$412.28 |
| 6” |
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21.0 x Base |
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$618.41 |
| 8” |
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29.0 x Base |
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$854.00 |
Sewer Commodity Charge
Consumption charges per cubic foot (CF). One CF equals 7.48 gallons.
| Classification Charge |
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Waste Strength |
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Block Rate |
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| SIC 1 |
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<300 mg/l BOD or TSS |
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$2.11 |
100 CF |
| SIC 2 |
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301-500 mg/l BOD or TSS |
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$2.61 |
100 CF |
| SIC 3 |
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501-700 mg/l BOD or TSS |
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$5.09 |
100 CF |
| SIC 4 |
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>700 mg/l BOD or TSS |
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$0.82 |
100 CF |
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BOD per pound |
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$1.10 |
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TSS per pound |
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$0.68 |
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Maximum Sewer Charges For Residential Accounts
Residential and single metered duplex accounts have a ceiling on the
sewer charges. This ceiling is determined by averaging the four winter
months November, December, January and February (adjustments due to
leaks or misreads during the averaging period are factored in). This
average is used to determine each account's AWWU, and their ceiling
for the period April 1st to April 1st of each year. This averaging
system was designed to allow customers to use more water during the
seasonal months but to keep the sewer charge at a reasonable rate
during these periods.
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Single Family Residence ( 5/8” x ¾ ” Water
Meter) |
| AWWU |
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Ceiling Consumption |
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Maximum Charges |
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600 CF |
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$39.16 |
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800 CF |
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$43.09 |
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1,000 CF |
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$47.01 |
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1,500 CF |
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$56.71 |
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Over 1,500 CF |
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No Limit |
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Single Metered Duplexes: ( 5/8” x ¾ ” Water
Meter) |
| AWWU |
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Ceiling Consumption |
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Maximum Charges |
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1,200 CF |
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$ 78.32 |
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1,600 CF |
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$ 86.17 |
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2,000 CF |
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$ 94.02 |
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3,000 CF |
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$113.66 |
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Over 3,000 CF |
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No Limit |
More information is available at our Wastewater Treatment Plant page.
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Contact Us |
Utility Billing, Finance Department
In person: 904 6th St, City Hall Municipal Building
Mailing Address: P.O. Box 410, Anacortes, WA 98221
Phone: (360) 293-1909Fax: (360) 293-1928
e-mail:
niomif@cityofanacortes.org |
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Office Hours |
The Finance Department is open Monday through
Friday except holidays.
Office Hours: 8:00 a.m. to 5:00 p.m. |
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