Utility Rates

Information on Water & Sewer Rates - October 2022

In order to ensure that our utility rates will continue to support our operating costs and debt service obligations, the City hired a rate consultant to evaluate our utility system’s operation costs and debt payments, and offered recommendations regarding rate adjustments that would be necessary to fully fund the cost of operating our system while maintaining adequate financial reserves. Based on the most recent rate study analysis, it is necessary to increase utility rates in the 2022-2023 budget. The rates will be adjusted effective October 1, 2022. Customers will notice the increased rates in their November bills. The typical residential water customer uses 5,100 gallons of water in an average month. The proposed rate adjustment will increase the average monthly bill (combined for water and sewer) by $5.36.

The primary factors contributing to the rate adjustment include 1) increasing costs from the North Texas Municipal Water District (NTMWD) for wastewater transport and treatment charges; 2) increasing wholesale costs to purchase treated surface water from NTMWD through a contract with the Greater Texoma Utility Authority (GTUA); and 3) capital investment requirements including infrastructure and equipment.

The following table illustrates the changes to the base and volumetric rates for water and wastewater charges that each residential customer pays. Water customers outside the City limits are charged 1.25 times the water rates and 1.5 times the wastewater rates.

Water/Sewer Base Rates

The minimum base rates for 0-2,000 gallons of water and sewer are as follows (in the Anna City limits):

Meter SizeBase Rate - WaterBase Rate - Residential SewerBase Rate - Commercial Sewer
1"$67.97$32.00 $65.99
1.5"$130.39$32.00 $126.59
2"$205.30$32.00  $199.31
3"$380.08$32.00 $369.00
4"$629.76$32.00  $611.40
6"$1,254.00$32.00 $1,217.43
8"$2,502.44$32.00  $2,429.47
10"$6,247.80$32.00 $6,065.61

Water Rates

For water consumption, each customer inside the Anna City limits will pay the minimum charge for 0-2,000 gallons. Any consumption over 2,000 gallons is charged as follows:

ConsumptionPrice per 1,000 gallons


Over 20,000


Note – For residential customers, the maximum monthly billed flow will be 14,000 gallons. Since 2,000 gallons are included in the minimum charge, 12,000 gallons will be billed at the unit rate.

Volumetric Water Rates

Rate per 1,000 gallons

0-2,000 gallons

$0 – included in the base rate

2,001 to 10,000 gallons


10,001 to 15,000 gallons


15,001 to 20,000 gallons


Over 20,000 gallons


Volumetric Wastewater Rates

Rate per 1,000 gallons

0-2,000 gallons

$0 – included in the base rate

Over 2,000


The water and wastewater charges are calculated by adding the base rates to the variable volumetric charges. The average customer in Anna uses about 5,100 gallons of water in an average month. Under the new rate schedule, the water and wastewater bill of a customer with a ¾ inch meter using 5,100 gallons of water would be calculate as follows:

  • $30.52 (Base Rate) + $0 (first 2,000 gallons) + ($7.29 x 3,100 gallons) = $53.12 for water
  • $32.00 (Base Rate) + $0 (first 2,000 gallons) + ($6.33 x 3,100 gallons) = $51.62 for wastewater
  • $53.12 (water) + $51.62 (wastewater) = $104.74 for water and wastewater.

Please remember your utility bill also includes charges for solid waste and recycling pick up. For questions about your utility bill, please contact Utility Billing at 972-924-2432 or email us.

North Texas Groundwater Conservation District Water Production Fee 

Starting January 2021, a $0.15 cent per 1,000-gallon water production fee will be charged to support the North Texas Groundwater Conservation District in addition to the rates outlined above.

Sewer Rates

For sewer consumption, each customer inside the city limits shall pay the minimum charge specified above for the first 2,000 gallons of water usage plus $6.33 for each additional 1,000 gallons of water used.

*For residential customers only, the maximum sewer charges are $107.96.

Outside City Limits

All customers outside the city limits will pay 1.25 times the rate charged to customers inside the city limits for water, and 1.5 times the in-city rate for wastewater.