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Water and wastewater rates

Water and wastewater rates are determined using the following principles:

  • Fairness and Equity to our customers - rates reflect each customer's fair share of the costs to provide them with water and wastewater services. This means that customers pay for what they use.
  • Financial Sustainability - the water utility receives no funding from property taxes, so rates fund all necessary investments in the water utility including treatment plants, underground pipes and storage reservoirs. These investments allow The City of Calgary to expand, operate and maintain reliable water and wastewater service to meet the needs of a growing population.
  • Water Resource Management - water is a precious resource and the supply is limited. Water rates are structured to encourage all customers to conserve water, to protect the river and the watershed, and meet all environmental regulatory water requirements. This ensures that we will continue to protect public health by ensuring a high quality supply of water today and in the future.

Water and wastewater charges are calculated by the number of days on your Enmax bill. The number of days billed can vary from 26 to 34 on your statement.

The rates listed below are all based on 30-days-of-service, which means the amount on your bill may be higher or lower, depending on the number of days you have been billed.

In This Section:

2012-2014 Water Rates

At the end of November 2011, City Council finalized water and wastewater rates for 2012-2014. The new rates will come into effect on Jan. 1, 2012 and were reflected in your February 2012 Enmax water bill. All rates have been set in accordance with the following municipal bylaws: http://www.calgary.ca/_layouts/images/cocis/icon_pdf_s.pngWater Utility Bylaw 40M2006 and http://www.calgary.ca/_layouts/images/cocis/icon_pdf_s.pngWastewater Bylaw 14M2012.

The new rates are as follows:

  • Water: An increase of 7.6 per cent for 2012, 7.5 per cent for 2013, and 7.4 per cent for 2014.
  • Wastewater: An increase of 13.5 per cent for 2012, 13.5 per cent for 2013, and 13.5 per cent for 2014.
  • Stormwater drainage charge: An increase of 4.9 per cent for 2012, 4.9 per cent for 2013, and 4.9 per cent for 2014.

2014 Water Rates

For residential metered customers

Single or two-family residential metered)

 

2012

2013

2014

Service charge ($ per 30 days)

$13.64

$14.67

$15.75

PLUS

 

 

 

Usage rate ($ per cubic metre)

$1.4876

$1.5991

$1.7175

For residential flat rate customers

 

2012

2013

2014

$ per thousand square feet of actual lot area

$5.0933

$5.4752

$5.8804

PLUS

 

 

 

$ per thousand square feet of gross building area

$15.8834

$17.0747

$18.3382

For example:

For a 5,000 square foot lot, the calculation is 5 multiplied by $5.8804 (using 2014 amounts)

PLUS

For 2,000 square feet of total building space, the calculation is 2 x $18.3382 (using 2014 amounts)

For general service and multi-family customers

General Service and Multi Family Customers will be charged a basic monthly service charge based on the size of water meter.

Service charge according to water meter size
($ per 30 days)

2012

2013

2014

15 mm*

$13.64

$14.67

$15.75

20 mm

$19.10

$20.53

$22.05

25 mm

$20.36

$21.88

$23.50

40 mm

$36.81

$39.57

$42.50

50 mm

$42.75

$45.95

$49.35

75 mm

$64.26

$69.08

$74.19

100 mm

$78.65

$84.55

$90.81

150 mm

$107.39

$115.45

$123.99

200 mm

$203.88

$219.17

$235.39

250 mm

$453.50

$487.51

$523.59

*all residential metered and residential irrigation services will be charged the 15 mm charge.

Usage Rate - Customers Inside City Limits
($ per cubic metre)

2012

2013

2014

Irrigation Service

$1.9218

$2.0660

$2.2188


Multi Family Metered Usage Rate
($ per cubic metre)

2012

2013

2014

Usage rate per month

$1.3799

$1.4834

$1.5932


General Service Metered Usage Rate
($ per cubic metre)

2012

2013

2014

less than or equal to 25 mm

$1.4876

$1.5991

$1.7175

40 or 50 mm

$1.1182

$1.2021

$1.2910

greater than or equal to 75mm

$0.8628

$0.9275

$0.9962

Sanitary Wastewater Charges

For residential metered customers

 

2012

2013

2014

Service Charge ($ per 30 days)

$12.53

$14.23

$16.15

Usage Rate ($ per cubic metre of water used)

$0.7836

$0.8894

$1.0094


For residential flat rate customers

The sanitary sewer service charge is calculated as a percentage of the water charge according to the following:

 

2012

2013

2014

Percentage of water charge (%)

65.36

69.01

72.93


For multi-family residential customers

 

2012

2013

2014

Service Charge ($ per 30 days)

$12.53

$14.23

$16.15

Usage Rate ($ per cubic metre of water used)

$0.8656

$0.9825

$1.1151


For non-residential customers

 

2012

2013

2013

Service Charge ($ per 30 days)

$12.53

$14.23

$16.15

Usage Rate ($ per cubic metre of water used)

$0.8200

$0.9307

$1.0563

For Effluent Meter Customers

In addition to any charge in the above table, a charge equal to the service charge and the usage rate according to the following table for the equivalent amount of water with which the property is served from other sources.

To determine the quantity of water that is billed, the customer's effluent meter reading is divided by the return factor and multiplied by the rate.

Effluent meter rates

 

2012

2013

2014

Service Charge ($ per 30 days)

$12.53

$14.23

$16.15

Usage Rate ($ per cubic metre of wastewater released into The City’s wastewater system)

$0.9112

$1.0342

$1.1738


Return factors

Customer Class

Return Factor

Single Family Residential Metered

0.86

Multi Family Residential Metered

0.95

General Service Metered

0.90


Wastewater surcharge rates

The rates or charges described are shown for the years 2012, 2013, and 2014, and must apply in the calendar year indicated (from January 1 to December 31, inclusive)

 

2012

2013

2014

Service Charge ($ per 30 days)

$12.53

$14.23

$16.15

Usage Rate ($ per cubic metre of water used)

$0.8200

$0.9307

$1.0563

Formulas for determining the surcharge to be levied in 2012, 2013, and 2014. Applies to customers in waste effluent surcharge program.

2012 Formula:

  • R = 0.5155 B + 0.4095 S + 0.6960 G where "R" means rate in cents per thousand gallons
  • R = 0.1134 B + 0.0901 S + 0.1530 G where "R" means rate in cents per cubic metre.

2013 Formula:

  • R = 0.5851 B + 0.4648 S +0.7900 G where "R" means rate in cents per thousand gallons
  • R = 0.1287 B + 0.1023 S + 0.1737 G where "R" means rate in cents per cubic metre.

2014 Formula:

  • R = 0.6641 B + 0.5276 S + 0.8966 G where "R" means rate in cents per thousand gallons
  • R = 0.1460 B + 0.1161 S + 0.1971 G where "R" means rate in cents per cubic metre.
  • B means the amount in milligrams per litre by which the biochemical oxygen demand of the sewage tested exceeds three hundred milligrams per litre;
  • S means the amount in milligrams per litre by which the suspended solids of the sewage exceeds three hundred milligrams per litre; and
  • G means the amount expressed in milligrams per litre by which the grease content of the sewage tested exceeds one hundred milligrams per litre.

Drainage service charges

For customers inside city limits

2012

2013

2014

Drainage Service Charge ($ per 30 days)

$8.36

$8.77

$9.20

Charges for Acceptance of Hauled Wastewater and Septage in the City

Customers that have a permit to dispose of Hauled Wastewater and Septage into Public Disposal stations located at Bonnybrook Treatment Plant and Shepard Sludge Lagoon shall apply for an account allowing them to dispose hauled wastewater and septage to those depots. The customer will pay a fee of $25 for each access card (fee refundable on return of card), in addition to a service charge and volume charge described below.

 

2012

2013

2014

Service Charge ($ per 30 days)

$15.98

$18.14

$20.58

Volume Charge ($ per cubic metre)

$11.6750

$13.2511

$15.0400

A hauled wastewater and septage manifest shall be completed for each delivery or discharge to a City disposal site. The manifest must include:

  1. the permit holder's name;
  2. the permit number;
  3. the source(s) of the waste;
  4. the volume or quantity of waste from each source;
  5. the type of the waste from each source; and
  6. the persons consigning, hauling and releasing the waste to the wastewater collection system.

All rates described have been set in accordance with municipal bylaws. For further informational reference or to look at rates which have not been outline, please see http://www.calgary.ca/_layouts/images/cocis/icon_pdf_s.pngWater Utility Bylaw 40M2006 and/or http://www.calgary.ca/_layouts/images/cocis/icon_pdf_s.pngWastewater Bylaw 14M2012.