Water Usage Rates & Charges

Residential water rates beginning July 1, 2025

Tier	% of monthly water budget	Rates per CCF*
Low Volume	0-40%	$2.07
Base	41-100%	$2.72
Inefficient	101%-140%	$7.51
Wasteful	141%+	$18.60

Residential sewage rates beginning July 1, 2025

Usage	Rates
Average water usage exceeds 10 CCFs per month	$43.45
Average water usage falls between 5 and 10 CCFs	$37.00
Average water usage falls below 5 CCFs	$28.80

Landscape irrigation potable and recycled water rates beginning July 1, 2025

Tier	% of monthly water budget	Rates per CCF
Low Volume	0-40%	$2.07 (potable) $1.38 (recycled)
Base	41-100%	$2.72 (potable) $2.39 (recycled)
Inefficient	101%-140%	$7.51 (potable) $5.43 (recycled)
Wasteful	141%+	$18.60 (potable) $9.93 (recycled)

Commercial / industrial / public authority / nonresidential mixed-use potable and recycled water rates beginning July 1, 2025

Tier	% of monthly water budget	Rates per CCF
Base	0%-100%	$2.72 (potable) $1.38 (recycled)
Wasteful	101%+	$18.60 (potable) $9.93 (recycled)

Nonagricultural landscape irrigation recycled water rates beginning July 1, 2024

Tier	% of monthly water budget	Rates per CCF
Low Volume	0-40%	$1.38
Base	41-100%	$2.39
Inefficient	101%-140%	$5.43
Wasteful	141%+	$9.93

Commercial / industrial / public authority / nonresidential mixed-use recycled water rates (including toilets and cooling towers) beginning July 1, 2025

Tier	% of monthly water budget	Rates per CCF
Low Volume	0-100%	$1.38
Wasteful	101%+	$9.93

Agricultural and other rates beginning July 1, 2025

Connection type	Rates per CCF
Agricultural potable water rates	$3.92
Recycled water used for agricultural purposes	$2.04
Untreated water used for agricultural purposes	$2.28

*1 CCF = 748 gallons

Water bill calculator

Use our rate calculator to estimate your bill and learn how saving water helps keep your rates low.

Understanding the budget-based rate structure

IRWD uses a budget-based water rate structure. How much you are charged for the water you use depends on whether you stay within your monthly budget.

Residential and landscape water customers are billed according to four rate tiers:

Low Volume: Using up to 40% of your monthly water budget.
Base: Using 41% to 100% of your monthly water budget.
Inefficient: Using 101% to 140% of your monthly water budget.
Wasteful: Using 141% or over of your monthly water budget.

Low Volume and Base rates are considered waste use within your monthly budget, while Inefficient and Wasteful are considered water use over your monthly budget.

Commercial customers are billed based on a similar structure, but with two tiers: