§ 13.12.111. Definitions.

As used in this Chapter, certain terms are defined as follows:

Average Winter Monthly Consumption (AWMC) shall mean the AWMC calculated for each customer by averaging the total potable water consumption used by the customer in the months of November through February in accordance with standard operating procedures maintained by Castle Rock Water. Annually, effective on the April 1 billing statement, the AWMC for each utility customer shall be recalculated and adjusted accordingly.

AWMC consumption tier 1 shall mean water use up to the individual account's AWMC. This tier represents the minimum water use necessary for indoor purposes.

Budget consumption tier 2 shall mean water use over an individual account's AWMC and up to the calculated monthly water budget. This tier represents an efficient volume of use for outdoor irrigation purposes.

Commercial shall mean commercial, industrial and nonconforming land use serving interior and exterior (outdoor/irrigation) water use from one service connection.

Commercial indoor use only shall mean commercial, industrial and nonconforming land use with interior water service provided by a single metered water service. Exterior water use is served by a dedicated, separately metered water service connection.

Excess consumption tier 3 shall mean water use over the total of an individual account's AWMC (indoor use) and the calculated monthly water budget (outdoor use). This tier targets inefficient volumes of use for outdoor purposes and discourages water waste.

Irrigated area cap shall mean the maximum irrigated square footage within the landscape that is allocated a water budget. This cap is applicable to single-family customers only.

Irrigation season budget shall mean the calculated monthly water allowance for the months of April 1 through October 31, which is based on landscaped area and ET (evapotranspiration) requirements.

Irrigation season excess shall mean the consumption for a meter-reading period during the months of April 1 through October 31 that exceeds the sum of the monthly AWMC and the monthly budget.

Landscape type shall mean the predominate type of irrigated vegetation in the irrigated area.

Multifamily shall mean master metered residential attached dwelling units, including apartments, condominiums, and mobile homes serving interior and exterior (outdoor/irrigation) water use from one (1) service connection.

Multifamily indoor use only shall mean master metered residential attached dwelling units, including apartments, condominiums and mobile homes, serving interior water use from one (1) service connection. Exterior (irrigation) water service is served by a dedicated separately metered water service connection.

Non-single-family customer shall mean all customers other than:

1.

One-family dwellings, under Section 17.08.130 of this Code; or

2.

Two-family dwellings under Section 17.08.140 of this Code.

Revenue stabilization reserve shall mean a cash reserve that can be drawn upon during revenue shortfalls resulting from lower-than-expected customer consumption.

Single-family customer shall mean a customer residing in a residence defined as a one-family dwelling under Section 17.08.130 of this Code, or a two-family dwelling under Section 17.08.140 of this Code.

Water budget shall mean tailored water use allocations developed for each customer with rates that increase as the allocation is exceeded.

1.

Water budget base rates shall be established to:

a.

Identify customer-specific monthly budgeted amounts of water that vary by landscaped area, landscape type, and monthly historical evapotranspiration (ET); and

b.

Charge volume rates per unit of water use that vary by consumption tier.

2.

A monthly water budget is equal to the AWMC and the calculated amount of water allocated to a customer based on that customer's landscaped area in square feet determined by the Town and eighty (80) percent of the monthly required watering needs for the landscape type per square foot of landscaped area based on the historical evapotranspiration rate in accordance with Castle Rock Water procedures. For single-family customers, the landscaped area is subject to an irrigated area cap of seven thousand (7,000) square feet for calculation of the water budget. The monthly irrigation requirements for the landscape type vary throughout the year; therefore, the monthly budgets will vary while the landscaped area is held constant. Customers are billed for the amount of water used each month in comparison to the monthly water budget. If a customer's water use exceeds the monthly budget, the amount billed per one thousand (1,000) gallons of water used increases for the amount over the budget.

3.

The water budget-based thresholds define the tiers of consumption for calculating an individual customer's monthly bill. The threshold represents the maximum usage in each consumption tier for which a customer will be billed a specific rate per one thousand (1,000) gallons of use.

4.

For all customers with irrigation, excluding irrigation-only customers, there are two (2) tier thresholds during the irrigation season: the AWMC and the monthly irrigation budget. There are three (3) consumption tiers for these customers: AWMC, budget and excess as defined in this Section. During the winter season, there is one (1) tier threshold, the AWMC; there are two (2) consumption tiers, AWMC and excess.

5.

For all customers: With indoor use only, there is one (1) tier threshold during both irrigation and winter seasons: AWMC. There are two (2) consumption tiers for these customers: AWMC and excess.

6.

Irrigation-only customers are subject to one (1) tier threshold during the irrigation season, which is the individual monthly irrigation budget. Irrigation customers are subject to two (2) consumption tiers during the irrigation season: budget and excess. During the winter season, there is one (1) consumption tier excess.

Water Budget-Based Tier Thresholds

Irrigation Season - April 1 through October 31 Consumption
Class	Tier 1 - AWMC	Tier 2 - Irrigation	Tier 3 - Excess
Residential	AWMC	Budget	Excess
Multi-family indoor use only	AWMC	N/A	Excess
Multi-family with irrigation	AWMC	Budget	Excess
Commercial indoor use only	AWMC	N/A	Excess
Commercial with irrigation	AWMC	Budget	Excess
Irrigation	N/A	Budget	Excess

 

Winter Season - November 1 through March 31 Consumption
Class	Tier 1 - AWMC	Tier 2 - Irrigation	Tier 3 - Excess
Residential	AWMC	N/A	Excess
Multi-family indoor use only	AWMC	N/A	Excess
Multi-family with irrigation	AWMC	N/A	Excess
Commercial indoor use only	AWMC	N/A	Excess
Commercial with irrigation	AWMC	N/A	Excess
Irrigation	N/A	N/A	Excess

 

Winter season excess shall mean the consumption for a reading period during the months of November 1 through March 31 that exceeds the monthly AWMC.

(Ord. No. 2018-031 , § 10, 9-18-2018; Ord. No. 2018-045 , § 1, 12-4-2018; Ord. No. 2017-027, § 10, 9-19-2017 ; Ord. No. 2016-030, § 8, 9-20-2016 ; Ord. No. 2014-31, § 7, 11-18-2014 ; Ord. 2010-34 § 2, 2010)