Commercial, Industrial, Institutional Standard and Performance Measures

The Basics

  • The commercial, industrial, and institutional (CII) landscape standard applies to Commercial, Industrial, and Institutional dedicated irrigation metered accounts only. 
  • Similar to the outdoor residential standard, the CII landscape standard uses concepts like evapotranspiration, irrigation efficiency and landscape area to calculate a water use budget for a supplier’s total CII dedicated irrigation accounts.
  • Unlike the outdoor residential standard, it is the responsibility of the water suppliers to map the landscape area of their dedicated irrigation accounts.  The total landscape area will then be incorporated into a landscape water use equation/standard (provided by DWR) to produce a supplier level CII landscape budget in gallons.
  • The state will not enforce CII landscape budgets for individual parcels/customers.
  • Other CII water use is not subject to volumetric standards (like breweries, salons, and laundries) and will be addressed through yet to be determined performance standards.


August 2021

The Urban Water Use Objective shall include the aggregate estimated efficient outdoor irrigation of landscape areas with dedicated irrigation meters or equivalent technology in connection with CII water use.

Dedicated Irrigation Meters

DWR is requesting information to inform a threshold to determine which dedicated irrigation meters should be included in the regulation and not - could be based on size, volume, etc.

Option 1: Acreage Option 2: Volume Option 3: Behavior

A DIM or equivalent technology is required for existing landscape areas that are of:

  • 10,000 square feet or greater if DIM is used
  • 5,000 square feet or greater if an equivalent technology is used

A DIM or equivalent technology is required for existing landscape areas with the equivalent Maximum Allowed Water Allowance (MAWA) water budget for potable water irrigation under local climate conditions and consistent with MWELO exceeding the volume for:

  • Irrigating 10,000 square feet of turf if a DIM is used
  • Irrigating 10,000 square feet of turf if an equivalent technology is used

A DIM is required for existing landscape areas that meet the threshold in Options 2 that consistently uses more than 140% of the applicable MAWA water budget.

(Note Option 1 is less compatible due to the focus on acreage but not volume)


CII Classification

DWR must provide “Recommendation for a CII water use classification system for CA that address significant uses of water.” (CWC Section 10609.10 (b) (1)

DWR has proposed a classification system for CII accounts for a standardized method statewide and is looking for feedback. ACWA has submitted a recommended classification system to DWR. A summary of these options is presented in the table below:

Option 1: Water-Centric/Water Use-Focused Option 2: Building on Existing System Option 3: Ramping up Implementation

Category Total: 17 + 1 (dedicated irrigation meter)

  • Based on Task Force and WRF Kiefter, and other considerations (e.g. Mitchell Whitepaper)

Category: 18 + 1 (dedicated irrigation meter)

  • Based on EPA's EnergyStary Property Classification System (not including voluntary, public facing benchmarking tool in the Portfolio Manager)

Category: 3 + 1 (dedicated irrigation meter)

  • Based on ACWA June recommendations


Timeline of events

  • Ongoing with DWR:
    • Threshold for mixed use meter conversion
    • Classification System
  • May 17 – DWR White Paper on BMPs
Share This

Share This

Share this post with your friends!