Prepared by Lisa Cuellar, May 10, 2023
Check out these slides from CalWEP's Framework 101 webinar with more information.
On Monday, May 8th, the California Department of Water Resources (DWR) announced that they will provide urban suppliers with commercial, industrial, and institutional parcel landscape areas measurements (CII-LAM), including delineation of functional and non-functional turf areas, as part of a Land Use Classification Dataset through a partnership with NV5 Geospatial (NV5). Aerial imagery from 2020 will be used to generate the data.
DWR expects to receive portions of the data beginning fall of 2023 with “analysis of additional portions” provided monthly through the summer of 2026. You might be asking, “So what’s included in the dataset?” While information is limited, CalWEP has summarized what urban suppliers can expect to receive and how it relates to both the Urban Water Use Objective and the most recent drought emergency regulations that prohibit irrigation of non-functional turf with potable water on CII accounts.
The following table provides a summary of what urban water suppliers can expect to receive as part of the complete CII-LAM Land Use Classification Dataset:
|
Data |
Description |
Standard/ Regulation |
|
CII Landscape Area Measurements:
|
Individual landscape feature polygons (Source: 2020, 1-ft., 4-band imagery). Allows water agencies to align landscape features with MUMs, DIMs, or other necessary boundary conditions. (Source: 2020, 1-ft., 4-band imagery) |
CII-DIM Standard and Performance Measures Drought Emergency Regulations (CCR Section 996)
|
|
CII Parkway Strips |
(Source: 2020, 1-ft., 4-band imagery) |
CII-DIM Standard and Performance Measures
|
|
Residential Parkway Strips |
Landscape area for residential properties that could be irrigated by residential landowners that fall outside their property lines (Source: 2018 imagery for most suppliers, 2020 imagery for 20 suppliers) |
Outdoor Residential Water Use Objective (ORWUO) |