California tracks its water use across three broad categories: urban, agricultural, and environmental. This framing reflects how water is allocated to daily city needs, food production, and the health of natural ecosystems. Urban water use covers what’s drawn for households, businesses, schools, and public services—everything that sustains city living. Agricultural use is the large portion dedicated to irrigation for farms, orchards, and ranches. Environmental use accounts for the water reserved to maintain river and habitat health, support fisheries, and meet environmental laws and obligations. Other groupings don’t fit as the primary categories in standard practice. Rural use isn’t treated as its own major category, and industrial demand is usually considered part of urban use or a subcategory of it. Because protecting environmental flows is a distinct, essential need in California, including environmental as a category best represents the real allocation framework.