Cal. WAT § 10561.5
This is the official text of Cal. WAT § 10561.5, part of California’s Water Code — governs water rights and water resource management.
Not legal advice. This page reproduces the official text of a government statute for reference only. Laws change, and how a statute applies depends on your specific facts. For advice about your situation, consult a licensed attorney in your state.
Official statutory text
Solely for the purposes of this part, and unless the context otherwise requires, the following definitions govern the construction of this part:
(a) “Dry weather runoff” means surface waterflow and waterflow in storm drains, flood control channels, or other means of runoff conveyance produced by nonstormwater resulting from irrigation, residential, commercial, and industrial activities.
(b) “Stormwater” means temporary surface water runoff and drainage generated by immediately preceding storms. This definition shall be interpreted consistent with the definition of “stormwater” in Section 122.26 of Title 40 of the Code of Federal Regulations.
(a) “Dry weather runoff” means surface waterflow and waterflow in storm drains, flood control channels, or other means of runoff conveyance produced by nonstormwater resulting from irrigation, residential, commercial, and industrial activities.
(b) “Stormwater” means temporary surface water runoff and drainage generated by immediately preceding storms. This definition shall be interpreted consistent with the definition of “stormwater” in Section 122.26 of Title 40 of the Code of Federal Regulations.
Status: in_force · Read it on the official government site
Need a lawyer in California?
Find a California lawyer
About this page: Statute text is reproduced from official government publishers via the
Open US Law dataset
(Vaquill AI, snapshot v2026.08, CC BY 4.0). Primary legislative text like this is public domain under the government-edicts doctrine
(Georgia v. Public.Resource.Org, 2020). We link every section back to its official source so you can verify it independently.