Cal. Pub. Res. Code § 75050.2

(a) The state board shall develop project selection and evaluation guidelines for the allocation of funds made available pursuant to subdivision (m) of Section 75050. Upon appropriation, the funds shall be available for matching grants to local public agencies, not to exceed five million dollars ($5,000,000) per project, for projects to achieve any of the following purposes in accordance with the requirements of that subdivision:
1. (1) Complying with total maximum daily load requirements established pursuant to Section 303(d) of the Clean Water Act (33 U.S.C. Sec. 1313(d)) and this division where pollutant loads have been allocated to stormwater, including, but not limited to, metals, pathogens, and trash pollutants.
2. (2) Assistance in implementing low-impact development and other onsite and regional practices, on public and private lands, that seek to maintain predevelopment hydrology for existing and new development and redevelopment projects. Projects funded pursuant to this paragraph shall be designed to infiltrate, filter, store, evaporate, or retain runoff in close proximity to the source of water.
3. (3) Implementing treatment and source control practices to meet design and performance standard requirements for new development.
4. (4) Treating and recycling stormwater discharge.
5. (5) Implementing improvements to combined municipal sewer and stormwater systems.
6. (6) Implementing best management practices, and other measures, required by municipal stormwater permits issued by a California regional water quality control board or the state board.
7. (7) Assessing project effectiveness, including, but not limited to, monitoring receiving water quality, determining pollutant load reductions, and assessing improvements in stormwater discharge water quality.
(b)
1. (1) For the purpose of implementing subdivision (a), the state board shall give preference to a project that does one or more of the following:
  1. (A) Supports sustained, long-term water quality improvements.
  2. (B) Is coordinated or consistent with any applicable integrated regional water management plan.
2. (2) The allocation of funds pursuant to this section shall be consistent with water quality control plans and Section 75072.
(c) The state board shall require grant recipients for projects described in subdivision (a) to assess and report on project effectiveness, which may include monitoring receiving water quality, determining pollutant load reductions, and assessing improvements in stormwater discharge water quality resulting from project implementation.