---
type: "Bill"
title: "Atmospheric Rivers: Research, Mitigation, and Climate Forecasting Program."
description: "Existing law establishes the Department of Water Resources and requires the department to implement various water conservation and flood control programs and projects in the state."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20152016"
identifier: "SB 758"
citation: "California SB 758 (20152016)"
classification: ["bill"]
subjects: ["Atmospheric Rivers: Research", "Mitigation", "and Climate Forecasting Program."]
status: "enacted"
primary_sponsors: ["Block"]
version_count: 9
action_count: 33
vote_count: 8
first_action: "2015-02-27"
last_action: "2015-10-09"
source: "openstates"
source_identifier: "ocd-bill/187a1f13-fa9b-4ef7-bb3d-7d63707df5ee"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB758"
source_hash: "56c490ad6937f8f42a69a32dfa01ddb4ca0ee6a0d4bfac3f30aed7292d040ce4"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California SB 758 (20152016) — Atmospheric Rivers: Research, Mitigation, and Climate Forecasting Program.

Existing law establishes the Department of Water Resources and requires the department to implement various water conservation and flood control programs and projects in the state.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **02/27/15 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75899INT)
2. **04/08/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75898AMD)
3. **04/21/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75897AMD)
4. **04/30/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75896AMD)
5. **06/02/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75895AMD)
6. **08/17/15 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75894AMD)
7. **10/09/15 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75892CHP)
8. **SB758** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB758)
9. **09/09/15 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB758&version=20150SB75893ENR)

## Votes

- Do pass as amended — **7–0** (pass) · upper
- Do pass. — **17–0** (pass) · lower
- Do pass and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **12–0** (pass) · lower
- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **8–0** (pass) · upper
- 3rd Reading — **38–0** (pass) · upper
- Placed on suspense file — **7–0** (pass) · upper
- SB 758 Block Senate Third Reading By WILLIAMS — **73–0** (pass) · lower
- Unfinished Business SB758 Block Concurrence — **35–5** (pass) · upper

## Sponsors

- Block — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2015-02-27** Introduced. To Com. on RLS. for assignment. To print. `introduction`
- **2015-03-02** From printer. May be acted upon on or after April 1.
- **2015-03-02** Read first time. `reading-1`
- **2015-03-19** Referred to Com. on E.Q. `referral-committee`
- **2015-03-27** Set for hearing April 15.
- **2015-04-06** April 15 set for first hearing canceled at the request of author.
- **2015-04-08** From committee with author's amendments. Read second time and amended. Re-referred to Com. on E.Q. `referral-committee, reading-2, amendment-passage, committee-passage, reading-1`
- **2015-04-09** Withdrawn from committee.
- **2015-04-09** Re-referred to Com. on RLS. `referral-committee`
- **2015-04-16** Re-referred to Com. on N.R. & W. `referral-committee`
- **2015-04-21** Set for hearing April 28.
- **2015-04-21** From committee with author's amendments. Read second time and amended. Re-referred to Com. on N.R. & W. `referral-committee, reading-2, amendment-passage, committee-passage, reading-1`
- **2015-04-29** From committee: Do pass as amended and re-refer to Com. on APPR. (Ayes 8. Noes 0. Page 821.) (April 28). `committee-passage-favorable, committee-passage, amendment-passage`
- **2015-04-30** Read second time and amended. Re-referred to Com. on APPR. `referral-committee, reading-2, amendment-passage, reading-1`
- **2015-05-05** Set for hearing May 11.
- **2015-05-11** May 11 hearing: Placed on APPR. suspense file.
- **2015-05-23** Set for hearing May 28.
- **2015-06-01** From committee: Do pass as amended. (Ayes 7. Noes 0. Page 1159.) (May 28). `committee-passage-favorable, committee-passage, amendment-passage`
- **2015-06-02** Read second time and amended. Ordered to third reading. `amendment-passage, reading-2, reading-1`
- **2015-06-03** Read third time. Passed. (Ayes 38. Noes 0. Page 1288.) Ordered to the Assembly. `reading-3, passage, reading-1`
- **2015-06-04** In Assembly. Read first time. Held at Desk. `reading-1`
- **2015-06-18** Referred to Com. on W., P., & W. `referral-committee`
- **2015-07-14** From committee: Do pass and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 12. Noes 0.) (July 14). Re-referred to Com. on APPR. `referral-committee, committee-passage-favorable, committee-passage`
- **2015-08-17** From committee with author's amendments. Read second time and amended. Re-referred to Com. on APPR. `referral-committee, reading-2, amendment-passage, committee-passage, reading-1`
- **2015-08-19** August 19 set for first hearing. Placed on APPR. suspense file.
- **2015-08-28** From committee: Do pass. (Ayes 17. Noes 0.) (August 27). `committee-passage-favorable, committee-passage`
- **2015-08-28** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2015-09-04** Read third time. Passed. (Ayes 73. Noes 0. Page 2926.) Ordered to the Senate. `reading-3, passage, reading-1`
- **2015-09-04** In Senate. Concurrence in Assembly amendments pending.
- **2015-09-08** Assembly amendments concurred in. (Ayes 35. Noes 5. Page 2565.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2015-09-11** Enrolled and presented to the Governor at 5 p.m.
- **2015-10-09** Approved by the Governor. `executive-signature`
- **2015-10-09** Chaptered by Secretary of State. Chapter 682, Statutes of 2015.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/187a1f13-fa9b-4ef7-bb3d-7d63707df5ee`. Confidence: reported (aggregated from official California legislature records).