republic-os/legislation/us/states/ca/20152016/sb-664.md

---
type: "Bill"
title: "Water: urban water management planning."
description: "Existing law, the Urban Water Management Planning Act, requires every urban water supplier to prepare and adopt an urban water management plan for submission to the Department of Water Resources and other entities that includes specified content, including an urban water shortage contingency analysis. Existing law requires this analysis to include actions to be undertaken by the urban water supplier to prepare for, and implement during, a catastrophic interruption of water supplies, including an earthquake. Existing law requires an urban water supplier to update its plan at least once every 5 years on or before December 31, in years ending in 5 and 0, except that the 2015 plan is required to be updated and submitted to the department by July 1, 2016."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20152016"
identifier: "SB 664"
citation: "California SB 664 (20152016)"
classification: ["bill"]
subjects: ["Water: urban water management planning."]
status: "enacted"
primary_sponsors: ["Hertzberg"]
version_count: 8
action_count: 28
vote_count: 8
first_action: "2015-02-27"
last_action: "2015-10-09"
source: "openstates"
source_identifier: "ocd-bill/973f9b0f-e90f-483d-923b-d3245fdb5333"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB664"
source_hash: "e4d907f9890634f249527d6af7adc6997c5ace2689a08d2e13e0a28b8d605b4e"
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 664 (20152016) — Water: urban water management planning.

Existing law, the Urban Water Management Planning Act, requires every urban water supplier to prepare and adopt an urban water management plan for submission to the Department of Water Resources and other entities that includes specified content, including an urban water shortage contingency analysis. Existing law requires this analysis to include actions to be undertaken by the urban water supplier to prepare for, and implement during, a catastrophic interruption of water supplies, including an earthquake. Existing law requires an urban water supplier to update its plan at least once every 5 years on or before December 31, in years ending in 5 and 0, except that the 2015 plan is required to be updated and submitted to the department by July 1, 2016.

## 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=201520160SB664&version=20150SB66499INT)
2. **04/06/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66498AMD)
3. **04/30/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66497AMD)
4. **06/02/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66496AMD)
5. **06/24/15 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66495AMD)
6. **10/09/15 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66493CHP)
7. **SB664** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB664)
8. **09/03/15 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB664&version=20150SB66494ENR)

## Votes

- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **8–0** (pass) · upper
- Placed on suspense file — **7–0** (pass) · upper
- Unfinished Business SB664 Hertzberg Concurrence — **40–0** (pass) · upper
- Do pass as amended — **7–0** (pass) · upper
- Do pass and be re-referred to the Committee on [Appropriations] — **13–2** (pass) · lower
- Do pass. — **16–1** (pass) · lower
- SB 664 Hertzberg Senate Third Reading By LEVINE — **71–9** (pass) · lower
- 3rd Reading — **40–0** (pass) · upper

## Sponsors

- Hertzberg — primary (person)
- Campos — coauthor (person)
- Hill — coauthor (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`
- **2015-03-12** Referred to Com. on RLS. `referral-committee`
- **2015-04-06** From committee with author's amendments. Read second time and amended. Re-referred to Com. on RLS. `referral-committee, reading-2, amendment-passage, committee-passage, reading-1`
- **2015-04-16** Re-referred to Com. on N.R. & W. `referral-committee`
- **2015-04-21** Set for hearing April 28.
- **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 1158.) (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 40. Noes 0. Page 1305.) 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`
- **2015-06-24** From committee with author's amendments. Read second time and amended. Re-referred to Com. on W., P., & W. `referral-committee, reading-2, amendment-passage, committee-passage, reading-1`
- **2015-06-30** From committee: Do pass and re-refer to Com. on APPR. (Ayes 13. Noes 2.) (June 30). Re-referred to Com. on APPR. `referral-committee, committee-passage-favorable, committee-passage`
- **2015-07-15** July 15 set for first hearing. Placed on APPR. suspense file.
- **2015-08-28** From committee: Do pass. (Ayes 16. Noes 1.) (August 27). `committee-passage-favorable, committee-passage`
- **2015-08-31** Read second time. Ordered to third reading. `reading-2, reading-1`
- **2015-09-01** Read third time. Passed. (Ayes 71. Noes 9. Page 2725.) Ordered to the Senate. `reading-3, passage, reading-1`
- **2015-09-01** In Senate. Concurrence in Assembly amendments pending.
- **2015-09-02** Assembly amendments concurred in. (Ayes 40. Noes 0. Page 2424.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage`
- **2015-09-08** Enrolled and presented to the Governor at 4:30 p.m.
- **2015-10-09** Approved by the Governor. `executive-signature`
- **2015-10-09** Chaptered by Secretary of State. Chapter 681, Statutes of 2015.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/973f9b0f-e90f-483d-923b-d3245fdb5333`. Confidence: reported (aggregated from official California legislature records).