---
type: "Bill"
title: "San Gabriel Basin Water Quality Authority Act."
description: "San Gabriel Basin Water Quality Authority Act."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "19992000"
identifier: "AB 2544"
citation: "California AB 2544 (19992000)"
classification: ["bill"]
subjects: ["San Gabriel Basin Water Quality Authority Act."]
status: "enacted"
primary_sponsors: ["Calderon"]
version_count: 10
action_count: 28
vote_count: 7
first_action: "2000-02-24"
last_action: "2000-09-29"
source: "openstates"
source_identifier: "ocd-bill/eacbbf29-5d8a-41ef-ad7e-260563da9de1"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB2544"
source_hash: "6391f5b0030c8f0bb9bc591e37bdf4f45f284352da2c8d8ff43b2f5fcfaf194a"
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 AB 2544 (19992000) — San Gabriel Basin Water Quality Authority Act.

## Version chain

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

1. **02/24/00 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254499INT)
2. **05/04/00 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254498AMD)
3. **05/17/00 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254497AMD)
4. **08/07/00 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254496AMD)
5. **08/14/00 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254495AMD)
6. **08/22/00 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254494AMD)
7. **08/25/00 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254493AMD)
8. **09/29/00 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254491CHP)
9. **AB2544** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=199920000AB2544)
10. **08/30/00 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=199920000AB2544&version=19990AB254492ENR)

## Votes

- Do pass as amended and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower
- AB 2544 CALDERON THIRD READING — **pass** (pass) · lower
- Do pass. — **pass** (pass) · lower
- Do pass as amended, and re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Committee amendments. — **pass** (pass) · upper
- Assembly 3rd Reading AB2544 Calderon By Solis — **pass** (pass) · upper
- AB 2544 CALDERON CONCURRENCE — **pass** (pass) · lower

## Sponsors

- Calderon — primary (person)
- Solis — coauthor (person)

## Timeline

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

- **2000-09-29** Chaptered by Secretary of State - Chapter 905, Statutes of 2000.
- **2000-09-29** Approved by the Governor. `executive-signature`
- **2000-09-13** Enrolled and to the Governor at 10 a.m.
- **2000-08-30** Senate amendments concurred in. To enrollment. (Ayes 67. Noes 6. Page 8737.) `committee-passage-favorable, amendment-passage`
- **2000-08-29** In Assembly. Concurrence in Senate amendments pending.
- **2000-08-29** Read third time, passed, and to Assembly. (Ayes 21. Noes 4. Page 6214.) `passage, reading-3, reading-1`
- **2000-08-28** Read second time. To third reading. `reading-2, reading-1`
- **2000-08-25** Read third time, amended. To second reading. `reading-3, amendment-passage, reading-1`
- **2000-08-22** From committee: Be placed on second reading file pursuant to Senate Rule 28.8 and be amended. Read second time, amended, and to third reading. `committee-passage, amendment-passage, reading-2, reading-1`
- **2000-08-14** Read second time, amended, and re-referred to Standing Committee on Appropriations. `amendment-passage, reading-2, reading-1, referral-committee`
- **2000-08-10** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 9. Noes 0.). `committee-passage, amendment-introduction, amendment-passage, referral-committee`
- **2000-08-07** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on ENV. QUAL. `amendment-introduction, amendment-passage, reading-2, reading-1, referral-committee`
- **2000-07-06** Joint Rule 61 (b)(12) suspended.
- **2000-07-03** In committee: Hearing postponed by committee.
- **2000-06-15** In committee: Hearing postponed by committee.
- **2000-06-08** Referred to Com. on ENV. QUAL. `referral-committee`
- **2000-06-01** In Senate. Read first time. To Standing Committee on Rules for assignment. `reading-1`
- **2000-05-31** Read third time, passed, and to Senate. (Ayes 63. Noes 8. Page 6831.) `passage, reading-3, reading-1`
- **2000-05-30** Passed on file.
- **2000-05-25** From committee: Do pass. (Ayes 18. Noes 1.) (May 24). Read second time. To third reading. `committee-passage, committee-passage-favorable, reading-2, reading-1`
- **2000-05-18** Re-referred to Standing Committee on Appropriations. `referral-committee`
- **2000-05-17** Read second time and amended. `amendment-passage, reading-2, reading-1`
- **2000-05-16** From committee: Amend, do pass as amended, and re-refer to Standing Committee on Appropriations (Ayes 9. Noes 0.) (May 9). `committee-passage, amendment-introduction, amendment-passage, referral-committee`
- **2000-05-08** Re-referred to Standing Committee on Environmental Safety and Toxic Materials. `referral-committee`
- **2000-05-04** Referred to Standing Committee on Environmental Safety and Toxic Materials From committee chair, with author's amendments: Amend, and re-refer to Standing Committee on Environmental Safety and Toxic Materials Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1, referral-committee`
- **2000-04-04** Read second time. To third reading. `reading-2, reading-1`
- **2000-02-26** From printer. May be heard in committee March 27.
- **2000-02-24** Read first time. To print. `reading-1`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/eacbbf29-5d8a-41ef-ad7e-260563da9de1`. Confidence: reported (aggregated from official California legislature records).