--- type: "Bill" title: "Groundwater." description: "Existing law, the Sustainable Groundwater Management Act, requires all groundwater basins designated as high- or medium-priority basins by the Department of Water Resources that are designated as basins subject to critical conditions of overdraft to be managed under a groundwater sustainability plan or coordinated groundwater sustainability plans by January 31, 2020, and requires all other groundwater basins designated as high- or medium-priority basins to be managed under a groundwater sustainability plan or coordinated groundwater sustainability plans by January 31, 2022, except as specified. The act authorizes the State Water Resources Control Board to designate a basin as a probationary basin if the state board makes a certain determination and to develop an interim plan for the probationary basin. The act requires a local agency or groundwater sustainability agency to have 90 or 180 days, as prescribed, to remedy the deficiency if the board designates the basin as a probationary basin." jurisdiction: "us/states/ca" legislature: "California Legislature" session: "20152016" identifier: "SB 13" citation: "California SB 13 (20152016)" classification: ["bill"] subjects: ["Groundwater."] status: "enacted" primary_sponsors: ["Pavley"] version_count: 9 action_count: 28 vote_count: 6 first_action: "2014-12-01" last_action: "2015-09-03" source: "openstates" source_identifier: "ocd-bill/4a7e7703-038f-4716-9116-1233c0f8469a" source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB13" source_hash: "19b224e58a4f6d600c976883b4e6725bde18002839215e95d248743c76977fca" 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 13 (20152016) — Groundwater. Existing law, the Sustainable Groundwater Management Act, requires all groundwater basins designated as high- or medium-priority basins by the Department of Water Resources that are designated as basins subject to critical conditions of overdraft to be managed under a groundwater sustainability plan or coordinated groundwater sustainability plans by January 31, 2020, and requires all other groundwater basins designated as high- or medium-priority basins to be managed under a groundwater sustainability plan or coordinated groundwater sustainability plans by January 31, 2022, except as specified. The act authorizes the State Water Resources Control Board to designate a basin as a probationary basin if the state board makes a certain determination and to develop an interim plan for the probationary basin. The act requires a local agency or groundwater sustainability agency to have 90 or 180 days, as prescribed, to remedy the deficiency if the board designates the basin as a probationary basin. ## Version chain The bill's text revisions, in order — the diff chain from filing to enrollment. 1. **12/01/14 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1399INT) 2. **02/24/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1398AMD) 3. **04/23/15 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1397AMD) 4. **05/21/15 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1396AMD) 5. **06/24/15 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1395AMD) 6. **07/06/15 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1394AMD) 7. **09/03/15 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1392CHP) 8. **SB13** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201520160SB13) 9. **08/27/15 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201520160SB13&version=20150SB1393ENR) ## Votes - 3rd Reading — **36–0** (pass) · upper - Do pass. To Consent Calendar. — **16–0** (pass) · lower - Special Consent #7 — **40–0** (pass) · upper - SB 13 Pavley Consent Calendar Second Day — **79–0** (pass) · lower - Do pass, but first be re-referred to the Committee on [Appropriations] — **8–1** (pass) · upper - Do pass as amended, and be re-referred to the Committee on [Appropriations] with recommendation: To Consent Calendar — **15–0** (pass) · lower ## Sponsors - Pavley — primary (person) ## Timeline The legislative action history — every referral, reading, and vote. - **2014-12-01** Introduced. Read first time. To Com. on RLS. for assignment. To print. `introduction, reading-1` - **2014-12-02** From printer. May be acted upon on or after January 1. - **2015-01-15** Referred to Com. on N.R. & W. `referral-committee` - **2015-02-24** 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` - **2015-03-17** Set for hearing March 24. - **2015-03-24** From committee: Do pass and re-refer to Com. on APPR. (Ayes 8. Noes 1. Page 405.) (March 24). Re-referred to Com. on APPR. `referral-committee, committee-passage-favorable, committee-passage` - **2015-04-02** Set for hearing April 13. - **2015-04-13** From committee: Be ordered to second reading pursuant to Senate Rule 28.8. `committee-passage, reading-2` - **2015-04-14** Read second time. Ordered to third reading. `reading-2, reading-1` - **2015-04-23** Read third time and amended. `reading-3, amendment-passage, reading-1` - **2015-04-23** Ordered to second reading. - **2015-04-27** Read second time. Ordered to third reading. `reading-2, reading-1` - **2015-04-30** Read third time. Passed. (Ayes 36. Noes 0. Page 837.) Ordered to the Assembly. `reading-3, passage, reading-1` - **2015-04-30** In Assembly. Read first time. Held at Desk. `reading-1` - **2015-05-14** Referred to Com. on W., P., & W. `referral-committee` - **2015-05-21** 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` - **2015-06-24** 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` - **2015-07-02** From committee: Do pass as amended and re-refer to Com. on APPR. with recommendation: To consent calendar. (Ayes 15. Noes 0.) (June 30). `committee-passage-favorable, committee-passage, amendment-passage` - **2015-07-06** Read second time and amended. Re-referred to Com. on APPR. `referral-committee, reading-2, amendment-passage, reading-1` - **2015-07-15** From committee: Do pass. Ordered to consent calendar. (Ayes 16. Noes 0.) (July 15). `committee-passage-favorable, committee-passage` - **2015-07-16** Read second time. Ordered to consent calendar. `reading-2, reading-1` - **2015-08-20** Read third time. Passed. (Ayes 79. Noes 0. Page 2534.) Ordered to the Senate. `reading-3, passage, reading-1` - **2015-08-20** In Senate. Concurrence in Assembly amendments pending. - **2015-08-25** Ordered to special consent calendar. - **2015-08-27** Assembly amendments concurred in. (Ayes 40. Noes 0. Page 2204.) Ordered to engrossing and enrolling. `committee-passage-favorable, amendment-passage` - **2015-08-28** Enrolled and presented to the Governor at 3:45 p.m. - **2015-09-03** Approved by the Governor. `executive-signature` - **2015-09-03** Chaptered by Secretary of State. Chapter 255, Statutes of 2015. ## Source OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/4a7e7703-038f-4716-9116-1233c0f8469a`. Confidence: reported (aggregated from official California legislature records).