Michelle Walden (Alameda County Water District)
43885 South Grimmer Boulevard
(510) 668-4454510-668-4454
michelle.walden@acwd.com

SINGLE

Alameda County Water District

For over 100 years, Alameda County Water District (ACWD) has managed the groundwater of the Niles Cone Groundwater Basin through programs that protect and improve water supplies for all groundwater users and the environment. Per SGMA, Sustainable Groundwater Management means the management and use of groundwater in a manner that can be maintained during the planning and implementation horizon without causing undesirable results. SGMA defines undesirable results as chronic lowering of groundwater levels, reduction of groundwater storage, seawater intrusion, degraded water quality, land subsidence, and depletions of interconnected surface water. ACWD has in place an existing plan developed pursuant to laws authorizing groundwater management, specifically the County Water District Law (Water Code § 30000 et seq.), the Replenishment Assessment Act of the Alameda County Water District (Chapter 1942 of the Statutes of 1961, as amended in 1970 and 1974), and the Alameda County Water District Groundwater Protection Act (§ 31142.20 et seq.). Under these laws, ACWD has a number of planning and operational documents and policys under which ACWD manages the Niles Cone Subbasin 2-09.01 (Niles Cone). As early as 1920, ACWD began to impound winter flows in Alameda Creek to increase groundwater recharge in the Niles Cone; and since 1962, ACWD has been engaged in a continuous water replenishment/recharge program in order to sustainably manage the quality and quantity of the water of the Niles Cone. In addition, ACWD has an analysis of basin conditions that demonstrates the Niles Cone has operated within its sustainable yield over a period of at least 10 years. ACWDs annual Survey Report on Groundwater Conditions and Groundwater Monitoring Report support this analysis. On December 8, 2016, ACWDs Board of Directors adopted Resolution No. 16-075 authorizing the submittal of an Alternative to a Groundwater Sustainability Plan for Niles Cone Subbasin 2-09.01. ACWDs Alternative to a Groundwater Sustainability Plan (Alternative to a GSP) preserves and continues the successful sustainable groundwater management already being performed by ACWD. This would be accomplished by continuing groundwater management under pre-existing authority by which the District carries out groundwater management efforts within Niles Cone Subbasin 2-09.01, in addition to the authorities of a Groundwater Sustainability Agency under SGMA. ACWDs Alternative to a GSP submittal will also include an explanation of how the Alternative to a GSP is functionally equivalent to elements of a Groundwater Sustainability Plan and achieves the objectives of SGMA. ACWD has provided the December 8, 2016, Board of Directors meeting agenda, staff report, presentation materials, and Resolution No. 16-075. The Board of Directors meeting minutes are not available until after the submission is due. Additional information, including public outreach for the Replenishment Assessment, is also provided in the Alternative Elements Guide, Section 354.10, Notice and Communication.

December 8, 2016, Board of Director's Meeting Agenda.pdf (27.2kB) Uploaded on 12/31/2016 at 02:16PM Staff Report, Action Calendar Items December 8, 2016.pdf (25.9kB) Uploaded on 12/31/2016 at 02:17PM 5.6 SGMA Alternative Presentation Dec 8, 2016.pdf (2.9MB) Uploaded on 12/31/2016 at 02:17PM Resolution No. 16-075 Authorizing Submittal of an Alternative to a GSP.pdf (162.9kB) Uploaded on 12/31/2016 at 02:17PM

Yes - Existing GSA

Alameda County Water District

2-009.01 SANTA CLARA VALLEY NILES CONE

A plan developed pursuant to Part 2.75 (commencing with Section §10750) or other law authorizing groundwater management.

Alameda County Water District (ACWD) manages the Niles Cone Subbasin 2-09.01 (Niles Cone) pursuant to its statutory authority under County Water District Law (Water Code §30000 et seq.), the Replenishment Assessment Act of Alameda County Water District (Chapter 1942 of the Statutes of 1961, as amended in 1970 and 1974), and the Alameda County Water District Groundwater Protection Act (§ 31142.20 et seq.). Under these laws, ACWD has a number of planning and operational documents and policys under which ACWD manages the Niles Cone. However, there are three documents which are considered to be core to the sustainable management of the Niles Cone. These core documents are the: (1) the Groundwater Management Policy (Policy), which was adopted in 1989, and last amended in 2001; (2) the annual Survey Report on Groundwater Conditions; and (3) the annual Groundwater Monitoring Report. The programs under the Policy include water supply management, groundwater replenishment, watershed protection and monitoring, groundwater basin monitoring, wellhead protection, aquifer reclamation, groundwater protection, and well ordinance administration. The purpose of which is to protect and improve groundwater resources for the benefit for all users of the groundwater basin and the environment by taking actions designed to meet the following objectives, as identified in the Policy: 1) Increase groundwater replenishment capability; 2) Increase the usable storage capacity of the groundwater basin; 3) Operate the basin to provide: A) A reliable water supply to meet baseload and peak distribution system demands, B) An emergency source of supply, and 3) Reserve storage to augment dry year supplies; 4) Protect groundwater quality from degradation from any and all sources including: saline water intrusion, wastewater discharges, recycled water use, urban and agricultural runoff, or chemical contamination; 5) Improve groundwater quality by: A) Removing salts and other contaminants from affected areas of the basin, and B) Improving the water quality of source water used for groundwater recharge. Since ACWD has been monitoring the Niles Cone since its formation in 1914, a variety of monitoring programs have been implemented and modified over time due to historical groundwater management needs, specific related studies, compliance with water rights reporting, and direction of the ACWD Board of Directors. ACWDs annual Groundwater Monitoring Report provides information collected during the Spring/Fall Groundwater Monitoring Programs, which includes water elevation data, groundwater quality data, and a description of the movement of groundwater and trends. ACWD prepares an annual Survey Report on Groundwater Conditions which summarizes the total well production, estimated recharge, and changes in groundwater storage for the period of reporting and includes forecasts for the various categories of groundwater pumping for the following year. It also includes a recommendation for the amount of supplemental water to be purchased in order to maintain basin water levels, which is presented to the Board of Directors. ACWDs groundwater management programs and activities have ensured adequate pressurization of aquifers, importation of purchased water when needed to supplement local water, basin-wide monitoring, mitigation of legacy saltwater intrusion, metering and administration of a replenishment assessment program as part of a basin management framework which has resulted in the operation and sustainable management of Niles Cone within its sustainable yield over the last five decades, including the most recent 10-year period from 2005-2015, as provided in the enclosed Niles Cone Sustainable Yield 10-Year Analysis. The last 10 Survey Reports on Groundwater Conditions have also been included. Additional documents and information about management of the Niles Cone is included in the Alternative Elements Guide and corresponding enclosed documents.

County Water District Law (California Water Code Section 30000 et seq).pdf (127.4kB) Uploaded on 12/31/2016 at 02:38PM Replenishment Assessment Act of the ACWD.pdf (281.1kB) Uploaded on 12/31/2016 at 02:39PM ACWD Groundwater Protection Act.pdf (32.6kB) Uploaded on 12/31/2016 at 02:39PM ACWD Groundwater Management Policy (2001).pdf (952.7kB) Uploaded on 12/31/2016 at 02:39PM ACWD Groundwater Monitoring Report 2015.pdf (4.5MB) Uploaded on 12/31/2016 at 02:39PM Survey_Report_on_Groundwater_Conditions_February_2007.pdf (49MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2008.pdf (2.3MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2009.pdf (3.7MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2010.pdf (5.5MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2011.pdf (5.6MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2012.pdf (4.3MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2013.pdf (3.9MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2014.pdf (1.5MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2015.pdf (3.6MB) Uploaded on 12/31/2016 at 02:42PM Survey_Report_on_Groundwater_Conditions_February_2016.pdf (2.9MB) Uploaded on 12/31/2016 at 02:42PM Niles Cone Sustainable Yield 10-Year Analysis (2016).pdf (3.3MB) Uploaded on 12/31/2016 at 02:42PM

For over 100 years, Alameda County Water District (ACWD) has managed the groundwater of the Niles Cone Groundwater Basin through programs that protect and improve water supplies for all groundwater users and the environment. ACWD is identified in the Sustainable Groundwater Management Act (SGMA) as an agency created by statute to manage groundwater and deemed to be the exclusive local agency within its statutory boundaries with powers to comply with SGMA. In March 2016, ACWD submitted a Basin Boundary Modification Request to correct the northern boundary of the Niles Cone Subbasin 2-09.01 (Niles Cone), which was subsequently approved, as modified by DWR on July 1, 2016. DWR published the Final Basin Boundary Modification in October 2016. At the November 10, 2016, Board of Directors meeting, the Board adopted Resolution No. 16-069 deciding to become the Groundwater Sustainability Agency (GSA) for Niles Cone Subbasin 2-09.01. As an exclusive agency and a GSA, the District is required to submit an Alternative to a Groundwater Sustainability Plan (Alternative) or a Groundwater Sustainability Plan for the management of the Niles Cone Subbasin 2-09.01 under SGMA. ACWDs geographic area encompasses approximately 105 square miles. ACWDs groundwater statutory service area includes the City of Fremont, the City of Union City, the City of Newark, and the southern portion of the City of Hayward. ACWD also has groundwater protection authority throughout the entirety of the cities of Fremont, Newark, and Union City beyond the Niles Cone Subbasin 2-09.01, which extends west into the San Francisco Bay and east into the Diablo Range. This includes taking measurements, collecting data, including samples of groundwater and an assessment of well pumping and the use of groundwater. On December 8, 2016, ACWDs Board of Directors adopted Resolution No. 16-075 authorizing the submittal of an Alternative to a Groundwater Sustainability Plan for Niles Cone Subbasin 2-09.01. An Alternative to a Groundwater Sustainability Plan preserves and continues the successful sustainable groundwater management already being performed by the District. This would be accomplished by continuing groundwater management under pre-existing authority by which the District carries out groundwater management efforts within Niles Cone Subbasin 2-09.01, in addition to the authorities of a GSA under SGMA.

Resolution No. 16-069 Deciding to become the GSA for the Niles Cone Subbasin2-09.01.pdf (692.9kB) Uploaded on 12/31/2016 at 02:51PM Resolution No. 16-075 Authorizing Submittal of an Alternative to a GSP.pdf (162.9kB) Uploaded on 12/31/2016 at 02:51PM

ACWD is identified as the CASGEM monitoring entity by DWR for Niles Cone Subbasin 2-09.01.

CEQA Filing Alternative 12.13.16.pdf (392.2kB) Uploaded on 12/31/2016 at 02:52PM Environmental_Information_Form_.pdf (37.6kB) Uploaded on 12/31/2016 at 02:52PM

City of Union City General Plan - LandUse Text February 2002.pdf (1.3MB) Uploaded on 12/31/2016 at 05:19PM Department of Conservation Geologic Map San Francisco-San Jose Quadrangle 1991.pdf (17.6MB) Uploaded on 12/31/2016 at 05:19PM DWR Bulletin 81 Intrusion of Salt Water Into Groundwater Basins of Southern Alameda County (1960).pdf (11.6MB) Uploaded on 12/31/2016 at 05:19PM DWR Bulletin 118 Written Text Niles Cone Subbasin 2-09.01 (2003).pdf (31.3kB) Uploaded on 12/31/2016 at 05:19PM Alternative_Elements_Guide ACWD.pdf (434.1kB) Uploaded on 12/31/2016 at 05:48PM ACWD Ordinance 2010-01.pdf (887.1kB) Uploaded on 12/31/2016 at 06:20PM 354.4b-List of References and Technical Studies.pdf (15.7kB) Uploaded on 12/31/2016 at 05:05PM A Comprehensive Groundwater Protection Evaluation for South San Francisco Bay Basins (2003).pdf (31.4MB) Uploaded on 12/31/2016 at 05:05PM ACWD 25-Year Capital Improvement Program FY2011-12~FY2035-36 (June 2011).pdf (2.1MB) Uploaded on 12/31/2016 at 05:05PM ACWD 2015 Water Rights Progress Reports.pdf (12.8MB) Uploaded on 12/31/2016 at 05:05PM ACWD Adopted Budget 2015~2017 (June 2015).pdf (3.7MB) Uploaded on 12/31/2016 at 05:05PM ACWD Amended Budget Fiscal Year 2016-17 (June 2016).pdf (803.1kB) Uploaded on 12/31/2016 at 05:05PM ACWD CASGEM Monitoring Plan (2011).pdf (801kB) Uploaded on 12/31/2016 at 05:05PM ACWD Decision to Become the GSA for Niles Cone Subbasin 2-09.01.pdf (10.1MB) Uploaded on 12/31/2016 at 05:05PM ACWD Groundwater Management Policy (2001).pdf (952.7kB) Uploaded on 12/31/2016 at 05:06PM ACWD Groundwater Monitoring Report 2015.pdf (4.5MB) Uploaded on 12/31/2016 at 05:06PM ACWD Groundwater Protection Act.pdf (32.6kB) Uploaded on 12/31/2016 at 05:06PM ACWD Integrated Groundwater Surface Water Model-James M Montgomery (1991).pdf (6.2MB) Uploaded on 12/31/2016 at 05:06PM ACWD Integrated Resources Planning Study 10 Year Review (2006).pdf (625.9kB) Uploaded on 12/31/2016 at 05:06PM ACWD Integrated Resources Planning Study 1995.pdf (6.5MB) Uploaded on 12/31/2016 at 05:06PM DWR Bulletin 118-1 Evaluation of GW Resources South Bay Appendix A (1967).pdf (69.9MB) Uploaded on 12/31/2016 at 05:20PM DWR Bulletin 118-1 Fremont Study Area Volume 1 (1968).pdf (5.7MB) Uploaded on 12/31/2016 at 05:20PM DWR Bulletin 118-1 Fremont Study Area Volume 2 (1973).pdf (16.6MB) Uploaded on 12/31/2016 at 05:20PM Executive Summary.pdf (413.6kB) Uploaded on 12/31/2016 at 05:20PM G1 Explanation of Existing Sustainable Groundwater Management (2016).pdf (46.2kB) Uploaded on 12/31/2016 at 05:20PM Groundwater Monitoring Conducted by ACWD Summary Table.pdf (24.3kB) Uploaded on 12/31/2016 at 05:20PM Luhdorff and Scalmanini East Bay Plain Aquifer Test Project (2003).pdf (6.7MB) Uploaded on 12/31/2016 at 05:20PM Next Steps.pdf (24.4kB) Uploaded on 12/31/2016 at 05:20PM Niles Cone and Local Agencies 354.8(a)(1)(2)(3).pdf (496.9kB) Uploaded on 12/31/2016 at 05:20PM Niles Cone Saltwater Intrusion and Aquifer Characterization Project (CIP FY 15-17).pdf (1,018.3kB) Uploaded on 12/31/2016 at 05:20PM Niles Cone Sustainable Yield 10-Year Analysis (2016).pdf (3.3MB) Uploaded on 12/31/2016 at 05:20PM Part I Hydrogeologic Conceptual Model (2016).pdf (740.9kB) Uploaded on 12/31/2016 at 05:20PM Replenishment Assessment Act of the ACWD.pdf (281.1kB) Uploaded on 12/31/2016 at 05:21PM San Francisco Bay Basin Water Quality Control Plan.pdf (66.6MB) Uploaded on 12/31/2016 at 05:21PM Section 354.6 (b) ACWD Organization Chart.pdf (95.1kB) Uploaded on 12/31/2016 at 05:22PM Section 354.10 Notice of Communication.pdf (36.2MB) Uploaded on 12/31/2016 at 05:22PM SF Basin Plan Table_2-02 Existing and Potential Beneficial Uses of Groundwater.pdf (33.1kB) Uploaded on 12/31/2016 at 05:22PM South Bay Salt Pond Restoration Project map 2011.pdf (9.6MB) Uploaded on 12/31/2016 at 05:22PM USGS Groundwater Quality Data in the San Francisco Bay Study Unit 2007- GAMA Program.pdf (6.8MB) Uploaded on 12/31/2016 at 05:22PM WRIME NEBIGSM Model Development and Calibration (2005).pdf (19.1MB) Uploaded on 12/31/2016 at 05:22PM ACWD Niles Cone Inland Saltwater Intrusion MW Project (2010).pdf (87.8MB) Uploaded on 12/31/2016 at 05:08PM ACWD Niles Cone Saltwater Intrusion and Aquifer Characterization Project Report (2016).pdf (74MB) Uploaded on 12/31/2016 at 05:08PM ACWD Northwest Niles Cone MW Project Final Report (2006).pdf (47.7MB) Uploaded on 12/31/2016 at 05:09PM ACWD Reliability by Design-Integrated Resources Planning (2014).pdf (3.6MB) Uploaded on 12/31/2016 at 05:09PM ACWD Resolution No. 10-066 and ACWD Well Ordinance No. 2010-01.pdf (887.1kB) Uploaded on 12/31/2016 at 05:09PM ACWD Southwest Niles Cone MW Project Final Report (2007).pdf (33.4MB) Uploaded on 12/31/2016 at 05:09PM ACWD Survey Report on Groundwater Conditions (2016).pdf (2.9MB) Uploaded on 12/31/2016 at 05:10PM ACWD Urban Water Management Plan 2015-2020.pdf (25.2MB) Uploaded on 12/31/2016 at 05:10PM ACWD Water Wells 354.8(a)(5).pdf (257.9kB) Uploaded on 12/31/2016 at 05:10PM ACWD Well Standards (2011).pdf (6.9MB) Uploaded on 12/31/2016 at 05:10PM City of Fremont General Plan - Land Use Diagram Sept 2016.pdf (2.1MB) Uploaded on 12/31/2016 at 05:17PM City of Fremont General Plan - Land Use Text Dec 2011.pdf (4.1MB) Uploaded on 12/31/2016 at 05:17PM City of Hayward 2040 General Plan Policy Document July 2014.pdf (25.6MB) Uploaded on 12/31/2016 at 05:18PM City of Hayward Final 2015 UWMP.pdf (20.6MB) Uploaded on 12/31/2016 at 05:18PM City of Hayward Well Standards (see Highlighted).pdf (1,022.4kB) Uploaded on 12/31/2016 at 05:18PM City of Newark General Plan - LandUse Diagram.pdf (2.4MB) Uploaded on 12/31/2016 at 05:18PM City of Newark General Plan Dec 2013.pdf (27.6MB) Uploaded on 12/31/2016 at 05:18PM City of Union City General Plan - LandUse Diagram.pdf (1.3MB) Uploaded on 12/31/2016 at 05:18PM