October 2009 - South Tahoe Public Utility District

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Recommendations

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A summary list of recommendations is provided in Section 13.9 (page 13-102). The recommendations include general recommendations, the recommendation for projects to be implemented in the near future, groundwater monitoring recommendations, land and easement recommendations and recommendations for projects with contingent implementation. Master Plan Content The Master Plan is divided into 13 sections and includes 14 appendices. The following briefly describes the content of each section. Section 1 - Introduction This section provides background information regarding the District‟s operations in Alpine County. It includes the history of District operations in Alpine County, details regarding the recycled water application sites, a description of the agreements and permits associated with recycled water management in Alpine County and the issues and concerns pertaining to the current agreements and permits associated with recycled water management. Section 2 - Study Area This section provides a description of the study area in Alpine County that is part of the District‟s freshwater and recycled water operations. The study area description includes the limits of the District‟s Alpine County operations area, current and future land uses, population trends and ranching practices. Section 3 - Existing Freshwater System This section describes the existing freshwater facilities in Alpine County including those owned and operated by the District and other facilities that are part of the District‟s freshwater operations in Alpine County. These include facilities such as the Snowshoe Thompson Ditch No. 1 and No. 2, the Millich Ditch, the Upper Dressler Ditch, the Upper and Lower Harvey Channels, and the Indian Creek Reservoir. Section 4 - Existing Recycled Water System This section describes the existing recycled water facilities in the Master Plan area including the C-Line, Harvey Place Reservoir, and the Diamond Ditch. Section 4 also includes additional information pertaining to the contract irrigation ranchers, and potential future users of the District‟s recycled water. Section 5 - Flow Projections This section presents the methodology used to estimate the future volume of the District‟s recycled water to be managed. The planning year is 2028, the year the existing contract irrigator agreements expire. Section 5 also includes an evaluation of the recycled water quality. A trend analysis is provided for both recycled water quality and quantity to establish baseline numbers for master planning. Section 6 - Recycled Water Quality Regulations This section provides an overview of federal, state and local regulations pertaining to use of recycled water. Section 6 also discusses the potential state-wide Recycled Water Policy which is currently being developed, the ultimate goal of which is to promote the use of recycled water in California and includes the potential requirements for preparation of Nutrient Management Plans of recycled water. In general, Nutrient Management Plans may be required for irrigation projects when the recycled water exceeds three milligrams per liter (mg/l) of total nitrogen (the District‟s recycled water averages about 20 mg/l total nitrogen). South Tahoe Public Utility District Recycled Water Facilities Master Plan - October 2009 Page xvi
Section 7 - Master Plan Development This section includes statements of the purpose and need for the Master Plan including the issues the Master Plan intends to resolve. The section also includes the objectives of the Master Plan, the guiding principles for development for the Master Plan and an overview of the planning process. Section 8 - Development of Projects This section describes the development of Master Plan projects to meet the purpose and need and the objectives of the Master Plan. Section 9 - Recycled Water Infrastructure Projects This section describes ten recycled water infrastructure projects including six projects recommended for implementation in the near future and four projects whose implementation is contingent upon various factors. For the contingent projects, the trigger mechanism for project implementation is discussed. Section 10 - Recycled Water Management Projects This section describes three recycled water management projects two of which are recommended for implementation in the near future while the third project‟s implementation is contingent. Section 11 - Freshwater Infrastructure Projects This section presents five freshwater infrastructure projects all of which are subject to contingent implementation. Section 12 - Freshwater Management Projects This section presents two freshwater management projects both of which have contingent implementation. Section 13 - Master Plan Implementation This section presents strategies for implementation of the projects identified in the Master Plan. The section describes various triggers which could cause the implementation of contingent projects. These triggers include loss of land currently irrigated with recycled water, regulatory changes, and changes to the total volume of recycled water to be managed. Section 13 also includes an overview of the potential future projects that may require reconsideration when the Master Plan is updated. Section 13 includes a list of recommendations (page 13-102) of actions the District should take to address recycled water and freshwater management in Alpine County. Also included is a capital improvement plan for non-contingent projects (page 13-101). The capital improvement plan provides a schedule for implementation of projects to be constructed on the Diamond Valley Ranch. Master Plan Implementation The Master Plan intends to provide guidance to the District for recycled water operations and its direct land application as an irrigation resource, and management of freshwater by implementation of each project identified. Various project triggers such as development of existing ranchland, resulting in loss of recycled water application sites, coupled with higher recycled water flow rates and volumes entering Alpine County will determine the need for, and priority of, implementation of the contingent projects of the Master Plan. South Tahoe Public Utility District Recycled Water Facilities Master Plan - October 2009 Page xvii
Page 1 and 2: South Tahoe Public Utility District
Page 3 and 4: Table of Contents List of Tables ..
Page 5 and 6: 6.4.3 Endangered Species Act ......
Page 7 and 8: Section 13: 12.4 Potential Temporar
Page 9 and 10: 11.2 - Indian Creek Freshwater Trea
Page 11 and 12: Executive Summary Introduction, Pur
Page 13 and 14: Through a process of public partici
Page 15: Table ES-2 presents vital numbers r
Page 19 and 20: Section 1: Introduction The purpose
Page 21 and 22: agreement between South Lake Tahoe
Page 23 and 24: irrigation ditches were used to irr
Page 25 and 26: Agreement Name 1967 Agreement Harve
Page 27 and 28: Agreement Name Celio Agreement Tent
Page 29 and 30: Section 2: Study Area 2.1 Descripti
Page 31 and 32: ecycled water facilities and public
Page 33 and 34: Section 3: Existing Freshwater Syst
Page 35 and 36: Figure 3.2: Indian Creek Reservoir
Page 37 and 38: Section 4: Existing Recycled Water
Page 39 and 40: Farm lateral must be intact to util
Page 41 and 42: 4.2.1.3 Neddenriep Ranch Partnershi
Page 43 and 44: Development in areas currently rece
Page 45 and 46: Flow (MGD) Section 5: Flow Projecti
Page 47 and 48: Table 5.0: Recycled Water Flow and
Page 49 and 50: Volume of Recycled Water (AFY) Tabl
Page 51 and 52: estimated 2028 population of 33,900
Page 53 and 54: Figure 5.2.1(b): NO 3-N versus Time
Page 55 and 56: Figure 5.2.1(f): Total Dissolved So
Page 57 and 58: 5.2.4 Groundwater Monitoring The Di
Page 59 and 60: Section 6: Recycled Water Quality R
Page 61 and 62: Services (DHS) to establish water r
Page 63 and 64: „Secondary treatment‟ means the
Page 65 and 66: 6.4.4 Section 401 of the Clean Wate
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Section 7: Master Plan Development
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● ● ● ● ● To maximize rec
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annually. This inconsistency can be
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Each workshop conducted in 2001 was
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Section 8: Development of Projects
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Table 8.1 Recycled Water Facilities
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Section 9: Recycled Water Infrastru
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Several options exist for efficient
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Reservoir outlet facility to Diamon
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9.4.1 Project Description The desig
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9.5.1 Project Description Improveme
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monitoring and SCADA control system
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Pressure required to allow full fun
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elatively minor in comparison to op
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Section 10: Recycled Water Manageme
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with recycled water. This and other
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Section 11: Fresh Water Infrastruct
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Like Project No. 14 (page 11-81), p
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available storage volume of the Res
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Section 12: Fresh Water Management
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Section 13: Master Plan Implementat
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13.2 Recycled Water Production Trig
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Ranch Total Acreage Table 13.1 - Ac
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13.3 Regulation Triggered Project I
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District to realize an economic ben
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pipeline from the beginning of the
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13.8 Capital Improvement Plan The M
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2) Construct Project No.‟s 1, 2,
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13.9.3 Groundwater Monitoring Recom
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It is recommended that District imp
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October 2009 - South Tahoe Public Utility District

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