Martis Valley Groundwater Management Plan - Placer County Water ...

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Martis Valley Groundwater Management Plan Section 3 evaluate the need for saline intrusion controls, mitigation of the migration of contaminated groundwater, conjunctive use programs, and overdraft mitigation. Currently, the groundwater supply in Martis Valley is not threatened by saline intrusion, contaminant plumes, or in a state of overdraft that would warrant immediate steps for mitigation. Saline intrusion is a primary concern along coastal areas with intruding sea water, which is high in Total Dissolved Solids (TDS) that may threaten fresh groundwater supplies. Saline conditions may also occur in interior basins. In the Martis Valley, groundwater monitoring (discussed under Section 3.4), will assist in identifying saline issues. Should future monitoring indicate that saline intrusion is a potential problem in the MVGB, the partner agencies will evaluate development of a saline intrusion control program. Groundwater contamination in the MVGB falls under the jurisdiction of the Lahontan Regional Water Quality Control Board (LRWQCB). Should monitoring indicate a large scale groundwater contamination issue, the partner agencies will share knowledge of the issue and collaborate with the LRWQCB. If monitoring indicates that contaminated groundwater is migrating, the partner agencies will further collaborate with the LRWQCB to mitigate the migration. Conjunctive use is the management of surface water and groundwater to optimize the yield of the overall water resource. One method would be to rely primarily on surface water in wet years and groundwater in dry years. Other methods employ artificial recharge, where surface water is intentionally stored into aquifers for later use. NCSD currently manages both its springwater and groundwater supply and TDPUD currently relies solely on groundwater but maintains water rights to several springs. Groundwater is PCWA’s only supply source. The partner agencies will evaluate opportunities to increase the use of conjunctive management as they arise within the MVGB. Groundwater overdraft occurs when pumping exceeds recharge to a groundwater basin. If monitoring indicates through declining groundwater levels that groundwater overdraft is occurring, the partner agencies will consider development of programs to mitigate the groundwater overdraft. 3.1.8 Consider development of contamination cleanup, recharge, storage, conservation and water recycling projects This implementation action includes evaluation of a variety of potential programs to manage groundwater within the jurisdiction of the partner agencies. As part of this action, the partner agencies will consider development of projects that cleanup contamination, increase groundwater recharge and storage, or increase conservation and water recycling. The LRWQCB is responsible for developing and enforcing water quality objectives and plans that best protect the State’s waters within its hydrologic area. Should monitoring indicate that contaminated groundwater is a threat to groundwater supplies, the partner agencies will consider collaborating with the LRWQCB. During GMP implementation, opportunities may arise for the partner agencies to engage in activities related to groundwater recharge, storage, conservation and recycling. As those opportunities arise, the agencies will consider participating in projects to improve groundwater recharge, storage, conservation and recycling efforts. 3.1.9 Pursue funding sources for implementation of plan policies, programs, reporting and projects This implementation action directs the partner agencies to pursue funds from Federal, State and other sources as they become available and are beneficial to pursue. Funding sources may include Local Groundwater Assistance (LGA) grants and Integrated Regional Water Management Planning (IRWMP) DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this document. P:\40000\140691 - PCWA Martis Valley GWP\GMP\Report\3rd Draft\Martis Valley GMP Draft 01-09-13.docx 3-3
Martis Valley Groundwater Management Plan Section 3 grants from DWR, grants from the California Department of Public Health (DPH), various funds available through collaboration with the U.S. Bureau of the Interior, and other agencies. 3.1.10 Participate in the evaluation of relevant local projects to maintain groundwater quantity and quality Local groups and local, State or Federal agencies may develop opportunities that seek support or assistance for projects that affect groundwater quantity and/or quality in the Martis Valley. This action directs the partner agencies to participate in relevant local projects as appropriate and reasonable. 3.1.11 Summary of BMO #1 Actions Table 3-1 presents a summary of implementation actions to be undertaken by the partner agencies that support BMO #1 including the anticipated schedule of implementation. Table 3-1. Summary BMO#1 Supporting Implementation Actions Description of Action 1-1 Develop and implement a summary report every five years that includes: A summary of monitoring results, with a discussion of historical trends A summary of management actions during the period covered by the report A discussion of whether actions are achieving progress towards meeting BMOs A summary of proposed management actions for the future A summary of any GMP changes that occurred during the period covered by the report A summary of actions taken to coordinate with other water and land agencies and other government agencies Review of the GMP and consider updates to the GMP 1-2 Compile an annual summary of groundwater monitoring data Annually 1-3 Partner agencies to meet annually to discuss GMP implementation Annually 1-4 Support TROA provisions associated with well construction, repair, modification, and destruction As Needed 1-5 Evaluate and consider taking a position on relevant water resource-related policies, programs, and projects under consideration by local, State and Federal agencies 1-6 Pursue opportunities for improved groundwater basin monitoring and reporting with local, State, and Federal agencies 1-7 Evaluate the need for programs to facilitate saline intrusion control, mitigate the migration of contaminated groundwater, facilitate conjunctive use, and to mitigate overdraft DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the end of this document. P:\40000\140691 - PCWA Martis Valley GWP\GMP\Report\3rd Draft\Martis Valley GMP Draft 01-09-13.docx Implementation Schedule Once every five years, first summary report to be completed in 2018 As Needed As Needed As Needed 1-8 Consider development of contamination cleanup, recharge, storage, conservation and water recycling projects As Needed 1-9 Pursue funding sources for implementation of plan policies, programs, reporting and projects Ongoing 1-10 Participate in the evaluation of relevant local projects to maintain groundwater quantity and quality As Needed 3.2 Implementation Actions that Support BMO #2 - Manage Groundwater within the Provisions of TROA The Settlement Act, Public Law 101-618 (1990), established entitlements to the waters of Lake Tahoe, the Truckee River and its tributaries, and how the storage reservoirs of the Truckee River are operated. Section 205 of the Settlement Act directs the Secretary of the Department of the Interior to negotiate an operating agreement for the operation of Truckee River reservoirs, between DWR, Nevada, Nevada 3-4
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Page 3 and 4: This Groundwater Management Plan (G
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Page 19: Section 2 Physical Setting The MVGB
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Page 47 and 48: Independence Lake Donner Euer Valle
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Page 57 and 58: Legend Q Martis Valley Groundwater
Page 67 and 68: RESOLUTION NO. 11 - .!30F THE BOARD
Page 70: NOW, THEREFORE, the BOARD OF DIRECT
Page 78 and 79: 16395813 PUBLIC NOTICE ·----------
Page 80 and 81: Page 2 of 2 of the Agenda of the Ma
Page 84 and 85: Introduction Martis Valley GMP - Dr
Page 86 and 87: Martis Valley GMP - Draft Public Ou
Page 90 and 91: TABLE OF CONTENTS i Table of Conten
Page 92 and 93: FIGURE 1-1. MAP OF GROUNDWATER BASI
Page 94 and 95: 2.0 BACKGROUND 2-1 Background This
Page 96 and 97: ELEVATION (FEET NAVD88) A North 750
Page 98 and 99: ELEVATION (FEET NAVD88) 7500 7000 6
Page 100 and 101: DWR CASGEM Well FIGURE 3-1. EXISTIN
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Figure 3‐1 Reference Index 1 2 3
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3.4 REQUIRED STEPS IN SELECTING A N
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4.0 MONITORING EQUIPMENT AND PREPAR
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4-3 Monitoring Equipment and Prepar
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Keys for gates and monitoring well
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4-7 Monitoring Equipment and Prepar
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Depth-to-groundwater Procedures and
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Recording of Monitoring Data, Data
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Recording of Monitoring Data, Data
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Department of Water Resources Groun
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INTRODUCTION TO THE CASGEM PROGRAM
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exceptions to this density range in
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FREQUENCY OF WATER‐LEVEL MEASUREM
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Figure 3. Common environmental fact
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ESTABLISHING THE REFERENCE POINT Wa
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Table 3. General well data form (DW
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Table 4. Equipment and Supply List
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conditions may require deviating fr
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6. Subtract the “Tape at WS” nu
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(2) Electric Sounding Tape Method T
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ecording this measurement with the
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idea of the expected range of groun
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Top of Casing (RP) Hanging Point Ba
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Table 6. Groundwater level data for
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GLOSSARY OF TERMS The following ter
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Groundwater subbasin - A subdivisio
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REFERENCES Alley, W.M., ed., 1993,
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Appendix B CASGEM Monitoring Plan S
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• groundwater conditions in the b
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Monitoring Entities will submit the
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IN THIS ISSUE: WATER QUALITY REPORT
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Monitoring of Unregulated Substance
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Primary Business Address Your Addre
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Drinking water, including bottled w
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U.S. Geological Survey and the Cali
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RESULTS: Groundwater Quality in the
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Martis Valley Groundwater Managemen
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utilized a water balance method to
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with water supply wells. Perennial
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Figure 3. PRMS model domain with a
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Figure 6. Value of recharge efficie
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Figure 8. Mean annual recharge (inc
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