Wetland Habitat Mitigation and Monitoring Plan

Wetland Habitat Mitigation and Monitoring Plan

Wetland Habitat Mitigation and Monitoring Plan Lodi Gas Storage, L.L.C. Kirby Hills Natural Gas Storage Facility, Solano County (U.S. Army Corps of Engineers File Number 2007-400516N) Prepared for: U.S. Army Corps of Engineers, San Francisco District; San Francisco Bay Regional Water Quality Control Board; and San Francisco Bay Conservation and Development Commission Project Applicant and Responsible Party: Lodi Gas Storage, L.L.C. P.O. Box 230 23265 N. State Route 99 Acampo, CA 95220 Contact: Scott Wilson Telephone: (209) 368-9277 ext. 11 Facsimile: (209)368-9276 Email: [email protected] With Technical Assistance from: ICF Jones & Stokes 630 K Street, Suite 400 Sacramento, CA 95814 Contact: Sue Bushnell 916/752-0959 May 2008 ICF Jones & Stokes. 2008. Wetland habitat mitigation and monitoring plan. May. (ICF J&S 05746.05.) Sacramento, CA. Prepared for: U.S. Army Corps of Engineers, San Francisco District; San Francisco Bay Regional Water Quality Control Board; and San Francisco Bay Conservation and Development Commission. Contents Chapter 1 Project Description and Proposed Mitigation .................................... 1-1 Responsible Party................................................................................... 1-1 Purpose of This Habitat Mitigation and Monitoring Plan ......................... 1-1 Project Location ................................................................................ 1-2 Project Summary .............................................................................. 1-2 Summary of Effects on Waters of the United States ........................ 1-4 Mitigation Site ................................................................................... 1-4 Mitigation Design .................................................................................... 1-9 Basis of Design ................................................................................. 1-9 Characteristics of Design Reference Site ....................................... 1-10 Created and Restored Habitats ............................................................ 1-10 Compensation Ratios ..................................................................... 1-10 Long-Term Goals ............................................................................ 1-11 Aquatic Functions ........................................................................... 1-11 Hydrology ........................................................................................ 1-11 Topography ..................................................................................... 1-12 Soils and Substrate ......................................................................... 1-12 Vegetation ....................................................................................... 1-12 Chapter 2 Success Criteria and Monitoring ......................................................... 2-1 Success Criteria...................................................................................... 2-1 Hydrology .......................................................................................... 2-2 Vegetation Cover .............................................................................. 2-2 Monitoring ............................................................................................... 2-3 Methods ............................................................................................ 2-3 Monitoring Schedule ......................................................................... 2-4 Photo-Documentation ....................................................................... 2-4 Annual Reports ................................................................................. 2-4 Chapter 3 Implementation Plan ............................................................................. 3-1 Site Preparation ...................................................................................... 3-1 Preconstruction Phase ...................................................................... 3-2 Grading Implementation ................................................................... 3-2 Avoidance Measures ........................................................................ 3-3 Soil Treatment .................................................................................. 3-3 Pest Plant Removal .......................................................................... 3-3 Construction Monitoring .................................................................... 3-4 Planting and Seeding.............................................................................. 3-5 Planting Plan ..................................................................................... 3-5 Planting Methods .............................................................................. 3-5 Habitat Mitigation and Monitoring Plan May 2008 Kirby Hills Natural Gas Storage Facility, Phase II i 05725.05 Lodi Gas Storage LLC Table of Contents Nature and Source of Propagules .................................................... 3-6 Irrigation ............................................................................................ 3-7 Implementation Schedule ....................................................................... 3-7 As-Built Drawings ............................................................................. 3-8 Chapter 4 Maintenance during the Monitoring Period ........................................ 4-1 Maintenance Activities ............................................................................ 4-1 Expected Maintenance Activities ...................................................... 4-1 Irrigation ............................................................................................ 4-2 Weed Management .......................................................................... 4-2 Replacement Planting ....................................................................... 4-3 General Site Maintenance and Repairs ............................................ 4-3 Maintenance Inspections ........................................................................ 4-4 Proposed Monitoring Reports ................................................................. 4-4 As-Maintained Drawings ................................................................... 4-4 Annual Reports ................................................................................. 4-4 Potential Contingency Measures ............................................................ 4-4 Chapter 5 Completion of Mitigation ...................................................................... 5-1 Notification of Completion ....................................................................... 5-1 Confirmation of Completion .................................................................... 5-1 Chapter 6 Contingency Measures ........................................................................ 6-1 Initiating Procedures ............................................................................... 6-1 Alternative Locations for Contingency Mitigation .................................... 6-1 Funding Mechanism for Contingency Mitigation ..................................... 6-1 Chapter 7 Long-Term Management ...................................................................... 7-1 Property Ownership ................................................................................ 7-1 Management Plan................................................................................... 7-1 Management Approach .................................................................... 7-1 Site Protection ........................................................................................ 7-2 Chapter 8 References Cited .................................................................................. 8-1 Phase II of the Kirby Hills Natural Gas Storage Project May 2007 Proponent’s Environmental Assessment ii Lodi Gas Storage LLC Table of Contents Tables On Page 1 Waters of the United States Delineated in the Wetland Delineation Study Area ....................................................................................... 1-6 Figures Follows Page 1 Project Vicinity ..................................................................................................... 1-2 2 Kirby Hills I and Kirby Hills Phase II Project Area Boundaries ........................... 1-2 3 Project Site Plan for Phase II Project Components ............................................ 1-3 4 Proposed Wetland Restoration Site and Permanent and Temporary Fill Areas ........................................................................................... 1-3 5 Project Site Profile for Temporary and Permanent Work Over Area for Well W5 ................................................................................................. 1-3 6 Proposed Wetland Reference Sites .................................................................... 1-7 7 Conceptual Wetland Mitigation Plan, Cross Section ........................................ 1-13 Phase II of the Kirby Hills Natural Gas Storage Project May 2007 Proponent’s Environmental Assessment iii Chapter 1 Project Description and Proposed Mitigation Responsible Party The project applicant with financial responsibility for attaining the success criteria described in this Wetland Habitat Mitigation and Monitoring Plan (HMMP) is: Lodi Gas Storage, L.L.C. P.O. Box 230 23265 N. State Route 99 Acampo, CA 95220 Contact: Scott Wilson Telephone: (209) 368-9277 ext.

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