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.