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Leona Heights Sulfur Mine & Creek Cleanup: Project Overview and Goals

The Leona Heights Sulfur Mine and Creek Cleanup aims to address the severe pollution caused by mining waste in the area, notably toxic acid mine drainage affecting local wildlife. This project will eliminate contaminants, stabilize hillsides, and restore Leona Creek, all while minimizing disruptions to nearby residents. Key elements include environmental permitting, construction management, noise and dust control measures, and community involvement to ensure a successful transformation of the site into a green and stable environment.

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Leona Heights Sulfur Mine & Creek Cleanup: Project Overview and Goals

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  1. WELCOME Leona Heights Sulfur Mine & Creek Cleanup Lindsay Whalin, MS, PG Darin Ranelletti

  2. Leona Heights Sulfur Mine & Creek Cleanup Project purpose & Design Lindsay Whalin, MS, PG San Francisco Bay Water Board

  3. Presentation Outline 1. Lindsay 2. Phil 3. Darin • Purpose of Cleanup • Project Goals • Current Design • Construction Management • Project Duration • Construction days/hours • Road use/ Traffic • Noise control • Dust control • Access route • Staging areas • City Permits • Environmental Review • Timeline • Next Steps

  4. Location McDonell Ave. Leona St. Mining Waste Piles N

  5. Leona Heights Sulfur Mine & Creek Cleanup 5 The Problem

  6. The Problem: Mining Waste

  7. The Problem : Acid Mine Drainage

  8. The Problem : It’s Toxic to Wildlife Leona Creek: Not just ugly… Mercury Cadmium Copper Lead Arsenic 10 to 10,000 x levels toxic to wildlife (no pathway to humans)

  9. The Goals, Actions, & Actors Agencies Involved Project Goals • Cleanup mine site, eliminate acid mine drainage • Cleanup Leona Creek • Minimize impacts • Disturbance of neighbors (dust, noise, traffic) • Tree removal • Wildlife • Water Board • Required and oversees cleanup, design, stream habitat protection • City of Oakland • Permits & environmental review (CEQA) • US Army Corps Engineers • Stream protection • Ca Dept. Fish &Wildlife • Endangered species & stream protection

  10. Leona Heights Sulfur Mine & Creek Cleanup 10 The Solution

  11. Current Condition Mining Waste Natural Hillside

  12. The Solution: Isolate Mining Waste Mining Waste Natural Hillside

  13. The Results : Green, Stable Hillsides Present Future Run-on Prevention Channel Images courtesy of LSA Associates and Andrew McNichol

  14. The Results: : Expanded Cul-de-sac on McDonell Present Future Run-on Prevention Channels Images courtesy of LSA Associates and Andrew McNichol

  15. The Results: Green, Stable Hillsides Present Future Images courtesy of LSA Associates and Andrew McNichol

  16. The Results :Clean, Stable Creek Present Future Skelly and Loy Inc.

  17. Leona Heights Sulfur Mine & Creek Cleanup 17 Construction Management Phil Goalwin, PG E2C Remediation

  18. Construction Management 18 • Staging Areas • Access Route • Logistics of Using McDonell Ave • Dust Control • Noise Control • Construction Days/Hours • Project Duration

  19. Staging Areas • Primary Staging Area • McDonell Cul-De-Sac and Site Entrance • Materials Staging Area • Leona Lodge Overflow Parking Lot

  20. Haul Route And Staging Areas

  21. Access Route • McDonell Ave. vs. Fire Road • Why not Fire Road? • Segments with Steep grades (up to 15%) • 180 degree Switchbacks • Appr0ximately 3.0 miles roundtrip • Shuts down trail for 5 months • Larger air emissions • Habitat for Alameda whip snake • Biological mitigation/Vernal Pools • Only emergency access • Need improvements to use • Still need to cross and use McDonell Ave

  22. Fire Road

  23. Access Route • McDonell Ave. vs. Fire Road • Why McDonell Ave? • Right at the primary staging area • Appr0ximately 0.6 miles from materials staging area • Paved road with gentle slope • Less air emissions • No biological mitigation • Do not need improvements to use • Reduced environmental impacts

  24. McDonell Use Logistics • 5 Materials Staging Events • Each Event lasts 5 days (Monday~Friday) • Flagmen with radios to implement traffic control • Small Haul Trucks (with payload <10 tons) • Truck speeds to be kept under 10 mph • Residents will be given priority to truck traffic

  25. Dust Control • Limited water spray to soils graded, excavated, truck loaded., etc. • Amount to control dust, but not cause runoff • Cover soil stockpiles with weighted plastic sheeting • Vehicles <5mph • Minimize material drop heights during unloading

  26. Noise Control • Smaller Equipment • Noise Reduction Blankets on Perimeter Fence • Noise Reduction Blankets on Temporary Fence • No Construction Work at night, on weekends or holidays

  27. Construction Days/Hours • Weekdays only (Monday-Friday) • Working Hours - In Accordance With City Of Oakland Conditions Of Approval • No Holidays

  28. Project Duration • Construction Start • Early to Mid May 2014 • Construction Completion • September 30, 2014

  29. Leona Heights Sulfur Mine & Creek Cleanup 29 Permitting Darin Ranelletti, Planner City of Oakland

  30. City of Oakland Permits • Creek Permit • For clean-up work in creek • Tree Removal Permit • To remove and replace trees impacted by project • Grading Permit • To ensure stable slopes • Street Permit • For work in McDonall Avenue cul-de-sac

  31. Environmental Review (CEQA) • Aesthetics • Air Quality • Biological • Cultural • Geology • Hydrology • Noise • Traffic Environmental analysis to include topics such as: CEQA document = Mitigate Negative Declaration • All impacts reduced to less-than-significant levels

  32. Timeline • Nov 2013: Permit applications submitted to City • Feb 2014: Community meeting • Mar 2014: Public notices sent out • Starts official 30-day public review period • May 2014: Permits issued • May 2014: Project starts • Sept 2014: Project complete

  33. Next Steps • Public notices sent out (March) • Environmental document available on City’s website and in City offices • 30-day public review period • Permits issued

  34. Thank you Questions or comments?

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