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The Watershed Model is Working for AMR

The Watershed Model is Working for AMR. 2008 PA Abandoned Mine Reclamation & Coal Mining Heritage Conference August 13, 2008. Presented by: Margaret H. Dunn, Timothy P. Danehy, Shaun L. Busler, Clifford F. Denholm, Tom Grote. SRWC Watershed Model DEFINITION. Partnering with Individuals

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The Watershed Model is Working for AMR

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  1. The Watershed Model is Working for AMR 2008 PA Abandoned Mine Reclamation & Coal Mining Heritage Conference August 13, 2008 Presented by: Margaret H. Dunn, Timothy P. Danehy, Shaun L. Busler, Clifford F. Denholm, Tom Grote

  2. SRWC Watershed ModelDEFINITION Partnering with • Individuals • Businesses • Governments • Schools • Service Groups • Non-profits to improve the local watershed.

  3. “In my own words” SRWC Watershed ModelHISTORY Restoration by govt. agencies & active mining operations Since 1960s, BAMR & predecessors (Operation Scarlift) Until mid-1980s, AMR areas avoided by active mining; “you touch it, you buy it” Since 1986, responsible remining supported; “you can’t make it worse” “Pooling” of more resources needed 5/2/1992, passive treatment workshop at JEEC sponsored by Knox DMO 1994, ALD installed at JEEC with successful partnership effort “without funding” 1995 to date, 15 passive systems; >750,000,000 gal./yr. AMD treated

  4. Why “pool” our resources?How many miles of impacted streams?? 4600 miles of AMD-impacted streams in PA More than the distance from Washington DC to Juneau AK

  5. SRWC Watershed ModelGOALS 1. Restore the headwaters to a viable fishery 2. Develop public-private partnership efforts -to reclaim abandoned mines -to include additional benefits 3. Develop and improve water treatment & land reclamation techniques -environmentally-friendly -low cost -low maintenance -long lived or sustainable 4. Provide educational opportunities -at all levels -to all age groups

  6. An approach SRWC Watershed ModelIMPLEMENTATION Assess the issue landowner monitor discharge & stream construction area Team of Willing Contributors strip miners potters involved “before-during-after” win-win-win solution

  7. Slippery Rock Creek Watershed (410 sq. mi.) SRWC Watershed Model14-YR. CASE STUDY

  8. SRWC Watershed ModelHEADWATERS TARGET AREA • 27 square miles • 4000 acres with underground mine workings • 8000 acres permitted for surface mining • Color Code: • Blue - Good • Green - Acid Sensitive • Yellow - AMD impacted • Red - Polluted

  9. SRWC TARGET AREA

  10. AMD Treated 750million gallons per year AMD treated by passive systems --- enough to fill over 9million bath tubs

  11. Iron Removed >200 tons/year of iron removed --- same amount as in ~200 pick-ups

  12. Aluminum Removed >8 tons/year of aluminum removed --- same amount as in ~273,000 pop cans

  13. Jennings Environmental Education Center Vertical Flow System(Brady Twp., Butler Co.; DEP 319; Dave Johnson, Center Manager; PA DCNR Bureau of State Parks) Components: collection pipes  VFP (mixture: 300T SMC & 380T >90% CaCO3 LS) Bioswale  Wetland/SP(WL/SP)  existing const. wetlands (ca. 1989) Design Life: 1997 predicted optimum media life 7-10 yrs. with complete exhaustion ~14 yrs. Design Flow: ~20 gpm Operation Period: ~11 years (9/1997 to date) O&M: media “stirring” 7/2004 & 7/2007 w/o addition of media; minor maintenance Values: Averagemin/median/max

  14. JEEC Vertical Flow System Volunteers Aid in Construction

  15. De Sale Phase 3 Restoration Area(Venango Twp., Butler Co.; bond forfeiture; Meyer property; Terry Elicker, MCI, PA DEP Knox DMO) Components: collection ditch; 2 VFP(LS overlain by ~1’ SMC); 2 SP; HFLB Design Life: projected 25 years Design Flow: 12 gpm (avg); 60 gpm (max) Operation Period: ~6 years (9/11/02 to date) O&M: flushing and other minor maintenance Values: average min/max; post-construction monitoring 10/2002 thru 5/2007

  16. De Sale 3 O&M

  17. Pre-Restoration

  18. 2000

  19. 2001

  20. 2002

  21. 2003

  22. 2004

  23. 2005

  24. 2006

  25. De Sale 2 HFLB “CLOGGED” YEAR 7

  26. De Sale 2 HFLB Opportunity! Cleaned Stone Clogged Stone

  27. Post-Rehabilitation Influent and Effluent Water Quality of De Sale 2 HFLB

  28. De Sale 2 Recovered Mn MaterialBulk Chemical Analysis 25% MnO 25% SiO2 10% CaO 10% Al2O3 5% Fe2O3 20% LOI 5% Other

  29. Kid-Approved Concrete Colorant

  30. …With a littlehelpfromourfriends The Pottery Dome

  31. Seaton Creek Below De Sale 1, 2, 3Sampling Point 48

  32. 1. Restore the headwaters to a viable fishery SRWC Goals

  33. 2. Develop public-private partnership efforts not only to reclaim abandoned mine sites but also to demonstrate the multiple benefits associated with watershed restoration SRWC Goals

  34. 3. Develop and improve treatment systems and land reclamation techniques that are environmentally-friendly, low cost, low maintenance, and long term or sustainable SRWC Goals

  35. 4. Provide educational opportunities at all levels to all age groups interested in abandoned mine restoration SRWC Goals

  36. 2001 Stream Recovery Assessment

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