Hedin Environmental Passive Mine Water Treatment Systems

Transcription

1 Blair, Butler County, gpm, acid 87, Fe ph 7.2, alkaline, Fe and DLB and existing pond Design and construction and <1 Andrews Run, Westmoreland County, gpm, acid 133, Fe 47, Mn 60 ph 7.5, alkaline, Fe <1, Mn 3 ALD,, oxic limestone bed, pond Klondike, gpm, acid, Fe and ph 7, alkaline, Fe and < 1 redesigned vertical flow pond Fall Brook, South System, gpm, acid, 10 ph 7, alkaline Drainable LS beds, s Fall Brook, North System, gpm, acid, Fe and ph 7, alkaline Drainable LS bed, Sterrett, Venango County, gpm, acid, Fe,, and Mn ph 7, alkaline, Fe and <1; Mn 3 Drainable LS beds Lewis System, Sullivan County, gpm, acid, Fe and ph 7, alkaline, Fe and < 1 rehabilitated VFP, / Lamberts Run, Somerset County, gpm, acid 250, Fe 170 kalinity 160 Anoxic Limestone Drain Design, construction Inspections Teerco, Pond 4 & S-10, Greene County, gpm; acid 100, Fe 10, 3, Mn 25 ph 7, Fe and < 1; Mn < 2 Drainable LS beds, Design, construction Inspections, limestone rehab Robbins Hollow, Pipes 1-4, Clinton County, gpm, acid, Fe and ph 7, Fe and < 1

2 Robbins Hollow, 10A/10B, Clinton County, gpm, acid, Fe and ph 7, alkaline, Fe and < 3 Private Gold Mining Company, Laos gpm, Fe 2, Mn 4 ph 7, Fe <1, Mn < 0.5 oxic rock bed Conceptual design Periodic cleaning of stone by mining company Private Mining Company, Armstrong County, gpm, acid 128, Mn 47, 8 ph 7, 128 alkalinity, 2-3 Mn, <1 Conceptual design Long-term trust settlement between mining company and DEP MR-6, Muddy Run, Clinton County, gpm, acid 83, Fe 4, 3, Mn 22 ph 7, Fe < 1, < 1, Mn 1 Design, project MR-4, Muddy Run, Clinton County, gpm, acid 43, Fe <1, 6, Mn 11 ph 7, Fe < 1, < 1, Mn < 1 Design, project MR-2, Muddy Run, Clinton County, gpm, acid 95, Fe < 1, 8, Mn 20 ph 7, Fe < 1, < 1 Design, project Woodlands, legheny County, gpm, acid 175, 24 ph 6.5, < 1 Drainable LS Bed Design, project Moore DLB System, Somerset County, gpm, ph 3.7, Fe 11, 2; ph 7.2, Fe 1, <1 DLB, pond Design, construction Moore ALD System, Somerset County, gpm, ph 5.6, Fe 76, <1 Swamp, Clinton County, gpm, acid 430, Fe 74, 36, Mn 25 ph 6.7, Fe <1, <1 ALD, pond, Design, construction ph 7, and Fe <1, Mn 7 3 vertical flow ponds, 1 drainable limestone bed, two s Inspections; pond cleanout every 15 years; ALD replacement every 20 years every 5-, limestone rehab every

3 Tangascootac #1, Clinton County, gpm, acid 100, 10, Mn 25 ph 7, & Mn < 1 Drainable LS Bed Design, project Upper Latrobe, Westmoreland County, gpm, net alkaline, Fe 40 ph 7, Fe <5 3 aerobic ponds and constructed Teerco, Seep B, Greene County, 2010 net acid, Fe 80 ph 7, Fe<1 ALD, aerobic pond, constructed s Design, permitting, and CO Wingfield Pines, legheny County, ,500 gpm, net alkaline, Fe 15 ph 8, Fe <1 5 aerobic ponds and constructed Duquesne Slag, legheny County, 2009 net acid, Fe 15 ; Mn 3 net alkaline, Fe and Mn < 1 ALD,, 2 constructed s Filson 7, Clarion County, gpm, net acid 180, Fe 105 net alkaline, Fe 20 3 ALDs and 2 settlings ponds Design, project Bilger Run, Clearfield County, gpm, net acid 50, Fe 10 net alkaline, Fe <1 ALD and existing Inspections; pond elevation modifications Glenraffan Creek gpm, alkaline, ph 7, Fe 12 ph 7-8, Fe < 3 aerobic Conceptual treatment design, permit review 15 years Teerco, Seep A, Greene County, 2007 ph 5-6, Fe 2-10 ph 7-8, Fe and Mn < 1 ALD and constructed Design, permitting, construction Inspections Wilson Run, Westmoreland County, gpm, net alkaline, Fe 30 ph 7, Fe 1-5 Fe cleaned out and Design, permitting, Inspections; iron removal redesigned setttling pond construction, (every years)

4 LC20D / Little Coon Run, Clarion County, Marchand, Westmoreland County, Middle Branch Redesign, Clinton County, Lewis System, Sullivan County, gpm, acid 200, Fe ,800 gpm, net alkaline, ph 6.2, Fe gpm, acid 400, ph 3, 50, Fe gpm, acid 75, 10 Fe<2, ph 5-6 ALD, pond, Design, permitting, Inspections; iron removal construction, (every years) Fe<1, ph 7-8 net alkaline, Fe and < 2 ph 6-7, net alkaline, and Fe < 1 Iron Oxide production ponds (6) and aerobic deep mine collection system, four VFPs, Design, permitting, Inspections; iron removal in construction, 2012 System redesign, contruction vertical flow pond Design Inspections Inspections; flow and water level adjustments Audenreid / Catawissa Creek, Schuylkill County, Robbins Hollow Complex, Clinton County, Mitchell Self-Flusher, Tioga County, K&J Coal, Pond 23, Cambria County, K&J Coal, Pond 4, Cambria County, K&J Coal, Pond P Site, Cambria County, ,500 gpm, net acid 70, 8, Fe < < gpm, acidity ; 40-80; Fe 1-60; Mn gpm, acid 440, Fe 10, gpm, ph 5, 2, Mn 5, Fe < gpm, ph 4.5, 10, Mn 40, Fe < gpm, ph 3.5, 15, Mn 40, Fe < 1 < 3 total, < 1 dissolved variety of discharges; summed flow is ph 6-7 with Fe and < 1 initally, ph 5-6 Fe and < 3 ; declined to 50% effective after 6 months Net alkaline40, < 1 ; Mn <1 ; Fe < 1 Net alkaline 90, < 1 ; Mn <1 ; Fe < 1 Net alkaline 40, < 1 ; Mn <5 ; Fe < 1 Three large self-flushing limestone tanks, 2 ponds 4 minisystems incuding an ALD, two OLDs, 4 VFPs, and ponds Self-flushing limestone bed, settlign pond VFPs (2), flush system, VFPs (2), flush system, and oxic LS bed VFPs (3), flush system,, Developed conceptual design; reviewed plans and specs Inspections; sludge removal Design, permitting, Inspections; flushing construction, Design, permitting, Inspections construction, Major Bond Forfeiture COA; managed technical components of passive treatment system design, construction, and Inspections; flushing of VFPs

5 K&J Coal, Gaber-Brown Site, Cambria County, LERMD20 / Elk Run, Jefferson County, Anna S Mine Complex, Hunters Drift / Babb Creek, Soberdash, Eastern Discharge, Somerset County, Soberdash, MD1 and MD2, Somerset County, Scrubgrass, legheny County, gpm, ph 3.5, 25, Mn 40, Fe < / gpm, net acid 230, Fe 15, gpm, ph 3, Fe 10, gpm, ph 3, Fe 50, gpm; ph 3-4, Fe 10-50, gpm, net acid, ph 5, gpm, net alkaline, ph 6.0, 70 Fe Net alkaline 50, < 1 ; Mn <1 ; Fe < 1 Net alkalinity 100, Fe < 1. < 1 Net alkaline, Fe < 1, < 1 Net alkaline, Fe < 1, < 1 per DEP, net alkaline with low metals under design conditons VFPs (2), flush system,, oxic LS bed, Downflow compost bed, upflow LS bed with flushing, pond, VFPs (4), flush system, and polishing VFPs (4), flush system, and polishing oxic limestone channel, oxic limestone bed Design, permitting, Inspections; flushing construction, Conceptual design, construction and project Conceptual design, construction and project plan rewiew (with RAR Engineering) per DEP, net alkaline ALD, pond, plan rewiew (with RAR Engineering) Net alkaline, ph 6.5, Fe Two s with Maelstrom Oxidizer System redesign and project Regular flushing Regular flushing Should be minimal but actual unknown Should be minimal but actual unknown Routine handled by IOR Ace Drilling, Site 26, Cambria County, Ace Drilling, Site 26A, Cambria County, JRU 88 and 89, Elk County, gpm, net acid, ph 5, Fe 130, gpm, ph 3-4, Fe 130, gpm, Fe 10, 10, net acid 125 net alkaline, Fe < 2 net alkaline, Fe and < 2 Net alkalinity 60, Fe < 1, < 1 ALD, reconfigured plan constructed review (with Minetech, Inc.) VFP, reconfigured, oxic limestone bed Self-flushing LS, VFP, settling Pond, and aerobic plan review (with Minetech, Inc.) Complete design and project Routine flushing by watershed association Routine flushing by watershed association Regular flushing

6 Conifer East, Beaver Run, Jefferson County, Little Hefren / Toms Run, Cook Forest State Park, Clarion County, Keystone Power t, Armstrong County, Conifer West, Beaver Run, Jefferson County, C&K Pit 601 / Mill Creek, Jefferson Co gpm net acid, ph 4, Fe 1-10, gpm, net acid, ph 5.8, Fe Fe gpm, net acid, ph 3.5, Fe 40, gpm, net acid, ph 4.4, Fe 30, gpm, net acid, ph 5.7, Fe 80 alkaline-amended followed by oxic limestone bed Net alkaline, Fe 1-5 ALD, and aerobic alkaline water with <2 Fe and VFP and constructed Complete design and project Complete design and project construction consultation net alkaline with Fe and ALD, s, and Complete design and project <1 for 4 years; variable aerobic effluent since 2003 Net alkaline, Fe < 7 ALD, reconfigured constructed Design of ALD and reconfigured system No routine ; some repairs due to flood and muskrat damage Periodic channel cleanout Reported to be minimal by client Periodic ALD flushing which has not occurred To our knowledge, none Jennings / Slippery Rock Creek, Butler County, gpm, ph 3.3, Fe 56, 19 net alkaline, Fe and < 1 VFP construction consultation Organic substrate replacement in 2013 SR-101A / Slippery Rock Creek, Butler County, gpm, net acid, ph 5.5, Fe 90 Net alkaline, Fe 9 ALD, and aerobic Conceptual design, project Negligible, periodic channel cleanouts Delta Maust, Somerset County, (bond forfeiture COA) SR 114D, Butler County, SR-114B, Butler County, gpm, net acid, ph 3, Fe 23-34, gpm, net acid, ph 5.8, Fe gpm, net acid, ph 6.0, Fe 20 reported by DEP to be two VFPs followed by net alkaline, Fe and < 2 aerobic Net alkaline with Fe 1-10; ALD, and aerobic System design (with CDS, Inc.) Conceptual design, construction, project Net alkaline, Fe < 10 ALD and Conceptual design, construction, project Reported to be negligible by DEP Periodic channel cleanout; one spillway renovation None

7 Area 1 Passive System, Sequatchie County, TN gpm; net acid, ph 5.8, Fe 120, Mn 40 Net alkaline discharge with Fe < 1 ALD, s, aerobic construction consultation None during first two years