Barnes & Tucker Project

Transcription

1 West Branch Susquehanna Restoration Symposium April 27-28, 2007 Barnes & Tucker Project Daniel Sammarco,P.E. Jon Smoyer, P.G. DEP-Bureau of Abandoned Mine Reclamation Cambria Office Project Team: Art Crossman Darryl Audia Pat Webb Bob Oshaben Ken Bobak Max Scheeler

2 Outline A. Background B. Project Assessment - inter-basin transfer - Blacklick Creek - West Branch Susquehanna River C. Project Design D. Q&A

3 X Project Location

4 A. Background existing plant

5 Mahaffey, Pa Curwensville Dam

6 DEP explores long-term operation alternatives. Barnes & Tucker filed bankruptcy in 2001 Cleans Streams Foundation takes over operation of the Dumans Plant

7 a Win Win Scenario more efficient treatment needed existing pumping costs are high trust fund is limited mine pool resource recovery agricultural consumptive use demands approx. 25 miles of stream restored allows for increased low flow releases from the Curwensville reservoir SRBC, through a PA General Assembly grant, will contribute $3.9 million towards long-term O&M.

8 B. Project Assessment - Inter-basin Transfer Eastern Continental Divide Proposed New Treatment Area x 1970 Blow out Area Duman Treatment Plant OSM: Hawkins,Perry

9 Inter-basin Transfer (IT) 1. PA law requires projects involving IT to have a NPDES permit. 2. Assessment of watershed basins (Susquehanna and Ohio ) West Branch Susquehanna Ohio River Basin > restore ~25 miles stream > BAMR commitment to treat the Red Mill, Vinton #6, > addresses water demand issues and Wehrum discharges > continue AML and AMD remediation projects

10 Ohio River Basin Susquehanna River Basin

11 B. Project Assessment Blacklick Creek ph 3.7 Total Iron: 8.1 mg/l Total Al: 13.6 mg/l Total SO 4 : mg/l Alkalinity: -150 mg/l Avg. Flow: 1450 mg/l ph 7.3 Total Iron: 0.50 mg/l Total Al: 0.28 mg/l Total SO 4 : 62.6 mg/l Alkalinity: 38 mg/l ph 7.9 Total Iron: <.30mg/l Total Al: <.50 mg/l Total SO 4 : 34.3 mg/l Alkalinity: 55 mg/l

12 Barnes & Tucker Lancashire No. 15 ph 7.4 Total Iron: 1.5 mg/l Alkalinity: 194 mg/l Avg. Flow: 4689 gpm THAT S AN AVERAGE OF LBS/DAY ALKALINITY LOST FROM THE BLACKLICK WATERSHED! Eastern Associates Coal Co. Colver Plant ph: 7.8 Total Iron: 1.90 Alkalinity: 58 mg/l Avg. Flow: 2430 gpm

13 North Branch Blacklick Creek above Elk Creek ph 7.3 Alkalinity: 31 mg/l Total Iron: <0.3 mg/l Total Al: < 0.3 mg/l Very low (< 200 gpm) flow Total during Al: dry 0.5 mg/l periods due to groundwater recharge lost to underground mines Elk Creek Downstream at Mouth ph Alkalinity: 94 mg/l Total Iron: 0.93 mg/l Total Al: 0.55 mg/l TSS: 5.0 mg/l Without B&T discharge Elk Creek at mouth: ph 7.2 Alkalinity: mg/l Total Iron: mg/l

14 North Branch Blacklick below Elk Creek ph 8.0 Alkalinity: 95 mg/l Total Iron: 0.55 mg/l Total Al: <.5mg/l Without B&T discharge, North Branch Blacklick below Red Mill: ph 6.9 Alkalinity: 18 mg/l Total Iron:.92 mg/l Total Al: 0.6 mg/l Red Mill Discharge Commercial No. 16 mine ph- 3.5 Hot Acidity: mg/l Total Iron: 52 mg/l Total Al: 7.7 mg/l Avg. Flow: 210 gpm

15 North Branch above Vintondale Boreholes Vintondale Discharge from ph Vinton 7.3 #6 mine ph- 4.9 Alkalinity: 46 mg/l Hot Acidity: Total 307 mg/l Iron: 1.7 mg/l Total South Iron: Branch 136 Total of mg/l Blacklick Al: 0.5 mg/l Creek Total ph Al: 5.0 mg/l Avg. Hot Flow: Acidity: mg/l gpm Total Iron: 2.21 Total Al: 1.93 NO BUFFERING HELP HERE!

16 Blacklick Creek Above Wehrum Shaft ph- 6.4 Hot Acidity: 11.4 mg/l Total Iron: 2.08 mg/l Total Al: 1.17 mg/l Blacklick Creek below Wehrum Shaft ph 6.4 Hot Acidity: 14.0 mg/l Total Iron: 4.8 mg/l Total Al: 1.5 mg/l Blacklick Creek without B&T s water: ph 6.2 Acidity 20 mg/l Total Iron 5.5 mg/l Total Al 1.7 mg/l Wehrum Shaft Discharge ph 3.4 Hot Acidity: 298 mg/l Total Iron: 68 mg/l Total Al: 20.1 mg/l Avg. Flow: 609 gpm

17 WHAT S THE SOLUTION? treat Wehrum mine Vinton #6 mine Red Mill Mine Reclaim and remediate the refuse piles at Colver. Continue AMD remediation efforts in the South Branch Blacklick

18 B. Project Assessment West Branch Susquehanna

19 Barnes-Watkins Refuse Pile project

20 West Branch- Net Alkalinity Barnes-Watkins Refuse Pile, Barnes and Tucker, and Bear Run Projects Pre Post West Branch -Total Al Barnes-Watkins Refuse Pile, Barnes and Tucker, and Bear Run Projects Pre Stream Mile increase in Net Alkalinity mg/l mg/l Post 92% reduction in Al t Stream Mile West Branch - Total Iron Barnes-Watkins Refuse Pile, Barnes and Tucker, and Bear Run Projects Pre Post 82% reduction in Fet mg/l Stream Mile

21 C. Project Design Proposed Site Location

22

23 C. Project Design Exploratory Drilling Program

24 /2/2006 0:00 8/21/2006 0:00 10/10/2006 0:00 11/29/2006 0:00 1/18/2007 0:00 3/9/2007 0:00 4/28/2007 0: /2/2006 0:00 B1 - BOREHOLE (PATTERSON ROAD) Draw Down Rate = '/Day Draw Down Rate = '/Day 1472 DATE 10/6/ /5/ /4/ /3/ /2/ /1/2006 9/30/2006 9/29/2006 9/28/2006 9/27/2006 9/26/2006 9/25/2006 9/24/2006 9/23/2006 9/22/2006 9/21/2006 9/20/2006 9/19/2006 9/18/2006 9/17/2006 9/16/2006 9/15/2006 9/14/2006 9/13/2006 9/9/2006 9/12/2006 9/11/2006 9/8/2006 9/10/2006 9/7/2006 9/6/2006 9/5/2006 9/4/2006 9/3/2006 9/2/2006 9/1/2006 8/31/2006 8/30/2006 8/29/2006 8/28/2006 8/27/ /26/ /25/ /24/ /23/ AVERAGE ELEVATIO 0 8/21/ /10/ /29/2006 1/18/2007 0:00 0:00 0:00 0:00 3/9/2007 0:00 4/28/2007 0:00

25 Active Treatment - Dense Sludge Technology Q design = 10.5 MGD Polymer Mine pool Pre-Aeration Basin Ferrous Reactor Basin Floc. Clarifier/ Thickener Hydrated lime Sludge Conditioning Reactor Polishing Pond Underflow disposal to WBSR

26 D. Q&A existing proposed Project Team: Art Crossman Daryl Audia Pat Webb Bob Oshaben Ken Bobak Max Scheeler

27 Hydrology Analysis- Plant effluent 100 year flow = 2400 cfs Project flow ~ 16 cfs

28 No Monthly Data No Monthly Data Ave. Maberry Pump Rate (mgd) Maberry ( ) SRB Consumptive Use Need (mgd) Excess (+) / Deficit (-) Resultant (mgd) 1/02 2/02 3/02 4/02 5/02 6/02 7/02 8/02 9/02 10/02 11/02 12/02 1/03 2/03 3/03 4/03 5/03 6/03 7/03 8/03 9/03 10/03 11/03 12/03 Total Month 2 Year Flow Rate (mgd