Tim Danhey, Biomost, "Operations and Maintenance Panel"

OM&R FOR THE MINING INDUSTRY

Tim Danehy, QEPBioMost, Inc., Mining and Reclamation ServicesCo-Authors: Ryan Mahony, Cody “ Buck” Neely, BJ Page, Shaun Busler, Cliff Denholm, Margaret Dunn

AMERIKOHL MININGZelmore System (2001)

www.biomost.com

PA AMR CONFERENCE“Collaboration is Essential”June 27, 2014State College, PA

BMI EXPERIENCE - DESIGNING AND INSTALLING PASSIVE SYSTEMS SINCE 1998 - OVER 70 SYSTEM DESIGNS COMPLETED (PASSIVE AND ACTIVE) - APPX. 60 SYSTEMS HAVE BEEN INSTALLED (PASSIVE AND ACTIVE) - OPERATE & MAINTAIN NUMEROUS PASSIVE SYSTEMS FOR INDUSTRY - TECHNICAL/OPERATIONAL ASSISTANCE TO WATERSHED GROUPS

(TAG GRANT) - DESIGN , CONSTRUCTION AND O&M SERVICES

PADCNR Jennings System

(2002)

WHY PASSIVE TREATMENT? - GENERALLY SPEAKING, PASSIVE IS CHEAPER - MINING COMPANIES DON’T MAKE MONEY TREATING WATER - REDUCES OVERALL BOND/TRUST LIABILITY - CONSISTENT TREATMENT - NOT ALWAYS CORRECT CHOICE (DIFFICULT TO “TURN UP” )

AMERIKOHL MININGErnest System (2002)5,000 T ALD

PATRIOT MINING – MT. MORRIS - PASSIVE SYSTEM PRIMARILY FOR MANGANESE REMOVAL - TMDL STREAM – MORE STRINGENT EFFLUENT LIMITS

PATRIOT MINING – KEENER - ACTIVE SYSTEM (AQUAFIX WITH MIXWELL AND PUMPING) - DYNAMIC WATER QUALITY - UTILIZE EXISTING FACILITIES TO REDUCE CAPITAL COSTS

ACTIVE CHALLENGES - LABOR COST FOR ACTIVE TYPICALLY VERY HIGH (2-3 VISITS/WK ) - CHEMICAL COSTS VARY AND CAN BE SIGNIFICANT - PUMPING AND ELECTRICAL COSTS - SLUDGE HANDLING - ROAD MAINTENANCE (SNOW PLOWING ) - SYSTEM BREAKDOWNS

HARBISON-WALKERSanborn Active (2005)

PASSIVE ADVANTAGES - MONTHLY INSPECTIONS USUALLY SUFFICIENT - TYPICALLY VERY LOW MAINTEANCE - MUCH DENSER SLUDGE (VERY LOW COMPARITIVE VOLUME) - NOT DEPENDENT ON ELECTRIC OR MOVING PARTS - CONSISTENT TREATMENT

HARBISON-WALKERSanborn Passive (2005)

PASSIVE PERFORMANCE - 10-15 MANGANESE TO ~DETECTION LIMIT 11 YEARS!

SHENANGO INC.Boartz (2003 - 2014)

PASSIVE OPERATION? - HOW TO “OPERATE” SOMETHING WITH NO MOVING PARTS? - INSPECTIONS, MONITORING & SAMPLING - TYPICALLY FLUSHING IF NEEDED (SOME AUTOMATED) - ADJUST TO VARIABLE FLOW/CHEMISTRY (IF FLEXIBLE SYSTEM)

SHENANGO INC.East Riverside (2008)

MAINTENANCE - CLEANING DITCHES & CHANNELS

HARBISON-WALKERSanborn (2014)

MAINTENANCE - PUMPING SLUDGE (VEGETATION MAY REQUIRE SPECIAL PUMP)

SHENANGO INC.Curley (2013)

MAINTENANCE - STIRRING TREATMENT MEDIA - CONCURRENT WASHING (IF AGGREGATE ONLY MEDIUM)

SHENANGO INC.East Riverside (2011)

MAINTENANCE - CLEANING TREATMENT MEDIA- WATCH THOSE PIPES!

SHENANGO INC.“Aluminator “ (2012)

IMPROVEMENTS- REPLACED PVC UNDERDRAIN WITH DR17 HDPE PIPE

- (USE GAS DRILL TO PERFORATE PIPES)- CONNECT USING FERNCOS (REGULAR OR SHIELDED)- MARK PIPE LOCATIONS

AL HAMILTON Bear Hill (2013)

TEMPORARY SUPPLEMENTAL - DEPLOY INTERIM CHEMICAL TREATMENT WHEN NEEDED - LABOR COSTS ARE SIGNIFICANTLY HIGHER - ONLY AS NEEDED IF POSSIBLE - SODA ASH BRIQUETTES (OR LIQUID CAUSTIC)

SHENANGO INC.East Riverside System(2012)

REPLACEMENT- SYSTEMS WILL NEED TO BE RECONSTRUCTED - OPPORTUNITY FOR IMPROVEMENT !- DESIGN LIFE 15 – 25 YEARS TYP.- BETTER TECHNOLOGY AVAILABLE

SHENANGO INC.East Riverside System(2012)

CONTINGENCY- BULLET HOLES AND SCRAP METAL

CONTINGENCY- BULLET HOLES AND MUSKRAT HABITAT

CONTINGENCY- RANDOMNESS

THANK YOU!