
Mining TMDL Development using MDAS
Instructors: Dr. Leslie Shoemaker, Dr. Jian Shen, Jon Ludwig, Andrew Parker, John Riverson, Teresa Divers
U.S. EPA Region 3, with the support of the West Virginia Department of
Environmental Protection (WVDEP) and Tetra Tech, Inc., has developed a
comprehensive Mining Data Analysis System (MDAS) to address Total
Maximum Daily Load (TMDL) requirements for waterbodies exhibiting
mining-related metals and pH impairments. MDAS was designed to support
TMDL development in areas impacted by any combination of abandoned
historical mining operations, currently permitted mining activities, and
considerable natural contributions. The system is capable of
efficiently simulating large watersheds with high spatial resolution for
assessment and allocation to multiple point and nonpoint sources. MDAS
integrates a geographical information system (GIS), comprehensive data
storage and management capabilities, a dynamic watershed model, and a
data analysis/post-processing system into a convenient PC-based windows
interface. Nearly 1,500 metals and pH TMDLs have been developed using
MDAS for streams and lakes throughout West Virginia.
The course is designed to introduce participants to MDAS and its
application to TMDL development for impaired waters in mining-impacted
areas. It consists of daily lecture-style presentations and extensive
hands-on computer exercises. Course instructors include MDAS developers
and engineers who have applied the system and developed mining-related
metals and pH TMDLs for more than 200 impaired rivers and lakes
throughout the country. Specific course objectives include:
- Provide a general background on mining-related TMDL issues
- Provide insight into approaches for development of approvable, defensible, and technically credible mining-related TMDLs
- Provide instruction in the use of MDAS and its application to TMDL development
Who Should Attend
Federal, state, and local government personnel and other professionals
associated with watershed management, TMDL development, nonpoint source
programs, water quality modeling, NPDES permitting, mining, and other
related programs. Participants should have an understanding of the TMDL
process and some familiarity with GIS, water quality modeling concepts,
and personal computing using the Windows operating systems.
Topics:
- Overview of TMDLs
- Introduction to Metals Issues in TMDL Development (specifically Mining and Acid Mine Drainage)
- Metals Criteria
- Overview of MDAS
- Issues and Concerns related to Mining TMDL Development (source identification, allocation considerations, data needs)
- Mining TMDL Case Studies