- Air Quality
- Civil Engineering
- Waste Management
- Water Resources
- About CEC
Obtaining permits for new mines or major expansions is tougher and more expensive than ever. Renewals bring stricter effluent and emission limits, and enforcement agencies are cracking down on compliance. The industry is challenged with managing vast amounts of environmental data and implementing systems to formalize environmental compliance programs. Engaging a reliable partner with diversified expertise helps companies meet requirements while continuing operations and investing in new projects.
CEC has successfully integrated civil and geotechnical engineering design with ecological and environmental concerns to offer a full suite of services that benefit all sectors of the mining industry. These specific service areas include:
- Threatened & endangered species assistance
- Aquatic ecology studies (e.g., benthic macroinvertebrates, fisheries, and mollusks)
- Wetland and stream delineation, impact assessment, and mitigation design
- Soil and revegetation studies
- Refuse/tailings disposal design, permitting, and inspection
- Dam/impoundment design, permitting, and inspection
- Hydrologic and hydraulic modeling
- Design of stormwater handling structures
- Erosion and sedimentation controls
- Site layouts, including road networks
- Compliance audits
- Environmental Management Systems (ISO 14001)
- Client-specific GIS and data management interfaces
- Mine subsidence investigations and remediation
- Mine closure assistance and evaluations
- Horizontal/vertical control and topographic surveys
- Construction layout and as-built/volumetric surveys
- Boundary and land title surveys
- Aerial visual inspections and aerial photography utilizing UAV technology
- Agricultural and vegetation surveys
- LiDAR ground based laser scanning
- Manual or remote control bathymetric/hydrographic surveying
- Water treatability studies
- AMD treatment plant design - passive and active
- Total Maximum Daily Load (TMDL) studies
- Pre- and post-mining hydrological studies
- Probable Hydrologic Consequences (PHC) studies
- Surface and ground water baseline and impact studies
CEC's multi-disciplined approach to mining industry consulting has led to the successful completion of a wide range of projects within the coal, aggregates and hard-rock mining industries — from design and permitting of refuse disposal areas, to water treatment studies, to assessing ecological resource impacts due to longwall mining. Specific CEC mining-related project experience includes the following:
Design and Permitting of Surface Facilities — CEC has completed permitting and design services for mining-related surface facilities such as portals, processing plants, and transportation facilities. CEC's projects have included Section 401 and 404 permitting, NPDES permitting, SMCRA permitting, and air quality permitting.
Ecological Monitoring — CEC evaluates the possible effects of mining on streams and wetlands and designs plans to mitigate those impacts. Projects have involved wetland and stream delineations, biological and water quality sampling and testing, and forested/non-forested habitat assessments related to Indiana bat suitability. Specific endangered species studies for Indiana bats have involved presence/absence mist net surveys, radio telemetry, and documentation of foraging areas, travel corridors, and nightly flight patterns.
Refuse/Tailings Disposal and Dam Permitting — CEC has performed pre-development investigations, detailed geotechnical design, and hydrologic evaluations for fills and impoundments. Projects have included performing specialized engineering analyses, such as seismic hazard assessments and permanent deformation analyses, seepage and stability analyses, dam permitting and breach analyses, MSHA and SMCRA permitting, and preparation of emergency action plans.
Surveying — CEC uses cutting-edge technology and equipment to provide a full range of surveying and geomatics services. CEC maintains an array of survey equipment, including RTK and static GPS, robotic and manual Total Stations, automatic and digital levels, and data collectors for conventional survey. CEC also utilizes small Unmanned Aerial Systems (sUAS), terrestrial LiDAR scanners, and manned or remote-controlled bathymetric/hydrographic workboats.
Water Handling and Treatment — CEC assists with the handling and treatment of water discharge from mining operations. This includes collecting water quality/quantity data, performing water balances, hydrologic modeling, water quality impact assessments, and evaluating supply and disposal alternatives. CEC has also provided the complete menu of environmental and engineering services needed for the design and construction of many types of mine water treatment facilities.
A Structured Approach for Selecting Mine Effluent Treatment Technologies
Presented by Ivan Cooper, PE, BCEE, at the 2014 SME Annual Meeting
- Managing Environmental Risk with Mitigation Banks
Ray Ewing and Dan Maltese, co-authors. Published on page 102 of the June 2014 issue of Engineering & Mining Journal.
How aggregate operators can control timelines and risks through mitigation banks
Ray Ewing and Dan Maltese, co-authors. Published on page 10 of the April/May 2015 issue of North American Quarry News.
- Mitigation Techniques - Coal News, Feb 2012
- CEC featured in Down but not out: Coal industry rallies at 2013 PCMIA/SME meeting – Mining Engineering, January 2014.
- CEC project featured: Hollywood mine drainage treatment plant – Coal Age, August 2014