Remedial Design/Build/Operate

 

Remedial Action

• Remedial Action Planning
• Remediation System Construction and Upgrade
• Soil Removal and Disposal
• Mold, Asbestos, and Lead-based Paint Abatement
• Construction Management
• Documentation and Reporting

 

OTIE has delivered environmental remediation construction using innovative and traditional technologies to achieve customers’ goals. OTIE offers staff certified in the USACE three-phase construction QC procedures. For several construction projects, OTIE has provided value engineering to reduce overall cost and deliver added value for our customers.

 

Operation & Maintenance

 

Operation of Treatment Systems

• Performance evaluation and system optimization
• Process troubleshooting
• Process modification and upgrade

Long-Term Monitoring and Reporting

• Multi-media process monitoring
• Groundwater well monitoring
• NPDES permit compliance monitoring and reporting

Web-based Operation Monitoring

• Remote sensing process monitoring and control

Data Management

• Data analysis, performance evaluation, and reporting
• Electronic data deliverables
• Secure web-based database access

 

OTIE provides O&M for remediation system facilities nationwide. We provide system start-up and shakedown, long-term operations, process optimization, compliance monitoring, and reporting. We have written O&M manuals and performed process optimization for systems that we have designed, constructed, and operated, as well as customers’ existing systems.

 

Remediation System Optimization

 

Technology Optimization

• System process review and evaluation
• System balancing and performance tuning
• Innovative technology/treatability testing

Value Engineering

• Technical design review and evaluation
• Negotiation support

Negotiation and Permitting Support

• Monitoring streamlining and optimization
• Demonstration of no further action required
• Five-year reviews
• Closure negotiation support

 

OTIE performs remediation system optimization for public and private sector customers to maximize the effective return on the funds invested in remediation. We have applied optimization to system monitoring, technology selection, technology configuration, and system operations.

 

System monitoring optimization—OTIE has successfully negotiated approved reductions in groundwater monitoring programs to focus monitoring on fewer, but strategically located, wells to be analyzed for fewer, but critical analytes—retaining monitoring goals and quality while reducing monitoring costs.

 

Technology selection optimization—OTIE has conducted in situ treatability and pilot testing of innovative remediation technologies to select the most cost-effective approach, tailored to site-specific conditions. We have used value engineering to renegotiate regulatory approval of innovative in-situ technologies to reduce overall life-cycle remediation costs.

 

Technology configuration optimization—OTIE has modified existing remediation systems to increase operations uptime, enhance performance, and reduce the time to achieve closure. For example, we have negotiated incremental closure of systems proven to have achieved remedial goals so operations could focus on remaining hot spots. We have converted groundwater treatment systems to zero-discharge to eliminate NPDES permits and increase operational reliability.

 

System operations optimization—OTIE has eliminated process bottlenecks, optimized chemical dosing systems, and fine-tuned conditions to enhance performance.

 

	OTIE designed and constructed an $18M electrical resistance heating (ERH) remedial system at the Pemaco Superfund site in Maywood, CA. We provided RI/FS, remedial design, risk assessment, treatability study/pilot testing, construction, and O&M of the system for seven years coordinating closely with EPA Region 9 and the City of Maywood, and interacting with concerned citizens and environmental activists. OTIE provided real-time information to all stakeholders through a secure website linked to a 3-D temperature monitoring system with 600 thermocouples that continuously monitored subsurface temperature. EPA Region 9 filmed a documentary on Pemaco for internal training purposes to showcase the first use of ERH for a Superfund-lead Remedial Action.
	OTIE provided a $6.2 remedial action involving landfill closure and O&M with POL and PCBs at the former Tongue Point Naval base in OR. We constructed a 1,600 LF soil-bentonite slurry wall vertical containment barrier and leachate collection system; restored the shoreline prior to winter, and installed the landfill cover. We restored the site, including wetland rollsod and specialty plantings in the tidally-influenced emergent marsh zones. OTIE performed one year of LNAPL recovery system O&M with operational “up-time” greater than 95%.
	For eight years, OTIE has provided RAO/LTM for Seymour Johnson AFB (SJAFB), NC, under seven delivery orders through two contracts. OTIE completed an innovative design/build operate RA system at SS-12 near the flightline. The SS-12 treatment system addressed a JP-4 free-product plume using active interception trenches, two passive interception trenches, and an air-sparge curtain. This tiered remediation approach provided a fast-tracked, cost-effective remedial action with minimal disturbance to flightline operations. We also performed LTO/LTM for four soil and groundwater remediation systems at SJAFB.