Author Archive

Mississippi Phosphates Corporation (MPC) – Pascagoula, MS

KEMRON was awarded a task order for the remediation of the former Mississippi Phosphates Corporation (MPC) located in Pascagoula, MS. The site has been proposed to the National Priorities List (NPL). MPC began operations in the 1950’s manufacturing fertilizer and eventually expanding to encompass over 1000 acres and includes a phosphoric acid plant, a diammonium phosphate plant, a sulfuric acid plant, and associated storage warehouses. The facility also includes a wastewater treatment plant along with a series of support structures. Material storage areas include two phosphogypsum waste piles (gypstacks) covering over 340 acres and wastewater storage ponds containing over 700 million gallons of low pH wastewater. Contaminants include ammonia as nitrogen, arsenic, cadmium, chromium, copper, lead, nickel, and zinc. Requirements under this task order include operation and maintenance of wastewater storage units, operation and maintenance of the wastewater treatment plant, pond management and repair and maintenance of all associated equipment.

Wastewater treatment and collected storm water treatment activities is conducted in two wastewater treatment plants along with discharge monitoring, and water quality sampling associated with plant operations and permit compliance. The two-wastewater treatment plants include a mechanical treatment system comprised of a double lime treatment process and a second unit referred to as the in situ treatment system comprised of a series of canals where chemical addition is used to adjust pH. KEMRON is treating 1 million gallons per day through the mechanical plant; 4 million gallons per day through the in situ system within the existing canals. KEMRON also conducts all inspections, pond level measurements, and refueling activities associated with pump operations.

SAME JETC 2018

KEMRON is eager to attend the upcoming Society of American Military Engineers Joint Engineer Training Conference (JETC)! Set up a meeting with John England and Lou Ehrhard while you are there! See you in Kansas City for #SAMEJETC18! www.samejetc.org
 

DCHWS 2018

KEMRON is excited to present on Successful Combined Remedy of In-Situ Large Diameter Steam Mixing and Solidification at DCHWS 2018 on Friday, April 20th at 10:00 am. Meet with John Dwyer, Lou Ehrhard and John England while you are there!

New Hire – Brett C. Hensley, RPG

We are pleased to announce that Brett C. Hensley, RPG has joined KEMRON as Program Director to lead and support the continued expansion of our nationwide service offerings. Headquartered in Atlanta, KEMRON is a nationally recognized environmental consulting and remediation firm whose nationwide offices serve industry and government, delivering solutions and providing expertise in response to complex environmental business challenges.

Brett will be responsible for operational delivery and service excellence as an Environmental, Health and Safety (EHS) Leader to our existing and growing client base providing safe, efficient, cost effective business solutions as a business partner and trusted adviser. Our services address complex environmental problems to reduce regulatory risk, remove or remediate contaminants and convert impacted properties into marketable assets.

Brett has more than 30 years of multi-disciplinary experience in environmental assessment, corrective action strategies, decommissioning and overall operational management and leadership across North America. In his prior role with Bureau Veritas, as Vice President and Director for the HSE Division, Mr. Hensley was responsible for building teams, developing and executing strategies and tactics to drive business growth and optimized operational performance.

Congratulations – John M. Dwyer, President

The Board of Directors of KEMRON Environmental Services, Inc. is pleased to announce the promotion of John M. Dwyer to President of KEMRON. Headquartered in Atlanta, KEMRON is a nationally recognized environmental consulting and remediation firm whose nationwide offices serve industry and government. John will continue to lead the corporation in strategic growth and market expansion. As President, his role will include corporate governance and financial positioning as well as formulating strategic plans for new business opportunities.

As Vice President, John led KEMRON through significant market expansion, guiding the firm through our recent series of high performing and profitable years. He was instrumental in our conversion from a privately held company to a 100% employee-owned ESOP corporation. During his 37-year tenure, our industry and company have evolved significantly and John has continued to position KEMRON as an industry leader, expanding the corporation into new and exciting market areas.

We congratulate John on this well-deserved promotion. Under his continued leadership, we look forward to many more years of KEMRON thriving as an industry leader and innovator.

New Hire – Joseph A. Klemp, P.G.

We are pleased to announce that Joseph A. Klemp, P.G. has joined KEMRON as a Senior Project Scientist. He will be joining KEMRON’s consulting services group supporting the continued expansion of our nationwide service offerings. KEMRON, a small business in the environmental remediation market, provides a nationwide resume of support to the federal government and private industry providing expertise under both RCRA and CERCLA. As a Senior Project Scientist, Mr. Klemp will be supporting Performance Based, Cost Reimbursable and Fixed Price contracting proposal development for commercial, municipal and Federal proposals, as well as technical and management support on US Army, USACE, Navy, and other Federal initiatives.

Fort Ord

KEMRON was awarded a five-year, $84 million CPFF and FFP hybrid task order to clean up munitions and explosives of concern (MEC) and hazardous and toxic waste (HTW) in site soils at the former Fort Ord in Monterey, California. The scope of work includes mechanical and manual clearing of vegetation, prescribed burning of vegetation, surface MEC removal, subsurface MEC removal, digital geophysical mapping, advanced classification geophysics, and removal, certification, and recycling of munitions debris (MD) and range-related debris. Various other work tasks within the scope include provision of an Administrative Records Coordinator in the Army’s BRAC office on site, managing several complex databases, managing two project websites, preparing the CERCLA 5-Year Review report, and performing various erosion control projects across the former Impact Area.  KEMRON is managing this program under our earned value management system with a WBS structure of several hundred unique tasks and associated cost codes.

The following major work elements (projects) comprise the work under this contract:  Impact Area Munitions Response Area MEC Remediation; Bureau of Land Management Area B MEC Remediation; Basewide Range Assessment (HTW soil remediation); Erosion Control at Various Range Sites; various Restoration projects: Advanced Classification Geophysics remediation and technology pilot study projects; MMRP Database, GIS and Website Management; and Biological Support.

KEMRON has performed both mechanical and manual mastication of planned fuel breaks for planned prescribed burns in the former Impact Area and nearby Bureau of Land Management (BLM) Area B.  Through 9/17, over 600 acres of containment lines have been cleared of vegetation using two subcontractors with Feller Bunchers and two subcontractors with 7-8 person manual cutting teams.  Manual cutting also included significant brush clearing and tree limbing of canopies up to 8 feet above ground surface, so that the risk of “crowning” during prescribed burns would be minimized.  All manually-cut vegetation was collected and stockpiled for two different chipping operations.  Chipped material has been reused all across the Impact Area for various erosion control projects.

KEMRON has completed all field work at Impact Area Unit (IA) 5A (33.4 acres), Unit 09 (81 acres), Unit 11 (62 acres), Unit 12 (107 acres), Unit 23 (347 acres), Unit 25 (95 acres), and Unit 28 (101 acres).  We have completed portions of the following IA units:  Unit 31 (57 acres), Unit 13, (17 acres), Unit 17 (4 acres), and Unit 20 (10 acres). KEMRON has recently completed performing field work for a portion of BLM Area B, Unit A (55 acres), and primary containment lines for future prescribed burns in BLM Unit B (81 acres) and Unit C (64 acres). The work in these units included vegetation cutting, grid/boundary staking, and surface MEC removal.  DGM is now ongoing in these units. Also ongoing is the completion of 2 cut-only units in BLM Area B, Unit B-2A (72 acres) and Unit B-3 (169 acres).  KEMRON has also finished preparations for the prescribed burning of up to 5 units in 2017, including containment line preparation, aerial and ground support staffing, wildland fire training, dip tank and piping/pumps setup, and coordination with the Army.  These complex and extensive burn preparations were completed precisely on the schedule established several months ago to be “burn-ready.”

KEMRON has completed the digital geophysical mapping (DGM) of over 720 acres in the Impact Area and BLM Area B since the inception of the project.  A towed array with three EM-61 sensors is utilized to prepare the subsurface anomaly maps that are eventually provided to the BLM and used for decision making regarding subsurface MEC removal efforts.  Some person-portable DGM surveys have also been conducted in areas of special biological concern (eg, ponds) and to gather information around obstructions that was not able to be collected with the towed array assembly (eg, tree clusters).

KEMRON has performed several subsurface MEC removal projects on Fort Ord, including the Unit 23 New Access Routes, Units 1, 2, and 3 New Fuel Break Roads, Chinook Road Fuel Break Expansion, Nowhere Road Realignment, and Little Moab Road Construction.  To date, over 330,000 pounds of MD have been removed, sorted, and certified for offsite smelter recycling, and 4,300 MPPEH items have now been collected and destroyed/to be destroyed in the course of numerous demolition operations, both consolidated shots and blow-in-place shots.

KEMRON employs an extensive quality control (QC) program to assure accurate and complete field activities and data collection.  USACE’s 3-phase QC process is employed for every field activity in each Impact Area or BLM Area B unit, beginning with the conduct of a thorough preparatory meeting.  All field personnel and managers, including client representatives, attend these kickoff meetings, and a detailed agenda covers specific work task processes, procedures, governing documents, biological protection issues, and safety issues.  As the work proceeds, the required series of inspections from initial to final work stages by the project’s Contractor Quality Control Systems Manager (CQCSM) with client representatives is performed and documented.

For munitions cleanup QC, the project Unexploded Ordnance Quality Control Supervisor (UXOQCS) places QC seeds in near-term grids to be cleared with a target find rate of 1 QC seed per team per day.  Through 9/17, spanning a period of 2.25 years, a total of 1,485 QC seeds have been recovered by KEMRON’s UXO teams with zero misses.  The QC seed recovery rate to date has been 0.95 QC seeds found per team per day.  In addition, 630 QA seeds, placed by USACE’s OESS, have also been recovered by KEMRON’s teams without any misses to date.  The UXOQCS also personally sweeps a minimum of 10% of the grids by all teams as a further QC check on completeness, and he continually observes and coaches field team leaders and individual technicians on surveying techniques.

Prescribed burning for vegetation removal is a large part of the KEMRON scope of work for Fort Ord.  All major burn subcontractors have been procured through KEMRON, including Burn Boss, Air Ground Operations Supervisor, air-ground communications, ignition and suppression helicopters, wildfire ground crews and fire engines, water trucks, other equipment, dip tank management staff, security staff, UXO staff, and others.  When a meteorological window (for optimum smoke behavior to minimize local impacts) presents itself, KEMRON has only 48 hours to assemble the entire burn support team on site, with key partners coming from as far away as central Oregon.  KEMRON’s Burn Boss and ASGS work closely with the Incident Commander, the Presidio of Monterey Fire Chief, on burn day operations.

KEMRON has successfully completed the innovative subsurface remediation of large, near-surface ordnance items in Units 11 and 12 using advanced classification (AC) geophysics (Metal Mapper) in order to safely conduct burns of these units.  That AC project included 688 target excavations and the subsequent removal and destruction of numerous large and medium-sized ordnance items.  Other AC projects to complete remedial actions involving TEMTADS and Metal Mapper 2×2 are ongoing.

USACE has included significant erosion control and range restoration projects within the KEMRON scope of work. Many of these projects have already been completed, with most including clearance of ordnance to depth prior to beginning site earthwork.  KEMRON has also completed construction of the approximately 1-mile long Little Moab Road in BLM Area B.  This roadway was brand new construction over some challenging, hilly terrain, and the project included some adjacent erosion control measures to protect nearby biological resources and preserve the roadbed for a longer period of time.  In conjunction with the Army and BLM, KEMRON designed the road alignment and then performed the earthwork, base compaction, rock placement, and final grading in the field.

KMERON is also engaged in HTW cleanup activities at Fort Ord.  The Basewide Range Assessment (BRA) program is a final step after the completion of MEC remediation activities to carefully examine site soils for both lead and explosives contamination.  A combination of historical site research, known range usage, current site features, other site reconnaissance, and then, if warranted, multi-composite soil sampling a varying depth intervals is conducted to thoroughly examine the potential for HTW contamination.  Through 9/17, KEMRON completed evaluations of 2 IA units (with 1 successfully petitioned for no further action without any sampling), was currently evaluating soil sampling results for 1 unit, and was preparing sampling work plans for 3 additional units.

Watch a controlled detonation below. 

Emory River Ash Pond Site

KEMRON was contracted to perform a dewatering study for coal ash from the Emory River Ash Pond Site. The objectives of the treatability study included: 1) evaluate the potential for dewatering of the site material (Ash slurry), 2) provide information for users of the study to determine the scale of operation required, 3) evaluate filtration effectiveness of free liquids removed from the site material, and 4) evaluate the handling characteristics of the site materials.

All treatments performed during the treatability study were based on discussions with the client and KEMRON’s experience treating similar types of sludges. After initially characterizing the moisture content, bulk density to confirm the ash slurry represented the ash at the site, The ash slurry provided to KEMRON already contained a treatment of 2% polymer. Therefore, KEMRON proceeded to the Treated Dewatering Evaluation phase of testing. Filter press testing was performed to evaluate the reduction in moisture content that can be achieved by the application of a positive pressure to the untreated ash material. Bench-scale testing was performed at a positive pressure of 150 pounds per square inch (psi) using a Baroid filter press apparatus designed to simulate a plate and frame filter press.

KEMRON generated a 20 % solids ash slurry using site groundwater ratio and used three filter media in the preliminary evaluation. The filtering medium was a coarse grade filter paper with a pore size of 40 micron (um), 20 to 25 um, and 10 um. Filter press testing was performed at a positive pressure of 150 pounds per square inch. The time to reach breakthrough (either no water drained or air blew through drainage) was recorded. Each filter cake was then removed, weighed, measured, and subjected to moisture content testing, bulk density testing, and subjective visual and manual handling evaluation. The objective of the handling evaluation was to determine if the material can be handled by heavy duty machinery and/or stacked.

Based on the results of evaluation, the use of filter press technology was effective in reducing the ash slurry to a relatively dry material which can be stacked, loaded, and transported.

study revealed that the use of a 20 to 25 um filter media and a 40 um filter media increased the 20 % solids ash slurry to an approximate 80 % solids material, with no free liquid. The percent solids of the filtrate significantly increased from 0.88 % to 5.5 % in the 20 to 25 um and 40 um samples, respectively.