Frontier Hard Chrome Photo Gallery | Region 10 | US EPA

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Frontier Hard Chrome Photo Gallery

September 2003:
large damp dirt field with fence, building and equipment in background
Photo showing the site after all fluff soil has been removed and final grading has been completed.
photo - large damp dirt field with fence, building and equipment in background
Photo showing the site after all fluff soil has been removed and final grading has been completed.
photo - large dirt field with fence, building and equipment in backgroundPhoto showing the site after all fluff soil has been removed and final grading has been completed.photo - large dirt field with fence, building and equipment in background
Photo showing the site after all fluff soil has been removed and final grading has been completed.
August 2003:
photo - large equipment with auger drilling dirt
Auger treating hot spot to 25' depth.
photo - large truck being loaded with soil.
Fluff Loadout: Excess fluff soil is being loaded into truck for offsite disposal. This soil was sampled and analyzed prior to loadout to determine its disposal method


photo - workers gathering samples of groundwater.
Groundwater Sampling: Photo showing ESAT collecting confirmation samples of treated groundwater. Fluff soil (foreground) had to be moved out of the way to allow access.
photo - piles of soil of different colors and textures
Piles of fluff soil awaiting results from the laboratory. Lab results will determine disposal method.
Tanker near building with traffic cones in driveway.  Injection well behind building.
The ISRM wall was completed when the western most injection was completed in the street. This last injection was completed on a weekend to minimize interference with traffic.
July 2003:
dirt, concrete and scrape metal piles visible near large equipment
Photo showing piles of debris excavated from the subsurface. Debris is segregated into piles and sampled to determine appropriate disposal methods.
partially crushed tanks containing dirty yellow slabs and large digging equipment
Two buried tanks apparently used to store chromium solutions were found buried under the northern half of the FHC building. Note the color of the contents inside the tank.
fronthoe with operator digging dirt that looks in parts sandy and grey, bronze, dirty yellow, charcoal and even blue.
Soil in the area where the buried chromium tanks were discovered appears stained with contamination. These areas are within the source area treatment zone
photo - debris includes concrete slabs, poles, posts, wire, rebar, scrap iron, tanks, etc.
Debris: Metal and concrete debris removed from the subsurface to allow treatment with the auger
photo - large piece of equipment with slanted top. Large chuncks of debris would be shaken allowing soil to drop through to conveyer belt that piles dirt.
Screen Plant: Vibratory screen being used to separate soil from debris to reduce debris offsite disposal costs.

June 2003:
photo - pile of dirt with construction debris such as cement blocks, rocks, metal, etc.
debris discovered during site remediation (hanging up the auger).
photo - large vehicle with auger placing chemical reagents into the ground to stabilize the chrome
hot spot treatment (testing phase)
Test Column.JPGConstruction Fill Debris.JPG
photo - large equipment digging up concrete slabsRemoval of concrete debris in preparation for remediation.photo - large chunks of concrete with re-bar through being lifted by large equipment into dump truckDebris being loaded into trucks for off-site disposal. Much of the concrete was so badly soaked with chrome that it necessitated hazardous waste designation.photo - roughened dirt surface with two distince color tones in dirtNote chrome-stained yellow soil in foreground.Demolition preparation for cleanup was completed at the site on May 15, 2003.


May 2003
photo - concrete slab near large holes dug to reach the top of pilings
Pilings were used to support building foundations, and had to be removed before source area treatment could begin.
photo - dirt raked into piles of concrete slabs, rebar and mounds of dirt
Concrete slabs removed.
photo - dug up pilings layed flat on plastic tarp
Pilings removed.
April 2003
photo - truck, crane, drill rig near building preparing to dig well.
Installation of 6 inch injection wells north of Cassidy Building. Injection wells were installed using a sonic drill rig due to presence of cobbles at depth. Injections wells being installed to depths of 40 feet.
photo - truck near workers on drill platform.
Another view of 6 inch injection well installation. Note the closeness of the well to the adjacent building. Settlement of the building foundation was closely monitored and sonic energy input controlled as necessary to avoid consolidation of the hydraulic fill and damage to the building.
photo - large equipment removing well casing from ground.  workers watch.
Abandonment of existing 4 inch wells by Holt Drilling. The casing of the well is being removed from the ground.

Richardson and Frontier Building Demolition in January 2003.
photo - building standing with entry way in pile of scrap metal
Demolition of metal portion of Richardson Building using metal shears. Scrap metal was recycled.
photo - jawed bucket on equipment moving toward cinderblock wall as firehose sprayed toward work
Demolition of cinderblock Frontier Hardchrome Building. Water was used to control dusting.
photo -  not much of cinderblock wall remaining of flue as jawed bucket continues work
Demolition of the flue used during the plating process. This flue was one of the most contaminated areas of the site. The flue contained chromium in excess of 20,000 mg/kg.
photo - another angle of cinderblock wall of flue demolition
Additional photo of flue demolition.
photo - forklift raising beams to remove roof of shop
Dismantling of the Richardson Building. Sampling showed the Richardson Structure was not contaminated. The metal structure portion of the Richardson Building was dismantled and is being re-used.
photo - dirty concrete slabs, the former floor, being coverd by plastic
Concrete slabs are being temporarily left in place as ground cover until the underlying soil can be treated (scheduled for Summer 2003). The slabs were covered in plastic to prevent contact with rainfall.
photo - larger concrete caps pulled out of ground and temporarily resting on concrete slab
Photo showing a piling cap (square piece of concrete with round depression). Underground piling supporting the building foundation were found and will have to be pulled prior to soil treatment.
photo - clear sky day with fence surrounding plastic covered slabs of cleaned up work area
Photograph showing the Frontier Hardchrome Building site after building demolition and site cleanup.
photo - another view of tarped and fenced landscape where structure was
Street side photograph showing site appearance after Frontier Hardchrome structure demolition was completed.


This pilot test for the in-situ reduction of chrome took place in October, 2002.


image - piping and valves and buckets along plywood wallProcess control and monitoring equipment used to conduct the
ISRM pilot test at FHC.
image - monitoring equipment and wiring in portable buildingSample collection and field parameter monitoring equipment housed in the mobile laboratory. Sample streams from site monitoring wells are routed into this central location for real-time measurement of field parameters (DO, pH, ORP, EC, Temp.) and dithionite concentration.image - trailer, tanker and cabling in front of garageISRM pilot test site showing injection and monitoring wells,
the process control and monitoring trailer, and the chemical tanker truck.
image - trailer door open and monitoring tubing connectedISRM pilot test site showing injection and monitoring wells
and the process control and monitoring trailer.
image - tanker parked next to monitoring trailersISRM pilot test site showing injection and monitoring wells,
the process control and monitoring trailer, and the chemical tanker truck.
image - trailers parked near wellsISRM pilot test site showing injection and monitoring wells,
the process control and monitoring trailer, and the mobile laboratory
trailer where aqueous samples are collected and analyzed.



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