El Capitain Environmental Services | Experience
15264
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Experience

 Over Two Decades of Experience

El Capitan has over two decades of extensive remediation experience of former manufacture Gas Plants (MGP) Sites.  It has remediated and restored dozens of MGP sites for all major utility companies in California including Southern California Gas Company, San Diego Gas and Electric, Edison, and Pacific Gas and Electric Company.  El Capitan has also remediated a few large MGP Sites for Arizona Public Services.

  Site Examples

click on any photo to enlarge

Southern California Gas Company Former Aliso MGP Site,
Los Angeles

Shoring of an active MTA maintenance building during the remediation by a non-vibratory method using bucket auger drilling and cement Slurry piles to facilitate the removal of impacted soil to ground water level 30 ft deep.  (Photo shows the backfilling of the saturated zone with pea gravel)

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Odor, VOC, and hydrogen sulfide control during subsurface excavation by in-situ vapor extraction and an emission control system consisting of a combined low temperature scrubber for hydrogen sulfide followed by high temperature thermal oxidizers for aromatic VOCs and methane.

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Dust control utilizing both high pressure spray and fire hose during the excavation of the impacted soil

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Installation of a multi-layer plastic vapor barrier along the a boundary of the excavation not accessible to cleanup at this stage

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Reaching the impacted ground water approx. 30 ft bgs and excavating the impacted saturated soil (the ground water zone was treated with Oxygen Release Compounds and backfilled with gravel)

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Reaching the impacted ground water approx. 30 ft bgs and excavating the impacted saturated soil (the ground water zone was treated with Oxygen Release Compounds and backfilled with gravel)

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Reaching the impacted ground water approx. 30 ft bgs and directing the floating product to a corner for removal with adsorbent pads prior to completion of backfilling the saturated zone with gravel

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Park Avenue Elementary School
– Removal of Contaminated Soils & Waste Material

BMP:  Stormwater BMP’s, Covered Stockpiles, and Dykes after Heavy Rain

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BMP:  Loading Zone covered with Plastic Sheets to Prevent Soil Carry over

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Gasoline Line:  Potholing and Uncovering High pressure Underground Gasoline line

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Gasoline Line:  Potholing and Uncovering High pressure Underground Gasoline line

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Shrinkwrap:  Preventing Impacted Dust from Entering School Buildings by Wrapping the Buildings with Shrink-Wrap for the Duration of the Remediation

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Shrinkwrap:  Managing Stockpiles and assigning number to each one for profiling

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Gasline:  Shoring and Removing Impacted-Soil around High-Pressure 30” Gas line

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Gasline:  Shoring and Removing Impacted-Soil around High-Pressure 30” Gas line

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Shoring:  Shoring to Excavate Impacted-Soil Adjacent to High Pressure Underground Fuel Line

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Shoring:  The High Profile Project was inspected By LAUSD Superintendent

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