We provide a suite of customized services to address highly specialized problems.

Since 1986, ECC Horizon has helped resolve thousands of environmental projects for businesses, property owners, insurers, and law firms.

Here are a just a few representative examples of projects we’ve successfully completed.

Defining client’s responsibility and options to achieve a reduced cost to closure

  • Re-directed remedial strategy from a more expensive soil vapor extraction remedy to a targeted excavation approach.
  • Developed sampling plan and lines of evidence to demonstrate to IDEM’s satisfaction that  client was only responsible for portion of the impacts observed – brought clarity to a complicated bimodal delineation map to distinguish the cVOC plume from another off-site source using compound specific isotope analysis..
  • Implementation of less costly remedy saved client approximately $500K and cut time to closure
    by 5 years

Client being charged with releasing contaminates into a public waterway.

  • Conducted thorough forensic cause and origin investigation and implemented a plan that included surveying entire area including river tributary, examining manufacturer’s processes, understanding nature of client’s products and chemicals, and studying tributary water quality.
  • Uncovered another outfall into the tributary that was unknown to authorities.
  • Presented all evidence – including the results of analytical testing to local, county and state officials.


  • Findings were accepted and our client was exonerated.
  • Resumption of operations occurred without incident.

Policyholder claimed that fire damage led to environmental losses in and around his furniture store.

  • ECC mobilized to the site within 24 hours to assess site conditions and determine if the fire resulted in environmental damages.
  • Through observation and sampling, it was determined that no environmental damage occurred to
    implement the insurance policy resulting in a savings to the carrier of $985,000.

High initial cost for remediating 3 municipal properties was compromising the city’s ability to sell
property for beneficial community use. All properties were contaminated with petroleum constituents and free product and chlorinated solvents compromised one.

  • Engineering remedial estimates by others topped $2.7 MM, and determined inadequate site characterization led to very conservative assumptions.
  • Reviewed publicly available documents to correctly identify adjacent oil refinery as source of free product impacts. Identified this other responsible party which provided an additional funding source.
  • Identified an alternative remedial approach which included using environmental restrictive
    covenants to drive down regulatory closure costs.
  • Final agreed cost for remediation and regulatory closure was $250,000.

70,000 sq. ft. commercial warehouse located on property contaminated with petroleum related
compounds from historical MPG operations and chlorinated solvents from a commercial dry
cleaning operation located across street required a remedial solution to resolve vapor intrusion

  • Remedial scope included retrofitting an active vapor mitigation system into existing building structure with a 2’ thick slab on grade foundation.
  • Sub-surface monitoring probes were installed at 6 foot depth to avoid obstruction of flow from existing foundation piling.
  • Installed 250 linear feet run of 3” diameter vapor piping notched into existing floor slab to suction side of blowers and 35 foot vertical elevation on discharge side – creating complicated blower suction pressure drop design criteria.
  • Engineered pressure balancing across blowers to adjust to variability in sub-surface airflow and flexibility to modulate blowers in the event of individual blower failure..
  • Successfully completed site remediation – Obtained closure from New York Department of
    Environmental Conservation, indoor air sampling met New York Department of Health’s quality

Cost estimates ranged to over $1,000,000 to remediate mold from a large commercial space.

  • ECC reviewed the mold assessment data as well as the resulting remediation cost estimates, and determined that insufficient sampling was undertaken to support the scope of the proposed remediation.
  • Additional mold testing revealed that remediation costs should not exceed $150,000, thereby
    leading to a cost savings of approximately $850,000.

Gasoline vapors were combusting in trenches at a construction site, threatening excavation workers
and halting work progress.

  • Immediately mobilized to the site to begin investigation and worked with public officials to mitigate emergency.
  • Determined a leaking UST was the contamination source.
  • Working closely with local regulators, mobilized special equipment to remove the UST and secure the contamination area.
  • Implemented a comprehensive soil sampling plan, excavated more than 6000 tons of contaminated
    soil and used a low cost bio-remediation method to allow the soil to be beneficially re-used as
    non-contaminated material.
  • Clean-up completed for 47% less than originally reserved.

Agricultural client needed quick resolution of a spill to get family farm back on track.


  • Provided data, petitioned and convinced IDEM to apply soil impacted by the spill as fertilizer avoiding the client’s cost of disposal and cost for purchasing replacement volume.
  • Creative approach successful in cleaning up spill saving client 20%.

Defining boundaries of hazardous versus non-hazardous excavation materials to drive lower remedial costs.

  • Established detailed staged and supervised sampling protocol to validate disposition of excavated soils.


  • Improved approach successfully reduced project costs by $65K.

Long term cost to closure was making it difficult for all stakeholders to reach agreement on remedial

  • Determined original plan to extract chlorinated groundwater for over 14 years from aquifer was flawed, groundwater impacts could not be extracted through site’s impermeable clay soils. • Determined plan to demolish an existing site building was unnecessary – the underlying soil impacts were not migrating and the soil did not require removal.
  • Designed an alternative plan to dechlorinate the groundwater impacts in place and cleanup will occur 11 years earlier than previously scheduled.
  • Remedial plan adjustment and management lowered cost to closure by $4 MM from original

Impacted soil and groundwater from a heating oil UST were located beneath a residence. Due to
logistical challenges associated with structurally supporting the home to remove the underlying
contamination, contractor costs were deemed by ECC to be excessive.

  • ECC proposed a fixed-price remediation cost estimate via injection program that was approximately $200,000 less expensive than the most competitive time and materials bid.
  • ECC’s plan called for an aggressive injection approach that would achieve compliance levels within one year.


  • ECC implemented our plan and saved the client approximately $200,000 in remediation costs
    compared to a non-guaranteed time and materials estimate.
  • The site achieved compliance levels in 1 year.