Abatement | Demolition | Contaminated Soils
Nearly 100-year-old school building in LaSalle destroyed to make way for progress

Nearly 100-year-old school building in LaSalle destroyed to make way for progress

A construction worker douses the wreckage as clouds of dust and debris rise up from the demolition at North Valley Middle School on Wednesday morning in LaSalle. The Valley Re-1 School District demolished the old North Valley Middle School building in LaSalle Wednesday morning. The building, which was nearly 100 years old, sat south of the main building at 300 2nd Ave. District Superintendent Don Rangel said it was used for classroom space through the end of the first semester of this school year and is being replaced as part of the bond the district passed in 2016. The new building, Rangel said, will be open by the start of the next school year. View Full...
Ebbs and Flows of Water and Coal Tar Remediation in Denver

Ebbs and Flows of Water and Coal Tar Remediation in Denver

An elaborate dewatering and contamination removal system in Denver, Colorado, United States (US), was used to successfully remediate a construction site at Confluence park, found to be polluted with coal tar. Julie Wanzer explains how ECI Site Construction Management and Earth Services & Abatement, Inc. coordinated the cleanup of contaminated soil and water while minimizing project costs and environmental effects. View the story...
Confluence Park and It’s Journey

Confluence Park and It’s Journey

The Confluence Park Soil and Water Remediation project has hit a couple of snags throughout their journey to completion. One of those being the discovery of coal tar in May 2015 causing serious issues since coal tar is known to contain human carcinogens that are toxic to aquatic life. This prompted the collaboration with ESA. In order remove the coal tar they had to dewater the site and, once dry, remove the contamination, taking on the added risk of the environmental impacts of the project. Find out more about this project and ESA’s involvement here. Image courtesy of...
Earth Services & Abatement (ESA) Completes Water and Coal Tar Remediation at Confluence Park

Earth Services & Abatement (ESA) Completes Water and Coal Tar Remediation at Confluence Park

Confluence Park was created in 1974, after a public- private partnership comprised of the City and County of Denver and the Greenway Foundation formed to reclaim the South Platte River from a dumping ground to a recreational area. Since the official dedication in September of 1975, the area has continued to grow through several additions, the latest of which includes the visioning of the Confluence Park 2013 Master Plan. In May of 2015, coal tar was discovered, which shut down the project for 15 months. ESA was called upon to dewater the site and, once dry, remove the coal tar contamination, taking on the added risk of the environmental impacts of the project. View the full story...
Owners of an Abandoned Sugar Factory in Colorado Save Millions in Demo Work

Owners of an Abandoned Sugar Factory in Colorado Save Millions in Demo Work

Open-air demolition process reduces price tag by more than 50% For five years, Schafer conducted extensive research and worked a complex series of proposals with the Colorado Dept. of Public Health and Environment (CDPHE). Several abatement and demolition firms bid on the project, intending to use traditional methods, fully containing the structure in poly sheeting and then demolishing the structures after all asbestos had been removed. The costs were astronomical, ranging from $7.3 million to $11 million. Earth Services & Abatement (ESA) proposed an alternate plan that might, if successful, save Amalgamated millions of dollars. Central to the problem was the mill building. According to Rod Schafer, the building was like a city within itself. “It housed its own powerplant, huge boilers and rusted machinery. The upper floors were collapsing. Engineers and the local fire department assessed the building, and calculated what would be necessary to rebuild parts of the structure to make it sound enough to proceed with the asbestos abatement,” Schafer said. The customary method for abating the mill building would have been first to enclose it, abate the asbestos and then demolish the building. However, there were tremendous safety concerns related to abating the main mill structure. Walls were collapsing, floors had dangerous penetrations and handrails were mangled and broken. In short: it was unsafe to abate. ESA thought there must be a safer way that would also be more cost-effective, so ESA teamed up with Schafer and CDPHE to devise a safer process that would cut costs by several million dollars. ESA had two main challenges: get the local landfill to approve a one-time asbestos...