National Environmental Consulting firm building lifetime relationships with our clients and employees

Using many of our core services, including air quality, biogas and recycling and processing facility engineering, we serve multiple markets from alternative energy to solid waste

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BioCNG Vehicle Fuel Project – Organic Waste Recycling Facility at the Sacramento South Area Transfer Station

Our patent-pending BioCNG system will use about 100 scfm of gas from a food waste digester, which will yield 450 gallons of gasoline equivalent each day. The fuel will be used in waste hauling trucks. Learn More

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Our extensive solid waste experience helps clients transition to alternative organics management methods

Incorporating aerated static piles or anaerobic digesters, we can help you through the feasibility, permitting and design process to get the most out of these resources.

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Our Services

From concept to completion, Cornerstone provides a range of specialized services to meet the needs of our clients.
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Air Quality

Achieving compliance cost-effectively, while supporting business operations

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Biogas & Landfill Gas

Experts in collection, control, and beneficial re-use

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Environmental Planning & Compliance

Skilled planning and compliance services over a wide range of industrial and commercial sectors

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Hydrogeology

Setting the stage for effective site investigation, remediation, expansion, or reuse

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Landfill Engineering & Design

Time tested solutions and innovative techniques to enhance environmental performance while improving the bottom line

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Operations & Maintenance

Focusing on efficient, safe, and compliant operations

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Remediation

Practical experience helps clients define exit strategies

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Site and Civil Design

Solutions that are integrated with overall facility design and maximize our clients’ assets

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Transactional Services

Understanding and quantifying project value, risks, and upside potential

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Transfer, Recycling, & Processing Facilities

Maximizing operational and asset efficiency, profitability, safety, and durability

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National Presence

Serving large and small clients across the U.S. from a network of regional offices, we offer perspective and knowledge of local business and regulatory issues, and incorporate successful regional, national, and international solutions.

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Spotlight

Cornerstone Environmental Opens a New Office in Portland, Oregon!
Cornerstone Environmental is pleased to announce the opening of its Portland, OR office. Learn more!

Happy Birthday CornerPost!
Cornerstone’s blog, CornerPost is celebrating its first birthday – check out more than 25 interesting and thoughtful posts, which feature tips and tools, lessons learned, news from major conferences, and much more! Take a look at what our technical experts had to say and check back regularly to read our latest posts.

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