Business Details
33 Years
experience
Your Trusted Environmental Solutions Partner in St. Louis
Founded in 1993, NPN Environmental Engineers has built a reputation for delivering practical and economical environmental solutions while prioritizing quality and liability protection. Our team of experienced engineers, scientists, and professionals combines technical expertise with a client-focused approach to address complex environmental challenges. With over 30 years of experience, we offer integrated consulting and contracting services, including environmental site assessments, remediation, air and water quality management, and regulatory compliance. Our commitment to innovation ensures clients receive cost-effective strategies tailored to their specific needs. We specialize in facility decommissioning, asbestos and lead management, and mining services, supported by a robust quality assurance program.Our principals, registered professional engineers, lead every project to guarantee technical excellence and regulatory adherence. Having completed over 1,000 asbestos-related projects and 500+ Phase I ESAs, we serve clients across 40+ states. Our mission is to become long-term partners by consistently delivering high-quality services that minimize environmental risks and maximize value. We maintain accreditations and certifications in multiple states, reflecting our dedication to industry standards. By merging technical proficiency with practical solutions, we aim to be a trusted resource for environmental management nationwide.
Services
Environmental Site Assessments
Remediation Services
Air Quality Management
Regulatory Compliance
Facility Decommissioning
Water Quality Management
Asbestos & Lead Management
Mining Services
Indoor Air Quality
Details
- Year established: 1993
Highlights and features
- Over 30 years of experience in environmental services
- Integrated consulting and contracting services under one roof
- Team of registered professional engineers and certified experts
- Proven track record with 1,000+ asbestos management projects
- Serving clients in over 40 states with tailored solutions
Services
Environmental Site Assessments
We conduct Phase I and II environmental site assessments (ESAs) in accordance with ASTM and AAI standards. Our team of professional engineers, geologists, and environmental assessors evaluates property conditions to identify potential contamination. With over 500 completed ESA projects, we provide actionable insights to support real estate transactions, regulatory compliance, and risk management for commercial and industrial clients.
Remediation Services
Our remediation experts develop and implement corrective action plans to address soil, groundwater, and facility contamination. We prioritize cost-effective strategies that meet regulatory requirements while minimizing client liability. Services include work plan development, regulatory coordination, and on-site project management for industrial, chemical, and mining sector clients facing environmental cleanup challenges.
Air Quality Management
We provide comprehensive air quality management solutions for industrial and commercial facilities. Our services include emissions inventory, permit applications, compliance audits, and control technology recommendations. With expertise in EPA, OSHA, and state regulations, we help clients maintain compliance while optimizing operational efficiency across chemical, manufacturing, and mining industries.
Facility Decommissioning
Our team specializes in end-to-end facility decommissioning services, ensuring regulatory compliance during plant closures or downsizing. We develop decontamination plans, manage waste streams, and coordinate salvage operations. By combining environmental expertise with practical execution, we deliver cost-effective solutions for industrial facilities facing decommissioning challenges across multiple sectors.
Asbestos & Lead Management
We offer full-service asbestos and lead management solutions, including inspections, risk assessments, and abatement planning. Our certified professionals have completed over 1,000 projects, ensuring compliance with EPA, OSHA, and state regulations. Services cover commercial, industrial, and institutional properties, with a focus on worker safety and environmental protection during renovation or demolition activities.
Questions
What environmental services does NPN offer?
We provide environmental site assessments, remediation, air and water quality management, regulatory compliance, facility decommissioning, and asbestos/lead management services for industrial, commercial, and mining clients.
Do you operate outside St. Louis?
Yes, we serve clients in over 40 states, offering nationwide environmental consulting and contracting services while maintaining local regulatory expertise in multiple jurisdictions.
What makes NPN different from competitors?
Our principals, who are registered professional engineers, lead every project. We combine consulting and contracting services under one roof and maintain extensive state-specific certifications for comprehensive environmental solutions.
How experienced is your team?
With 30+ years in business, our team has completed 1,000+ asbestos projects and 500+ Phase I ESAs. Our professionals hold multiple accreditations and certifications across various environmental disciplines.
Can you handle complex regulatory compliance?
Yes, our regulatory compliance team includes engineers and scientists with expertise in federal and state environmental regulations, providing tailored solutions for industrial facilities and mining operations.
