Environmental Consulting Services
Trusted Environmental Consulting for Montana and the Region
Environmental Consulting Services, LLC (ECS) has provided responsive environmental consulting in Billings, Montana and across the region since 1994. We help property owners, businesses, lenders, industrial manufacturers, and municipalities address environmental requirements with practical, cost-effective solutions.
From Phase I and Phase II Environmental Site Assessments to SPCC Plans, stormwater compliance, spill response, and remediation support — ECS brings clear communication and technical expertise to every project.
Learn About Our Services
Assessment, compliance, permitting, and remediation support for Montana businesses and property owners.
Meet Jason Vollmer
27 years of environmental consulting experience, based in Billings and working across the region.
Start a Conversation
Not sure what you need? A brief call is usually all it takes to point you in the right direction.
MISSION
Our mission is to help clients address environmental requirements with practical, technically sound, and cost-effective solutions. ECS provides clear guidance, responsive support, and site-specific strategies that help clients make informed decisions and move projects forward with confidence.
Who We Serve
Environmental Consulting Services, LLC works with a wide range of clients across Montana and the surrounding region, including:
- Transportation and other businesses responding to spills, contaminated soil, or agency compliance requests
- Property owners and real estate investors conducting environmental due diligence
- Lenders and financial institutions requiring Phase I or Phase II ESAs before closing
- Industrial and transportation contractors navigating stormwater compliance and SWPPP requirements
- Industrial and Feedlot/CAFO operators with wastewater permitting needs
- Industrial, transportation, and construction facilities managing SPCC Plans and spill prevention obligations
- Municipalities and government agencies with environmental permitting and compliance issues with the general public
services
Environmental Due Diligence – Phase I and II ESA
Environmental Consulting Services, LLC (ECS) helps buyers, sellers, lenders, developers, and property owners evaluate environmental conditions with clear, practical due diligence support for commercial and industrial properties.
DetailsWater Quality
ECS provides environmental compliance, permitting, and facility audit services to help clients identify regulatory obligations, evaluate operational compliance, and address agency requirements in a practical and defensible manner.
DetailsSpill Response and Contaminated Media Remediation
ECS provides spill response and contaminated media remediation services to help clients evaluate releases, manage environmental impacts, and move sites toward appropriate regulatory closure.
DetailsSWPPP / Stormwater Compliance
ECS prepares Stormwater Pollution Prevention Plans (SWPPPs) and provides stormwater compliance support for industrial facilities, transportation facilities, and other regulated stormwater discharge operations.
DetailsEnvironmental Compliance and Permitting – Facility Audit Services
ECS helps clients understand and comply with environmental regulations, permit requirements, agency requests, and reporting obligations.
DetailsAir Quality
ECS provides air quality permitting and compliance support to help facilities evaluate regulatory applicability, document emissions, and maintain compliance with state and federal air quality requirements.
DetailsFrequently Asked Questions
What is a Phase I Environmental Site Assessment? A Phase I ESA is an investigation of a property’s history and current conditions to identify recognized environmental conditions — past uses, spills, or contamination that could affect the property’s value, use, and buyers financial obligations. Phase I ESAs are commonly required by lenders before real estate transactions close.
When do I need an SPCC Plan? Facilities that store petroleum products above certain threshold quantities are required by federal regulation to have a Spill Prevention, Control, and Countermeasure Plan. ECS prepares and updates SPCC Plans for facilities of all sizes.
What is a SWPPP? A Stormwater Pollution Prevention Plan is required for certain businesses/facilities, based on industry sector codes, to document how stormwater runoff will be managed to prevent pollution. ECS develops SWPPPs and provides ongoing compliance support.
How do I know if I need environmental consulting? If you’re buying or selling property, managing a facility that stores petroleum products or hazardous chemicals, responding to a spill, applying for an environmental permit, or dealing with a regulatory agency, ECS can help you understand your obligations and options. When in doubt, a brief conversation costs nothing.
Service Area
ECS provides environmental services primarily in Montana and across the western United States.
ECS has completed projects in Colorado, Washington, Idaho, North Dakota, South Dakota, and Texas.
