The Hidden ROI of Fenceline Monitoring
How leading operators are redefining fenceline monitoring for transparency and trust.
November 20, 2025
By: Jenna Granstra and Austin Heitmann
For years, fenceline monitoring was treated like a checkbox. Air samples were collected. Labs ran analyses. Results arrived in a week or later. By then, the event may have come and gone.
That mindset is shifting fast.
What was once a regulatory requirement is fast becoming a source of operational intelligence. The leaders in air quality management aren’t waiting for reports anymore. They’re using real-time data to predict, prevent, and prove their environmental performance.
Why the Compliance-Only Approach Falls Short
Passive sampling gives you a historical view – a solid baseline for compliance and trend analysis. But sometimes, knowing what happened isn’t as helpful as knowing what’s currently happening. That’s when you need to take a real-time approach.
Awareness comes too late. Traditional analytical sampling is designed to document what happened during a defined window, not what’s unfolding in real time.
Community feedback doesn’t always sync with sampling cycles. Odor complaints and visible emissions can surface between fixed sampling schedules, creating blind spots that aren’t anyone’s fault.
Intermittent sources can be missed. Even the best fully compliant LDAR programs can potentially miss emission events when relying solely on traditional sampling.
During our recent Proof in the Air webinar, we shared an example where intermittent benzene spikes continued undetected for weeks despite a fully compliant LDAR program. When a mobile monitoring platform arrived onsite, the source was pinpointed within days — not weeks — and the team could act immediately.
Compliance doesn’t always equal visibility.
The New Playbook: Real-Time Intelligence
Today’s best facilities are rewriting the fenceline playbook. Integrating continuous monitoring, mobile analytics, and lab validation into their program to not just stay compliant but stay ahead. That integration might include fixed fenceline sensors, mobile PTR-TOF mass spectrometry, and targeted lab analysis — a closed loop that connects detection to confirmation.
Real-time detection enables immediate response, reducing the duration and impact of emission events.
Integrated data streams — fenceline, facility-wide sensors, mobile labs — support faster root-cause analysis and offer a complete air quality picture.
Predictive insights help prioritize maintenance before issues escalate.
Early detection → faster mitigation → fewer community complaints → reduced operational risk.
That’s the compounding ROI of fenceline visibility.
The Strategic Payoff
This shift reframes fenceline monitoring from a regulatory burden to proactive leadership.
Facilities that embrace this approach are:
- Building credibility with regulators and surrounding communities
- Strengthening ESG reporting with continuous, defensible data
- Protecting brand reputation and investor confidence
- Demonstrating leadership in transparent and environmental responsibility
The best compliance strategy is proof – and now proof can be real-time.
Where the Industry Is Headed
Air data used to live in static reports. Now it lives in dashboards — integrated, instant, and actionable.
Driven by new disclosure expectations and regulations like HON MACT, facilities are under growing pressure to make air quality data visible, verifiable, and continuous. That evolution is reshaping how facilities operate and how stakeholders evaluate performance. Because at the end of the day, this isn’t just about meeting limits — it’s about earning trust.
The future of fenceline monitoring isn’t reactive. It’s real-time, data-driven, and proactive.
And the reward for getting there first isn’t just compliance — it’s confidence and credibility.
Watch the full Proof in the Air session to see how leading operators are transforming compliance programs into real-time intelligence systems.
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Jenna Granstra
Senior Operations Manager
Jenna Granstra has over ten years of experience within the environmental and air quality fields. She’s a certified air quality scientist based out of Austin, Texas with extensive project management experience. Jenna has been a Client Project Manager at Montrose Environmental for over 2.5 years and is currently running the Gulf Coast operations team for the Sensible EDP business line. Some of her specialties include data analysis, data validation, air pollution meteorology, and air quality. She has managed numerous fenceline monitoring programs as well as community air monitoring programs. Ms. Granstra has extensive experience in the field of air quality monitoring including the design, installation, operation and maintenance, and quality assurance/quality control of air quality and meteorological networks.
Austin Heitmann
VP Operations – Real Time Air Monitoring
Austin Heitmann has over a decade of experience in air monitoring, technology development, and environmental program management. His hands-on work with advanced technology utilizing various operation principles includes all project phases. Austin’s approach focuses on pairing innovative tools with practical solutions that meet real-world monitoring needs.
