What We Do

Half a Century of Environmental Expertise

Shell Engineering & Associates provides environmental consulting services to facilities of every size — from small agricultural operations to major industrial sources — with the same senior-level attention on every project, wherever the work takes us.

01 — Air Quality

Air Permitting

We manage the full permitting process with regulatory agencies from start to finish — construction permits, Title V and intermediate operating permits, PSD and NSR major source review, and permit-by-rule registrations. You keep running. We handle the paperwork.

Title VPSD / NSRMDNREPA
02 — Monitoring

Meteorological Tower Monitoring

Site-specific meteorological monitoring programs for PSD permit applicants and permit holders. We handle sensor installation, monthly data collection, QA/QC, and deliver validated reports to you and to the relevant agency — on time, every month.

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03 — Monitoring

Ambient Air Monitoring

Criteria pollutant and air toxics monitoring programs to satisfy pre-construction, permit condition, and voluntary monitoring requirements. Includes QAPP development, data validation, and all regulatory reporting.

Criteria PollutantsAir ToxicsQAPPNAAQS
04 — Modeling

Dispersion Modeling

AERMOD and screening-level modeling for permit applications, ambient impact demonstrations, NAAQS compliance, and odor nuisance investigations. We know what regulators expect and how to get it right the first time.

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05 — Water

Water & Stormwater Compliance

Clean Water Act and Safe Drinking Water Act compliance, NPDES permit applications, stormwater pollution prevention plans, wastewater pretreatment programs, and SPCC plan preparation and certification.

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Not sure which service applies to your situation? We’ll figure it out together.

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