Compliance Done Right

LDAR (Leak Detection and Repair) is an EPA-required program to find and repair leaking equipment at oil and gas facilities—valves, connectors, pumps, compressors, pressure relief devices, and more. Monitoring frequency varies by rule (NSPS, NESHAP, state programs) and can range from quarterly to annually. Non-compliance can trigger enforcement actions and penalties. Korsa provides EPA-compliant LDAR using certified TVA-2020 analyzers for Method 21 and FLIR GF320 for OGI, with documentation that holds up in audits.

40 CFR 98 Subpart W requires petroleum and natural gas systems to calculate and report greenhouse gas emissions to the EPA's GHGRP. It covers production, gathering, processing, transmission, and storage—including compressor rod packing, wet and dry seal emissions, equipment leaks, and facility-level calculations. Korsa provides end-to-end Subpart W services: field measurements (rod packing, wet/dry seals, leak surveys), emission factor application, calculation methodology support, and GHGRP annual reporting. We specialize in the natural gas supply chain from wellheads through transmission.

OGI (Optical Gas Imaging) is often preferred for NSPS OOOOa/OOOOb surveys, large equipment counts, and methane quantification—it's faster and can detect emissions at lower concentrations. Method 21 is required where rules specify it (e.g., certain NESHAP sources) or when you need ppm-level screening. Many facilities use both: OGI for routine surveys and Method 21 for follow-up repair verification. Our FLIR GF320-certified operators can advise on the right approach for your facility and regulatory drivers.

TotalEI is our emissions management platform built specifically for Subpart W, GHG, and LDAR compliance. It centralizes compressor measurements, equipment leak data, flare and blowdown tracking, and GHGRP reporting in one system—with audit trails, version control, and role-based access. Unlike spreadsheets, it enforces calculation methodologies, supports thousands of concurrent users across multiple sites, and produces documentation that auditors expect. Modules cover Subpart W, GHGRP reporting, ESG metrics, compressor testing, and flare management.

Both. You can use Korsa for field work only (Method 21, OGI, Subpart W surveys), TotalEI only (if you have in-house field teams), or the full package. Many clients start with field services and adopt TotalEI when they outgrow spreadsheets. The combination gives you certified operators plus a platform that captures and reports the data they collect—reducing handoffs and keeping everything audit-ready.

We prioritize flexible scheduling and quick response. Contact us with your facility type, scope (OGI, Method 21, Subpart W compressor work, etc.), and target dates—we'll work with you to align resources and get on site. We serve production, gathering, processing, transmission, and storage facilities across the U.S. and can scale for multi-site programs.