Compliance you can see.
Data you can defend.

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 FID analyzers for Method 21 and FLIR OGI cameras, 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.

Use OGI for NSPS OOOOa/OOOOb surveys and methane quantification. Use Method 21 where the rule requires it or you need ppm-level screening. Many sites run OGI for routine surveys and Method 21 for repair verification.

NSPS OOOOb establishes updated methane and VOC standards for new, modified, and reconstructed oil and gas sources - including super-emitter response, pneumatic controller requirements, and compressor rod packing monitoring. OOOOc extends similar requirements to existing sources. Korsa helps Permian Basin operators navigate both rules with OGI surveys, Method 21 verification, rod packing measurements, and audit-ready documentation aligned with EPA timelines.

We use calibrated high-volume samplers (HVS) to measure volumetric flow from compressor vents - rod packing vents on reciprocating compressors and dry seal vents on centrifugal compressors. NSPS OOOOb sets flow rate thresholds for these vents, and direct HVS measurement tells you whether packing or seals need repair or replacement before an exceedance becomes a violation. Every measurement is documented in audit-ready reports and can flow straight into TotalEI alongside your Subpart W data. Free field-planning tool: GFM 2.0 Extension Pole Calculator.

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.

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.

Quickly - our crews are based in Midland, at the center of the Permian. 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 across the Delaware, Midland, and Central Basin Platform.

Outsourcing provides certified operators, specialized equipment (FLIR OGI cameras, FID analyzers), and deep regulatory expertise without the overhead of training, certification maintenance, and equipment calibration. Korsa scales for multi-site Permian programs and integrates field data directly into TotalEI - giving you consistency across basins without building an in-house environmental team.