EPA NSPS OOOOa (Quad Oa) Compliance Calendar Software
EPA's NSPS Subpart OOOOa (40 CFR 60 Subpart OOOOa), finalized in 2016, expanded the original Quad O rule by adding methane as a regulated pollutant, requiring fugitive emissions monitoring at well sites and compressor stations using Optical Gas Imaging (OGI) cameras or EPA Method 21, regulating pneumatic pumps, and extending green completion requirements to oil wells. For operators managing hundreds of well sites and compressor stations, tracking survey frequencies, repair timelines, and reporting deadlines is a significant compliance challenge.
Our NSPS OOOOa Compliance Calendar Software and mobile app tracks every fugitive emissions survey, leak repair deadline, reporting obligation, and monitoring requirement across all your affected facilities.
Fugitive Emissions Survey Requirements
Well Sites
- Initial survey within 60 days of startup
- Semi-annual surveys using OGI, or
- Annual surveys using EPA Method 21
- Reduced frequency with low leak history
- Covers valves, connectors, pressure relief devices, open-ended lines, flanges, and other components
Compressor Stations
- Initial survey within 60 days of startup
- Quarterly surveys using OGI, or
- Semi-annual surveys using EPA Method 21
- More frequent than well sites due to higher emission potential
- Same component coverage as well sites
Key NSPS OOOOa Compliance Deadlines
Well Site Fugitive Emissions Surveys
Conduct fugitive emissions monitoring at affected well sites using OGI semi-annually or Method 21 annually. Initial survey within 60 days of startup.
Compressor Station Fugitive Surveys
Conduct fugitive emissions monitoring at affected compressor stations using OGI quarterly or Method 21 semi-annually.
Leak Repair & First Attempt
Make first attempt at repair and complete final repair within 30 days of detection. Tag component and document repair actions.
Repair Verification Survey
Conduct a follow-up resurvey within 30 days of completing a leak repair to verify the repair was successful.
Reciprocating Compressor Rod Packing
Replace rod packing before 26,000 hours of operation or every 36 months, whichever comes first, unless routing to process or control.
Well Completions (Oil & Gas)
Conduct green completions for both gas and oil hydraulically fractured wells. Document flowback, gas capture, and any venting or flaring.
Pneumatic Pump Compliance
Route emissions from pneumatic pumps at well sites to a control device or process if a control device is on-site. Processing plant pumps must have zero emissions.
Initial Performance Tests
Complete initial performance tests for control devices within 180 days of initial startup of affected equipment.
Annual Report
Submit annual compliance report by March 31 for the preceding calendar year with fugitive survey results, leak data, equipment compliance, and deviations.
Recordkeeping Retention
Maintain all compliance records including survey results, repair logs, monitoring data, and reports for at least 5 years.
Software Features for NSPS OOOOa Compliance
OGI/Method 21 Survey Scheduling
Schedule fugitive emissions surveys at correct frequencies for well sites (semi-annual/annual) and compressor stations (quarterly/semi-annual).
Leak Tracking & Repair Management
Track detected leaks from detection through first attempt, final repair, and verification resurvey with 30-day deadline enforcement.
Compressor Compliance
Track rod packing replacement schedules and wet seal compressor control device monitoring across your fleet.
Pneumatic Equipment Inventory
Maintain inventories of pneumatic controllers and pumps with compliance status and emissions routing documentation.
Completion Tracking
Document green completion practices for oil and gas wells with flowback data and emissions capture records.
Annual Report Compilation
Compile survey results, leak repair data, and compliance information for the March 31 annual report.
Multi-Site Management
Track hundreds of well sites and compressor stations with site-specific survey schedules and compliance status.
Mobile App
Conduct OGI surveys, document leaks, and manage repairs from the field with our mobile app.
