The leak register lives in a spreadsheet, the repair clock lives in your head, and the annual report is due whether or not anyone wrote down when the resurvey happened. Log the survey, log the leak, and let both statutory clocks calculate themselves.
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Enter the detection date once. The app calculates the first repair attempt due within 30 calendar days, then final repair and verification resurvey within 30 days of that attempt, and counts each one down with a colour-coded badge.
Register each site with the monitoring regime that actually applies — monthly, bi-monthly or quarterly AVO, quarterly or semiannual OGI or Method 21. Log a survey and that clock resets. Overdue and due-soon flag themselves.
Print a per-site summary for any period: every survey with date, method and technician; every leak with detection date, both clock dates, actual repair and resurvey dates, final status, and any delay justification.
Under 40 CFR 60.5420b, previously-due NSPS OOOOb annual reports must be submitted by 30 November 2026. What that report needs is not a memory of the repair — it is dated evidence that the leak was found, that a first attempt happened inside 30 days, that final repair and resurvey happened inside the next 30, and a written justification for anything that slipped. This app keeps that record as you go, so the report is a print job rather than an archaeology project.
From Oil Rigs Now — trusted by oilfield professionals since 2011.
We build practical tools for the people who work in the field, not the office. No subscriptions. No data collection. Everything stays on your device.
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This is a recordkeeping aid, not a submission tool. It does not file anything with the EPA or any state agency, and it does not replace your permit, your written LDAR plan, or professional judgement. Repair clocks are calculated as 30 calendar days from detection to the first repair attempt and 30 days from that attempt to final repair and verification resurvey, per 40 CFR 60.5397a. Verify all dates and applicability against the regulation and your own permit conditions.