Historical record of leak ID 12000522 (formerly 323600, 240 N BILLERICA RD in Tewksbury, National Grid service area TEWKSBURY)

History of leak ID 12000522 according quarterly leak reports
Leak IDEnd of QuarterLeak grade1Class/grade assigned2Measured leak extentRepair dateStatus4Notes from National Grid
Leak extent3Survey date
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1200052206/30/2025306/10/2009450 sqft01/30/2025Pending
32360003/31/2025306/10/2009450 sqft01/30/2025Pending
32360012/31/2024306/10/2009560 sqft11/17/2023Pending
32360009/30/2024306/10/2009560 sqft11/17/2023Pending
32360006/30/2024306/10/2009560 sqft11/17/2023Pending
32360003/31/2024306/10/2009560 sqft11/17/2023Pending
32360012/31/2023306/10/2009560 sqft11/17/2023Pending
32360009/30/2023306/10/2009150 sqft02/16/2023Pending
32360006/30/2023306/10/2009150 sqft02/16/2023Pending
32360003/31/2023306/10/2009150 sqft02/16/2023Pending
32360012/31/2022306/10/2009375 sqft04/08/2022Pending
32360009/30/2022306/10/2009350 sqft04/16/2021Pending
32360006/30/2022306/10/2009350 sqft04/16/2021Pending
32360003/31/2022306/10/2009350 sqft04/16/2021Pending
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Elimination plan for leak ID 12000522 according to annual Service Quality (SQ) reports5
Leak IDCalendar yearDate of SQ reportLeak grade1Class/grade assigned2Environmental ImpactIncluded in GSEPRepair context and/or timeframeRepair planned by6
Barhole readingLeak extentSurvey dateDesignated G3SEI
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Status of leak ID 12000522 according to SQ reports7
Leak IDCalendar yearDate of SQ reportLeak first identifiedLeak grade1Environmental Impact8RepairedRepair date
Barhole readingLeak extentDesignated G3SEI
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323600202402/28/202506/10/20093N
323600201402/27/201506/10/20093N
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Footnotes:
1Grade (or class) is assigned initially, but may be up- or downgraded at a later date
2May be significantly later than the initial report date if the leak was ever up- or downgraded to a different class
3Reports before 2020 often report barhole reading, not leak extent
4Status is usually “Pending” until repair or elimination; details, if any, are in the Notes column
5G3SEI plans only provided starting in SQ report for CY 2019
6Planned repair date field is often empty in the absence of a concrete timeframe (e.g. “Through GSEP”)
7The SQ Report for CY 2014, which was the first to require leak reporting, collects unrepaired leaks from all preceding years
8Only provided from CY 2019 onward and only for repaired leaks, an elimination plan being unnecessary
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Records last updated Wed, Aug 06 2025 04:00:12 PM EDT