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Quarterly Leak Summary (Rev. 7/2019)
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QUARTER 4 - 2022
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Name of Operator: Boston Gas Company
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Operator NameABCDELeaks Classified UpLeaks Classified Down
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Leaks Carried Forward from Previous YearNew Leaks Identified Leaks Repaired Leaks Eliminated by Replacement or Otherwise Leaks Pending at End of Quarter Notes
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Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
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Grade 1 18 1,015 849 874 867 948 796 835 814 66 37 45 58 24
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Grade 2 837 258 499 435 330 258 372 388 458 103 80 66 113 521 388
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Grade 3SEI1 694 16 47 19 1 14 40 17 32 14 9 24 14 613 4
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Grade 3 nonSEI 7,584 187 376 347 389 63 149 133 117 192 280 399 308 7,241 75
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Totals
 9,133 1,476 1,771 1,675 1,587 1,283 1,357 1,373 1,421 375 406 534 493 8,399 388 79
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1 Grade 3SEI ("G3SEI") refers to Grade 3 leaks of significant environmental impact.
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