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Transcontinental Gas Pipe Line Co LLC

Pipelines, Quarryville, Pennsylvania. NPDES permit PA0282031, in force until Dec 31, 2030. Last 12 months: no values over a limit, 6 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (15 values), outfall 002 form A monthly (15 values), outfall 003 form A monthly (15 values)
Last report on file
August 2026

Limits in force (45)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendedinstantaneous maximum≤ 10 mg/Lall year001
Oil & Greasemonthly averagereport only (mg/L)all year001
Oil & Greaseinstantaneous maximum≤ 5 mg/Lall year001
Iron, dissolved [as Fe]monthly averagereport only (mg/L)all year001
Iron, dissolved [as Fe]instantaneous maximum≤ 1.5 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year001
Chlorine, total residualmonthly averagereport only (mg/L)all year001
Chlorine, total residualinstantaneous maximum≤ .01 mg/Lall year001
Flow, totalmonthly totalreport only (gal)all year001
Duration of dischargemonthly totalreport only (hr)all year001
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year002
pHdaily minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 9 SUall year002
Solids, total suspendedmonthly averagereport only (mg/L)all year002
Solids, total suspendedinstantaneous maximum≤ 10 mg/Lall year002
Oil & Greasemonthly averagereport only (mg/L)all year002
Oil & Greaseinstantaneous maximum≤ 5 mg/Lall year002
Iron, dissolved [as Fe]monthly averagereport only (mg/L)all year002
Iron, dissolved [as Fe]instantaneous maximum≤ 1.5 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year002
Chlorine, total residualmonthly averagereport only (mg/L)all year002
Chlorine, total residualinstantaneous maximum≤ .01 mg/Lall year002
Flow, totalmonthly totalreport only (gal)all year002
Duration of dischargemonthly totalreport only (hr)all year002
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year003
pHdaily minimum≥ 6 SUall year003
pHinstantaneous maximum≤ 9 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendedinstantaneous maximum≤ 10 mg/Lall year003
Oil & Greasemonthly averagereport only (mg/L)all year003
Oil & Greaseinstantaneous maximum≤ 5 mg/Lall year003
Iron, dissolved [as Fe]monthly averagereport only (mg/L)all year003
Iron, dissolved [as Fe]instantaneous maximum≤ 1.5 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year003
Chlorine, total residualmonthly averagereport only (mg/L)all year003
Chlorine, total residualinstantaneous maximum≤ .01 mg/Lall year003
Flow, totalmonthly totalreport only (gal)all year003
Duration of dischargemonthly totalreport only (hr)all year003

How strict are these limits?

Cited limits by parameter: Pennsylvania's rules and the federal ones.

Same industry: the 6 Pipelines, Except Natural Gas permits in Pennsylvania.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/PA0282031 · MCP: https://passage-data.com/mcp