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Tinsley Sand & Gravel, LLC

Construction Sand And Gravel, Sewanee, Tennessee. NPDES permit TN0070731, in force until Jun 30, 2030. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G quarterly (6 values), outfall 002 form G quarterly (6 values), outfall SW1 form Y yearly, outfall SW10 form Y yearly, outfall SW3 form Y yearly, outfall SW5 form Y yearly, and 4 more forms
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 6 reports late

Limits in force (60)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 40 mg/Lall year001
Solids, total suspendeddaily maximum≤ 40 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
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 40 mg/Lall year002
Solids, total suspendeddaily maximum≤ 40 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
pHminimum≥ 6 SU (alert, not enforceable)all yearSW1
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW1
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW1
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW1
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW1
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW1
pHminimum≥ 6 SU (alert, not enforceable)all yearSW10
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW10
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW10
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW10
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW10
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW10
pHminimum≥ 6 SU (alert, not enforceable)all yearSW3
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW3
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW3
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW3
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW3
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW3
pHminimum≥ 6 SU (alert, not enforceable)all yearSW5
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW5
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW5
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW5
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW5
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW5
pHminimum≥ 6 SU (alert, not enforceable)all yearSW6
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW6
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW6
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW6
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW6
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW6
pHminimum≥ 6 SU (alert, not enforceable)all yearSW7
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW7
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW7
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW7
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW7
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW7
pHminimum≥ 6 SU (alert, not enforceable)all yearSW8
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW8
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW8
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW8
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW8
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW8
pHminimum≥ 6 SU (alert, not enforceable)all yearSW9
pHmaximum≤ 9 SU (alert, not enforceable)all yearSW9
Solids, total suspendedmaximum≤ 150 mg/L (alert, not enforceable)all yearSW9
Oil and grease, hexane extr methodmaximum≤ 15 mg/L (alert, not enforceable)all yearSW9
Flow, in conduit or thru treatment plantminimumreport only (gal/min) (alert, not enforceable)all yearSW9
Flow, in conduit or thru treatment plantmaximumreport only (gal/min) (alert, not enforceable)all yearSW9

How strict are these limits?

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

Same industry: the 353 Mining and Quarrying of Nonmetallic Minerals permits in Tennessee.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0070731 · MCP: https://passage-data.com/mcp