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U. S. Silica Company

Industrial Sand, Jackson, Tennessee. NPDES permit TN0067563, in force until Jul 31, 2031. Last 12 months: no values over a limit, 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form G monthly (10 values), outfall SW1 form B twice a year
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 14 reports late

Limits in force (16)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradedaily maximumreport only (deg C)all year001
pHdaily minimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximum≤ 40 mg/Lall year001
Solids, settleabledaily maximum≤ .5 mL/Lall year001
Oil and greasemonthly averagereport only (mg/L)all year001
Oil and greasedaily maximum≤ 15 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pHminimumreport only (SU)all yearSW1
Solids, total suspendeddaily maximumreport only (mg/L)all yearSW1
Solids, settleabledaily maximumreport only (mL/L)all yearSW1
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all yearSW1
Oil and greasedaily maximumreport only (mg/L)all yearSW1
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearSW1

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.

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/TN0067563 · MCP: https://passage-data.com/mcp