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SLC Infrastructure, LLC

Crushed And Broken Limestone, Nolansville, Tennessee. NPDES permit TN0070754, in force until Feb 28, 2031. Last 12 months: over a limit 2 times (last August 2026), 3 of 7 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 76 days after each period: form G quarterly (12 values)
Last report on file
September 2026

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimitOver by
July 2026Solids, total suspended, daily maximum55 mg/L≤ 40 mg/L38%
August 2026pH, daily maximum9.1 SU≤ 9 SU—

Limits in force (12)

ParameterStatisticLimitMonths
pHdaily minimum≥ 6 SUall year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 40 mg/Lall year
Solids, total suspendedmonthly average≤ 40 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Solids, total suspendeddaily maximum≤ 40 mg/Lall year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/min)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/min)all year

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/TN0070754 · MCP: https://passage-data.com/mcp