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Clean Water Act discharge permit · NPDES TN0079740

HILLIARD MINE 33, Henry, TN: NPDES TN0079740 discharge permit, effluent exceedances, inspections, penalties

HILLIARD MINE 33, held by H.C. Spinks Clay Company, Inc., dba Lhoist North America, holds NPDES permit TN0079740, which discharges to Obion-South Fork. EPA’s file records it issued October 16, 2017 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for HILLIARD MINE 33: its NPDES ID, its permit type and status, its dates, its address in Henry, Tennessee, its receiving water, and 3 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES TN0079740.

Identity

Facility as filedHILLIARD MINE 33
Permittee as filedH.C. Spinks Clay Company, Inc., dba Lhoist North America
NPDES IDTN0079740
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedOctober 16, 2017
Expiration dateDecember 31, 2022
Issuing agencyTDEC - DWR
AddressHenry, TN 38231
Receiving waterObion-South Fork
Receiving water impaired303(D) Listed
SubwatershedMiddle Fork Obion River Headwaters (HUC 080102030401)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH400
Solids, total suspended400
Flow, in conduit or thru treatment plant400

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES TN0079740.

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TN0079740.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TN0079740.

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How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TN0079740 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.