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Clean Water Act discharge permit · NPDES IA0079723

VALLEY MACHINING COMPANY, Rock Valley, IA: NPDES IA0079723 discharge permit, effluent exceedances, inspections, penalties

VALLEY MACHINING COMPANY holds NPDES permit IA0079723. EPA’s file records it issued May 1, 2012 and expiring April 30, 2017. 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.

Identity

Facility as filedVALLEY MACHINING COMPANY
Permittee as filedVALLEY MACHINING COMPANY
NPDES IDIA0079723
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
IssuedMay 1, 2012
Expiration dateApril 30, 2017
Issuing agencySTA
AddressRock Valley, IA 51247
SubwatershedRogg Creek-Rock River (HUC 101702040804)

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
pH2171August 31, 2007

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 IA0079723.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0079723.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES IA0079723.

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

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VALLEY MACHINING COMPANY, Rock Valley, Iowa: Individual permit IA0079723; Administratively continued (past its expiration date and still in force until reissued); issued May 1, 2012, term to April 30, 2017, by STA.

  • pH: 2 limits, 17 violations of any kind, 1 effluent exceedance, latest August 31, 2007.

VALLEY MACHINING COMPANY among its neighbors

EPA’s permit file holds 8 discharge permits in the Rogg Creek-Rock River subwatershed (HUC 101702040804), IA0079723 among them. Its county holds 80, 2 of them major permits; IA0079723 is a minor permit.

Other permits in the Rogg Creek-Rock River subwatershed (HUC 101702040804)

Nearby on the register

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

What this page shows

This public-records page covers NPDES discharge permit IA0079723 held by VALLEY MACHINING COMPANY in Rock Valley, IA, with the permit listed as administratively continued and a minor discharger class. The page lists 1 pollutant on file, 1 under a numeric limit, and 1 with an effluent exceedance, within the Rogg Creek-Rock River (HUC 101702040804) subwatershed.