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Clean Water Act discharge permit · NPDES TX0007650

ASHBROOK HOUSTON PLANT, Houston, TX: NPDES TX0007650 discharge permit, effluent exceedances, inspections, penalties

ASHBROOK HOUSTON PLANT, held by ASHBROOK SIMON-HARTLEY OPERATI, holds NPDES permit TX0007650, which discharges to Halls Bayou, Greens Bayou, Houston. EPA’s file records it issued January 28, 2009 and expiring May 1, 2013.

ASHBROOK HOUSTON PLANT, Houston, Texas: Individual permit TX0007650, held by ASHBROOK SIMON-HARTLEY OPERATI; Administratively continued (past its expiration date and still in force until reissued); issued January 28, 2009, term to May 1, 2013; discharges to HALLS BAYOU, GREENS BAYOU, HOUSTON.

  • Nitrogen, ammonia total [as N]: 6 limits, 48 violations of any kind, 6 effluent exceedances, latest April 30, 2013, largest 169% over the limit.
  • pH: 4 limits, 56 violations of any kind, 2 effluent exceedances, latest August 31, 2006.
  • Enterococci: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2015, largest 977% over the limit.
  • Flow, in conduit or thru treatment plant: 4 limits, 49 violations of any kind, 1 effluent exceedance, latest November 30, 2010, largest 104% over the limit.
  • Solids, total suspended: 3 limits, 44 violations of any kind, 1 effluent exceedance, latest August 31, 2006, largest 7% over the limit.
  • BOD, carbonaceous [5 day, 20 C]: 3 limits, 43 violations of any kind, 1 effluent exceedance, latest July 31, 2012, largest 133% over the limit.
  • Oxygen, dissolved [DO]: 2 limits, 39 violations of any kind, 0 effluent exceedances.
  • Chlorine, total residual: 2 limits, 32 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 1 limit, 13 violations of any kind, 0 effluent exceedances.

ASHBROOK HOUSTON PLANT among its neighbors

EPA’s permit file holds 249 discharge permits in the Halls Bayou subwatershed (HUC 120401040604), TX0007650 among them. Its county holds 4,455, 195 of them major permits; TX0007650 is a minor permit.

Other permits in the Halls Bayou subwatershed (HUC 120401040604)

Identity

Facility as filedASHBROOK HOUSTON PLANT
Permittee as filedASHBROOK SIMON-HARTLEY OPERATI
NPDES IDTX0007650
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
IssuedJanuary 28, 2009
Expiration dateMay 1, 2013
AddressHouston, TX 77222
Receiving waterHALLS BAYOU, GREENS BAYOU, HOUSTON
SubwatershedHalls Bayou (HUC 120401040604)
SIC3561 – Pumps And Pumping Equipment

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
Nitrogen, ammonia total [as N]6486April 30, 2013169% over the limit
pH4562August 31, 2006
Enterococci022June 30, 2015977% over the limit
Flow, in conduit or thru treatment plant4491November 30, 2010104% over the limit
Solids, total suspended3441August 31, 20067% over the limit
BOD, carbonaceous [5 day, 20 C]3431July 31, 2012133% over the limit
Oxygen, dissolved [DO]2390
Chlorine, total residual2320
Oil & Grease1130

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0007650.

Inspections

EPA’s inspection file holds no inspection for NPDES TX0007650.

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 TX0007650.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES permit TX0007650 for the ASHBROOK HOUSTON PLANT in Houston, TX, held by ASHBROOK SIMON-HARTLEY OPERATI and discharging to HALLS BAYOU, GREENS BAYOU, HOUSTON, with the permit listed as administratively continued. The page lists 6 pollutants with an effluent exceedance and 8 pollutants under a numeric limit.