Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES CTRSW0020

OX OWNER, LLC., Uncasville, CT: NPDES CTRSW0020 discharge permit, effluent exceedances, inspections, penalties

OX OWNER, LLC., held by OX OWNER, LLC, holds NPDES permit CTRSW0020, which discharges to Connecticut River. EPA’s file records it issued July 5, 2019 and expiring March 1, 2025. 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 filedOX OWNER, LLC.
Permittee as filedOX OWNER, LLC
NPDES IDCTRSW0020
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 5, 2019
Expiration dateMarch 1, 2025
Issuing agencyCT DEEP
AddressUncasville, CT 06382
Receiving waterConnecticut River

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
Organics-tot voltile [NJAC reg.7:23-17e]1284July 31, 20241,824% over the limit
NOAEL Static 48Hr Acute Pimephales promelas4223March 31, 202427% over the limit
pH6510
Flow rate1300
Flow, maximum during 24 hr period1300
Flow1300
Chlorinated organic compounds1240
NOAEL Static 48Hr Acute D. pulex4190
Temperature, water deg. fahrenheit230
Specific conductance230
Alkalinity, total [as CaCO3]230
Hardness, total [as CaCO3]230
Copper, total [as Cu]230
Iron, total [as Fe]230
Lead, total [as Pb]230
Zinc, total [as Zn]230
Chlorine, total residual230
Salinity130

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 CTRSW0020.

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, CTRSW0020.

Start the watch

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 CTRSW0020 there.

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 permit CTRSW0020, held by OX OWNER, LLC., which discharges to the Connecticut River. The page lists 18 pollutants on file, 18 under a numeric limit, 18 with a violation of any kind, and 2 with an effluent exceedance.