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 CT0030821

STEVENSON HYDROELECTRIC STATION, Monroe, CT: NPDES CT0030821 discharge permit, effluent exceedances, inspections, penalties

STEVENSON HYDROELECTRIC STATION, held by FIRSTLIGHT CT HOUSATONIC LLC, holds NPDES permit CT0030821, which discharges to Housatonic River. EPA’s file records it issued April 14, 2025 and expiring April 30, 2030.

STEVENSON HYDROELECTRIC STATION, Monroe, Connecticut: Individual permit CT0030821, held by FIRSTLIGHT CT HOUSATONIC LLC; Effective; issued April 14, 2025, term to April 30, 2030, by CT DEEP; discharges to Housatonic River.

  • pH: 8 limits, 0 violations of any kind, 0 effluent exceedances.
  • Flow: 5 limits, 0 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 4 limits, 0 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. fahrenheit: 1 limit, 0 violations of any kind, 0 effluent exceedances.

Other permits held by FIRSTLIGHT CT HOUSATONIC LLC

STEVENSON HYDROELECTRIC STATION among its neighbors

EPA’s permit file holds 8 discharge permits in the Halfway River-Housatonic River subwatershed (HUC 011000051003), CT0030821 among them. Its county holds 147, 14 of them major permits; CT0030821 is a minor permit.

Other permits in the Halfway River-Housatonic River subwatershed (HUC 011000051003)

  • AUTO SWAGE PRODUCTS, INC., Shelton: CT0020826, major permit, discharging to HOUSATONIC RIVER, permit term to June 25, 2005
  • DERBY, CITY OF WPCF, Derby: CT0100161, major permit, discharging to HOUSATONIC RIVER, permit term to January 31, 2018
  • JANS LAND DEVELOPMENT, Monroe: CTR100098, minor permit, permit term to October 1, 2007
  • OXFORD ESTATES, Sandy Hook: CTR100019, minor permit, permit term to October 1, 2007
  • PRECISION RESOURCE, INC., Shelton: CTR050434, minor permit, permit term to September 30, 2030
  • RIVERBEND ESTATES, Oxford: CTSSD0056, minor permit, permit term to October 12, 2031
  • SHELTON, CITY OF, Shelton: CT0100714, major permit, discharging to HOUSATONIC RIVER, permit term to September 30, 2020

What the register holds for STEVENSON HYDROELECTRIC STATION: its NPDES ID, its permit type and status, its dates, its address in Monroe, Connecticut, its receiving water, and 4 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES CT0030821.

Identity

Facility as filedSTEVENSON HYDROELECTRIC STATION
Permittee as filedFIRSTLIGHT CT HOUSATONIC LLC
NPDES IDCT0030821
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedApril 14, 2025
Expiration dateApril 30, 2030
Issuing agencyCT DEEP
AddressMonroe, CT 06468
Receiving waterHousatonic River
Receiving water impaired303(D) Listed
SubwatershedHalfway River-Housatonic River (HUC 011000051003)

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
pH800
Flow500
Oil & Grease400
Temperature, water deg. fahrenheit100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES CT0030821.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES CT0030821.

Inspections

EPA’s inspection file holds no inspection for NPDES CT0030821.

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 CT0030821.

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, CT0030821.

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

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES CT0030821 for STEVENSON HYDROELECTRIC STATION in Monroe, CT, held by FIRSTLIGHT CT HOUSATONIC LLC and discharging to Housatonic River. The register lists the permit as Effective, a Minor Discharger class 4 permit, with 4 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.