Clean Water Act discharge permit · NPDES CT0100986
ROUND HILL CLUB, INC., Greenwich, CT: NPDES CT0100986 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 23Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
ROUND HILL CLUB, INC., held by ROUND HILL CLUB, holds NPDES permit CT0100986, which discharges to Byram River. EPA’s file records it issued October 26, 2012 and expiring October 31, 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 filed | ROUND HILL CLUB, INC. |
|---|---|
| Permittee as filed | ROUND HILL CLUB |
| NPDES ID | CT0100986 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 26, 2012 |
| Expiration date | October 31, 2017 |
| Issuing agency | CT DEP |
| Address | Greenwich, CT 06831 |
| Receiving water | BYRAM RIVER |
| Subwatershed | Blind Brook-Horseneck Brook (HUC 011000060405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 54Pollutants on file
- 23Under a numeric limit
- 54With a violation of any kind
- 5With an effluent exceedance
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 measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 3 | 78 | 27 | August 31, 2024 | 1,945% over the limit |
| BOD, 5-day, 20 deg. C | 3 | 62 | 11 | March 31, 2026 | 1,600% over the limit |
| Solids, suspended percent removal | 1 | 22 | 5 | November 30, 2022 | 670% over the limit |
| Chlorine, total residual | 2 | 29 | 4 | September 30, 2023 | 100% over the limit |
| BOD, 5-day, percent removal | 1 | 19 | 2 | November 30, 2022 | 460% over the limit |
| pH | 2 | 35 | 0 | ||
| Flow | 2 | 32 | 0 | ||
| E. coli | 2 | 17 | 0 | ||
| Beryllium, total [as Be] | 1 | 5 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 1 | 5 | 0 | ||
| Solids, fixed, % of total solids | 1 | 5 | 0 | ||
| Solids, volatile % of total solids | 1 | 5 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 1 | 5 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 1 | 5 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 1 | 5 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 1 | 5 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 1 | 5 | 0 | ||
| Copper, sludge, total, dry weight [as Cu] | 1 | 5 | 0 | ||
| Cadmium, sludge, total, dry weight [as Cd] | 1 | 5 | 0 | ||
| NOAEL Static 48Hr Acute D. pulex | 2 | 4 | 0 | ||
| NOAEL Static 48Hr Acute Pimephales promelas | 2 | 4 | 0 | ||
| Arsenic, sludge tot. dry wt [as As] | 1 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 4 | 0 | ||
| Solids, sludge, total, dry weight | 0 | 4 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 3 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 3 | 0 | ||
| Phosphorus, total [as P] | 0 | 3 | 0 | ||
| Cyanide, total [as CN] | 0 | 3 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 3 | 0 | ||
| Arsenic, total [as As] | 0 | 3 | 0 | ||
| Cadmium, total [as Cd] | 0 | 3 | 0 | ||
| Chromium, hexavalent [as Cr] | 0 | 3 | 0 | ||
| Chromium, total [as Cr] | 0 | 3 | 0 | ||
| Copper, total [as Cu] | 0 | 3 | 0 | ||
| Iron, total [as Fe] | 0 | 3 | 0 | ||
| Lead, total [as Pb] | 0 | 3 | 0 | ||
| Thallium, total [as Tl] | 0 | 3 | 0 | ||
| Nickel, total [as Ni] | 0 | 3 | 0 | ||
| Silver, total [as Ag] | 0 | 3 | 0 | ||
| Zinc, total [as Zn] | 0 | 3 | 0 | ||
| Antimony, total [as Sb] | 0 | 3 | 0 | ||
| Aluminum, total [as Al] | 0 | 3 | 0 | ||
| Selenium, total [as Se] | 0 | 3 | 0 | ||
| Phenols | 0 | 3 | 0 | ||
| Beryllium, sludge, tot. dry wt [as Be] | 0 | 3 | 0 | ||
| Mercury, total [as Hg] | 0 | 3 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Solids, total, percent | 1 | 1 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 1 | 0 | ||
| Solids, settleable | 0 | 1 | 0 | ||
| Flow, in conduit or thru treatment plant | 0 | 1 | 0 | ||
| Nitrogen [as NO3] sludge solid | 0 | 1 | 0 | ||
| Phosphorus, sludge, total, dry weight [as P] | 0 | 1 | 0 | ||
| Hydrocarbons, petroleum | 0 | 1 | 0 |
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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 30, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| September 30, 2022 | Monitoring Violations - Frequency of Sampling Violation | ST6 |
| September 30, 2022 | Reporting Violations - Failure to Notify | ST6 |
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.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.