Thoroughbred Disposal LLC — NPDES permit KY0100331: limits, due date and EPA's record

Refuse Systems, Lexington, Kentucky. NPDES permit KY0100331 expired Mar 31, 2026; its limits still apply. Last 12 months: over a limit 6 times (last December 2025), 259 required values missing. Source: EPA ECHO, Oct 22, 2026.

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period ending	Parameter	Reported	Limit	Over by
October 2025	Nitrogen, ammonia total [as N], daily maximum	22.3 mg/L	≤ 10 mg/L	123%
October 2025	Nitrogen, ammonia total [as N], monthly average	22.3 mg/L	≤ 4.1 mg/L	444%
October 2025	Solids, total suspended, monthly average	29 mg/L	≤ 27 mg/L	7%
October 2025	Toxicity, final conc toxicity units, maximum	3.44 tox acute	≤ 1 tox acute	244%
November 2025	Toxicity, final conc toxicity units, maximum	> 5 tox acute	≤ 1 tox acute	—
December 2025	Toxicity, final conc toxicity units, maximum	< 4.98 tox acute	≤ 1 tox acute	398%

Limits in force (73)

Parameter	Statistic	Limit	Months	Outfall
BOD, 5-day, 20 deg. C	monthly average	≤ 37 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 140 mg/L	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	monthly average	≤ 27 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 88 mg/L	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ 4.1 mg/L	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ 4.9 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	001
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	001
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	001
Zinc, total recoverable	monthly average	≤ .11 mg/L	all year	001
Zinc, total recoverable	daily maximum	≤ .12 mg/L	all year	001
Phenol	monthly average	≤ .015 mg/L	all year	001
Phenol	daily maximum	≤ .026 mg/L	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
p-Cresol	monthly average	≤ .014 mg/L	all year	001
p-Cresol	daily maximum	≤ .025 mg/L	all year	001
Benzoic acids, total	monthly average	≤ .071 mg/L	all year	001
Benzoic acids, total	daily maximum	≤ .12 mg/L	all year	001
.alpha.-Terpineol	monthly average	≤ .016 mg/L	all year	001
.alpha.-Terpineol	daily maximum	≤ .033 mg/L	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 37 mg/L	all year	002
BOD, 5-day, 20 deg. C	daily maximum	≤ 140 mg/L	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	monthly average	≤ 27 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 88 mg/L	all year	002
Nitrogen, ammonia total [as N]	monthly average	≤ 4.1 mg/L	all year	002
Nitrogen, ammonia total [as N]	monthly average	≤ 4.9 mg/L	all year	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	all year	002
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	002
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	002
Zinc, total recoverable	monthly average	≤ .11 mg/L	all year	002
Zinc, total recoverable	daily maximum	≤ .12 mg/L	all year	002
Phenol	monthly average	≤ .015 mg/L	all year	002
Phenol	daily maximum	≤ .026 mg/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
p-Cresol	monthly average	≤ .014 mg/L	all year	002
p-Cresol	daily maximum	≤ .025 mg/L	all year	002
Benzoic acids, total	monthly average	≤ .071 mg/L	all year	002
Benzoic acids, total	daily maximum	≤ .12 mg/L	all year	002
.alpha.-Terpineol	monthly average	≤ .016 mg/L	all year	002
.alpha.-Terpineol	daily maximum	≤ .033 mg/L	all year	002
BOD, 5-day, 20 deg. C	monthly average	≤ 37 mg/L	all year	003
BOD, 5-day, 20 deg. C	daily maximum	≤ 140 mg/L	all year	003
pH	minimum	≥ 6 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Solids, total suspended	monthly average	≤ 27 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 88 mg/L	all year	003
Nitrogen, ammonia total [as N]	monthly average	≤ 4.1 mg/L	Mar, May, Jun, Jul, Aug, Sep, Oct	003
Nitrogen, ammonia total [as N]	monthly average	≤ 4.9 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	Mar, May, Jun, Jul, Aug, Sep, Oct	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	Jan, Feb, Mar, Apr, Nov, Dec	003
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	003
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	003
Zinc, total recoverable	monthly average	≤ .11 mg/L	all year	003
Zinc, total recoverable	daily maximum	≤ .12 mg/L	all year	003
Phenol	monthly average	≤ .015 mg/L	all year	003
Phenol	daily maximum	≤ .026 mg/L	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Toxicity, final conc toxicity units	maximum	≤ 1 tox acute	all year	003
p-Cresol	monthly average	≤ .014 mg/L	all year	003
p-Cresol	daily maximum	≤ .025 mg/L	all year	003
Benzoic acids, total	monthly average	≤ .071 mg/L	all year	003
Benzoic acids, total	daily maximum	≤ .12 mg/L	all year	003
.alpha.-Terpineol	monthly average	≤ .016 mg/L	all year	003
.alpha.-Terpineol	daily maximum	≤ .033 mg/L	all year	003

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/KY0100331 · MCP: https://passage-data.com/mcp