Clean Water Act discharge permit · NPDES KY0020125

CALHOUN WWTP, Calhoun, KY: NPDES KY0020125 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
17Pollutants under a numeric limit
9Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

CALHOUN WWTP, held by Calhoun WWTP, holds NPDES permit KY0020125, which discharges to Green River. EPA’s file records it issued October 29, 2018 and expiring November 30, 2023.

CALHOUN WWTP, Calhoun, Kentucky: Individual permit KY0020125, held by Calhoun WWTP; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued October 29, 2018, term to November 30, 2023; discharges to GREEN RIVER; Sewage Treatment Facilities.

E. coli: 2 limits, 28 violations of any kind, 28 effluent exceedances, latest June 30, 2018, largest 908% over the limit.
Phosphorus, total [as P]: 6 limits, 22 violations of any kind, 22 effluent exceedances, latest September 30, 2018, largest 170% over the limit.
Solids, suspended percent removal: 1 limit, 16 violations of any kind, 15 effluent exceedances, latest April 30, 2020, largest 193% over the limit.
Solids, total suspended: 6 limits, 22 violations of any kind, 14 effluent exceedances, latest April 30, 2020, largest 189% over the limit.
Coliform, fecal general: 0 limits, 14 violations of any kind, 12 effluent exceedances, latest July 31, 2006, largest 99,999% over the limit.
Chlorine, total residual: 2 limits, 7 violations of any kind, 5 effluent exceedances, latest June 30, 2017, largest 57,795% over the limit.
BOD, 5-day, 20 deg. C: 6 limits, 15 violations of any kind, 3 effluent exceedances, latest June 30, 2023, largest 100% over the limit.
BOD, 5-day, percent removal: 1 limit, 3 violations of any kind, 2 effluent exceedances, latest February 28, 2025, largest 53% over the limit.
Oxygen, dissolved [DO]: 1 limit, 3 violations of any kind, 1 effluent exceedance, latest August 31, 2011, largest 94% over the limit.
Nitrogen, ammonia total [as N]: 2 limits, 12 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 4 limits, 6 violations of any kind, 0 effluent exceedances.
Hardness, total [as CaCO3]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
pH: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Cadmium, dissolved [as Cd]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Copper, dissolved [as Cu]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Lead, dissolved [as Pb]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Zinc, dissolved [as Zn]: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Zinc, total recoverable: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Cadmium, total recoverable: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Lead, total recoverable: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Copper, total recoverable: 0 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
Temperature, water deg. fahrenheit: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Oil & Grease: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl Total: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nitrite Plus Nitrate Total: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Solids, total dissolved [TDS]: 2 limits, 0 violations of any kind, 0 effluent exceedances.

Kentucky holds 294 Publicly owned treatment works coverages of this permit type in EPA’s file; 190 were issued before KY0020125.

Coverages issued nearest KY0020125

September 24, 2018: SOUTH HOPKINS REGIONAL WWTP, Nortonville, KY0066583, held by South Hopkins Regional WWTP
September 24, 2018: GRANT COUNTY STP, Dry Ridge, KY0091634, held by Grant County STP
September 26, 2018: BENTON STP, Benton, KY0021172, held by Benton STP
October 3, 2018: CMUC STP, Morgantown, KY0021024, held by Cmuc STP
October 16, 2018: MARTIN STP, Martin, KY0026921, held by Martin STP
November 7, 2018: EXECUTIVE PARK SUBDIVISION NMCSD, Berea, KY0056561, held by Executive Park Subdivision NMCSD
November 15, 2018: EVARTS STP, Evarts, KY0073091, held by Evarts STP
November 15, 2018: OHIO RIVER WWTP, Goshen, KY0106143, held by Louisville and Jefferson County MSD
November 16, 2018: BELFRY WWTP, Belfry, KY0108260, held by Belfry WWTP
November 28, 2018: FLEMING NEON STP, Fleming-Neon, KY0027405, held by Fleming Neon STP

CALHOUN WWTP among its neighbors

Its county holds 14, 0 of them major permits; KY0020125 is a minor permit.

Other permits in the county

2-8852.00 MCLEAN - KY 56 _KY 1233 INTERSECTION RECONSTRUCT TO CORRECT LINE OF SI, Beech Grove (Mclean): KYR10T364, minor permit, discharging to Mason Creek, permit term to December 31, 2029
2-946 - MCLEAN COUNTY - HSIP, Sacramento: KYR10U286, minor permit, discharging to Pond River, permit term to December 31, 2029
ADVANCED DRAINAGE SYSTEMS, Calhoun: KYR004773, minor permit, permit term to July 31, 2028
ALERIS ROLLED PRODUCTS INC, Calhoun: KY0077976, minor permit, discharging to BUCK CRK, permit term to January 31, 2024
ISLAND STP, Island: KY0066605, minor permit, discharging to GREEN RIVER, permit term to June 30, 2023
LIVERMORE STP, Livermore: KY0020613, minor permit, discharging to GREEN RIVER, permit term to November 30, 2024
MCLEAN CO STATE MAINTENANCE GARAGE, Calhoun: KYR004679, minor permit, permit term to July 31, 2028
PERDUE FARMS LIVERMORE FEEDMIL, Livermore: KY0102385, minor permit, discharging to GREEN RIVER, permit term to November 30, 2024
PHILLIPS ENTERPRISES INC, Livermore: KY0114529, not classed
ROUGH CREEK MINING LLC (875-5011), Delaware: KY0110973, minor permit, discharging to TRIBUTARY OF GREEN RIVER, permit term to July 31, 2019

Identity

Facility as filed	CALHOUN WWTP
Permittee as filed	Calhoun WWTP
NPDES ID	KY0020125
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	October 29, 2018
Expiration date	November 30, 2023
Address	Calhoun, KY 42327
Receiving water	GREEN RIVER
Program components on file	POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

27Pollutants on file
17Under a numeric limit
21With a violation of any kind
9With 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
E. coli	2	28	28	June 30, 2018	908% over the limit
Phosphorus, total [as P]	6	22	22	September 30, 2018	170% over the limit
Solids, suspended percent removal	1	16	15	April 30, 2020	193% over the limit
Solids, total suspended	6	22	14	April 30, 2020	189% over the limit
Coliform, fecal general	0	14	12	July 31, 2006	99,999% over the limit
Chlorine, total residual	2	7	5	June 30, 2017	57,795% over the limit
BOD, 5-day, 20 deg. C	6	15	3	June 30, 2023	100% over the limit
BOD, 5-day, percent removal	1	3	2	February 28, 2025	53% over the limit
Oxygen, dissolved [DO]	1	3	1	August 31, 2011	94% over the limit
Nitrogen, ammonia total [as N]	2	12	0
Flow, in conduit or thru treatment plant	4	6	0
Hardness, total [as CaCO3]	0	4	0
pH	2	2	0
Cadmium, dissolved [as Cd]	0	2	0
Copper, dissolved [as Cu]	0	2	0
Lead, dissolved [as Pb]	0	2	0
Zinc, dissolved [as Zn]	0	2	0
Zinc, total recoverable	0	2	0
Cadmium, total recoverable	0	2	0
Lead, total recoverable	0	2	0
Copper, total recoverable	0	2	0
Nitrogen, total [as N]	4	0	0
Temperature, water deg. fahrenheit	2	0	0
Oil & Grease	2	0	0
Nitrogen, Kjeldahl Total	2	0	0
Nitrite Plus Nitrate Total	2	0	0
Solids, total dissolved [TDS]	2	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES KY0020125.

Inspections

EPA’s inspection file holds no inspection for NPDES KY0020125.

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 KY0020125.

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

This public-records page covers NPDES permit KY0020125 for CALHOUN WWTP in Calhoun, KY, held by Calhoun WWTP and discharging to the GREEN RIVER, with a Minor Discharger classification and permit status listed as administratively continued. The page lists 17 for discharger class, 9 pollutants under a numeric limit, and 27 pollutants on file in the effluent limits section.