LEXINGTON WWTF — NPDES permit NE0042668: limits, due date and EPA's record

NPDES permit NE0042668 · Major POTW · effective, expires 2031-06-30 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-06-30. Most often over: Nitrogen, ammonia total [as N] (3).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among NE permits in EPA's filings — check your permit).

Limits in force (306)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. fahrenheit	MO AVG	report only	all year
001	Temperature, water deg. fahrenheit	DAILY MX	report only	all year
001	pH	DAILY MN	>= 6.5 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	7 DA AVG	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 233 kg/d	all year
001	Solids, total suspended	7 DA AVG	<= 349 kg/d	all year
001	Oil and grease, hexane extr method	MO AVG	report only	all year
001	Oil and grease, hexane extr method	DAILY MX	<= 10 mg/L	all year
001	Nitrogen, total [as N]	MO AVG	report only	all year
001	Nitrogen, total [as N]	DAILY MX	report only	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 2.94 mg/L	Jan, Feb, Nov, Dec
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.74 mg/L	Mar, Apr, May
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.02 mg/L	Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 5.89 mg/L	Jan, Feb, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 3.48 mg/L	Mar, Apr, May
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.05 mg/L	Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	MO AVG	<= 16.33 kg/d	Jan, Feb, Nov, Dec
001	Nitrogen, ammonia total [as N]	MO AVG	<= 10.19 kg/d	Mar, Apr, May
001	Nitrogen, ammonia total [as N]	MO AVG	<= 6.38 kg/d	Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 32.77 kg/d	Jan, Feb, Nov, Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 20.45 kg/d	Mar, Apr, May
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 12.81 kg/d	Jun, Jul, Aug, Sep, Oct
001	Phosphorus, total [as P]	MO AVG	report only	all year
001	Phosphorus, total [as P]	DAILY MX	report only	all year
001	Cadmium, dissolved [as Cd]	MO AVG	report only	all year
001	Cadmium, dissolved [as Cd]	DAILY MX	report only	all year
001	Chromium, dissolved [as Cr]	MO AVG	report only	all year
001	Chromium, dissolved [as Cr]	DAILY MX	report only	all year
001	Copper, dissolved [as Cu]	MO AVG	report only	all year
001	Copper, dissolved [as Cu]	DAILY MX	report only	all year
001	Lead, dissolved [as Pb]	MO AVG	report only	all year
001	Lead, dissolved [as Pb]	DAILY MX	report only	all year
001	Nickel, dissolved [as Ni]	MO AVG	report only	all year
001	Nickel, dissolved [as Ni]	DAILY MX	report only	all year
001	Zinc, dissolved [as Zn]	MO AVG	report only	all year
001	Zinc, dissolved [as Zn]	DAILY MX	report only	all year
001	E. coli, MTEC-MF	GEO MEAN	<= 126 #/100mL	May, Jun, Jul, Aug, Sep
001	E. coli, MTEC-MF	MAXIMUM	<= 298 #/100mL	May, Jun, Jul, Aug, Sep
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Toxicity [acute], Ceriodaphnia dubia	MO AVG	report only	all year
001	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	<= 1 toxic	all year
001	Toxicity [acute], Pimephales promelas [Fathead Minnow]	MO AVG	report only	all year
001	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	<= 1 toxic	all year
001	Mercury, total [as Hg]	MO AVG	report only	all year
001	Mercury, total [as Hg]	DAILY MX	report only	all year
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 40 mg/L	all year
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 194 kg/d	all year
001	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 310 kg/d	all year
002	Temperature, water deg. fahrenheit	MO AVG	report only	all year
002	Temperature, water deg. fahrenheit	DAILY MX	report only	all year
002	Oxygen, dissolved [DO]	VALUE	report only	all year
002	Oxygen, dissolved [DO]	MN VALUE	report only	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
002	Solids, total suspended	MO AVG	<= 233 kg/d	all year
002	Solids, total suspended	WKLY AVG	<= 349 kg/d	all year
002	Oil and grease, hexane extr method	MO AVG	report only	all year
002	Oil and grease, hexane extr method	VALUE	report only	all year
002	Oil and grease, hexane extr method	DAILY MX	<= 10 mg/L	all year
002	Oil and grease, hexane extr method	MN VALUE	report only	all year
002	Nitrogen, total [as N]	MO AVG	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	MO AVG	<= 1.24 mg/L	Jan, Feb, Nov, Dec
002	Nitrogen, ammonia total [as N]	MO AVG	<= .88 mg/L	Mar, Apr, May
002	Nitrogen, ammonia total [as N]	MO AVG	<= .44 mg/L	Jun, Jul, Aug, Sep, Oct
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 2.48 mg/L	Jan, Feb, Nov, Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 1.76 mg/L	Mar, Apr, May
002	Nitrogen, ammonia total [as N]	DAILY MX	<= .89 mg/L	Jun, Jul, Aug, Sep, Oct
002	Nitrogen, ammonia total [as N]	MO AVG	<= 7.39 kg/d	Jan, Feb, Nov, Dec
002	Nitrogen, ammonia total [as N]	MO AVG	<= 5.15 kg/d	Mar, Apr, May
002	Nitrogen, ammonia total [as N]	MO AVG	<= 2.69 kg/d	Jun, Jul, Aug, Sep, Oct
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 14.82 kg/d	Jan, Feb, Nov, Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 10.33 kg/d	Mar, Apr, May
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 5.4 kg/d	Jun, Jul, Aug, Sep, Oct
002	Nitrogen, Kjeldahl, total [as N]	VALUE	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	MN VALUE	report only	all year
002	Nitrite + Nitrate total [as N]	VALUE	report only	all year
002	Nitrite + Nitrate total [as N]	MN VALUE	report only	all year
002	Phosphorus, total [as P]	MO AVG	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Cyanide, total [as CN]	VALUE	report only	all year
002	Cyanide, total [as CN]	MN VALUE	report only	all year
002	Hardness, total [as CaCO3]	VALUE	report only	all year
002	Hardness, total [as CaCO3]	MN VALUE	report only	all year
002	Beryllium, dissolved [as Be]	VALUE	report only	all year
002	Beryllium, dissolved [as Be]	MN VALUE	report only	all year
002	Cadmium, dissolved [as Cd]	MO AVG	report only	all year
002	Cadmium, dissolved [as Cd]	DAILY MX	report only	all year
002	Chromium, dissolved [as Cr]	MO AVG	report only	all year
002	Chromium, dissolved [as Cr]	DAILY MX	report only	all year
002	Copper, dissolved [as Cu]	MO AVG	report only	all year
002	Copper, dissolved [as Cu]	DAILY MX	report only	all year
002	Lead, dissolved [as Pb]	MO AVG	report only	all year
002	Lead, dissolved [as Pb]	DAILY MX	report only	all year
002	Thallium, dissolved [as Tl]	VALUE	report only	all year
002	Thallium, dissolved [as Tl]	MN VALUE	report only	all year
002	Nickel, dissolved [as Ni]	MO AVG	report only	all year
002	Nickel, dissolved [as Ni]	DAILY MX	report only	all year
002	Zinc, dissolved [as Zn]	MO AVG	report only	all year
002	Zinc, dissolved [as Zn]	DAILY MX	report only	all year
002	Antimony, dissolved [as Sb]	VALUE	report only	all year
002	Antimony, dissolved [as Sb]	MN VALUE	report only	all year
002	Selenium, dissolved [as Se]	VALUE	report only	all year
002	Selenium, dissolved [as Se]	MN VALUE	report only	all year
002	E. coli, MTEC-MF	MO AVG	<= 126 #/100mL	May, Jun, Jul, Aug, Sep
002	E. coli, MTEC-MF	DAILY MX	<= 298 #/100mL	May, Jun, Jul, Aug, Sep
002	Dichlorobromomethane	VALUE	report only	all year
002	Dichlorobromomethane	MN VALUE	report only	all year
002	Carbon tetrachloride	VALUE	report only	all year
002	Carbon tetrachloride	MN VALUE	report only	all year
002	1,2-Dichloroethane	VALUE	report only	all year
002	1,2-Dichloroethane	MN VALUE	report only	all year
002	Bromoform	VALUE	report only	all year
002	Bromoform	MN VALUE	report only	all year
002	Dibromochloromethane	VALUE	report only	all year
002	Dibromochloromethane	MN VALUE	report only	all year
002	Chloroform	VALUE	report only	all year
002	Chloroform	MN VALUE	report only	all year
002	Toluene	VALUE	report only	all year
002	Toluene	MN VALUE	report only	all year
002	Benzene	VALUE	report only	all year
002	Benzene	MN VALUE	report only	all year
002	Acenaphthylene	VALUE	report only	all year
002	Acenaphthylene	MN VALUE	report only	all year
002	Acenaphthene	VALUE	report only	all year
002	Acenaphthene	MN VALUE	report only	all year
002	Acrolein	VALUE	report only	all year
002	Acrolein	MN VALUE	report only	all year
002	Acrylonitrile	VALUE	report only	all year
002	Acrylonitrile	MN VALUE	report only	all year
002	Anthracene	VALUE	report only	all year
002	Anthracene	MN VALUE	report only	all year
002	Benzo[b]fluoranthene	VALUE	report only	all year
002	Benzo[b]fluoranthene	MN VALUE	report only	all year
002	Benzo[k]fluoranthene	VALUE	report only	all year
002	Benzo[k]fluoranthene	MN VALUE	report only	all year
002	Benzo[a]pyrene	VALUE	report only	all year
002	Benzo[a]pyrene	MN VALUE	report only	all year
002	Bis[2-chloroethyl] ether	VALUE	report only	all year
002	Bis[2-chloroethyl] ether	MN VALUE	report only	all year
002	Bis[2-chloroethoxy]methane	VALUE	report only	all year
002	Bis[2-chloroethoxy]methane	MN VALUE	report only	all year
002	Bis[2-chloroisopropyl] ether	VALUE	report only	all year
002	Bis[2-chloroisopropyl] ether	MN VALUE	report only	all year
002	Butyl benzyl phthalate	VALUE	report only	all year
002	Butyl benzyl phthalate	MN VALUE	report only	all year
002	Chlorobenzene	VALUE	report only	all year
002	Chlorobenzene	MN VALUE	report only	all year
002	Chrysene	VALUE	report only	all year
002	Chrysene	MN VALUE	report only	all year
002	Diethyl phthalate	VALUE	report only	all year
002	Diethyl phthalate	MN VALUE	report only	all year
002	Dimethyl phthalate	VALUE	report only	all year
002	Dimethyl phthalate	MN VALUE	report only	all year
002	1,2-Diphenylhydrazine	VALUE	report only	all year
002	1,2-Diphenylhydrazine	MN VALUE	report only	all year
002	Ethylbenzene	VALUE	report only	all year
002	Ethylbenzene	MN VALUE	report only	all year
002	Fluoranthene	VALUE	report only	all year
002	Fluoranthene	MN VALUE	report only	all year
002	Fluorene	VALUE	report only	all year
002	Fluorene	MN VALUE	report only	all year
002	Hexachlorocyclopentadiene	VALUE	report only	all year
002	Hexachlorocyclopentadiene	MN VALUE	report only	all year
002	Hexachlorobutadiene	VALUE	report only	all year
002	Hexachlorobutadiene	MN VALUE	report only	all year
002	Indeno[1,2,3-cd]pyrene	VALUE	report only	all year
002	Indeno[1,2,3-cd]pyrene	MN VALUE	report only	all year
002	Isophorone	VALUE	report only	all year
002	Isophorone	MN VALUE	report only	all year
002	Methyl bromide [Bromomethane]	VALUE	report only	all year
002	Methyl bromide [Bromomethane]	MN VALUE	report only	all year
002	Methyl chloride [Chloromethane]	VALUE	report only	all year
002	Methyl chloride [Chloromethane]	MN VALUE	report only	all year
002	Methylene chloride	VALUE	report only	all year
002	Methylene chloride	MN VALUE	report only	all year
002	N-Nitrosodi-N-propylamine	VALUE	report only	all year
002	N-Nitrosodi-N-propylamine	MN VALUE	report only	all year
002	N-Nitrosodiphenylamine	VALUE	report only	all year
002	N-Nitrosodiphenylamine	MN VALUE	report only	all year
002	N-Nitrosodimethylamine [NDMA]	VALUE	report only	all year
002	N-Nitrosodimethylamine [NDMA]	MN VALUE	report only	all year
002	Nitrobenzene	VALUE	report only	all year
002	Nitrobenzene	MN VALUE	report only	all year
002	Phenanthrene	VALUE	report only	all year
002	Phenanthrene	MN VALUE	report only	all year
002	Pyrene	VALUE	report only	all year
002	Pyrene	MN VALUE	report only	all year
002	Tetrachloroethylene	VALUE	report only	all year
002	Tetrachloroethylene	MN VALUE	report only	all year
002	1,1-Dichloroethane	VALUE	report only	all year
002	1,1-Dichloroethane	MN VALUE	report only	all year
002	1,1-Dichloroethylene	VALUE	report only	all year
002	1,1-Dichloroethylene	MN VALUE	report only	all year
002	1,1,1-Trichloroethane	VALUE	report only	all year
002	1,1,1-Trichloroethane	MN VALUE	report only	all year
002	1,1,2-Trichloroethane	VALUE	report only	all year
002	1,1,2-Trichloroethane	MN VALUE	report only	all year
002	1,1,2,2-Tetrachloroethane	VALUE	report only	all year
002	1,1,2,2-Tetrachloroethane	MN VALUE	report only	all year
002	Benzo[ghi]perylene	VALUE	report only	all year
002	Benzo[ghi]perylene	MN VALUE	report only	all year
002	Benzo[a]anthracene	VALUE	report only	all year
002	Benzo[a]anthracene	MN VALUE	report only	all year
002	1,2-Dichlorobenzene	VALUE	report only	all year
002	1,2-Dichlorobenzene	MN VALUE	report only	all year
002	1,2-Dichloropropane	VALUE	report only	all year
002	1,2-Dichloropropane	MN VALUE	report only	all year
002	trans-1,2-Dichloroethylene	VALUE	report only	all year
002	trans-1,2-Dichloroethylene	MN VALUE	report only	all year
002	1,2,4-Trichlorobenzene	VALUE	report only	all year
002	1,2,4-Trichlorobenzene	MN VALUE	report only	all year
002	Dibenz[a,h]anthracene	VALUE	report only	all year
002	Dibenz[a,h]anthracene	MN VALUE	report only	all year
002	1,3-Dichlorobenzene	VALUE	report only	all year
002	1,3-Dichlorobenzene	MN VALUE	report only	all year
002	1,4-Dichlorobenzene	VALUE	report only	all year
002	1,4-Dichlorobenzene	MN VALUE	report only	all year
002	2-Chloroethyl vinyl ether, [mixed]	VALUE	report only	all year
002	2-Chloroethyl vinyl ether, [mixed]	MN VALUE	report only	all year
002	2-Chloronaphthalene	VALUE	report only	all year
002	2-Chloronaphthalene	MN VALUE	report only	all year
002	2-Chlorophenol	VALUE	report only	all year
002	2-Chlorophenol	MN VALUE	report only	all year
002	2-Nitrophenol	VALUE	report only	all year
002	2-Nitrophenol	MN VALUE	report only	all year
002	Di-n-octyl phthalate	VALUE	report only	all year
002	Di-n-octyl phthalate	MN VALUE	report only	all year
002	2,4-Dichlorophenol	VALUE	report only	all year
002	2,4-Dichlorophenol	MN VALUE	report only	all year
002	2,4-Dimethylphenol	VALUE	report only	all year
002	2,4-Dimethylphenol	MN VALUE	report only	all year
002	2,4-Dinitrotoluene	VALUE	report only	all year
002	2,4-Dinitrotoluene	MN VALUE	report only	all year
002	2,4-Dinitrophenol	VALUE	report only	all year
002	2,4-Dinitrophenol	MN VALUE	report only	all year
002	2,4,6-Trichlorophenol	VALUE	report only	all year
002	2,4,6-Trichlorophenol	MN VALUE	report only	all year
002	2,6-Dinitrotoluene	VALUE	report only	all year
002	2,6-Dinitrotoluene	MN VALUE	report only	all year
002	3,3'-Dichlorobenzidine	VALUE	report only	all year
002	3,3'-Dichlorobenzidine	MN VALUE	report only	all year
002	4-Bromophenyl phenyl ether	VALUE	report only	all year
002	4-Bromophenyl phenyl ether	MN VALUE	report only	all year
002	4-Chlorophenyl phenyl ether	VALUE	report only	all year
002	4-Chlorophenyl phenyl ether	MN VALUE	report only	all year
002	4-Nitrophenol	VALUE	report only	all year
002	4-Nitrophenol	MN VALUE	report only	all year
002	Phenol	VALUE	report only	all year
002	Phenol	MN VALUE	report only	all year
002	Naphthalene	VALUE	report only	all year
002	Naphthalene	MN VALUE	report only	all year
002	Pentachlorophenol	VALUE	report only	all year
002	Pentachlorophenol	MN VALUE	report only	all year
002	Di[2-ethylhexyl] phthalate [DEHP]	VALUE	report only	all year
002	Di[2-ethylhexyl] phthalate [DEHP]	MN VALUE	report only	all year
002	Di-n-butyl phthalate	VALUE	report only	all year
002	Di-n-butyl phthalate	MN VALUE	report only	all year
002	Benzidine	VALUE	report only	all year
002	Benzidine	MN VALUE	report only	all year
002	Vinyl chloride	VALUE	report only	all year
002	Vinyl chloride	MN VALUE	report only	all year
002	Trichloroethylene	VALUE	report only	all year
002	Trichloroethylene	MN VALUE	report only	all year
002	Hexachlorobenzene	VALUE	report only	all year
002	Hexachlorobenzene	MN VALUE	report only	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Toxicity [acute], Ceriodaphnia dubia	MO AVG	report only	all year
002	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	<= 1 tox acute	all year
002	Toxicity [acute], Pimephales promelas [Fathead Minnow]	MO AVG	report only	all year
002	Toxicity [acute], Pimephales promelas [Fathead Minnow]	MAXIMUM	<= 1 tox acute	all year
002	Phenolic compounds, total	VALUE	report only	all year
002	Phenolic compounds, total	MN VALUE	report only	all year
002	Solids, total dissolved	VALUE	report only	all year
002	Solids, total dissolved	MN VALUE	report only	all year
002	Mercury, total [as Hg]	MO AVG	report only	all year
002	Mercury, total [as Hg]	DAILY MX	report only	all year
002	1,3-Dichloropropene	VALUE	report only	all year
002	1,3-Dichloropropene	MN VALUE	report only	all year
002	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year
002	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 40 mg/L	all year
002	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 194 kg/d	all year
002	BOD, carbonaceous [5 day, 20 C]	WKLY AVG	<= 310 kg/d	all year
002	p-Chloro-m-cresol	VALUE	report only	all year
002	p-Chloro-m-cresol	MN VALUE	report only	all year
002	Chloroethane	VALUE	report only	all year
002	Chloroethane	MN VALUE	report only	all year
INF1	pH	VALUE	report only	all year
INF1	Solids, total suspended	VALUE	report only	all year
INF1	Oil and grease, hexane extr method	VALUE	report only	all year
INF1	Nitrogen, ammonia total [as N]	VALUE	report only	all year
INF1	Flow, in conduit or thru treatment plant	VALUE	report only	all year
INF1	BOD, carbonaceous [5 day, 20 C]	VALUE	report only	all year
INF2	pH	VALUE	report only	all year
INF2	Solids, total suspended	VALUE	report only	all year
INF2	Oil and grease, hexane extr method	VALUE	report only	all year
INF2	Nitrogen, ammonia total [as N]	VALUE	report only	all year
INF2	Flow, in conduit or thru treatment plant	VALUE	report only	all year
INF2	BOD, carbonaceous [5 day, 20 C]	VALUE	report only	all year