RTX CORPORATION — NPDES permit ME0022861: limits, due date and EPA's record

NPDES permit ME0022861 · Minor NON-POTW · effective, expires 2029-07-31 · EPA's file as of 2026-09-19

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

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among ME permits in EPA's filings — check your permit).

Limits in force (50)

Outfall	Parameter	Statistic	Limit	Months
003	Temperature, water deg. fahrenheit	DAILY MX	<= 82 deg F	Jun, Jul, Aug, Sep
003	pH	MINIMUM	>= 6 SU	all year
003	pH	MAXIMUM	<= 9 SU	all year
003	Solids, total suspended	MO AVG	<= 15 mg/L	all year
003	Solids, total suspended	DAILY MX	<= 15 mg/L	all year
003	Solids, total suspended	MO AVG	<= 6.3 lb/d	all year
003	Solids, total suspended	DAILY MX	<= 6.3 lb/d	all year
003	Oil & Grease	MO AVG	<= 15 mg/L	all year
003	Oil & Grease	DAILY MX	<= 15 mg/L	all year
003	Oil & Grease	MO AVG	<= 6.3 lb/d	all year
003	Oil & Grease	DAILY MX	<= 6.3 lb/d	all year
003	Phosphorus, total [as P]	MO AVG	<= .034 lb/d	Jun, Jul, Aug, Sep
003	Phosphorus, total [as P]	DAILY MX	<= .1 lb/d	Jun, Jul, Aug, Sep
003	Cyanide, total [as CN]	MO AVG	<= 201 ug/L	all year
003	Cyanide, total [as CN]	DAILY MX	<= 726 ug/L	all year
003	Cyanide, total [as CN]	MO AVG	<= .06 lb/d	all year
003	Cyanide, total [as CN]	DAILY MX	<= .2 lb/d	all year
003	Cadmium, total [as Cd]	MO AVG	<= 3.1 ug/L	all year
003	Cadmium, total [as Cd]	DAILY MX	<= 13.9 ug/L	all year
003	Cadmium, total [as Cd]	MO AVG	<= .00086 lb/d	all year
003	Cadmium, total [as Cd]	DAILY MX	<= .0036 lb/d	all year
003	Copper, total [as Cu]	MO AVG	<= 91 ug/L	all year
003	Copper, total [as Cu]	DAILY MX	<= 101 ug/L	all year
003	Copper, total [as Cu]	MO AVG	<= .025 lb/d	all year
003	Copper, total [as Cu]	DAILY MX	<= .028 lb/d	all year
003	Lead, total [as Pb]	MO AVG	<= 16 ug/L	all year
003	Lead, total [as Pb]	DAILY MX	<= 87 ug/L	all year
003	Lead, total [as Pb]	MO AVG	<= .004 lb/d	all year
003	Lead, total [as Pb]	DAILY MX	<= .1 lb/d	all year
003	Nickel, total [as Ni]	MO AVG	<= 480 ug/L	all year
003	Nickel, total [as Ni]	DAILY MX	<= 1000 ug/L	all year
003	Nickel, total [as Ni]	MO AVG	<= .14 lb/d	all year
003	Nickel, total [as Ni]	DAILY MX	<= 1.1 lb/d	all year
003	Zinc, total [as Zn]	MO AVG	<= 250 ug/L	all year
003	Zinc, total [as Zn]	DAILY MX	<= 250 ug/L	all year
003	Zinc, total [as Zn]	MO AVG	<= .33 lb/d	all year
003	Zinc, total [as Zn]	DAILY MX	<= .28 lb/d	all year
003	Priority Pollutants	VALUE	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	<= 50000 gal/d	all year
003	Analytical Chemistry	VALUE	report only	all year
003	Analytical Chemistry	VALUE	report only	all year
003	Mercury, total [as Hg]	MO AVG	<= 4.5 ng/L	all year
003	Mercury, total [as Hg]	DAILY MX	<= 6.8 ng/L	all year
003	NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia	DAILY MN	report only	all year
003	NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia	DAILY MN	report only	all year
003	Noel Statre 10Day Chronic Salvel. Salmonid	VALUE	report only	all year
003	NOAEL Static 48Hr Acute Ceriodaphnia dubia	DAILY MN	report only	all year
003	NOAEL Static 48Hr Acute Ceriodaphnia dubia	DAILY MN	report only	all year
003	NOAEL Static 48Hr Acute Salvel. Salmonid	DAILY MN	report only	all year
003	NOAEL Static 48Hr Acute Salvel. Salmonid	DAILY MN	report only	all year