TELEDYNE ENERGY SYSTEMS,INC. — NPDES permit MD0065901: limits, due date and EPA's record

NPDES permit MD0065901 · Minor NON-POTW · administratively continued, expires 2026-07-31 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

This permit expired on 2026-07-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

Last period with anything received: 2026-06-30. Most often over: Chlorine, total residual (2).

Reporting

Reports are due about 58 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (18)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	INST MIN	>= 5 mg/L	all year
001	Oxygen, dissolved [DO]	INST MIN	>= 5 mg/L	all year
001	Oxygen, dissolved [DO]	MO AV MN	>= 6 mg/L	all year
001	Oxygen, dissolved [DO]	MO AV MN	>= 6 mg/L	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Temp. diff. between up/down stream deg. F	DAILY MX	<= 0 deg F	all year
001	Temp. diff. between up/down stream deg. F	DAILY MX	<= 0 deg F	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
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	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	MO AVG	<= .1 mg/L	all year
001	Chlorine, total residual	MO AVG	<= .1 mg/L	all year
001	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year
001	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year