VIENNA POWER LLC — NPDES permit MD0000094: limits, due date and EPA's record

NPDES permit MD0000094 · Major NON-POTW · effective, expires 2029-03-31 · 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.

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

Reporting

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

Limits in force (14)

Outfall	Parameter	Statistic	Limit	Months
003	pH	MINIMUM	>= 6 SU	all year
003	pH	MAXIMUM	<= 9 SU	all year
003	Solids, total suspended	MO AVG	<= 30 mg/L	all year
003	Solids, total suspended	DAILY MX	<= 100 mg/L	all year
003	Oil & Grease	MO AVG	<= 15 mg/L	all year
003	Oil & Grease	DAILY MX	<= 20 mg/L	all year
003	Copper, total [as Cu]	MX MO AV	<= 9 ug/L	all year
003	Copper, total [as Cu]	DAILY MX	<= 13 ug/L	all year
003	Nickel, total [as Ni]	MO AVG	report only	all year
003	Nickel, total [as Ni]	DAILY MX	report only	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
003	Chlorine, total residual	MX MO AV	<= 11 ug/L	all year
003	Chlorine, total residual	DAILY MX	<= 19 ug/L	all year