JACKSON COUNTY PORT AUTHORITY, BLACK CREEK COOLING WATER FACILITY — NPDES permit MS0021601: limits, due date and EPA's record

NPDES permit MS0021601 · Minor 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

Last period with anything received: 2026-07-31. Most often over: Temp. diff. between up/down stream deg. F (2), Temperature, water deg. fahrenheit (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (20)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. fahrenheit	MO AVG	report only	all year
001	Temperature, water deg. fahrenheit	DAILY MX	<= 90 deg F	all year
001	pH	MINIMUM	report only	all year
001	pH	MAXIMUM	report only	all year
001	Temp. diff. between up/down stream deg. F	MAXIMUM	<= 5 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	DAILY MX	report only	all year
001	pH change [range]	MAXIMUM	report only	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	pH	MINIMUM	report only	all year
002	pH	MAXIMUM	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
003	Temperature, water deg. fahrenheit	MO AVG	report only	all year
003	Temperature, water deg. fahrenheit	DAILY MX	<= 90 deg F	all year
003	pH	MINIMUM	report only	all year
003	pH	MAXIMUM	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