St. Marks Powder, Inc. — NPDES permit FL0002518: limits, due date and EPA's record

NPDES permit FL0002518 · Major NON-POTW · administratively continued, expires 2026-02-02 · EPA's file as of 2026-09-19

This permit expired on 2026-02-02 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: 2026-07-31. Most often over: Coliform, fecal general (1).

Reporting

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

Limits in force (64)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. fahrenheit	DAILY MX	<= 90 deg F	all year
002	Oxygen, dissolved percent saturation	TM	>= 90 % sample comp	all year
002	pH	DAILY MN	>= 6 SU	all year
002	pH	DAILY MX	<= 8.5 SU	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	DAILY MX	report only	all year
002	Nitrogen, total [as N]	MO AVG	report only	all year
002	Nitrogen, total [as N]	MO TOTAL	report only	all year
002	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
002	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	DAILY MX	report only	all year
002	Phosphorus, total [as P]	MO AVG	report only	all year
002	N-Nitrosodiphenylamine	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	MO AV MN	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	DAILY MX	<= .01 mg/L	all year
002	E. coli	MO GEOMN	report only	all year
002	E. coli	90TH %	report only	all year
002	Diphenylamine	DAILY MX	report only	all year
003	pH	DAILY MN	>= 6 SU	all year
003	pH	DAILY MX	<= 8.5 SU	all year
003	Solids, total suspended	MO AVG	<= 25 mg/L	all year
003	Solids, total suspended	DAILY MX	<= 40 mg/L	all year
003	Solids, total suspended	DAILY MX	<= 179.4 lb/d	all year
003	Solids, total suspended	MO AVG	<= 111.8 lb/d	all year
003	Nitrogen, total [as N]	MO AVG	report only	all year
003	Nitrogen, total [as N]	DAILY MX	report only	all year
003	Nitrogen, total [as N]	DAILY MX	<= 400 lb/d	all year
003	Nitrogen, total [as N]	MO AVG	report only	all year
003	Nitrogen, total [as N]	MO TOTAL	<= 8000 lb/mo	all year
003	Nitrogen, total [as N]	ANNL TOT	<= 16535 lb/yr	all year
003	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
003	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
003	Nitrite + Nitrate total [as N]	MO AVG	report only	all year
003	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
003	Phosphorus, total [as P]	MO AVG	<= 1 mg/L	all year
003	Phosphorus, total [as P]	DAILY MX	<= 2 mg/L	all year
003	Phosphorus, total [as P]	DAILY MX	<= 9.06 lb/d	all year
003	Phosphorus, total [as P]	MO AVG	<= 4.53 lb/d	all year
003	N-Nitrosodiphenylamine	DAILY MX	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	Chlorine, total residual	MINIMUM	>= .5 mg/L	all year
003	E. coli	MO GEOMN	report only	all year
003	E. coli	90TH %	<= 410 #/100mL	all year
003	Coliform, fecal general	DAILY MX	<= 800 #/100mL	all year
003	Coliform, fecal general	90TH %	<= 400 #/100mL	all year
003	Coliform, fecal general	MO GEOMN	report only	all year
003	Coliform, fecal general	ANNL AVG	<= 200 #/100mL	all year
003	Diphenylamine	DAILY MX	report only	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 40 mg/L	all year
003	BOD, carbonaceous [5 day, 20 C]	DAILY MX	<= 181.1 lb/d	all year
003	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 112.6 lb/d	all year
003	Chemical Oxygen Demand [COD]	DAILY MX	report only	all year
003	Chemical Oxygen Demand [COD]	DAILY MX	<= 324.2 lb/d	all year
003	Chemical Oxygen Demand [COD]	ANNL AVG	<= 191.2 lb/d	all year
003	IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia	MINIMUM	>= 100 %	all year
003	IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia	MINIMUM	>= 100 %	all year
003	IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia	MINIMUM	>= 100 %	all year
003	IC25 Static Renewal 7 Day Chronic Chrpimephales	MINIMUM	>= 100 %	all year
003	IC25 Static Renewal 7 Day Chronic Chrpimephales	MINIMUM	>= 100 %	all year
003	IC25 Static Renewal 7 Day Chronic Chrpimephales	MINIMUM	>= 100 %	all year