FRIENDSVILLE WWTP — NPDES permit MD0021083: limits, due date and EPA's record

NPDES permit MD0021083 · Minor POTW · effective, expires 2030-10-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-07-31. Most often over: BOD, 5-day, 20 deg. C (3), Solids, total suspended (1), E. coli (1).

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 (24)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. fahrenheit	MAXIMUM	report only	all year
001	Temperature, water deg. fahrenheit	MO AVG	report only	all year
001	Temperature, water deg. fahrenheit	MO AVG	report only	all year
001	Oxygen, dissolved [DO]	INST MIN	>= 5 mg/L	all year
001	Oxygen, dissolved [DO]	MINIMUM	>= 6 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX MO AV	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX WK AV	<= 45 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX MO AV	<= 31 lb/d	all year
001	BOD, 5-day, 20 deg. C	MX WK AV	<= 47 lb/d	all year
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 8.5 SU	all year
001	Solids, total suspended	MX MO AV	<= 30 mg/L	all year
001	Solids, total suspended	MX WK AV	<= 45 mg/L	all year
001	Solids, total suspended	MX MO AV	<= 31 lb/d	all year
001	Solids, total suspended	MO TOTAL	report only	all year
001	Solids, total suspended	MX WK AV	<= 47 lb/d	all year
001	Solids, total suspended	ANNL MAX	<= 12000 lb/yr	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	Chlorine, total residual	MAXIMUM	<= .1 mg/L	all year
001	E. coli	MO GEOMN	<= 126 MPN/100mL	all year
001	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
001	Flow, total	MO TOTAL	report only	all year