ASH WEST SPRINGFIELD PROP LLC — NPDES permit PA0220779: limits, due date and EPA's record

NPDES permit PA0220779 · Minor NON-POTW · effective, expires 2029-08-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-06-30. Most often over: Coliform, fecal general (7), Phosphorus, total [as P] (4), Nitrogen, ammonia total [as N] (4).

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 (15)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	DAILY MN	>= 6 mg/L	all year
001	pH	DAILY MN	>= 6 SU	all year
001	pH	DAILY MX	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Nitrogen, total [as N]	MO AVG	report only	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1.5 mg/L	May, Jun, Jul, Aug, Sep, Oct
001	Nitrogen, ammonia total [as N]	MO AVG	<= 4.5 mg/L	Jan, Feb, Mar, Apr, Nov, Dec
001	Phosphorus, total [as P]	MO AVG	<= 1 mg/L	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	E. coli	INST MAX	report only	all year
001	Coliform, fecal general	GEO MEAN	<= 2000 #/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec
001	Coliform, fecal general	GEO MEAN	<= 200 #/100mL	May, Jun, Jul, Aug, Sep
001	Coliform, fecal general	INST MAX	<= 10000 #/100mL	Jan, Feb, Mar, Apr, Oct, Nov, Dec
001	Coliform, fecal general	INST MAX	<= 1000 #/100mL	May, Jun, Jul, Aug, Sep
001	BOD, carbonaceous [5 day, 20 C]	MO AVG	<= 25 mg/L	all year