SPRAGUE OPERATING RESOURCES LLC — NPDES permit MA0020869: limits, due date and EPA's record

NPDES permit MA0020869 · Minor NON-POTW · effective, expires 2028-11-30 · 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: Solids, total suspended (6).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (62)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	MAXIMUM	report only	all year
002	Flow rate	DAILY MX	<= 600 gal/min	all year
002	pH	MINIMUM	>= 6.5 SU	all year
002	pH	MAXIMUM	<= 8.5 SU	all year
002	pH	MAXIMUM	report only	all year
002	pH	MAXIMUM	report only	all year
002	Salinity	DAILY MX	report only	all year
002	Salinity	DAILY MX	report only	all year
002	Solids, total	DAILY MX	report only	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	DAILY MX	<= 100 mg/L	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Oil & Grease	DAILY MX	<= 15 mg/L	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Carbon, tot organic [TOC]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Toluene	DAILY MX	report only	Sep
002	Benzene	DAILY MX	<= 5 ug/L	all year
002	Acenaphthylene	DAILY MX	report only	Sep
002	Acenaphthene	DAILY MX	report only	Sep
002	Anthracene	DAILY MX	report only	Sep
002	Benzo[b]fluoranthene	DAILY MX	report only	all year
002	Benzo[k]fluoranthene	DAILY MX	report only	all year
002	Benzo[a]pyrene	MO AVG	<= .00013 ug/L	all year
002	Chrysene	DAILY MX	report only	all year
002	Ethylbenzene	DAILY MX	report only	Sep
002	Fluoranthene	DAILY MX	report only	Sep
002	Fluorene	DAILY MX	report only	Sep
002	Indeno[1,2,3-cd]pyrene	DAILY MX	report only	all year
002	Phenanthrene	DAILY MX	report only	Sep
002	Pyrene	DAILY MX	report only	Sep
002	Benzo[ghi]perylene	DAILY MX	report only	Sep
002	Benzo[a]anthracene	DAILY MX	report only	all year
002	Dibenz[a,h]anthracene	DAILY MX	report only	all year
002	Phenol	DAILY MX	report only	all year
002	Naphthalene	DAILY MX	report only	Sep
002	Chlorine, total residual	DAILY MX	report only	all year
002	Number of Events	MO TOTAL	report only	all year
002	Enterococci	MO AVG	report only	all year
002	Enterococci	DAILY MX	report only	all year
002	Coliform, fecal general	MO AVG	report only	all year
002	Coliform, fecal general	DAILY MX	report only	all year
002	Xylene [mix of m+o+p]	DAILY MX	report only	Sep
002	Flow, total	MO TOTAL	report only	all year
002	LC50 Static 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia)	DAILY MX	report only	all year
002	LC50 Static 48Hr Acute Menidia	DAILY MX	report only	all year
PFAS	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
PFAS	Perfluoroheptanoic acid (PFHpA)	DAILY MX	report only	all year
PFAS	Perfluorononanoic acid (PFNA)	DAILY MX	report only	all year
PFAS	Perfluorodecanoic acid (PFDA)	DAILY MX	report only	all year
PFAS	Perfluorohexanesulfonic acid (PFHxS)	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonic acid (PFOS)	DAILY MX	report only	all year