BROX INDUSTRIES — NPDES permit MA0040177: limits, due date and EPA's record

NPDES permit MA0040177 · Minor NON-POTW · administratively continued, expires 2024-06-30 · EPA's file as of 2026-09-19

This permit expired on 2024-06-30 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

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 (37)

Outfall	Parameter	Statistic	Limit	Months
003	Temperature, water deg. centigrade	DAILY MX	report only	Jul, Aug, Sep
003	Turbidity	DAILY MX	<= 25 NTU	all year
003	pH	MINIMUM	>= 6.5 SU	all year
003	pH	MAXIMUM	<= 8.3 SU	all year
003	pH	DAILY MX	report only	Jul, Aug, Sep
003	Solids, total suspended	MO AVG	<= 20 mg/L	all year
003	Solids, total suspended	DAILY MX	<= 40 mg/L	all year
003	Oil & Grease	MO AVG	<= 10 mg/L	all year
003	Oil & Grease	DAILY MX	<= 15 mg/L	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	report only	Jul, Aug, Sep
003	Nitrogen, ammonia total [as N]	DAILY MX	report only	Jul, Aug, Sep
003	Hardness, total [as CaCO3]	DAILY MX	report only	Jul, Aug, Sep
003	Hardness, total [as CaCO3]	DAILY MX	report only	Jul, Aug, Sep
003	Cadmium, total [as Cd]	DAILY MX	report only	Jul, Aug, Sep
003	Cadmium, total [as Cd]	DAILY MX	report only	Jul, Aug, Sep
003	Copper, total [as Cu]	DAILY MX	report only	Jul, Aug, Sep
003	Copper, total [as Cu]	DAILY MX	report only	Jul, Aug, Sep
003	Lead, total [as Pb]	DAILY MX	report only	Jul, Aug, Sep
003	Lead, total [as Pb]	DAILY MX	report only	Jul, Aug, Sep
003	Nickel, total [as Ni]	DAILY MN	report only	Jul, Aug, Sep
003	Nickel, total [as Ni]	DAILY MX	report only	Jul, Aug, Sep
003	Zinc, total [as Zn]	DAILY MX	report only	Jul, Aug, Sep
003	Zinc, total [as Zn]	DAILY MX	report only	Jul, Aug, Sep
003	Aluminum, total [as Al]	DAILY MX	report only	Jul, Aug, Sep
003	Aluminum, total [as Al]	DAILY MX	report only	Jul, Aug, Sep
003	Flow, in conduit or thru treatment plant	DAILY MX	<= 1100 gal/min	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	WKLY AVG	report only	all year
003	Flow, in conduit or thru treatment plant	MO TOTAL	report only	all year
003	E. coli	DAILY MX	report only	all year
003	Nitrogen, Total	DAILY MX	report only	all year
003	Phosphorus, Total	DAILY MX	report only	all year
003	Perchlorate [ClO4]	DAILY MX	report only	all year
003	LC50 Static 48Hr Acute Ceriodaphnia dubia	DAILY MN	report only	Jul, Aug, Sep
003	LC50 Static 48Hr Acute Pimephales promelas	DAILY MN	report only	Jul, Aug, Sep
003	NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia	DAILY MN	report only	Jul, Aug, Sep
003	Noel Statre 7Day Chronic Pimephales	DAILY MN	report only	Jul, Aug, Sep