HOLLINGSWORTH & VOSE COMPANY — NPDES permit MA0044996: limits, due date and EPA's record

NPDES permit MA0044996 · Minor NON-POTW · expired, expires 2026-01-31 · EPA's file as of 2026-09-19

This permit expired on 2026-01-31 and is expired: 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 (the most common figure among MA permits in EPA's filings — check your permit).

Limits in force (11)

Outfall	Parameter	Statistic	Limit	Months
002	Oxygen, dissolved [DO]	DAILY MN	>= 5 mg/L	all year
002	pH	MINIMUM	>= 6.5 SU	all year
002	pH	MAXIMUM	<= 8.3 SU	all year
002	Solids, total suspended	MO AVG	report only	all year
002	Solids, total suspended	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Aluminum, total [as Al]	MO AVG	report only	all year
002	Aluminum, total [as Al]	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year