BUILDING MATERIALS CORPORATION OF AMERICA — NPDES permit MD0001988: limits, due date and EPA's record

NPDES permit MD0001988 · Minor NON-POTW · effective, expires 2028-09-30 · EPA's file as of 2026-09-19

Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

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

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 (23)

Outfall	Parameter	Statistic	Limit	Months
001	Oxygen, dissolved [DO]	MINIMUM	report only	all year
001	pH	MINIMUM	>= 6 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Oil & Grease	MX MO AV	<= 15 mg/L	all year
001	Oil & Grease	DAILY MX	<= 20 mg/L	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	MO AVG	<= .1 mg/L	all year
001	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year
002	Oxygen, dissolved [DO]	MINIMUM	report only	all year
002	pH	MINIMUM	>= 6 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	MX MO AV	<= 30 mg/L	all year
002	Solids, total suspended	MX DA AV	<= 60 mg/L	all year
002	Solids, total suspended	MX MO AV	<= 65 lb/d	all year
002	Solids, total suspended	MX DA AV	<= 96 lb/d	all year
002	Oil & Grease	MX MO AV	<= 15 mg/L	all year
002	Oil & Grease	MX DA AV	<= 20 mg/L	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
002	Chlorine, total residual	MO AVG	<= .1 mg/L	all year
002	Chlorine, total residual	DAILY MX	<= .1 mg/L	all year
002	Temperature Increase Deg. F	DAILY MX	report only	all year