Building Materials Corporation of America — NPDES permit MD0001988: limits, due date and EPA's record

Asphalt Felts And Coatings, Baltimore, Maryland. NPDES permit MD0001988, in force until Sep 30, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (23)

Parameter	Statistic	Limit	Months	Outfall
Oxygen, dissolved [DO]	minimum	report only (mg/L)	all year	001
pH	minimum	≥ 6 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Oil & Grease	maximum monthly average	≤ 15 mg/L	all year	001
Oil & Grease	daily maximum	≤ 20 mg/L	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (gal/d)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	001
Chlorine, total residual	monthly average	≤ .1 mg/L	all year	001
Chlorine, total residual	daily maximum	≤ .1 mg/L	all year	001
Oxygen, dissolved [DO]	minimum	report only (mg/L)	all year	002
pH	minimum	≥ 6 SU	all year	002
pH	maximum	≤ 9 SU	all year	002
Solids, total suspended	maximum monthly average	≤ 30 mg/L	all year	002
Solids, total suspended	maximum daily average	≤ 60 mg/L	all year	002
Solids, total suspended	maximum monthly average	≤ 65 lb/d	all year	002
Solids, total suspended	maximum daily average	≤ 96 lb/d	all year	002
Oil & Grease	maximum monthly average	≤ 15 mg/L	all year	002
Oil & Grease	maximum daily average	≤ 20 mg/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (gal/d)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	002
Chlorine, total residual	monthly average	≤ .1 mg/L	all year	002
Chlorine, total residual	daily maximum	≤ .1 mg/L	all year	002
Temperature Increase Deg. F	daily maximum	report only (deg F)	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/MD0001988 · MCP: https://passage-data.com/mcp