Howard County DPW — NPDES permit MD0068039: limits, due date and EPA's record

Refuse Systems, Ellicott City, Maryland. NPDES permit MD0068039, in force until Aug 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (102)

Parameter	Statistic	Limit	Months	Outfall
pH	minimum	≥ 6.5 SU	all year	001
pH	minimum	≥ 6.5 SU	all year	001
pH	maximum	≤ 8.5 SU	all year	001
pH	maximum	≤ 8.5 SU	all year	001
Carbon tetrachloride	maximum	≤ 5 ug/L	all year	001
Carbon tetrachloride	maximum	≤ 5 ug/L	all year	001
1,2-Dichloroethane	maximum	≤ 5 ug/L	all year	001
1,2-Dichloroethane	maximum	≤ 5 ug/L	all year	001
Bromoform	maximum	≤ 80 ug/L	all year	001
Bromoform	maximum	≤ 80 ug/L	all year	001
Dibromochloromethane	maximum	≤ 80 ug/L	all year	001
Dibromochloromethane	maximum	≤ 80 ug/L	all year	001
Chloroform	maximum	≤ 80 ug/L	all year	001
Chloroform	maximum	≤ 80 ug/L	all year	001
Toluene	maximum	≤ 1000 ug/L	all year	001
Toluene	maximum	≤ 1000 ug/L	all year	001
Benzene	maximum	≤ 5 ug/L	all year	001
Benzene	maximum	≤ 5 ug/L	all year	001
Chlorobenzene	maximum	≤ 100 ug/L	all year	001
Chlorobenzene	maximum	≤ 100 ug/L	all year	001
Ethylbenzene	maximum	≤ 700 ug/L	all year	001
Ethylbenzene	maximum	≤ 700 ug/L	all year	001
1,1,1-Trichloroethane	maximum	≤ 200 ug/L	all year	001
1,1,1-Trichloroethane	maximum	≤ 200 ug/L	all year	001
1,1,2-Trichloroethane	maximum	≤ 5 ug/L	all year	001
1,1,2-Trichloroethane	maximum	≤ 5 ug/L	all year	001
1,2-Dichlorobenzene	maximum	≤ 600 ug/L	all year	001
1,2-Dichlorobenzene	maximum	≤ 600 ug/L	all year	001
1,2-Dichloropropane	maximum	≤ 5 ug/L	all year	001
1,2-Dichloropropane	maximum	≤ 5 ug/L	all year	001
trans-1,2-Dichloroethylene	maximum	≤ 100 ug/L	all year	001
trans-1,2-Dichloroethylene	maximum	≤ 100 ug/L	all year	001
1,4-Dichlorobenzene	maximum	≤ 75 ug/L	all year	001
1,4-Dichlorobenzene	maximum	≤ 75 ug/L	all year	001
Vinyl chloride	maximum	≤ 2 ug/L	all year	001
Vinyl chloride	maximum	≤ 2 ug/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	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
Flow, in conduit or thru treatment plant	daily maximum	report only (gal/d)	all year	001
Bromodichloromethane	maximum	≤ 80 ug/L	all year	001
Bromodichloromethane	maximum	≤ 80 ug/L	all year	001
Volatile Organic Compound [VOC]	maximum	≤ 100 ug/L	all year	001
Volatile Organic Compound [VOC]	maximum	≤ 100 ug/L	all year	001
1,1-Dichloroethene	maximum	≤ 7 ug/L	all year	001
1,1-Dichloroethene	maximum	≤ 7 ug/L	all year	001
Tetrachloroethene	maximum	≤ 5 ug/L	all year	001
Tetrachloroethene	maximum	≤ 5 ug/L	all year	001
Trichloroethene	maximum	≤ 0 ug/L	all year	001
Trichloroethene	maximum	≤ 0 ug/L	all year	001
pH	minimum	≥ 6.5 SU	all year	002
pH	minimum	≥ 6.5 SU	all year	002
pH	maximum	≤ 8.5 SU	all year	002
pH	maximum	≤ 8.5 SU	all year	002
Dichloromethane	maximum	≤ 100 ug/L	all year	002
Dichloromethane	maximum	≤ 100 ug/L	all year	002
Carbon tetrachloride	maximum	≤ 5 ug/L	all year	002
Carbon tetrachloride	maximum	≤ 5 ug/L	all year	002
1,2-Dichloroethane	maximum	≤ 5 ug/L	all year	002
1,2-Dichloroethane	maximum	≤ 5 ug/L	all year	002
Bromoform	maximum	≤ 80 ug/L	all year	002
Bromoform	maximum	≤ 80 ug/L	all year	002
Dibromochloromethane	maximum	≤ 80 ug/L	all year	002
Dibromochloromethane	maximum	≤ 80 ug/L	all year	002
Chloroform	maximum	≤ 80 ug/L	all year	002
Chloroform	maximum	≤ 80 ug/L	all year	002
Toluene	maximum	≤ 1000 ug/L	all year	002
Toluene	maximum	≤ 1000 ug/L	all year	002
Benzene	maximum	≤ 5 ug/L	all year	002
Benzene	maximum	≤ 5 ug/L	all year	002
Chlorobenzene	maximum	≤ 100 ug/L	all year	002
Chlorobenzene	maximum	≤ 100 ug/L	all year	002
Ethylbenzene	maximum	≤ 700 ug/L	all year	002
Ethylbenzene	maximum	≤ 700 ug/L	all year	002
1,1,1-Trichloroethane	maximum	≤ 200 ug/L	all year	002
1,1,1-Trichloroethane	maximum	≤ 200 ug/L	all year	002
1,1,2-Trichloroethane	maximum	≤ 5 ug/L	all year	002
1,1,2-Trichloroethane	maximum	≤ 5 ug/L	all year	002
1,2-Dichlorobenzene	maximum	≤ 600 ug/L	all year	002
1,2-Dichlorobenzene	maximum	≤ 600 ug/L	all year	002
1,2-Dichloropropane	maximum	≤ 5 ug/L	all year	002
1,2-Dichloropropane	maximum	≤ 5 ug/L	all year	002
trans-1,2-Dichloroethylene	maximum	≤ 100 ug/L	all year	002
trans-1,2-Dichloroethylene	maximum	≤ 100 ug/L	all year	002
1,4-Dichlorobenzene	maximum	≤ 75 ug/L	all year	002
1,4-Dichlorobenzene	maximum	≤ 75 ug/L	all year	002
Vinyl chloride	maximum	≤ 2 ug/L	all year	002
Vinyl chloride	maximum	≤ 2 ug/L	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Bromodichloromethane	maximum	≤ 80 ug/L	all year	002
Bromodichloromethane	maximum	≤ 80 ug/L	all year	002
Volatile Organic Compound [VOC]	maximum	≤ 100 ug/L	all year	002
Volatile Organic Compound [VOC]	maximum	≤ 100 ug/L	all year	002
1,1-Dichloroethene	maximum	≤ 7 ug/L	all year	002
1,1-Dichloroethene	maximum	≤ 7 ug/L	all year	002
Tetrachloroethene	maximum	≤ 5 ug/L	all year	002
Tetrachloroethene	maximum	≤ 5 ug/L	all year	002
Trichloroethene	maximum	≤ 5 ug/L	all year	002
Trichloroethene	maximum	≤ 5 ug/L	all year	002

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/MD0068039 · MCP: https://passage-data.com/mcp