HOWARD COUNTY DPW

NPDES permit MD0068039 · Minor NON-POTW · effective, expires 2027-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
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

0values over a limit
0required values missing, on 0 form(s)
2of 8 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (102)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6.5 SU all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001pHMAXIMUM <= 8.5 SU all year
001Carbon tetrachlorideMAXIMUM <= 5 ug/L all year
001Carbon tetrachlorideMAXIMUM <= 5 ug/L all year
0011,2-DichloroethaneMAXIMUM <= 5 ug/L all year
0011,2-DichloroethaneMAXIMUM <= 5 ug/L all year
001BromoformMAXIMUM <= 80 ug/L all year
001BromoformMAXIMUM <= 80 ug/L all year
001DibromochloromethaneMAXIMUM <= 80 ug/L all year
001DibromochloromethaneMAXIMUM <= 80 ug/L all year
001ChloroformMAXIMUM <= 80 ug/L all year
001ChloroformMAXIMUM <= 80 ug/L all year
001TolueneMAXIMUM <= 1000 ug/L all year
001TolueneMAXIMUM <= 1000 ug/L all year
001BenzeneMAXIMUM <= 5 ug/L all year
001BenzeneMAXIMUM <= 5 ug/L all year
001ChlorobenzeneMAXIMUM <= 100 ug/L all year
001ChlorobenzeneMAXIMUM <= 100 ug/L all year
001EthylbenzeneMAXIMUM <= 700 ug/L all year
001EthylbenzeneMAXIMUM <= 700 ug/L all year
0011,1,1-TrichloroethaneMAXIMUM <= 200 ug/L all year
0011,1,1-TrichloroethaneMAXIMUM <= 200 ug/L all year
0011,1,2-TrichloroethaneMAXIMUM <= 5 ug/L all year
0011,1,2-TrichloroethaneMAXIMUM <= 5 ug/L all year
0011,2-DichlorobenzeneMAXIMUM <= 600 ug/L all year
0011,2-DichlorobenzeneMAXIMUM <= 600 ug/L all year
0011,2-DichloropropaneMAXIMUM <= 5 ug/L all year
0011,2-DichloropropaneMAXIMUM <= 5 ug/L all year
001trans-1,2-DichloroethyleneMAXIMUM <= 100 ug/L all year
001trans-1,2-DichloroethyleneMAXIMUM <= 100 ug/L all year
0011,4-DichlorobenzeneMAXIMUM <= 75 ug/L all year
0011,4-DichlorobenzeneMAXIMUM <= 75 ug/L all year
001Vinyl chlorideMAXIMUM <= 2 ug/L all year
001Vinyl chlorideMAXIMUM <= 2 ug/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001BromodichloromethaneMAXIMUM <= 80 ug/L all year
001BromodichloromethaneMAXIMUM <= 80 ug/L all year
001Volatile Organic Compound [VOC]MAXIMUM <= 100 ug/L all year
001Volatile Organic Compound [VOC]MAXIMUM <= 100 ug/L all year
0011,1-DichloroetheneMAXIMUM <= 7 ug/L all year
0011,1-DichloroetheneMAXIMUM <= 7 ug/L all year
001TetrachloroetheneMAXIMUM <= 5 ug/L all year
001TetrachloroetheneMAXIMUM <= 5 ug/L all year
001TrichloroetheneMAXIMUM <= 0 ug/L all year
001TrichloroetheneMAXIMUM <= 0 ug/L all year
002pHMINIMUM >= 6.5 SU all year
002pHMINIMUM >= 6.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002pHMAXIMUM <= 8.5 SU all year
002DichloromethaneMAXIMUM <= 100 ug/L all year
002DichloromethaneMAXIMUM <= 100 ug/L all year
002Carbon tetrachlorideMAXIMUM <= 5 ug/L all year
002Carbon tetrachlorideMAXIMUM <= 5 ug/L all year
0021,2-DichloroethaneMAXIMUM <= 5 ug/L all year
0021,2-DichloroethaneMAXIMUM <= 5 ug/L all year
002BromoformMAXIMUM <= 80 ug/L all year
002BromoformMAXIMUM <= 80 ug/L all year
002DibromochloromethaneMAXIMUM <= 80 ug/L all year
002DibromochloromethaneMAXIMUM <= 80 ug/L all year
002ChloroformMAXIMUM <= 80 ug/L all year
002ChloroformMAXIMUM <= 80 ug/L all year
002TolueneMAXIMUM <= 1000 ug/L all year
002TolueneMAXIMUM <= 1000 ug/L all year
002BenzeneMAXIMUM <= 5 ug/L all year
002BenzeneMAXIMUM <= 5 ug/L all year
002ChlorobenzeneMAXIMUM <= 100 ug/L all year
002ChlorobenzeneMAXIMUM <= 100 ug/L all year
002EthylbenzeneMAXIMUM <= 700 ug/L all year
002EthylbenzeneMAXIMUM <= 700 ug/L all year
0021,1,1-TrichloroethaneMAXIMUM <= 200 ug/L all year
0021,1,1-TrichloroethaneMAXIMUM <= 200 ug/L all year
0021,1,2-TrichloroethaneMAXIMUM <= 5 ug/L all year
0021,1,2-TrichloroethaneMAXIMUM <= 5 ug/L all year
0021,2-DichlorobenzeneMAXIMUM <= 600 ug/L all year
0021,2-DichlorobenzeneMAXIMUM <= 600 ug/L all year
0021,2-DichloropropaneMAXIMUM <= 5 ug/L all year
0021,2-DichloropropaneMAXIMUM <= 5 ug/L all year
002trans-1,2-DichloroethyleneMAXIMUM <= 100 ug/L all year
002trans-1,2-DichloroethyleneMAXIMUM <= 100 ug/L all year
0021,4-DichlorobenzeneMAXIMUM <= 75 ug/L all year
0021,4-DichlorobenzeneMAXIMUM <= 75 ug/L all year
002Vinyl chlorideMAXIMUM <= 2 ug/L all year
002Vinyl chlorideMAXIMUM <= 2 ug/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
002BromodichloromethaneMAXIMUM <= 80 ug/L all year
002BromodichloromethaneMAXIMUM <= 80 ug/L all year
002Volatile Organic Compound [VOC]MAXIMUM <= 100 ug/L all year
002Volatile Organic Compound [VOC]MAXIMUM <= 100 ug/L all year
0021,1-DichloroetheneMAXIMUM <= 7 ug/L all year
0021,1-DichloroetheneMAXIMUM <= 7 ug/L all year
002TetrachloroetheneMAXIMUM <= 5 ug/L all year
002TetrachloroetheneMAXIMUM <= 5 ug/L all year
002TrichloroetheneMAXIMUM <= 5 ug/L all year
002TrichloroetheneMAXIMUM <= 5 ug/L all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states