HOWARD COUNTY DPW

NPDES permit MD0067865 · Minor NON-POTW · effective, expires 2027-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

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

0values over a limit
0required values missing, on 0 form(s)
1of 4 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 (50)

OutfallParameterStatisticLimitMonths
001DichloromethaneDAILY MX <= 5 ug/L all year
001DichloromethaneDAILY MX <= 5 ug/L all year
001Carbon tetrachlorideDAILY MX <= 5 ug/L all year
001Carbon tetrachlorideDAILY MX <= 5 ug/L all year
0011,2-DichloroethaneDAILY MX report only all year
0011,2-DichloroethaneDAILY MX report only all year
001BromoformDAILY MX <= 80 ug/L all year
001BromoformDAILY MX <= 80 ug/L all year
001DibromochloromethaneDAILY MX <= 80 ug/L all year
001DibromochloromethaneDAILY MX <= 80 ug/L all year
001ChloroformDAILY MX <= 80 ug/L all year
001ChloroformDAILY MX <= 80 ug/L all year
001TolueneDAILY MX <= 1000 ug/L all year
001TolueneDAILY MX <= 1000 ug/L all year
001BenzeneDAILY MX <= 5 ug/L all year
001BenzeneDAILY MX <= 5 ug/L all year
001ChlorobenzeneDAILY MX <= 100 ug/L all year
001ChlorobenzeneDAILY MX <= 100 ug/L all year
001EthylbenzeneDAILY MX <= 700 ug/L all year
001EthylbenzeneDAILY MX <= 700 ug/L all year
001Methylene chlorideDAILY MX <= 20 ug/L all year
001Methylene chlorideDAILY MX <= 20 ug/L all year
0011,1,1-TrichloroethaneDAILY MX <= 200 ug/L all year
0011,1,1-TrichloroethaneDAILY MX <= 200 ug/L all year
0011,1,2-TrichloroethaneDAILY MX <= 5 ug/L all year
0011,1,2-TrichloroethaneDAILY MX <= 5 ug/L all year
0011,2-DichlorobenzeneDAILY MX <= 600 ug/L all year
0011,2-DichlorobenzeneDAILY MX <= 600 ug/L all year
0011,2-DichloropropaneDAILY MX <= 5 ug/L all year
0011,2-DichloropropaneDAILY MX <= 5 ug/L all year
001trans-1,2-DichloroethyleneDAILY MX <= 100 ug/L all year
001trans-1,2-DichloroethyleneDAILY MX <= 100 ug/L all year
0011,4-DichlorobenzeneDAILY MX <= 75 ug/L all year
0011,4-DichlorobenzeneDAILY MX <= 75 ug/L all year
001Vinyl chlorideDAILY MX <= 2 ug/L all year
001Vinyl chlorideDAILY MX <= 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
001Volatile Organic Compound [VOC]DAILY MX <= 100 ug/L all year
001Volatile Organic Compound [VOC]DAILY MX <= 100 ug/L all year
0011,1-DichloroetheneDAILY MX <= 7 ug/L all year
0011,1-DichloroetheneDAILY MX <= 7 ug/L all year
001TetrachloroetheneDAILY MX <= 5 ug/L all year
001TetrachloroetheneDAILY MX <= 5 ug/L all year
001TrichloroetheneDAILY MX <= 5 ug/L all year
001TrichloroetheneDAILY MX <= 5 ug/L all year
001Tetrachloroethane, totalDAILY MX report only all year
001Tetrachloroethane, totalDAILY MX report only 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