Maryland State Highway Administation

NPDES permit MD0069680 · Minor NON-POTW · effective, expires 2030-12-31 · 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)
0of 8 forms filed late

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

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 (26)

OutfallParameterStatisticLimitMonths
001DichloromethaneMAXIMUM <= 5 ug/L all year
001Carbon tetrachlorideMAXIMUM <= 5 ug/L all year
0011,2-DichloroethaneMAXIMUM <= 5 ug/L all year
001BromoformMAXIMUM <= 80 ug/L all year
001DibromochloromethaneMAXIMUM <= 80 ug/L all year
001ChloroformMAXIMUM <= 80 ug/L all year
001TolueneMAXIMUM <= 100 ug/L all year
001BenzeneMAXIMUM <= 5 ug/L all year
001ChlorobenzeneMAXIMUM <= 100 ug/L all year
001EthylbenzeneMAXIMUM <= 100 ug/L all year
0011,1,1-TrichloroethaneMAXIMUM <= 100 ug/L all year
0011,1,2-TrichloroethaneMAXIMUM <= 5 ug/L all year
0011,2-DichlorobenzeneMAXIMUM <= 100 ug/L all year
0011,2-DichloropropaneMAXIMUM <= 5 ug/L all year
0011,4-DichlorobenzeneMAXIMUM <= 75 ug/L all year
001Vinyl chlorideMAXIMUM <= 2 ug/L all year
001Flow, in conduit or thru treatment plantQRTR AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001BromodichloromethaneMAXIMUM <= 80 ug/L all year
001Volatile Organic Compound [VOC]TOTAL <= 100 ug/L all year
0011,1-DichloroetheneMAXIMUM <= 7 ug/L all year
001trans-1,2-DichloroetheneMAXIMUM <= 100 ug/L all year
001TetrachloroetheneMAXIMUM <= 5 ug/L all year
001TrichloroetheneMAXIMUM <= 5 ug/L all year
001cis-1,2-DichloroetheneMAXIMUM <= 70 ug/L all year
001Hydrocarbons, total petroleumDAILY MX <= 15 mg/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