Martin Marietta Materials Inc

NPDES permit OH0002658 · Minor NON-POTW · effective, expires 2027-10-31 · 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 50 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 20 days after each monitoring period ends (the most common figure among OH permits in EPA's filings — check your permit).

Limits in force (51)

OutfallParameterStatisticLimitMonths
003pHDAILY MN >= 6.5 SU all year
003pHDAILY MX <= 9 SU all year
003Solids, total suspendedMO AVG <= 30 mg/L all year
003Solids, total suspendedDAILY MX <= 45 mg/L all year
003Solids, total suspendedMO AVG <= 114 kg/d all year
003Solids, total suspendedDAILY MX <= 171 kg/d all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
005pHDAILY MN >= 6.5 SU all year
005pHDAILY MX <= 9 SU all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 45 mg/L all year
005Solids, total suspendedMO AVG <= 284 kg/d all year
005Solids, total suspendedDAILY MX <= 426 kg/d all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Chlorine, total residualDAILY MX <= .019 mg/L all year
586Biosolids weight indluding admixturesMO AVG report only Dec
586Biosolids weight indluding admixturesDAILY MX report only Dec
588Sludge waste from secondary clarifiersMO AVG report only Dec
588Sludge waste from secondary clarifiersDAILY MX report only Dec
603Flow rateMO AVG report only all year
603Flow rateDAILY MX report only all year
603Solids, total suspendedMO AVG <= 30 mg/L Mar, Jun, Aug, Dec
603Solids, total suspendedDAILY MX <= 45 mg/L Mar, Jun, Aug, Dec
603Solids, total suspendedMO AVG <= .318 kg/d Mar, Jun, Aug, Dec
603Solids, total suspendedDAILY MX <= .477 kg/d Mar, Jun, Aug, Dec
603Turbidity [severity]MO AVG report only all year
603Turbidity [severity]DAILY MX report only all year
603E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL Jun, Aug
603E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL Jun, Aug
603Chlorine, total residualDAILY MX report only Jun, Aug
603BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Mar, Jun, Aug, Dec
603BOD, carbonaceous [5 day, 20 C]DAILY MX <= 25 mg/L Mar, Jun, Aug, Dec
603BOD, carbonaceous [5 day, 20 C]MO AVG <= .159 kg/d Mar, Jun, Aug, Dec
603BOD, carbonaceous [5 day, 20 C]DAILY MX <= .265 kg/d Mar, Jun, Aug, Dec
604Flow rateMO AVG report only all year
604Flow rateDAILY MX report only all year
604Solids, total suspendedMO AVG <= 30 mg/L Mar, Jun, Aug, Dec
604Solids, total suspendedDAILY MX <= 45 mg/L Mar, Jun, Aug, Dec
604Solids, total suspendedMO AVG <= .125 kg/d Mar, Jun, Aug, Dec
604Solids, total suspendedDAILY MX <= .188 kg/d Mar, Jun, Aug, Dec
604Turbidity [severity]MO AVG report only all year
604Turbidity [severity]DAILY MX report only all year
604E. coli, MTEC-MFMO GEOMN <= 126 MPN/100mL Jun, Aug
604E. coli, MTEC-MFWK GEOMN <= 284 MPN/100mL Jun, Aug
604Chlorine, total residualDAILY MX report only Jun, Aug
604BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Mar, Jun, Aug, Dec
604BOD, carbonaceous [5 day, 20 C]DAILY MX <= 25 mg/L Mar, Jun, Aug, Dec
604BOD, carbonaceous [5 day, 20 C]MO AVG <= .0625 kg/d Mar, Jun, Aug, Dec
604BOD, carbonaceous [5 day, 20 C]DAILY MX <= .105 kg/d Mar, Jun, Aug, Dec

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