Middlefield Warehouse

NPDES permit OH0052370 · Minor NON-POTW · effective, expires 2030-12-31 · 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)
0of 24 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 (20)

OutfallParameterStatisticLimitMonths
004Flow rateMO AVG report only all year
004Flow rateDAILY MX report only all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004TetrachloroethyleneDAILY MX <= 5 ug/L all year
004TetrachloroethyleneDAILY MX <= .00109 kg/d all year
0041,1-DichloroethaneDAILY MX <= 5 ug/L all year
0041,1-DichloroethaneDAILY MX <= .00109 kg/d all year
0041,2-DichloroetheneDAILY MX <= 5 ug/L all year
0041,2-DichloroetheneDAILY MX <= .00109 kg/d all year
004TrichloroethyleneDAILY MX <= 5 ug/L all year
004TrichloroethyleneDAILY MX <= .00109 kg/d all year
904TetrachloroethyleneMO AVG report only all year
904TetrachloroethyleneDAILY MX report only all year
9041,1-DichloroethaneMO AVG report only all year
9041,1-DichloroethaneDAILY MX report only all year
9041,2-DichloroetheneMO AVG report only all year
9041,2-DichloroetheneDAILY MX report only all year
904TrichloroethyleneMO AVG report only all year
904TrichloroethyleneDAILY 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