EnPro Holdings, Inc. - Remedial System/Central Moloney

NPDES permit AR0051110 · Minor NON-POTW · effective, expires 2028-02-29 · 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

1values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31. Most often over: pH (1).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (29)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 2 mg/L all year
001Oxygen demand, chem. [low level] [COD]MO AVG <= 50 mg/L all year
001Oxygen demand, chem. [low level] [COD]DAILY MX <= 75 mg/L all year
001Oxygen demand, chem. [low level] [COD]MO AVG <= 72.1 lb/d all year
001Oxygen demand, chem. [low level] [COD]DAILY MX <= 108.1 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001TetrachloroethyleneMO AVG <= 1 ug/L all year
001TetrachloroethyleneDAILY MX <= 1.5 ug/L all year
001TetrachloroethyleneMO AVG <= .0014 lb/d all year
001TetrachloroethyleneDAILY MX <= .0022 lb/d all year
0011,1-DichloroethyleneMO AVG <= 1 ug/L all year
0011,1-DichloroethyleneDAILY MX <= 1.5 ug/L all year
0011,1-DichloroethyleneMO AVG <= .0014 lb/d all year
0011,1-DichloroethyleneDAILY MX <= .0022 lb/d all year
001Vinyl chlorideMO AVG <= 1 ug/L all year
001Vinyl chlorideDAILY MX <= 1.5 ug/L all year
001Vinyl chlorideMO AVG <= .0014 lb/d all year
001Vinyl chlorideDAILY MX <= .0022 lb/d all year
001TrichloroethyleneMO AVG <= 1 ug/L all year
001TrichloroethyleneDAILY MX <= 1.5 ug/L all year
001TrichloroethyleneMO AVG <= .0014 lb/d all year
001TrichloroethyleneDAILY MX <= .0022 lb/d 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
001trans-1,2-DichloroethyleneMO AVG <= 1 ug/L all year
001trans-1,2-DichloroethyleneDAILY MX <= 1.5 ug/L all year
001trans-1,2-DichloroethyleneMO AVG <= .0014 lb/d all year
001trans-1,2-DichloroethyleneDAILY MX <= .0022 lb/d 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