Johns Manville, Inc.

NPDES permit TN0042064 · Minor NON-POTW · effective, expires 2027-05-31 · 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)
2of 12 forms filed late

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

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (18)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 24.9 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 37.3 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 40 mg/L all year
001Solids, total suspendedDAILY MX <= 33.2 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 1.4 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001Cyanide, total [as CN]DAILY MX <= .006 mg/L all year
001Copper, total [as Cu]DAILY MX <= .013 mg/L all year
001Zinc, total [as Zn]DAILY MX <= .2 mg/L 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
001IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubiaMINIMUM > 80 % all year
001IC25 Static Renewal 7 Day Chronic ChrpimephalesMINIMUM > 80 % 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