THE BLACK DIAMOND COMPANY

NPDES permit VAM080398 · Minor NON-POTW · effective, expires 2028-12-20 · 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 40 forms filed late

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

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (52)

OutfallParameterStatisticLimitMonths
4817pHINST MIN >= 6 SU all year
4817pHINST MAX <= 9 SU all year
4817Solids, total suspendedDAILY MN report only all year
4817Solids, total suspendedMO AVG <= 35 mg/L all year
4817Solids, total suspendedDAILY MX <= 70 mg/L all year
4817Iron, total [as Fe]DAILY MN report only all year
4817Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4817Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4817Manganese, total [as Mn]DAILY MN report only all year
4817Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4817Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4817Flow, in conduit or thru treatment plantMO AVG report only all year
4817Flow, in conduit or thru treatment plantDAILY MX report only all year
4818pHINST MIN >= 6 SU all year
4818pHINST MAX <= 9 SU all year
4818Solids, total suspendedDAILY MN report only all year
4818Solids, total suspendedMO AVG <= 35 mg/L all year
4818Solids, total suspendedDAILY MX <= 70 mg/L all year
4818Iron, total [as Fe]DAILY MN report only all year
4818Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4818Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4818Manganese, total [as Mn]DAILY MN report only all year
4818Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4818Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4818Flow, in conduit or thru treatment plantMO AVG report only all year
4818Flow, in conduit or thru treatment plantDAILY MX report only all year
4819pHINST MIN >= 6 SU all year
4819pHINST MAX <= 9 SU all year
4819Solids, total suspendedDAILY MN report only all year
4819Solids, total suspendedMO AVG <= 35 mg/L all year
4819Solids, total suspendedDAILY MX <= 70 mg/L all year
4819Iron, total [as Fe]DAILY MN report only all year
4819Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4819Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4819Manganese, total [as Mn]DAILY MN report only all year
4819Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4819Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4819Flow, in conduit or thru treatment plantMO AVG report only all year
4819Flow, in conduit or thru treatment plantDAILY MX report only all year
4821pHINST MIN >= 6 SU all year
4821pHINST MAX <= 9 SU all year
4821Solids, total suspendedDAILY MN report only all year
4821Solids, total suspendedMO AVG <= 35 mg/L all year
4821Solids, total suspendedDAILY MX <= 70 mg/L all year
4821Iron, total [as Fe]DAILY MN report only all year
4821Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4821Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4821Manganese, total [as Mn]DAILY MN report only all year
4821Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4821Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4821Flow, in conduit or thru treatment plantMO AVG report only all year
4821Flow, in conduit or thru treatment plantDAILY 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