THE BLACK DIAMOND COMPANY

NPDES permit VAM082045 · Minor NON-POTW · effective, expires 2030-03-04 · 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 20 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 (29)

OutfallParameterStatisticLimitMonths
7365pHINST MIN >= 6 SU all year
7365pHINST MAX <= 9 SU all year
7365Solids, total suspendedDAILY MN report only all year
7365Solids, total suspendedMO AVG <= 35 mg/L all year
7365Solids, total suspendedDAILY MX <= 70 mg/L all year
7365Iron, total [as Fe]DAILY MN report only all year
7365Iron, total [as Fe]MO AVG <= 3 mg/L all year
7365Iron, total [as Fe]DAILY MX <= 6 mg/L all year
7365Manganese, total [as Mn]DAILY MN report only all year
7365Manganese, total [as Mn]MO AVG <= 2 mg/L all year
7365Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
7365Flow, in conduit or thru treatment plantMO AVG report only all year
7365Flow, in conduit or thru treatment plantDAILY MX report only all year
7366pHINST MIN >= 6 SU all year
7366pHINST MAX <= 9 SU all year
7366Solids, total suspendedDAILY MN report only all year
7366Solids, total suspendedMO AVG <= 35 mg/L all year
7366Solids, total suspendedDAILY MX <= 70 mg/L all year
7366Solids, settleableDAILY MN report only all year
7366Solids, settleableMO AVG report only all year
7366Solids, settleableDAILY MX report only all year
7366Iron, total [as Fe]DAILY MN report only all year
7366Iron, total [as Fe]MO AVG <= 3 mg/L all year
7366Iron, total [as Fe]DAILY MX <= 6 mg/L all year
7366Manganese, total [as Mn]DAILY MN report only all year
7366Manganese, total [as Mn]MO AVG <= 2 mg/L all year
7366Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
7366Flow, in conduit or thru treatment plantMO AVG report only all year
7366Flow, 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