THE BLACK DIAMOND COMPANY

NPDES permit VAM082118 · Minor NON-POTW · effective, expires 2029-04-28 · 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
161required values missing, on 11 form(s)
0of 30 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 (54)

OutfallParameterStatisticLimitMonths
1550pHINST MIN >= 6 SU all year
1550pHINST MAX <= 9 SU all year
1550Solids, total suspendedDAILY MN report only all year
1550Solids, total suspendedMO AVG <= 35 mg/L all year
1550Solids, total suspendedDAILY MX <= 70 mg/L all year
1550Solids, settleableDAILY MN report only all year
1550Solids, settleableMO AVG report only all year
1550Solids, settleableDAILY MX report only all year
1550Iron, total [as Fe]DAILY MN report only all year
1550Iron, total [as Fe]MO AVG <= 3 mg/L all year
1550Iron, total [as Fe]DAILY MX <= 6 mg/L all year
1550Manganese, total [as Mn]DAILY MN report only all year
1550Manganese, total [as Mn]MO AVG <= 2 mg/L all year
1550Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
1550Flow, in conduit or thru treatment plantMO AVG report only all year
1550Flow, in conduit or thru treatment plantDAILY MX report only all year
1550Solids, total dissolved [TDS]DAILY MN report only all year
1550Solids, total dissolved [TDS]MO AVG report only all year
1550Solids, total dissolved [TDS]DAILY MX report only all year
1551pHINST MIN >= 6 SU all year
1551pHINST MAX <= 9 SU all year
1551Solids, total suspendedDAILY MN report only all year
1551Solids, total suspendedMO AVG <= 35 mg/L all year
1551Solids, total suspendedDAILY MX <= 70 mg/L all year
1551Solids, settleableDAILY MN report only all year
1551Solids, settleableMO AVG report only all year
1551Solids, settleableDAILY MX report only all year
1551Iron, total [as Fe]DAILY MN report only all year
1551Iron, total [as Fe]MO AVG <= 3 mg/L all year
1551Iron, total [as Fe]DAILY MX <= 6 mg/L all year
1551Manganese, total [as Mn]DAILY MN report only all year
1551Manganese, total [as Mn]MO AVG <= 2 mg/L all year
1551Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
1551Flow, in conduit or thru treatment plantMO AVG report only all year
1551Flow, in conduit or thru treatment plantDAILY MX report only all year
1551Solids, total dissolved [TDS]DAILY MN report only all year
1551Solids, total dissolved [TDS]MO AVG report only all year
1551Solids, total dissolved [TDS]DAILY MX report only all year
8433pHINST MIN >= 6 SU all year
8433pHINST MAX <= 9 SU all year
8433Solids, total suspendedDAILY MN report only all year
8433Solids, total suspendedMO AVG <= 35 mg/L all year
8433Solids, total suspendedDAILY MX <= 70 mg/L all year
8433Iron, total [as Fe]DAILY MN report only all year
8433Iron, total [as Fe]MO AVG <= 3 mg/L all year
8433Iron, total [as Fe]DAILY MX <= 6 mg/L all year
8433Manganese, total [as Mn]DAILY MN report only all year
8433Manganese, total [as Mn]MO AVG <= 2 mg/L all year
8433Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
8433Flow, in conduit or thru treatment plantMO AVG report only all year
8433Flow, in conduit or thru treatment plantDAILY MX report only all year
8433Solids, total dissolved [TDS]DAILY MN report only all year
8433Solids, total dissolved [TDS]MO AVG report only all year
8433Solids, total dissolved [TDS]DAILY 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