THE BLACK DIAMOND COMPANY

NPDES permit VAM080453 · Minor NON-POTW · effective, expires 2028-12-27 · 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
12required values missing, on 4 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 (64)

OutfallParameterStatisticLimitMonths
3361pHINST MIN >= 6 SU all year
3361pHINST MAX <= 9 SU all year
3361Solids, total suspendedDAILY MN report only all year
3361Solids, total suspendedMO AVG <= 35 mg/L all year
3361Solids, total suspendedDAILY MX <= 70 mg/L all year
3361Iron, total [as Fe]DAILY MN report only all year
3361Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
3361Iron, total [as Fe]DAILY MX <= 7 mg/L all year
3361Flow, in conduit or thru treatment plantMO AVG report only all year
3361Flow, in conduit or thru treatment plantDAILY MX report only all year
3361Solids, total dissolved [TDS]DAILY MN report only all year
3361Solids, total dissolved [TDS]MO AVG report only all year
3361Solids, total dissolved [TDS]DAILY MX report only all year
4943pHINST MIN >= 6 SU all year
4943pHINST MAX <= 9 SU all year
4943Solids, total suspendedDAILY MN report only all year
4943Solids, total suspendedMO AVG <= 35 mg/L all year
4943Solids, total suspendedDAILY MX <= 70 mg/L all year
4943Iron, total [as Fe]DAILY MN report only all year
4943Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4943Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4943Manganese, total [as Mn]DAILY MN report only all year
4943Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4943Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4943Flow, in conduit or thru treatment plantMO AVG report only all year
4943Flow, in conduit or thru treatment plantDAILY MX report only all year
4943Solids, total dissolved [TDS]DAILY MN report only all year
4943Solids, total dissolved [TDS]MO AVG report only all year
4943Solids, total dissolved [TDS]DAILY MX report only all year
4944pHINST MIN >= 6 SU all year
4944pHINST MAX <= 9 SU all year
4944Solids, total suspendedDAILY MN report only all year
4944Solids, total suspendedMO AVG <= 35 mg/L all year
4944Solids, total suspendedDAILY MX <= 70 mg/L all year
4944Solids, settleableDAILY MN report only all year
4944Solids, settleableMO AVG report only all year
4944Solids, settleableDAILY MX report only all year
4944Iron, total [as Fe]DAILY MN report only all year
4944Iron, total [as Fe]MO AVG <= 3.5 mg/L all year
4944Iron, total [as Fe]DAILY MX <= 7 mg/L all year
4944Manganese, total [as Mn]DAILY MN report only all year
4944Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4944Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4944Flow, in conduit or thru treatment plantMO AVG report only all year
4944Flow, in conduit or thru treatment plantDAILY MX report only all year
4944Solids, total dissolved [TDS]DAILY MN report only all year
4944Solids, total dissolved [TDS]MO AVG report only all year
4944Solids, total dissolved [TDS]DAILY MX report only all year
4946pHINST MIN >= 6 SU all year
4946pHINST MAX <= 9 SU all year
4946Solids, total suspendedDAILY MN report only all year
4946Solids, total suspendedMO AVG <= 35 mg/L all year
4946Solids, total suspendedDAILY MX <= 70 mg/L all year
4946Iron, total [as Fe]DAILY MN report only all year
4946Iron, total [as Fe]MO AVG <= 3 mg/L all year
4946Iron, total [as Fe]DAILY MX <= 6 mg/L all year
4946Manganese, total [as Mn]DAILY MN report only all year
4946Manganese, total [as Mn]MO AVG <= 2 mg/L all year
4946Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
4946Flow, in conduit or thru treatment plantMO AVG report only all year
4946Flow, in conduit or thru treatment plantDAILY MX report only all year
4946Solids, total dissolved [TDS]DAILY MN report only all year
4946Solids, total dissolved [TDS]MO AVG report only all year
4946Solids, 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