THE BLACK DIAMOND COMPANY

NPDES permit VAM082222 · Minor NON-POTW · effective, expires 2027-04-06 · 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
130required values missing, on 10 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 (45)

OutfallParameterStatisticLimitMonths
0002pHINST MIN >= 6 SU all year
0002pHINST MAX <= 9 SU all year
0002Solids, total suspendedDAILY MN report only all year
0002Solids, total suspendedMO AVG <= 35 mg/L all year
0002Solids, total suspendedDAILY MX <= 70 mg/L all year
0002Solids, settleableDAILY MN report only all year
0002Solids, settleableMO AVG report only all year
0002Solids, settleableDAILY MX report only all year
0002Iron, total [as Fe]DAILY MN report only all year
0002Iron, total [as Fe]MO AVG <= 3 mg/L all year
0002Iron, total [as Fe]DAILY MX <= 6 mg/L all year
0002Manganese, total [as Mn]DAILY MN report only all year
0002Manganese, total [as Mn]MO AVG <= 2 mg/L all year
0002Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
0002Flow, in conduit or thru treatment plantMO AVG report only all year
0002Flow, in conduit or thru treatment plantDAILY MX report only all year
0010pHINST MIN >= 6 SU all year
0010pHINST MAX <= 9 SU all year
0010Solids, total suspendedDAILY MN report only all year
0010Solids, total suspendedMO AVG <= 35 mg/L all year
0010Solids, total suspendedDAILY MX <= 70 mg/L all year
0010Iron, total [as Fe]DAILY MN report only all year
0010Iron, total [as Fe]MO AVG <= 3 mg/L all year
0010Iron, total [as Fe]DAILY MX <= 6 mg/L all year
0010Manganese, total [as Mn]DAILY MN report only all year
0010Manganese, total [as Mn]MO AVG <= 2 mg/L all year
0010Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
0010Flow, in conduit or thru treatment plantMO AVG report only all year
0010Flow, in conduit or thru treatment plantDAILY MX report only all year
5673pHINST MIN >= 6 SU all year
5673pHINST MAX <= 9 SU all year
5673Solids, total suspendedDAILY MN report only all year
5673Solids, total suspendedMO AVG <= 35 mg/L all year
5673Solids, total suspendedDAILY MX <= 70 mg/L all year
5673Solids, settleableDAILY MN report only all year
5673Solids, settleableMO AVG report only all year
5673Solids, settleableDAILY MX report only all year
5673Iron, total [as Fe]DAILY MN report only all year
5673Iron, total [as Fe]MO AVG <= 3 mg/L all year
5673Iron, total [as Fe]DAILY MX <= 6 mg/L all year
5673Manganese, total [as Mn]DAILY MN report only all year
5673Manganese, total [as Mn]MO AVG <= 2 mg/L all year
5673Manganese, total [as Mn]DAILY MX <= 4 mg/L all year
5673Flow, in conduit or thru treatment plantMO AVG report only all year
5673Flow, 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