Joint Basin Corporation

NPDES permit VA0001872 · Minor NON-POTW · effective, expires 2030-12-31 · 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 26 forms filed late

Last period with anything received: 2026-07-31.

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 (22)

OutfallParameterStatisticLimitMonths
001Specific conductanceDAILY MX report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Hardness, total [as CaCO3]DAILY MX report only all year
001Chloride [as Cl]DAILY MX report only all year
001Copper, dissolved [as Cu]DAILY MX report only all year
001Zinc, dissolved [as Zn]DAILY MX report only all year
001Methyl tert-butyl ether [MTBE]DAILY MX <= 440 ug/L all year
001TolueneDAILY MX <= 43 ug/L all year
001BenzeneDAILY MX <= 5.8 ug/L all year
001EthylbenzeneDAILY MX <= 4.3 ug/L all year
001NaphthaleneDAILY MX <= 8.9 ug/L all year
001Petrol hydrocarbons, total recoverableDAILY MX <= 15 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Xylene [mix of m+o+p]DAILY MX <= 33 ug/L all year
001TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaDAILY MX report only all year
001TU Static Renewal 7-Day Chronic Pimphales promelasDAILY MX report only all year
101Petrol hydrocarbons, total recoverableDAILY MX <= 15 mg/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
102Petrol hydrocarbons, total recoverableDAILY MX <= 15 mg/L all year
102Flow, in conduit or thru treatment plantMO AVG 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