Loudoun County Sanitation Authority

NPDES permit VA0088196 · Minor POTW · effective, expires 2028-02-29 · 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
0required values missing, on 0 form(s)
0of 12 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
001Oxygen, dissolved [DO]MINIMUM >= 7 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 8.4 SU all year
001Solids, total suspendedMO AVG <= 10 mg/L all year
001Solids, total suspendedWKLY AVG <= 15 mg/L all year
001Solids, total suspendedMO AVG <= 6.2 kg/d all year
001Solids, total suspendedWKLY AVG <= 9.4 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 3 mg/L all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 4.5 mg/L all year
001Nitrogen, Kjeldahl, total [as N]MO AVG <= 1.9 kg/d all year
001Nitrogen, Kjeldahl, total [as N]WKLY AVG <= 2.8 kg/d all year
001Flow, in conduit or thru treatment plantMO AVG <= .165 MGD (alert) all year
001Flow, in conduit or thru treatment plantMO MAX report only (alert) all year
001E. coliGEO MEAN <= 126 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6.2 kg/d all year
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 9.4 kg/d all year
001BOD, carbonaceous [5 day, 20 C]MO AVG report only all year
001BOD, carb-5 day, 20 deg C, percent removalMO AV MN >= 85 % all year
001Solids, suspended percent removalMO AV MN >= 85 % 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