Rapidan Service Authority

NPDES permit VA0021105 · Minor POTW · effective, expires 2029-07-31 · 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 13 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 (25)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6.5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 25 kg/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 38 kg/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 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 <= 25 kg/d all year
001Solids, total suspendedWKLY AVG <= 38 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 2.3 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.1 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG <= .667 MGD (alert) all year
001Flow, in conduit or thru treatment plantMO MAX report only (alert) all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantMO MAX report only all year
001Chlorine, total residualMO AVG <= .007 mg/L all year
001Chlorine, total residualWKLY AVG <= .008 mg/L all year
001Chlorine, total residualMINIMUM >= .6 mg/L all year
001BOD, percent removal [total]MO AV MN >= 85 % all year
001E. coliMO AVG <= 126 #/100mL 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