Louisa County Water Authority

NPDES permit VA0072079 · Minor NON-POTW · effective, expires 2028-04-30 · 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

6values over a limit
0required values missing, on 0 form(s)
0of 13 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli (2), Solids, total suspended (2), Nitrogen, ammonia total [as N] (2).

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 (26)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 5 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 2.5 kg/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 3.4 kg/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedWKLY AVG <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 2.5 kg/d all year
001Solids, total suspendedWKLY AVG <= 3.4 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.1 mg/L all year
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.1 mg/L all year
001Nitrogen, Kjeldahl, total [as N]MO AVG report only all year
001Nitrite + Nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]MO AVG report only all year
001Flow, in conduit or thru treatment plantMO AVG <= .02 MGD (alert) all year
001Chlorine, total residualMO AVG <= .008 mg/L all year
001Chlorine, total residualWKLY AVG <= .01 mg/L all year
001Chlorine, total residualINST MIN >= .6 mg/L all year
001BOD, percent removal [total]MINIMUM >= 85 % all year
001E. coliMO GEOMN <= 126 #/100mL all year
001Solids, suspended percent removalMINIMUM >= 77 % 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