Nelson County Service Authority

NPDES permit VA0089729 · Minor POTW · effective, expires 2028-05-31 · 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

20values over a limit
4required values missing, on 1 form(s)
2of 18 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (8), BOD, carbonaceous [5 day, 20 C] (4), Solids, total suspended (4).

Reporting

Reports are due about 10 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (31)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 7 mg/L 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 <= 25 kg/d all year
001Solids, total suspendedWKLY AVG <= 37 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Jan, Feb, Mar, Apr, May, Dec
001Nitrogen, ammonia total [as N]MO AVG <= .44 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]MX WK AV <= 2.5 mg/L Jan, Feb, Mar, Apr, May, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= .59 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001Hardness, total [as CaCO3]MINIMUM >= 100 mg/L all year
001Copper, total recoverableMX WK AV report only all year
001Flow, in conduit or thru treatment plantMO AVG <= .22 MGD (alert) all year
001Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
001Chlorine, total residualMO AVG <= .011 mg/L all year
001Chlorine, total residualMX WK AV <= .012 mg/L all year
001Chlorine, total residualINST MIN >= .6 mg/L all year
001E. coliGEO MEAN <= 126 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 25 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 7 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 40 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 10 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 21 kg/d Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 5 kg/d Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 33 kg/d Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 8.3 kg/d Jun, Jul, Aug, Sep, Oct, Nov
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