Clarke County Sanitary Authority

NPDES permit VA0085171 · Minor POTW · effective, expires 2030-09-30 · EPA's file as of 2026-09-19

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EPA's record, 2025-09-01 to 2026-08-31

4values over a limit
0required values missing, on 0 form(s)
0of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: Chloride [as Cl] (2), BOD, carbonaceous [5 day, 20 C] (1), Nitrogen, ammonia total [as N] (1).

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 (30)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 7.3 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedMX WK AV <= 22 mg/L all year
001Solids, total suspendedMO AVG <= 5.6 kg/d all year
001Solids, total suspendedMX WK AV <= 8.2 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.2 mg/L Jan, Feb, Mar, Apr, May
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]MX WK AV <= 6.2 mg/L Jan, Feb, Mar, Apr, May
001Nitrogen, ammonia total [as N]MX WK AV <= 2.2 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001Chloride [as Cl]MO AVG <= 420 mg/L all year
001Chloride [as Cl]MX WK AV <= 420 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG <= .099 MGD (alert) all year
001Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
001E. coliGEO MEAN <= 63 #/100mL all year
001Nitrogen, Total As NMO AVG <= 4 mg/L all year
001Phosphorus, Total As PMO AVG <= .3 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 18 mg/L Jan, Feb, Mar, Apr, May
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 8 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 27 mg/L Jan, Feb, Mar, Apr, May
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 2 kg/d Jun, Jul, Aug, Sep, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 6.7 kg/d Jan, Feb, Mar, Apr, May
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 3 kg/d Jun, Jul, Aug, Sep, Oct, Nov, Dec
001BOD, carbonaceous [5 day, 20 C]MX WK AV <= 10 kg/d Jan, Feb, Mar, Apr, May
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