Washington County Service Authority

NPDES permit VA0087378 · Minor POTW · administratively continued, expires 2023-01-31 · 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.

This permit expired on 2023-01-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 11 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 (21)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 6.5 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 <= 72 kg/d all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 110 kg/d all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 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 <= 72 kg/d all year
001Solids, total suspendedWKLY AVG <= 110 kg/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 4.4 mg/L Jan, Feb, Mar, Apr, May
001Nitrogen, ammonia total [as N]MO AVG <= 3.6 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.4 mg/L Jan, Feb, Mar, Apr, May
001Nitrogen, ammonia total [as N]WKLY AVG <= 3.6 mg/L Jun, Jul, Aug, Sep, Oct, Nov, Dec
001Flow, in conduit or thru treatment plantMO AVG <= .63 MGD (alert) all year
001Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
001Chlorine, total residualMO AVG <= .024 mg/L all year
001Chlorine, total residualWKLY AVG <= .029 mg/L all year
001Chlorine, total residualMINIMUM >= .6 mg/L all year
001E. coliGEO MEAN <= 126 #/100mL 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