CNW Regional Wastewater Treatment Authority

NPDES permit VA0077828 · Major POTW · effective, expires 2030-09-30 · 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

0values over a limit
0required values missing, on 0 form(s)
0of 14 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 (30)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN >= 7 mg/L all year
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspendedMO AVG <= 18 mg/L all year
001Solids, total suspendedWKLY AVG <= 27 mg/L all year
001Solids, total suspendedMO AVG <= 450 kg/d all year
001Solids, total suspendedWKLY AVG <= 680 kg/d all year
001Solids, total suspendedMO AVG report only all year
001Nitrogen, ammonia total [as N]MO AVG <= 3.6 mg/L Jan, Feb, Mar, Apr, May, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.6 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001Nitrogen, ammonia total [as N]WKLY AVG <= 4.8 mg/L Jan, Feb, Mar, Apr, May, Dec
001Nitrogen, ammonia total [as N]WKLY AVG <= 2.2 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001Flow, in conduit or thru treatment plantMO AVG <= 6.5 MGD (alert) all year
001Flow, in conduit or thru treatment plantDAILY MX report only (alert) all year
001Chlorine, total residualMO AVG <= .0083 mg/L all year
001Chlorine, total residualWKLY AVG <= .0088 mg/L all year
001Chlorine, total residualMINIMUM >= .6 mg/L all year
001E. coliGEO MEAN <= 97 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 15 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 12 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 22 mg/L Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 18 mg/L Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 380 kg/d Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 300 kg/d Jun, Jul, Aug, Sep, Oct, Nov
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 580 kg/d Jan, Feb, Mar, Apr, May, Dec
001BOD, carbonaceous [5 day, 20 C]WKLY AVG <= 450 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
001TU Static Renewal 7-Day Chronic Ceriodaphnia dubiaMAXIMUM <= 1.85 tox chronic 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