Onslow Water and Sewer Authority

NPDES permit NC0083551 · Minor NON-POTW · effective, expires 2029-07-31 · 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

0values over a limit
0required values missing, on 0 form(s)
1of 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 30 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (24)

OutfallParameterStatisticLimitMonths
001TurbidityDAILY MX report only all year
001ConductivityDAILY MX report only all year
001ConductivityDAILY MX report only all year
001ConductivityDAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001Oxygen, dissolved [DO]DAILY MX report only all year
001pHDAILY MN >= 6.8 SU all year
001pHDAILY MX <= 8.5 SU all year
001pHDAILY MX report only all year
001pHDAILY MX report only all year
001SalinityDAILY MX report only all year
001SalinityDAILY MX report only all year
001SalinityDAILY MX report only all year
001Solids, total suspended30DA AVG <= 10 mg/L all year
001Solids, total suspendedDAILY MX <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Chloride [as Cl]DAILY MX report only all year
001Manganese, total [as Mn]DAILY MX report only all year
001Zinc, total [as Zn]30DA AVG <= 42.8 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 47.6 ug/L all year
001Flow, in conduit or thru treatment plant30DA AVG <= .59 MGD all year
001Chlorine, total residualDAILY MX <= 13 ug/L all year
001Solids, total dissolvedDAILY MX report only 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