GREAT RIVER UTILITY OPERATING CO LLC, SUNSET SUBDIVISION

NPDES permit MS0036714 · Minor NON-POTW · administratively continued, expires 2026-06-30 · 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.

This permit expired on 2026-06-30 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 1 forms filed late

Last period with anything received: 2025-12-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).

Limits in force (28)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]MINIMUM >= 6 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 30 mg/L all year
001BOD, 5-day, 20 deg. CDAILY MX <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMX MO AV <= 13 lb/d all year
001BOD, 5-day, 20 deg. CDAILY MX <= 19 lb/d all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMX MO AV <= 60 mg/L all year
001Solids, total suspendedDAILY MX <= 60 mg/L all year
001Solids, total suspendedMX MO AV <= 25 lb/d all year
001Solids, total suspendedDAILY MX <= 25 lb/d all year
001Nitrogen, total [as N]MX MO AV report only all year
001Nitrogen, total [as N]DAILY MX report only all year
001Nitrogen, total [as N]MX MO AV <= 4.8 lb/d all year
001Nitrogen, total [as N]DAILY MX <= 7.2 lb/d all year
001Nitrogen, ammonia total [as N]MX MO AV <= 2.48 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 3.72 mg/L all year
001Nitrogen, ammonia total [as N]MX MO AV <= 1.03 lb/d all year
001Nitrogen, ammonia total [as N]DAILY MX <= 1.55 lb/d all year
001Phosphorus, total [as P]MX MO AV report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MX MO AV <= 2.42 lb/d all year
001Phosphorus, total [as P]DAILY MX <= 3.63 lb/d all year
001Flow, in conduit or thru treatment plantMX MO AV <= .05 MGD all year
001Chlorine, total residualMX MO AV <= .011 mg/L all year
001Chlorine, total residualDAILY MX <= .019 mg/L all year
001E. coliMX MO AV <= 126 #/100mL all year
001E. coliDAILY MX <= 410 #/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