Hidden Oaks Estates Subdivision

NPDES permit IA0076970 · Minor NON-POTW · administratively continued, expires 2007-02-10 · 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 2007-02-10 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
28required values missing, on 2 form(s)
0of 12 forms filed late

Last period with anything received: 2026-08-31.

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among IA permits in EPA's filings — check your permit).

Limits in force (58)

OutfallParameterStatisticLimitMonths
001pHDAILY MN >= 6 SU all year
001pHDAILY MX <= 9 SU all year
001Solids, total suspended30DA AVG <= 30 mg/L all year
001Solids, total suspended7 DA AVG <= 45 mg/L all year
001Solids, total suspended30DA AVG <= 1 lb/d all year
001Solids, total suspended7 DA AVG <= 2 lb/d all year
001Nitrogen, ammonia total [as N]30DA AVG <= 20 mg/L Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 24 mg/L Dec
001Nitrogen, ammonia total [as N]30DA AVG <= 20 mg/L May
001Nitrogen, ammonia total [as N]30DA AVG <= 18 mg/L Aug
001Nitrogen, ammonia total [as N]30DA AVG <= 20 mg/L Apr
001Nitrogen, ammonia total [as N]30DA AVG <= 21 mg/L Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 29 mg/L Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 34 mg/L Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 41 mg/L Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 23 mg/L Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 24 mg/L Oct
001Nitrogen, ammonia total [as N]30DA AVG <= 20 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 36 mg/L Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 26 mg/L Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 32 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 43 mg/L Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 52 mg/L Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 61 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 35 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 36 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 30 mg/L Jun
001Nitrogen, ammonia total [as N]30DA AVG <= .85 lb/d Nov
001Nitrogen, ammonia total [as N]30DA AVG <= 1 lb/d Dec
001Nitrogen, ammonia total [as N]30DA AVG <= .85 lb/d May
001Nitrogen, ammonia total [as N]30DA AVG <= .75 lb/d Aug
001Nitrogen, ammonia total [as N]30DA AVG <= .85 lb/d Apr
001Nitrogen, ammonia total [as N]30DA AVG <= .89 lb/d Jul
001Nitrogen, ammonia total [as N]30DA AVG <= 1.2 lb/d Mar
001Nitrogen, ammonia total [as N]30DA AVG <= 1.5 lb/d Jan
001Nitrogen, ammonia total [as N]30DA AVG <= 1.7 lb/d Feb
001Nitrogen, ammonia total [as N]30DA AVG <= 1 lb/d Sep
001Nitrogen, ammonia total [as N]30DA AVG <= 1 lb/d Oct
001Nitrogen, ammonia total [as N]30DA AVG <= .85 lb/d Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d Nov
001Nitrogen, ammonia total [as N]DAILY MX <= 1.5 lb/d Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d May
001Nitrogen, ammonia total [as N]DAILY MX <= 1.1 lb/d Aug
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 1.8 lb/d Mar
001Nitrogen, ammonia total [as N]DAILY MX <= 2.2 lb/d Jan
001Nitrogen, ammonia total [as N]DAILY MX <= 2.6 lb/d Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 1.5 lb/d Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 1.5 lb/d Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d Jun
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 25 mg/L all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 40 mg/L all year
001BOD, carbonaceous [5 day, 20 C]30DA AVG <= 1 lb/d all year
001BOD, carbonaceous [5 day, 20 C]7 DA AVG <= 2 lb/d 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