Three Stone Properties, Inc.

NPDES permit MO0121568 · 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

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

10values over a limit
0required values missing, on 0 form(s)
2of 12 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (10).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (38)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]DAILY MN report only all year
001Oxygen, dissolved [DO]MO AV MN report only all year
001BOD, 5-day, 20 deg. CWKLY AVG <= 15 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 10 mg/L all year
001pHMINIMUM >= 6.5 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedWKLY AVG <= 20 mg/L all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jan, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Feb
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L May
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jun
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Jul
001Nitrogen, ammonia total [as N]DAILY MX <= 12.1 mg/L Sep
001Nitrogen, ammonia total [as N]DAILY MX <= 10.1 mg/L Aug
001Nitrogen, ammonia total [as N]MO AVG <= 2.5 mg/L Oct
001Nitrogen, ammonia total [as N]MO AVG <= 3.1 mg/L Jan, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 2.7 mg/L Feb
001Nitrogen, ammonia total [as N]MO AVG <= 2.7 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 2.2 mg/L May
001Nitrogen, ammonia total [as N]MO AVG <= 1.7 mg/L Jun
001Nitrogen, ammonia total [as N]MO AVG <= 1.5 mg/L Jul
001Nitrogen, ammonia total [as N]MO AVG <= 1.8 mg/L Sep
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 mg/L Aug
001Nitrogen, nitrate total [as N]DAILY MX report only all year
001Nitrogen, nitrate total [as N]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= .5 mg/L all year
001Aluminum, total recoverableDAILY MX report only all year
001Aluminum, total recoverableMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Chlorine, total residualDAILY MX <= 18 ug/L all year
001Chlorine, total residualMO AVG <= 9 ug/L all year
001E. coliDAILY MX <= 126 #/100mL all year
001E. coliMO AVG 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