U.S. Army Corps of Engineers - Denby Point Recreation Area

NPDES permit AR0035394 · Minor FEDERAL · effective, expires 2031-02-28 · 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

3values over a limit
4required values missing, on 1 form(s)
1of 18 forms filed late

Last period with anything received: 2026-07-31. Most often over: E. coli (2), BOD, carbonaceous [5 day, 20 C] (1).

Reporting

Reports are due about 25 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (36)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 5 mg/L all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 15 mg/L all year
001Solids, total suspendedDAILY MX <= 22.5 mg/L all year
001Solids, total suspendedMO AVG <= 3.8 lb/d all year
001Solids, total suspendedDAILY MX <= 5.6 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 5.2 mg/L Apr
001Nitrogen, ammonia total [as N]MO AVG <= 5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 10 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 5.2 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 14.7 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG <= 1.3 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2.5 lb/d Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 1.3 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 3.7 lb/d Jan, Feb, Mar, Nov, Dec
001Phosphorus, total [as P]MO AVG report only all year
001Phosphorus, total [as P]DAILY MX report only all year
001Phosphorus, total [as P]MO AVG <= .25 lb/d all year
001Phosphorus, total [as P]DAILY MX <= .375 lb/d all year
001Discharge flow as % of stream flowMO AVG report only all year
001Discharge flow as % of stream flowDAILY MX report only all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, total residualINST MAX report only all year
001E. coliMO AVG <= 630 #/100mL Jan, Feb, Mar, Oct, Nov, Dec
001E. coliMO AVG <= 126 #/100mL Apr, May, Jun, Jul, Aug, Sep, Dec
001E. coliDAILY MX <= 1490 #/100mL Jan, Feb, Mar, Oct, Nov, Dec
001E. coliDAILY MX <= 298 #/100mL Apr, May, Jun, Jul, Aug, Sep, Dec
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 10 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 15 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 2.5 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 3.8 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