Spring Hill School District

NPDES permit AR0046345 · Minor NON-POTW · effective, expires 2029-02-28 · EPA's file as of 2026-09-19

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EPA's record, 2025-09-01 to 2026-08-31

5values over a limit
7required values missing, on 2 form(s)
11of 20 forms filed late

Last period with anything received: 2026-07-31. Most often over: Nitrogen, ammonia total [as N] (3), BOD, carbonaceous [5 day, 20 C] (2).

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 (35)

OutfallParameterStatisticLimitMonths
001Oxygen, dissolved [DO]INST MIN >= 3 mg/L May, Jun, Jul, Aug, Sep, Oct
001Oxygen, dissolved [DO]INST MIN >= 2 mg/L Jan, Feb, Mar, Apr, Nov, Dec
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 20 mg/L all year
001Solids, total suspendedDAILY MX <= 30 mg/L all year
001Solids, total suspendedMO AVG <= 3.3 lb/d all year
001Solids, total suspendedDAILY MX <= 5 lb/d all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Oil & GreaseMO AVG <= 1.7 lb/d all year
001Oil & GreaseDAILY MX <= 2.5 lb/d all year
001Nitrogen, ammonia total [as N]MO AVG <= 6.1 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 <= 12 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 6.1 mg/L Apr
001Nitrogen, ammonia total [as N]DAILY MX <= 7.5 mg/L May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]DAILY MX <= 17 mg/L Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]MO AVG <= 1 lb/d Apr
001Nitrogen, ammonia total [as N]MO AVG <= .8 lb/d May, Jun, Jul, Aug, Sep, Oct
001Nitrogen, ammonia total [as N]MO AVG <= 2 lb/d Jan, Feb, Mar, Nov, Dec
001Nitrogen, ammonia total [as N]DAILY MX <= 1 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 <= 2.8 lb/d Jan, Feb, Mar, Nov, Dec
001Lead, total recoverableMO AVG <= 3.6 ug/L all year
001Lead, total recoverableMO AVG <= .0004 lb/d 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
001Coliform, fecal general30DA GEO <= 1000 #/100mL all year
001Coliform, fecal general7 DA GEO <= 2000 #/100mL all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 20 mg/L all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 30 mg/L all year
001BOD, carbonaceous [5 day, 20 C]MO AVG <= 3.3 lb/d all year
001BOD, carbonaceous [5 day, 20 C]DAILY MX <= 5 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