Passage Data · Check a report · Use it from your AI

Santa-Fernwood Sewer District

Sewage treatment plant, Fernwood, Idaho. NPDES permit ID0022845 expired May 31, 2025; its limits still apply. Last 12 months: over a limit once (last February 2026), 6 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 20 days after each period: outfall 001 form M monthly (29 values), outfall REC1 form Q quarterly (5 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 16 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

Period endingParameterReportedLimit
February 2026pH, instantaneous maximum9.08 SU≤ 9 SU

Limits in force (34)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigradeinstantaneous maximum≤ 35 deg Call year001
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 25 lb/dall year001
BOD, 5-day, 20 deg. Cweekly average≤ 38 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year001
pHinstantaneous minimum≥ 6.5 SUall year001
pHinstantaneous maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedweekly average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 25 lb/dall year001
Solids, total suspendeddaily maximum≤ 34 lb/dall year001
Solids, total suspendedweekly average≤ 38 lb/dall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Nitrogen, ammonia total [as N]instantaneous maximumreport only (mg/L)all year001
Phosphorus, total [as P]instantaneous maximumreport only (mg/L)all year001
E. coli, MTEC-MFmonthly geometric mean≤ 126 #/100mLall year001
E. coli, MTEC-MFinstantaneous maximumreport only (#/100mL)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Chlorine, total residualmonthly average≤ .2 mg/Lall year001
Chlorine, total residualdaily maximum≤ .5 mg/Lall year001
Chlorine, total residualmonthly average≤ .2 lb/dall year001
Chlorine, total residualdaily maximum≤ .4 lb/dall year001
BOD, 5-day, percent removalmonthly average minimum≥ 85 %all year001
Solids, suspended percent removalmonthly average minimum≥ 85 %all year001
Temperature, water deg. centigradeinstantaneous maximumreport only (deg C)all yearREC1
Oxygen, dissolved [DO]instantaneous minimumreport only (mg/L)all yearREC1
pHinstantaneous maximumreport only (SU)all yearREC1
Nitrogen, ammonia total [as N]instantaneous maximumreport only (mg/L)all yearREC1
Phosphorus, total [as P]instantaneous maximumreport only (mg/L)all yearREC1

How strict are these limits?

Cited limits by parameter: Idaho's rules and the federal ones.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/ID0022845 · MCP: https://passage-data.com/mcp