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Haakon School District 27-1

Steam And Air-Conditioning Supply, Philip, South Dakota. NPDES permit SD0025569 expired Dec 31, 2025; its limits still apply. Last 12 months: no values over a limit, 14 required values missing, 4 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (14 values), form SA twice a year (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 6 of 24 reports late

Limits in force (16)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheit30-day averagereport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximumreport only (deg F)all year
Flow rate30-day averagereport only (gal/min)all year
Flow ratedaily maximumreport only (gal/min)all year
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 20 mg/Lall year
Solids, total suspendeddaily maximum≤ 30 mg/Lall year
Chloride [as Cl]30-day averagereport only (mg/L)all year
Chloride [as Cl]daily maximumreport only (mg/L)all year
Radium 226, totalrolling average≤ 5 pCi/Lall year
Radium 226, totaldaily maximum≤ 15 pCi/Lall year
Floating solids, waste or visible foam-visualdaily maximum< 1 N=0;Y=1all year
Flow, totalmonthly totalreport only (Mgal)all year
Solids, total dissolveddaily maximum≤ 2500 mg/Lall year
Duration of dischargemonthly totalreport only (d)all year

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SD0025569 · MCP: https://passage-data.com/mcp