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Springfield WTP

Water Supply, Springfield, South Dakota. NPDES permit SD0028647, in force until Sep 30, 2029. Last 12 months: no values over a limit, 96 required values missing, 10 of 10 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (24 values)
Last report on file
July 2026
Oct 2024 – Sep 2025
0 values over a limit, 24 required values missing, 11 of 12 reports late

Limits in force (26)

ParameterStatisticLimitMonths
Temperature, water deg. centigrade30-day averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Flow rate30-day averagereport only (MGD)all year
Flow ratedaily maximumreport only (MGD)all year
Conductivity30-day averagereport only (umho/cm)Apr–Oct
Conductivity30-day averagereport only (umho/cm)all year
Conductivitydaily maximumreport only (umho/cm)Apr–Oct
Conductivitydaily maximumreport only (umho/cm)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Alkalinity, total [as CaCO3]30-day averagereport only (mg/L)all year
Alkalinity, total [as CaCO3]daily maximumreport only (mg/L)all year
Solids, total suspended30-day average≤ 90 mg/Lall year
Solids, total suspendeddaily maximum≤ 158 mg/Lall year
Oil and grease, hexane extr methoddaily maximum≤ 10 mg/Lall year
Nitrogen, ammonia total [as N]30-day averagereport only (mg/L)all year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]daily minimumreport only (mg/L)all year
Hardness, total [as CaCO3]30-day averagereport only (mg/L)all year
Floating solids, waste or visible foam-visualdaily maximum≤ 0 abst=0;prst=1all year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
Flow, totalmonthly totalreport only (Mgal)all year
Solids, total dissolved30-day averagereport only (mg/L)all year
Solids, total dissolveddaily maximumreport only (mg/L)all year
Duration of dischargemonthly totalreport only (d)all year
Oil and grease visualdaily maximum≤ 0 abst=0;prst=1all year

How strict are these limits?

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

Same industry: the 4 Water Supply permits in South Dakota.

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/SD0028647 · MCP: https://passage-data.com/mcp