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Apple Springs Resort (H2O Clear Solutions LLC)

Sewerage Systems, Sturgis, South Dakota. NPDES permit SD0028620, in force until Apr 30, 2029. Last 12 months: over a limit 22 times (last August 2026), 8 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: form A monthly (20 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 12 of 12 reports late

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

All 22 values over a limit
Period endingParameterReportedLimitOver by
December 2025BOD, 5-day, 20 deg. C, 30-day average17.4 mg/L≤ 10 mg/L74%
December 2025BOD, 5-day, 20 deg. C, daily maximum75 mg/L≤ 17.5 mg/L329%
December 2025Oxygen, dissolved [DO], daily minimum4.84 mg/L≥ 5 mg/L3%
January 2026BOD, 5-day, 20 deg. C, daily maximum18 mg/L≤ 17.5 mg/L3%
January 2026Nitrogen, ammonia total [as N], 30-day average6.95 mg/L≤ 1.6 mg/L334%
January 2026Nitrogen, ammonia total [as N], daily maximum27.4 mg/L≤ 3.4 mg/L706%
April 2026BOD, 5-day, 20 deg. C, 30-day average11.8 mg/L≤ 10 mg/L18%
April 2026BOD, 5-day, 20 deg. C, daily maximum44 mg/L≤ 17.5 mg/L151%
May 2026E. coli, colony forming units [CFU], 30-day geometric mean842 #/100mL≤ 630 #/100mL34%
May 2026E. coli, colony forming units [CFU], daily maximum2420 #/100mL≤ 1178 #/100mL105%
May 2026Nitrogen, ammonia total [as N], 30-day average1.76 mg/L≤ 1.6 mg/L10%
May 2026Nitrogen, ammonia total [as N], daily maximum4.23 mg/L≤ 3.4 mg/L24%
June 2026E. coli, colony forming units [CFU], 30-day geometric mean1319 #/100mL≤ 630 #/100mL109%
June 2026E. coli, colony forming units [CFU], daily maximum> 2420 #/100mL≤ 1178 #/100mL—
June 2026Nitrogen, ammonia total [as N], 30-day average3.9 mg/L≤ 1.6 mg/L144%
June 2026Nitrogen, ammonia total [as N], daily maximum6.91 mg/L≤ 3.4 mg/L103%
August 2026BOD, 5-day, 20 deg. C, 30-day average11.8 mg/L≤ 10 mg/L18%
August 2026BOD, 5-day, 20 deg. C, daily maximum18 mg/L≤ 17.5 mg/L3%
August 2026E. coli, colony forming units [CFU], 30-day geometric mean700.2 #/100mL≤ 630 #/100mL11%
August 2026E. coli, colony forming units [CFU], daily maximum2420 #/100mL≤ 1178 #/100mL105%
August 2026Nitrogen, ammonia total [as N], 30-day average4.34 mg/L≤ 1.6 mg/L171%
August 2026Nitrogen, ammonia total [as N], daily maximum6.93 mg/L≤ 3.4 mg/L104%

Limits in force (20)

ParameterStatisticLimitMonths
Temperature, water deg. fahrenheit30-day averagereport only (deg F)all year
Temperature, water deg. fahrenheitdaily maximum≤ 75 deg Fall year
Flow rate30-day averagereport only (MGD)all year
Flow ratedaily maximumreport only (MGD)all year
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. C30-day average≤ 10 mg/Lall year
BOD, 5-day, 20 deg. Cdaily maximum≤ 17.5 mg/Lall year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
Solids, total suspended30-day average≤ 10 mg/Lall year
Solids, total suspendeddaily maximum≤ 17.5 mg/Lall year
Nitrogen, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/Lall year
Nitrogen, ammonia total [as N]daily maximum≤ 3.4 mg/Lall year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Chlorine, total residualdaily maximum≤ .019 mg/Lall year
E. coli, colony forming units [CFU]30-day geometric mean≤ 630 #/100mLMay–Sep
E. coli, colony forming units [CFU]daily maximum≤ 1178 #/100mLMay–Sep
Flow, totalmonthly totalreport only (Mgal)all 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.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/SD0028620 · MCP: https://passage-data.com/mcp