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City of Wayland

Sewage treatment plant, Wayland, Iowa. NPDES permit IA0047953, in force until Jul 31, 2027. Last 12 months: over a limit 22 times (last September 2026), 16 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (26 values)
Renewal application due
Feb 1, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
10 values over a limit, 0 required values missing, 0 of 12 reports late

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

All 22 values over a limit
Period endingParameterReportedLimitOver by
December 2025Nitrogen, ammonia total [as N], daily maximum4.2≤ 3.9 mg/L8%
January 2026Nitrogen, ammonia total [as N], 30-day average15.25≤ 3.4 mg/L349%
February 2026Nitrogen, ammonia total [as N], 30-day average16.5≤ 4 mg/L313%
February 2026Nitrogen, ammonia total [as N], daily maximum19≤ 8.4 mg/L126%
March 2026Nitrogen, ammonia total [as N], 30-day average10.38163≤ 8.8 lb/d18%
March 2026Nitrogen, ammonia total [as N], 30-day average15.2≤ 3.4 mg/L347%
March 2026Nitrogen, ammonia total [as N], daily maximum13.9278≤ 10 lb/d39%
March 2026Nitrogen, ammonia total [as N], daily maximum24≤ 3.9 mg/L515%
April 2026Nitrogen, ammonia total [as N], 30-day average5.8≤ 1.5 mg/L287%
April 2026Nitrogen, ammonia total [as N], daily maximum9.2≤ 4.7 mg/L96%
May 2026Nitrogen, ammonia total [as N], 30-day average1.875≤ 1.7 mg/L10%
June 2026Nitrogen, ammonia total [as N], 30-day average1.442≤ 1.3 mg/L11%
June 2026Nitrogen, ammonia total [as N], daily maximum4.4≤ 3.2 mg/L38%
June 2026Nitrogen, ammonia total [as N], daily maximum8.953824≤ 8.3 lb/d8%
August 2026Nitrogen, ammonia total [as N], 30-day average10.24214≤ 2.5 lb/d310%
August 2026Nitrogen, ammonia total [as N], 30-day average8.225≤ 1 mg/L723%
August 2026Nitrogen, ammonia total [as N], daily maximum12≤ 2.7 mg/L344%
August 2026Nitrogen, ammonia total [as N], daily maximum25.5204≤ 6.9 lb/d270%
September 2026Nitrogen, ammonia total [as N], 30-day average22.1919≤ 2.7 lb/d722%
September 2026Nitrogen, ammonia total [as N], 30-day average6.4≤ 1.1 mg/L482%
September 2026Nitrogen, ammonia total [as N], daily maximum46.292≤ 6.9 lb/d571%
September 2026Nitrogen, ammonia total [as N], daily maximum7.4≤ 2.7 mg/L174%

Limits in force (70)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]daily minimum≥ 5 mg/Lall year
BOD, 5-day, 20 deg. C30-day averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (mg/L)all year
BOD, 5-day, 20 deg. C30-day averagereport only (lb/d)all year
BOD, 5-day, 20 deg. Cdaily maximumreport only (lb/d)all year
pHdaily minimum≥ 6.5 SUall year
pHdaily maximum≤ 9 SUall year
pH30-day averagereport only (SU)all year
pHdaily maximumreport only (SU)all year
Solids, total suspended30-day average≤ 80 mg/Lall year
Solids, total suspended7-day average≤ 120 mg/Lall year
Solids, total suspended30-day average≤ 206 lb/dall year
Solids, total suspended7-day average≤ 310 lb/dall year
Solids, total suspended30-day averagereport only (mg/L)all year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspended30-day averagereport only (lb/d)all year
Solids, total suspendeddaily maximumreport only (lb/d)all year
Nitrogen, ammonia total [as N]30-day average≤ 1.6 mg/LOct
Nitrogen, ammonia total [as N]30-day average≤ 2.5 mg/LDec
Nitrogen, ammonia total [as N]30-day average≤ 1.1 mg/LSep
Nitrogen, ammonia total [as N]30-day average≤ 1.5 mg/LApr
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LJan
Nitrogen, ammonia total [as N]30-day average≤ 1.7 mg/LMay
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LAug
Nitrogen, ammonia total [as N]30-day average≤ 3.4 mg/LMar
Nitrogen, ammonia total [as N]30-day average≤ 1.3 mg/LJun
Nitrogen, ammonia total [as N]30-day average≤ 2.3 mg/LNov
Nitrogen, ammonia total [as N]30-day average≤ 1 mg/LJul
Nitrogen, ammonia total [as N]30-day average≤ 4 mg/LFeb
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LOct
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LDec
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LSep
Nitrogen, ammonia total [as N]daily maximum≤ 4.7 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 19.9 mg/LJan
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LMay
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LAug
Nitrogen, ammonia total [as N]daily maximum≤ 3.9 mg/LMar
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJun
Nitrogen, ammonia total [as N]daily maximum≤ 2.7 mg/LNov
Nitrogen, ammonia total [as N]daily maximum≤ 3.2 mg/LJul
Nitrogen, ammonia total [as N]daily maximum≤ 8.4 mg/LFeb
Nitrogen, ammonia total [as N]30-day average≤ 4 lb/dOct
Nitrogen, ammonia total [as N]30-day average≤ 6.4 lb/dDec
Nitrogen, ammonia total [as N]30-day average≤ 2.7 lb/dSep
Nitrogen, ammonia total [as N]30-day average≤ 3.9 lb/dApr
Nitrogen, ammonia total [as N]30-day average≤ 8.8 lb/dJan
Nitrogen, ammonia total [as N]30-day average≤ 4.5 lb/dMay
Nitrogen, ammonia total [as N]30-day average≤ 2.5 lb/dAug
Nitrogen, ammonia total [as N]30-day average≤ 8.8 lb/dMar
Nitrogen, ammonia total [as N]30-day average≤ 3.4 lb/dJun
Nitrogen, ammonia total [as N]30-day average≤ 6 lb/dNov
Nitrogen, ammonia total [as N]30-day average≤ 2.6 lb/dJul
Nitrogen, ammonia total [as N]30-day average≤ 10.2 lb/dFeb
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 lb/dOct
Nitrogen, ammonia total [as N]daily maximum≤ 10 lb/dDec
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 lb/dSep
Nitrogen, ammonia total [as N]daily maximum≤ 12.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 51.4 lb/dJan
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 lb/dMay
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 lb/dAug
Nitrogen, ammonia total [as N]daily maximum≤ 10 lb/dMar
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 lb/dJun
Nitrogen, ammonia total [as N]daily maximum≤ 6.9 lb/dNov
Nitrogen, ammonia total [as N]daily maximum≤ 8.3 lb/dJul
Nitrogen, ammonia total [as N]daily maximum≤ 21.7 lb/dFeb
E. coligeometric mean≤ 580 #/100mLMar–Nov
BOD, carbonaceous [5 day, 20 C]30-day average≤ 25 mg/Lall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 40 mg/Lall year
BOD, carbonaceous [5 day, 20 C]30-day average≤ 64 lb/dall year
BOD, carbonaceous [5 day, 20 C]7-day average≤ 103 lb/dall year

New limits from Jul 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chloride [as Cl], 30-day average1005 lb/dnew——
Chloride [as Cl], 30-day average389 mg/Lnew——
Chloride [as Cl], daily maximum629 mg/Lnew——
Chloride [as Cl], daily maximum1626 lb/dnew——

How strict are these limits?

Cited limits by parameter: Iowa'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/IA0047953 · MCP: https://passage-data.com/mcp