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

Town of Reardan

Sewage treatment plant, Reardan, Washington. NPDES permit WA0045306 expired Jun 30, 2015; its limits still apply. Last 12 months: over a limit 17 times (last September 2026), 62 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form MM monthly (14 values), outfall 002 form QQ quarterly (2 values), outfall IN1 form MM monthly (12 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
24 values over a limit, 24 required values missing, 0 of 27 reports late

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

All 17 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average2.9≤ 2 mg/L45%
December 2025Coliform, fecal general, monthly average61.6≤ 50 #/100mL23%
December 2025Coliform, fecal general, weekly average130≤ 100 #/100mL30%
January 2026Coliform, fecal general, monthly average96.5≤ 50 #/100mL93%
January 2026Coliform, fecal general, weekly average170≤ 100 #/100mL70%
April 2026pH, daily maximum9.2≤ 9 SU—
May 2026Nitrogen, ammonia total [as N], maximum5.03≤ 3 mg/L68%
May 2026Nitrogen, ammonia total [as N], monthly average3.43≤ 2 mg/L72%
May 2026pH, daily maximum9.8≤ 9 SU—
June 2026Nitrogen, ammonia total [as N], maximum6.5≤ 3 mg/L117%
June 2026Nitrogen, ammonia total [as N], monthly average6.5≤ 2 mg/L225%
July 2026Coliform, fecal general, monthly average169≤ 50 #/100mL238%
July 2026Coliform, fecal general, weekly average350≤ 100 #/100mL250%
August 2026Coliform, fecal general, monthly average113.75≤ 50 #/100mL128%
August 2026Coliform, fecal general, weekly average350≤ 100 #/100mL250%
September 2026Coliform, fecal general, monthly average328.26≤ 50 #/100mL557%
September 2026Coliform, fecal general, weekly average1600≤ 100 #/100mL1500%

Limits in force (67)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. centigrademaximumreport only (deg C) (alert, not enforceable)all year001
Temperature, water deg. centigrademaximumreport only (deg C) (alert, not enforceable)all year001
pHdaily minimum≥ 6 SUall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, totalmonthly average minimum≥ 65 %all year001
Nitrogen, ammonia total [as N]maximum≤ 3 mg/LApr–Oct001
Nitrogen, ammonia total [as N]maximum≤ 3 mg/LApr–Oct001
Nitrogen, ammonia total [as N]maximum≤ 34 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]maximum≤ 34 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LApr–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LApr–Oct001
Nitrogen, ammonia total [as N]monthly average≤ 22.5 mg/LJan, Feb, Mar, Nov, Dec001
Nitrogen, ammonia total [as N]monthly average≤ 22.5 mg/LJan, Feb, Mar, Nov, Dec001
Chlorine, total residualaverage≤ .5 mg/Lall year001
Chlorine, total residualweekly average≤ .75 mg/Lall year001
Coliform, fecal generalmonthly average≤ 50 #/100mLall year001
Coliform, fecal generalmonthly average≤ 50 #/100mLall year001
Coliform, fecal generalweekly average≤ 100 #/100mLall year001
Coliform, fecal generalweekly average≤ 100 #/100mLall year001
Flowmaximumreport only (MGD) (alert, not enforceable)all year001
Flowmaximumreport only (MGD) (alert, not enforceable)all year001
Flowmonthly averagereport only (MGD) (alert, not enforceable)all year001
Flowmonthly averagereport only (MGD) (alert, not enforceable)all year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18.9 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18.9 lb/dall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18.9 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.3 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.3 lb/dall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 28.3 lb/dall year001
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 65 %all year001
Carbonaceous oxygen demand, % removalmonthly average minimum≥ 65 %all year001
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L) (alert, not enforceable)Mar, Jun, Sep, Nov002
Nitrogen, Kjeldahl, total [as N]maximumreport only (mg/L) (alert, not enforceable)Mar, Jun, Sep, Nov002
Phosphorus, total [as P]maximumreport only (mg/L) (alert, not enforceable)Mar, Jun, Sep, Nov002
Phosphorus, total [as P]maximumreport only (mg/L) (alert, not enforceable)Mar, Jun, Sep, Nov002
Solids, total suspendedaveragereport only (mg/L) (alert, not enforceable)all yearIN1
Solids, total suspendedaveragereport only (mg/L) (alert, not enforceable)all yearIN1
Solids, total suspendedmaximumreport only (mg/L) (alert, not enforceable)all yearIN1
Solids, total suspendedmaximumreport only (mg/L) (alert, not enforceable)all yearIN1
Solids, total suspendedaveragereport only (lb/d) (alert, not enforceable)all yearIN1
Solids, total suspendedaveragereport only (lb/d) (alert, not enforceable)all yearIN1
Solids, total suspendedaveragereport only (lb/d) (alert, not enforceable)all yearIN1
Solids, total suspendedmaximumreport only (lb/d) (alert, not enforceable)all yearIN1
Solids, total suspendedmaximumreport only (lb/d) (alert, not enforceable)all yearIN1
Solids, total suspendedmaximumreport only (lb/d) (alert, not enforceable)all yearIN1
Flowaveragereport only (MGD) (alert, not enforceable)all yearIN1
Flowaveragereport only (MGD) (alert, not enforceable)all yearIN1
Flowaveragereport only (MGD) (alert, not enforceable)all yearIN1
Flowaveragereport only (MGD) (alert, not enforceable)all yearIN1
Flowmaximumreport only (MGD) (alert, not enforceable)all yearIN1
Flowmaximumreport only (MGD) (alert, not enforceable)all yearIN1
Flowmaximumreport only (MGD) (alert, not enforceable)all yearIN1
Flowmaximumreport only (MGD) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]averagereport only (mg/L) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]averagereport only (mg/L) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]maximumreport only (mg/L) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]averagereport only (lb/d) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]averagereport only (lb/d) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]maximumreport only (lb/d) (alert, not enforceable)all yearIN1
BOD, carbonaceous [5 day, 20 C]maximumreport only (lb/d) (alert, not enforceable)all yearIN1

How strict are these limits?

Cited limits by parameter: Washington'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/WA0045306 · MCP: https://passage-data.com/mcp