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Myrtle Point, City of

Sewage treatment plant, Myrtle Point, Oregon. NPDES permit OR0020435, in force until May 31, 2029. Last 12 months: over a limit 37 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (35 values), form G monthly (6 values), form RW monthly (2 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
15 values over a limit, 0 required values missing, 0 of 30 reports late

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

All 37 values over a limit
Period endingParameterReportedLimitOver by
October 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum11.1 %≥ 85 %493%
October 2025BOD, carbonaceous [5 day, 20 C], daily maximum70.2 lb/d≤ 62 lb/d13%
October 2025BOD, carbonaceous [5 day, 20 C], weekly average54 lb/d≤ 47 lb/d15%
October 2025Nitrogen, ammonia total [as N], monthly average2.1 lb/d≤ 1.8 lb/d17%
October 2025Solids, suspended percent removal, monthly average minimum38.6 %≥ 85 %309%
October 2025Solids, total suspended, daily maximum636.1 lb/d≤ 130 lb/d389%
October 2025Solids, total suspended, monthly average20.1 mg/L≤ 20 mg/L1%
October 2025Solids, total suspended, monthly average75.8 lb/d≤ 63 lb/d20%
October 2025Solids, total suspended, weekly average54 mg/L≤ 30 mg/L80%
November 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum-35 %≥ 85 %800%
December 2025BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum-68.8 %≥ 85 %1025%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average208.5 lb/d≤ 150 lb/d39%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average30.5 mg/L≤ 25 mg/L22%
December 2025BOD, carbonaceous [5 day, 20 C], weekly average100.67 mg/L≤ 40 mg/L152%
December 2025BOD, carbonaceous [5 day, 20 C], weekly average685.26 lb/d≤ 230 lb/d198%
December 2025E. coli, monthly geometric mean387.6 #/100mL≤ 126 #/100mL208%
December 2025Solids, suspended percent removal, monthly average minimum57.2 %≥ 85 %185%
December 2025Solids, total suspended, daily maximum4586.6 lb/d≤ 360 lb/d1174%
December 2025Solids, total suspended, monthly average104.2 mg/L≤ 30 mg/L247%
December 2025Solids, total suspended, monthly average673.1 lb/d≤ 180 lb/d274%
December 2025Solids, total suspended, weekly average1922.8 lb/d≤ 270 lb/d612%
December 2025Solids, total suspended, weekly average309.3 mg/L≤ 45 mg/L587%
December 2025pH, daily maximum9.1 SU≤ 9 SU—
January 2026BOD, carbonaceous [5 day, 20 C], daily maximum365.2 lb/d≤ 300 lb/d22%
January 2026Solids, suspended percent removal, monthly average minimum26 %≥ 85 %393%
January 2026Solids, total suspended, daily maximum7841.6 lb/d≤ 360 lb/d2078%
January 2026Solids, total suspended, monthly average39.8 mg/L≤ 30 mg/L33%
January 2026Solids, total suspended, monthly average802.2 lb/d≤ 180 lb/d346%
January 2026Solids, total suspended, weekly average123.6 mg/L≤ 45 mg/L175%
January 2026Solids, total suspended, weekly average2626.6 lb/d≤ 270 lb/d873%
February 2026Solids, suspended percent removal, monthly average minimum55.7 %≥ 85 %195%
February 2026Solids, total suspended, daily maximum3294.4 lb/d≤ 360 lb/d815%
February 2026Solids, total suspended, monthly average436.7 lb/d≤ 180 lb/d143%
February 2026Solids, total suspended, weekly average1672.5 lb/d≤ 270 lb/d519%
February 2026Solids, total suspended, weekly average66.6 mg/L≤ 45 mg/L48%
July 2026Nitrogen, ammonia total [as N], monthly average4.3 lb/d≤ 1.8 lb/d139%
September 2026Nitrogen, total [as N], monthly average39.2 lb/d≤ 18 lb/d118%

Limits in force (72)

ParameterStatisticLimitMonths
Temperature, water deg. centigrademonthly averagereport only (deg C)all year
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Temperature, water deg. centigrademaximum 7-day averagereport only (deg C)all year
Flow ratemonthly averagereport only (cfs)May–Oct
Flow ratemonthly averagereport only (cfs)May–Oct
pHdaily minimum≥ 6 SUall year
pHdaily maximum≤ 9 SUall year
pHmonthly minimumreport only (SU)all year
pHmonthly maximumreport only (SU)all year
Alkalinity, total [as CaCO3]quarterly maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 20 mg/LMay–Oct
Solids, total suspendedmonthly average≤ 30 mg/LJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedmonthly average≤ 63 lb/dMay–Oct
Solids, total suspendedmonthly average≤ 180 lb/dJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendeddaily maximum≤ 130 lb/dMay–Oct
Solids, total suspendeddaily maximum≤ 360 lb/dJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly average≤ 45 mg/LJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedweekly average≤ 30 mg/LMay–Oct
Solids, total suspendedweekly average≤ 270 lb/dJan, Feb, Mar, Apr, Nov, Dec
Solids, total suspendedweekly average≤ 95 lb/dMay–Oct
Nitrogen, total [as N]monthly averagereport only (mg/L)May–Oct
Nitrogen, total [as N]daily maximumreport only (mg/L)May–Oct
Nitrogen, total [as N]monthly average≤ 42 lb/dMay, Jun
Nitrogen, total [as N]monthly average≤ 18 lb/dJul–Sep
Nitrogen, total [as N]monthly average≤ 18 lb/dOct
Nitrogen, total [as N]monthly average≤ 42 lb/dOct
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)May–Oct
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)May–Oct
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)Jan, Feb, Mar, Apr, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 8.3 lb/dMay, Jun
Nitrogen, ammonia total [as N]monthly average≤ 1.8 lb/dJul–Sep
Nitrogen, ammonia total [as N]monthly average≤ 1.8 lb/dOct
Nitrogen, ammonia total [as N]monthly average≤ 8.3 lb/dOct
Phosphorus, total [as P]monthly averagereport only (mg/L)May–Oct
Phosphorus, total [as P]daily maximumreport only (mg/L)May–Oct
Phosphorus, total [as P]monthly averagereport only (lb/d)May–Oct
Phosphorus, total [as P]daily maximumreport only (lb/d)May–Oct
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximum≤ 406 #/100mLall year
E. colimonthly geometric mean≤ 126 #/100mLall year
E. colidaily maximumreport only (#/100mL)all year
Excess thermal loadmaximum 7-day average≤ 94.9 mkcal/dayMay
Excess thermal loadmaximum 7-day average≤ 67.2 mkcal/dayJun
Excess thermal loadmaximum 7-day average≤ 24.6 mkcal/dayJul
Excess thermal loadmaximum 7-day average≤ 15.3 mkcal/dayAug
Excess thermal loadmaximum 7-day average≤ 10.4 mkcal/daySep
Excess thermal loadmaximum 7-day average≤ 10.3 mkcal/dayOct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 150 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 31 lb/dMay, Jun
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 300 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 62 lb/dMay, Jun
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 62 lb/dJul–Sep
BOD, carbonaceous [5 day, 20 C]monthly averagereport only (mg/L)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 18 lb/dOct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 62 lb/dOct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 31 lb/dOct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 62 lb/dOct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]weekly average≤ 40 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 230 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]weekly average≤ 47 lb/dMay–Oct
BOD, carb-5 day, 20 deg C, percent removalmonthly average minimum≥ 85 %all year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year

How strict are these limits?

Cited limits by parameter: Oregon'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/OR0020435 · MCP: https://passage-data.com/mcp