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City Of Yuma

Sewage treatment plant, Yuma, Arizona. NPDES permit AZ0025411, in force until May 31, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 30 days after each period: form A monthly (12 values), form Q quarterly (22 values), form S twice a year, form Y yearly
Renewal application due
Dec 2, 2026 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 19 reports late

Limits in force (74)

ParameterStatisticLimitMonths
Temperature, water deg. centigradedaily maximumreport only (deg C)all year
Oxygen, dissolved [DO]daily maximumreport only (mg/L)all year
pHminimumreport only (SU)all year
pHminimum≥ 6.5 SUall year
pHmaximumreport only (SU)all year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 20 mg/Lall year
Solids, total suspendedweekly average≤ 40 mg/Lall year
Solids, total suspendeddaily maximumreport only (mg/L)all year
Solids, total suspendedmonthly average≤ 51 kg/dall year
Solids, total suspendedweekly average≤ 103 kg/dall year
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (ug/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (mg/L)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (ug/L)all year
Nitrogen, Kjeldahl, total [as N]monthly averagereport only (g/d)all year
Nitrogen, Kjeldahl, total [as N]daily maximumreport only (g/d)all year
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (ug/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (ug/L)all year
Phosphorus, total [as P]monthly averagereport only (g/d)all year
Phosphorus, total [as P]daily maximumreport only (g/d)all year
Cyanide, total [as CN]monthly averagereport only (ug/L)all year
Cyanide, total [as CN]daily maximumreport only (ug/L)all year
Cyanide, total [as CN]daily maximumreport only (ug/L)all year
Sulfide, total [as S]monthly averagereport only (ug/L)all year
Sulfide, total [as S]daily maximumreport only (ug/L)all year
Hardness, total [as CaCO3]monthly averagereport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Hardness, total [as CaCO3]daily maximumreport only (mg/L)all year
Arsenic, total recoverablemonthly average≤ 10 ug/Lall year
Arsenic, total recoverabledaily maximum≤ 15 ug/Lall year
Arsenic, total recoverabledaily maximumreport only (ug/L)all year
Arsenic, total recoverablemonthly average≤ 26 g/dall year
Arsenic, total recoverabledaily maximum≤ 38 g/dall year
Iron, total recoverabledaily maximumreport only (ug/L)all year
Selenium, total recoverablemonthly average≤ 1.8 ug/Lall year
Selenium, total recoverabledaily maximumreport only (ug/L)all year
Selenium, total recoverabledaily maximum≤ 3.6 ug/Lall year
Selenium, total recoverablemonthly average≤ 4.6 g/dall year
Selenium, total recoverabledaily maximum≤ 9.3 g/dall year
Thallium, total recoverabledaily maximumreport only (ug/L)all year
Beryllium, total recoverable [as Be]daily maximumreport only (ug/L)all year
Nickel, total recoverabledaily maximumreport only (ug/L)all year
Silver total recoverabledaily maximumreport only (ug/L)all year
Zinc, total recoverabledaily maximumreport only (ug/L)all year
Cadmium, total recoverabledaily maximumreport only (ug/L)all year
Lead, total recoverabledaily maximumreport only (ug/L)all year
Chromium, total recoverabledaily maximumreport only (ug/L)all year
Copper, total recoverabledaily maximumreport only (ug/L)all year
Chromium, hexavalent dissolved [as Cr]daily maximumreport only (ug/L)all year
Antimony, total recoverabledaily maximumreport only (ug/L)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
Chlorine, total residualmonthly average≤ 20 ug/Lall year
Chlorine, total residualdaily maximum≤ 33 ug/Lall year
Chlorine, total residualdaily maximumreport only (ug/L)all year
Chlorine, total residualmonthly average≤ 51 g/dall year
Chlorine, total residualdaily maximum≤ 85 g/dall year
Hydrogen sulfidemonthly averagereport only (ug/L)all year
Hydrogen sulfidedaily maximumreport only (ug/L)all year
Mercury, total recoverablemonthly average≤ .01 ug/Lall year
Mercury, total recoverabledaily maximum≤ .02 ug/Lall year
Mercury, total recoverabledaily maximumreport only (ug/L)all year
Mercury, total recoverablemonthly average≤ .03 g/dall year
Mercury, total recoverabledaily maximum≤ .05 g/dall year
Alpha gross radioactivitydaily maximum≤ 15 pCi/Lall year
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)monthly medianreport only (tox chronic)all year
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)daily maximumreport only (tox chronic)all year
Static 7Day Chronic Pimephales Promelasmonthly medianreport only (tox chronic)all year
Static 7Day Chronic Pimephales Promelasdaily maximumreport only (tox chronic)all year
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiamonthly medianreport only (tox chronic)all year
TU Static Renewal 7-Day Chronic Ceriodaphnia dubiadaily maximumreport only (tox chronic)all year

How strict are these limits?

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

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/AZ0025411 · MCP: https://passage-data.com/mcp