Town Of Cave Creek — NPDES permit AZ0025828: limits, due date and EPA's record

Sewage treatment plant, Cave Creek, Arizona. NPDES permit AZ0025828, in force until Oct 15, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (152)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. centigrade	monthly average	report only (deg C)	all year	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	001
Temperature, water deg. centigrade	monthly average	report only (deg C)	all year	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	001
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	001
BOD, 5-day, 20 deg. C	monthly average	≤ 75 kg/d	all year	001
BOD, 5-day, 20 deg. C	weekly average	≤ 110 kg/d	all year	001
pH	minimum	report only (SU)	all year	001
pH	maximum	report only (SU)	all year	001
pH	minimum	report only (SU)	all year	001
pH	maximum	report only (SU)	all year	001
Solids, total suspended	monthly average	≤ 30 mg/L	all year	001
Solids, total suspended	weekly average	≤ 45 mg/L	all year	001
Solids, total suspended	monthly average	≤ 75 kg/d	all year	001
Solids, total suspended	weekly average	≤ 110 kg/d	all year	001
Oil & Grease	monthly average	report only (mg/L)	all year	001
Oil & Grease	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	monthly average	≤ 1 Ratio	all year	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 2 Ratio	all year	001
Cyanide, total [as CN]	monthly average	≤ 7.9 ug/L	all year	001
Cyanide, total [as CN]	daily maximum	≤ 16 ug/L	all year	001
Cyanide, total [as CN]	monthly average	≤ 20 g/d	all year	001
Cyanide, total [as CN]	daily maximum	≤ 40 g/d	all year	001
Sulfide, total [as S]	monthly average	report only (ug/L)	all year	001
Sulfide, total [as S]	daily maximum	report only (ug/L)	all year	001
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	001
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	001
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	001
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	001
Selenium, total recoverable	monthly average	≤ 2 ug/L	all year	001
Selenium, total recoverable	daily maximum	≤ 3 ug/L	all year	001
Selenium, total recoverable	monthly average	≤ 4 g/d	all year	001
Selenium, total recoverable	daily maximum	≤ 8 g/d	all year	001
Zinc, total recoverable	monthly average	≤ 130 ug/L	all year	001
Zinc, total recoverable	daily maximum	≤ 290 ug/L	all year	001
Zinc, total recoverable	monthly average	≤ 320 g/d	all year	001
Zinc, total recoverable	daily maximum	≤ 730 g/d	all year	001
Copper, total recoverable	monthly average	≤ 11 ug/L	all year	001
Copper, total recoverable	daily maximum	≤ 37 ug/L	all year	001
Copper, total recoverable	monthly average	≤ 28 g/d	all year	001
Copper, total recoverable	daily maximum	≤ 91 g/d	all year	001
Dichlorobromomethane	monthly average	≤ 17 ug/L	all year	001
Dichlorobromomethane	daily maximum	≤ 34 ug/L	all year	001
Dichlorobromomethane	monthly average	≤ 42 g/d	all year	001
Dichlorobromomethane	daily maximum	≤ 85 g/d	all year	001
Dibromochloromethane	monthly average	≤ 13 ug/L	all year	001
Dibromochloromethane	daily maximum	≤ 26 ug/L	all year	001
Dibromochloromethane	monthly average	≤ 32 g/d	all year	001
Dibromochloromethane	daily maximum	≤ 65 g/d	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	monthly average	≤ 9 ug/L	all year	001
Chlorine, total residual	daily maximum	≤ 18 ug/L	all year	001
Chlorine, total residual	monthly average	≤ 22 g/d	all year	001
Chlorine, total residual	daily maximum	≤ 45 g/d	all year	001
E. coli, colony forming units [CFU]	monthly average	≤ 126 CFU/100mL	all year	001
E. coli, colony forming units [CFU]	daily maximum	≤ 235 CFU/100mL	all year	001
Hydrogen sulfide	monthly average	report only (ug/L)	all year	001
Hydrogen sulfide	daily maximum	report only (ug/L)	all year	001
Mercury, total recoverable	monthly average	report only (ug/L)	all year	001
Mercury, total recoverable	daily maximum	report only (ug/L)	all year	001
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	001
Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia	monthly median	report only (pass=0;fail=1)	all year	001
Pass/Fail Static 96 Hr Acute Pimephales Promelas	monthly median	report only (pass=0;fail=1)	all year	001
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	monthly median	report only (tox chronic)	all year	001
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	daily maximum	report only (tox chronic)	all year	001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	monthly median	report only (tox chronic)	all year	001
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	daily maximum	report only (tox chronic)	all year	001
TU Static Renewal 7-Day Chronic Pimphales promelas	monthly median	report only (tox chronic)	all year	001
TU Static Renewal 7-Day Chronic Pimphales promelas	daily maximum	report only (tox chronic)	all year	001
Temperature, water deg. centigrade	monthly average	report only (deg C)	all year	002
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	002
Temperature, water deg. centigrade	monthly average	report only (deg C)	all year	002
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	002
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	002
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	002
BOD, 5-day, 20 deg. C	monthly average	≤ 75 kg/d	all year	002
BOD, 5-day, 20 deg. C	weekly average	≤ 110 kg/d	all year	002
pH	minimum	report only (SU)	all year	002
pH	maximum	report only (SU)	all year	002
pH	minimum	report only (SU)	all year	002
pH	maximum	report only (SU)	all year	002
Solids, total suspended	monthly average	≤ 30 mg/L	all year	002
Solids, total suspended	weekly average	≤ 45 mg/L	all year	002
Solids, total suspended	monthly average	≤ 75 kg/d	all year	002
Solids, total suspended	weekly average	≤ 110 kg/d	all year	002
Oil & Grease	monthly average	report only (mg/L)	all year	002
Oil & Grease	daily maximum	report only (mg/L)	all year	002
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	002
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	002
Nitrogen, ammonia total [as N]	monthly average	≤ 1 Ratio	all year	002
Nitrogen, ammonia total [as N]	daily maximum	≤ 2 Ratio	all year	002
Cyanide, total [as CN]	monthly average	≤ 7.9 ug/L	all year	002
Cyanide, total [as CN]	daily maximum	≤ 16 ug/L	all year	002
Cyanide, total [as CN]	monthly average	≤ 20 g/d	all year	002
Cyanide, total [as CN]	daily maximum	≤ 40 g/d	all year	002
Sulfide, total [as S]	monthly average	report only (ug/L)	all year	002
Sulfide, total [as S]	daily maximum	report only (ug/L)	all year	002
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	002
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	002
Hardness, total [as CaCO3]	monthly average	report only (mg/L)	all year	002
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	002
Selenium, total recoverable	monthly average	≤ 2 ug/L	all year	002
Selenium, total recoverable	daily maximum	≤ 3 ug/L	all year	002
Selenium, total recoverable	monthly average	≤ 4 g/d	all year	002
Selenium, total recoverable	daily maximum	≤ 8 g/d	all year	002
Zinc, total recoverable	monthly average	≤ 130 ug/L	all year	002
Zinc, total recoverable	daily maximum	≤ 290 ug/L	all year	002
Zinc, total recoverable	monthly average	≤ 320 g/d	all year	002
Zinc, total recoverable	daily maximum	≤ 730 g/d	all year	002
Copper, total recoverable	monthly average	≤ 11 ug/L	all year	002
Copper, total recoverable	daily maximum	≤ 37 ug/L	all year	002
Copper, total recoverable	monthly average	≤ 28 g/d	all year	002
Copper, total recoverable	daily maximum	≤ 91 g/d	all year	002
Dichlorobromomethane	monthly average	≤ 17 ug/L	all year	002
Dichlorobromomethane	daily maximum	≤ 34 ug/L	all year	002
Dichlorobromomethane	monthly average	≤ 42 g/d	all year	002
Dichlorobromomethane	daily maximum	≤ 85 g/d	all year	002
Dibromochloromethane	monthly average	≤ 13 ug/L	all year	002
Dibromochloromethane	daily maximum	≤ 26 ug/L	all year	002
Dibromochloromethane	monthly average	≤ 32 g/d	all year	002
Dibromochloromethane	daily maximum	≤ 65 g/d	all year	002
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	002
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	002
Chlorine, total residual	monthly average	≤ 9 ug/L	all year	002
Chlorine, total residual	daily maximum	≤ 18 ug/L	all year	002
Chlorine, total residual	monthly average	≤ 22 g/d	all year	002
Chlorine, total residual	daily maximum	≤ 45 g/d	all year	002
E. coli, colony forming units [CFU]	monthly average	≤ 126 CFU/100mL	all year	002
E. coli, colony forming units [CFU]	daily maximum	≤ 235 CFU/100mL	all year	002
Hydrogen sulfide	monthly average	report only (ug/L)	all year	002
Hydrogen sulfide	daily maximum	report only (ug/L)	all year	002
Mercury, total recoverable	monthly average	report only (ug/L)	all year	002
Mercury, total recoverable	daily maximum	report only (ug/L)	all year	002
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	002
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	002
Pass/Fail Static 96Hr Acute Ceriodaphnia Dubia	monthly median	report only (pass=0;fail=1)	all year	002
Pass/Fail Static 96 Hr Acute Pimephales Promelas	monthly median	report only (pass=0;fail=1)	all year	002
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	monthly median	report only (tox chronic)	all year	002
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	daily maximum	report only (tox chronic)	all year	002
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	monthly median	report only (tox chronic)	all year	002
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	daily maximum	report only (tox chronic)	all year	002
TU Static Renewal 7-Day Chronic Pimphales promelas	monthly median	report only (tox chronic)	all year	002
TU Static Renewal 7-Day Chronic Pimphales promelas	daily maximum	report only (tox chronic)	all year	002
BOD, 5-day, 20 deg. C	monthly average	report only (mg/L)	all year	INF
BOD, 5-day, 20 deg. C	weekly average	report only (mg/L)	all year	INF
Solids, total suspended	monthly average	report only (mg/L)	all year	INF
Solids, total suspended	weekly average	report only (mg/L)	all year	INF

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/AZ0025828 · MCP: https://passage-data.com/mcp