Global Water - Palo Verde Utilities Company, Inc. — NPDES permit AZ0025071: limits, due date and EPA's record

Sewerage Systems, major discharger, Maricopa, Arizona. NPDES permit AZ0025071, in force until Sep 9, 2029. Last 12 months: over a limit 33 times (last June 2026), 4 required values missing. Source: EPA ECHO, Oct 22, 2026.

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

Limits in force (166)

Period ending	Outfall	Parameter	Reported	Limit	Over by
January 2026	002	Nitrogen, ammonia total [as N], daily maximum	4.8 Ratio	≤ 2 Ratio	140%
January 2026	002	Nitrogen, ammonia total [as N], monthly average	2.3 Ratio	≤ 1 Ratio	130%
February 2026	001	Chlorine, total residual, daily maximum	865 ug/L	≤ 18 ug/L	4706%
February 2026	001	Chlorine, total residual, daily maximum	9514.3 g/d	≤ 410 g/d	2221%
February 2026	001	Chlorine, total residual, monthly average	865 ug/L	≤ 9 ug/L	9511%
February 2026	001	Chlorine, total residual, monthly average	9514.3 g/d	≤ 105 g/d	8961%
February 2026	001	Cyanide, total [as CN], monthly average	14 ug/L	≤ 5.8 ug/L	141%
February 2026	001	Cyanide, total [as CN], monthly average	154 g/d	≤ 130 g/d	18%
February 2026	001	E. coli, colony forming units [CFU], daily maximum	2419.6 CFU/100mL	≤ 575 CFU/100mL	321%
February 2026	001	E. coli, colony forming units [CFU], monthly average	2419.6 CFU/100mL	≤ 126 CFU/100mL	1820%
February 2026	001	Solids, total suspended, monthly average	214.5 kg/d	≤ 170.3 kg/d	26%
February 2026	002	Chlorine, total residual, daily maximum	1378 ug/L	≤ 18 ug/L	7556%
February 2026	002	Chlorine, total residual, daily maximum	23726 g/d	≤ 410 g/d	5687%
February 2026	002	Chlorine, total residual, monthly average	464 ug/L	≤ 9 ug/L	5056%
February 2026	002	Chlorine, total residual, monthly average	5347 g/d	≤ 105 g/d	4992%
February 2026	002	Cyanide, total [as CN], monthly average	14 ug/L	≤ 5.8 ug/L	141%
February 2026	002	Cyanide, total [as CN], monthly average	161 g/d	≤ 130 g/d	24%
February 2026	002	E. coli, colony forming units [CFU], daily maximum	2419.6 CFU/100mL	≤ 575 CFU/100mL	321%
February 2026	002	Solids, total suspended, monthly average	224.5 kg/d	≤ 170.3 kg/d	32%
February 2026	003	Chlorine, total residual, daily maximum	1365 ug/L	≤ 18 ug/L	7483%
February 2026	003	Chlorine, total residual, daily maximum	26706 g/d	≤ 410 g/d	6414%
February 2026	003	Chlorine, total residual, monthly average	12407 g/d	≤ 105 g/d	11716%
February 2026	003	Chlorine, total residual, monthly average	716 ug/L	≤ 9 ug/L	7856%
February 2026	003	Cyanide, total [as CN], monthly average	14 ug/L	≤ 5.8 ug/L	141%
February 2026	003	Cyanide, total [as CN], monthly average	243 g/d	≤ 130 g/d	87%
February 2026	003	Solids, total suspended, monthly average	337.9 kg/d	≤ 170.3 kg/d	98%
February 2026	003	Solids, total suspended, weekly average	337.9 kg/d	≤ 255.5 kg/d	32%
March 2026	001	Chlorine, total residual, daily maximum	16014 g/d	≤ 410 g/d	3806%
March 2026	001	Chlorine, total residual, daily maximum	884 ug/L	≤ 18 ug/L	4811%
March 2026	001	Chlorine, total residual, monthly average	69 ug/L	≤ 9 ug/L	667%
March 2026	001	Chlorine, total residual, monthly average	934.6 g/d	≤ 105 g/d	790%
March 2026	001	E. coli, colony forming units [CFU], daily maximum	2419.6 CFU/100mL	≤ 575 CFU/100mL	321%
June 2026	001	Cyanide, total [as CN], monthly average	6 ug/L	≤ 5.8 ug/L	3%

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
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	≤ 680 kg/d	all year	001
BOD, 5-day, 20 deg. C	weekly average	≤ 1020 kg/d	all year	001
pH	minimum	≥ 6.5 SU	all year	001
pH	maximum	≤ 9 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	≤ 170.3 kg/d	all year	001
Solids, total suspended	weekly average	≤ 255.5 kg/d	all year	001
Oil & Grease	monthly average	≤ 10 ug/L	all year	001
Oil & Grease	daily maximum	≤ 15 ug/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	report only (g/d)	all year	001
Nitrogen, ammonia total [as N]	daily maximum	report only (g/d)	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	≤ 5.8 ug/L	all year	001
Cyanide, total [as CN]	daily maximum	≤ 17 ug/L	all year	001
Cyanide, total [as CN]	monthly average	≤ 130 g/d	all year	001
Cyanide, total [as CN]	daily maximum	≤ 390 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
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	≤ 40 g/d	all year	001
Selenium, total recoverable	daily maximum	≤ 70 g/d	all year	001
Chromium, total [as Cr]	monthly average	report only (ug/L)	all year	001
Chromium, total [as Cr]	daily maximum	report only (ug/L)	all year	001
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 8 ug/L	all year	001
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 16 ug/L	all year	001
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 180 g/d	all year	001
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 360 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	≤ 105 g/d	all year	001
Chlorine, total residual	daily maximum	≤ 410 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	≤ 575 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
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	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
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	≤ 680 kg/d	all year	002
BOD, 5-day, 20 deg. C	weekly average	≤ 1020 kg/d	all year	002
pH	minimum	≥ 6.5 SU	all year	002
pH	maximum	≤ 9 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	≤ 170.3 kg/d	all year	002
Solids, total suspended	weekly average	≤ 255.5 kg/d	all year	002
Oil & Grease	monthly average	≤ 10 ug/L	all year	002
Oil & Grease	daily maximum	≤ 15 ug/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	report only (g/d)	all year	002
Nitrogen, ammonia total [as N]	daily maximum	report only (g/d)	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	≤ 5.8 ug/L	all year	002
Cyanide, total [as CN]	daily maximum	≤ 17 ug/L	all year	002
Cyanide, total [as CN]	monthly average	≤ 130 g/d	all year	002
Cyanide, total [as CN]	daily maximum	≤ 390 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
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	≤ 40 g/d	all year	002
Selenium, total recoverable	daily maximum	≤ 70 g/d	all year	002
Chromium, total [as Cr]	monthly average	report only (ug/L)	all year	002
Chromium, total [as Cr]	daily maximum	report only (ug/L)	all year	002
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 8 ug/L	all year	002
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 16 ug/L	all year	002
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 180 g/d	all year	002
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 360 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	≤ 105 g/d	all year	002
Chlorine, total residual	daily maximum	≤ 410 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	≤ 575 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
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	002
Solids, suspended percent removal	monthly average minimum	≥ 85 %	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
Temperature, water deg. centigrade	monthly average	report only (deg C)	all year	003
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	003
BOD, 5-day, 20 deg. C	monthly average	≤ 30 mg/L	all year	003
BOD, 5-day, 20 deg. C	weekly average	≤ 45 mg/L	all year	003
BOD, 5-day, 20 deg. C	monthly average	≤ 680 kg/d	all year	003
BOD, 5-day, 20 deg. C	weekly average	≤ 1020 kg/d	all year	003
pH	minimum	≥ 6.5 SU	all year	003
pH	maximum	≤ 9 SU	all year	003
Solids, total suspended	monthly average	≤ 30 mg/L	all year	003
Solids, total suspended	weekly average	≤ 45 mg/L	all year	003
Solids, total suspended	monthly average	≤ 170.3 kg/d	all year	003
Solids, total suspended	weekly average	≤ 255.5 kg/d	all year	003
Oil & Grease	monthly average	≤ 10 ug/L	all year	003
Oil & Grease	daily maximum	≤ 15 ug/L	all year	003
Nitrogen, ammonia total [as N]	monthly average	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	all year	003
Nitrogen, ammonia total [as N]	monthly average	report only (g/d)	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (g/d)	all year	003
Nitrogen, ammonia total [as N]	monthly average	≤ 1 Ratio	all year	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 2 Ratio	all year	003
Cyanide, total [as CN]	monthly average	≤ 5.8 ug/L	all year	003
Cyanide, total [as CN]	daily maximum	≤ 17 ug/L	all year	003
Cyanide, total [as CN]	monthly average	≤ 130 g/d	all year	003
Cyanide, total [as CN]	daily maximum	≤ 390 g/d	all year	003
Sulfide, total [as S]	monthly average	report only (ug/L)	all year	003
Sulfide, total [as S]	daily maximum	report only (ug/L)	all year	003
Selenium, total recoverable	monthly average	≤ 2 ug/L	all year	003
Selenium, total recoverable	daily maximum	≤ 3 ug/L	all year	003
Selenium, total recoverable	monthly average	≤ 40 g/d	all year	003
Selenium, total recoverable	daily maximum	≤ 70 g/d	all year	003
Chromium, total [as Cr]	monthly average	report only (ug/L)	all year	003
Chromium, total [as Cr]	daily maximum	report only (ug/L)	all year	003
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 8 ug/L	all year	003
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 16 ug/L	all year	003
Chromium, hexavalent dissolved [as Cr]	monthly average	≤ 180 g/d	all year	003
Chromium, hexavalent dissolved [as Cr]	daily maximum	≤ 360 g/d	all year	003
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	003
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	003
Chlorine, total residual	monthly average	≤ 9 ug/L	all year	003
Chlorine, total residual	daily maximum	≤ 18 ug/L	all year	003
Chlorine, total residual	monthly average	≤ 105 g/d	all year	003
Chlorine, total residual	daily maximum	≤ 410 g/d	all year	003
E. coli, colony forming units [CFU]	monthly average	≤ 126 CFU/100mL	all year	003
E. coli, colony forming units [CFU]	daily maximum	≤ 575 CFU/100mL	all year	003
Hydrogen sulfide	monthly average	report only (ug/L)	all year	003
Hydrogen sulfide	daily maximum	report only (ug/L)	all year	003
BOD, 5-day, percent removal	monthly average minimum	≥ 85 %	all year	003
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	003
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	monthly median	report only (tox chronic)	all year	003
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	daily maximum	report only (tox chronic)	all year	003
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	monthly median	report only (tox chronic)	all year	003
TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	daily maximum	report only (tox chronic)	all year	003
TU Static Renewal 7-Day Chronic Pimphales promelas	monthly median	report only (tox chronic)	all year	003
TU Static Renewal 7-Day Chronic Pimphales promelas	daily maximum	report only (tox chronic)	all year	003
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/AZ0025071 · MCP: https://passage-data.com/mcp