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

NPDES permit AZ0025071 · Major NON-POTW · effective, expires 2029-09-09 · EPA's file as of 2026-09-19

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: Chlorine, total residual (16), Cyanide, total [as CN] (7), E. coli, colony forming units [CFU] (4).

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among AZ permits in EPA's filings — check your permit).

Limits in force (166)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	MO AVG	report only	all year
001	Temperature, water deg. centigrade	DAILY MX	report only	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
001	BOD, 5-day, 20 deg. C	MO AVG	<= 680 kg/d	all year
001	BOD, 5-day, 20 deg. C	WKLY AVG	<= 1020 kg/d	all year
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	MO AVG	<= 30 mg/L	all year
001	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
001	Solids, total suspended	MO AVG	<= 170.3 kg/d	all year
001	Solids, total suspended	WKLY AVG	<= 255.5 kg/d	all year
001	Oil & Grease	MO AVG	<= 10 ug/L	all year
001	Oil & Grease	DAILY MX	<= 15 ug/L	all year
001	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
001	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
001	Nitrogen, ammonia total [as N]	MO AVG	<= 1 Ratio	all year
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 2 Ratio	all year
001	Cyanide, total [as CN]	MO AVG	<= 5.8 ug/L	all year
001	Cyanide, total [as CN]	DAILY MX	<= 17 ug/L	all year
001	Cyanide, total [as CN]	MO AVG	<= 130 g/d	all year
001	Cyanide, total [as CN]	DAILY MX	<= 390 g/d	all year
001	Sulfide, total [as S]	MO AVG	report only	all year
001	Sulfide, total [as S]	DAILY MX	report only	all year
001	Selenium, total recoverable	MO AVG	<= 2 ug/L	all year
001	Selenium, total recoverable	DAILY MX	<= 3 ug/L	all year
001	Selenium, total recoverable	MO AVG	<= 40 g/d	all year
001	Selenium, total recoverable	DAILY MX	<= 70 g/d	all year
001	Chromium, total [as Cr]	MO AVG	report only	all year
001	Chromium, total [as Cr]	DAILY MX	report only	all year
001	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 8 ug/L	all year
001	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 16 ug/L	all year
001	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 180 g/d	all year
001	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 360 g/d	all year
001	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	MO AVG	<= 9 ug/L	all year
001	Chlorine, total residual	DAILY MX	<= 18 ug/L	all year
001	Chlorine, total residual	MO AVG	<= 105 g/d	all year
001	Chlorine, total residual	DAILY MX	<= 410 g/d	all year
001	E. coli, colony forming units [CFU]	MO AVG	<= 126 CFU/100mL	all year
001	E. coli, colony forming units [CFU]	DAILY MX	<= 575 CFU/100mL	all year
001	Hydrogen sulfide	MO AVG	report only	all year
001	Hydrogen sulfide	DAILY MX	report only	all year
001	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
001	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	MO MED	report only	all year
001	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	DAILY MX	report only	all year
001	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	MO MED	report only	all year
001	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	DAILY MX	report only	all year
001	TU Static Renewal 7-Day Chronic Pimphales promelas	MO MED	report only	all year
001	TU Static Renewal 7-Day Chronic Pimphales promelas	DAILY MX	report only	all year
002	Temperature, water deg. centigrade	MO AVG	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
002	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
002	BOD, 5-day, 20 deg. C	MO AVG	<= 680 kg/d	all year
002	BOD, 5-day, 20 deg. C	WKLY AVG	<= 1020 kg/d	all year
002	pH	MINIMUM	>= 6.5 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	MO AVG	<= 30 mg/L	all year
002	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
002	Solids, total suspended	MO AVG	<= 170.3 kg/d	all year
002	Solids, total suspended	WKLY AVG	<= 255.5 kg/d	all year
002	Oil & Grease	MO AVG	<= 10 ug/L	all year
002	Oil & Grease	DAILY MX	<= 15 ug/L	all year
002	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	MO AVG	<= 1 Ratio	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 2 Ratio	all year
002	Cyanide, total [as CN]	MO AVG	<= 5.8 ug/L	all year
002	Cyanide, total [as CN]	DAILY MX	<= 17 ug/L	all year
002	Cyanide, total [as CN]	MO AVG	<= 130 g/d	all year
002	Cyanide, total [as CN]	DAILY MX	<= 390 g/d	all year
002	Sulfide, total [as S]	MO AVG	report only	all year
002	Sulfide, total [as S]	DAILY MX	report only	all year
002	Selenium, total recoverable	MO AVG	<= 2 ug/L	all year
002	Selenium, total recoverable	DAILY MX	<= 3 ug/L	all year
002	Selenium, total recoverable	MO AVG	<= 40 g/d	all year
002	Selenium, total recoverable	DAILY MX	<= 70 g/d	all year
002	Chromium, total [as Cr]	MO AVG	report only	all year
002	Chromium, total [as Cr]	DAILY MX	report only	all year
002	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 8 ug/L	all year
002	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 16 ug/L	all year
002	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 180 g/d	all year
002	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 360 g/d	all year
002	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	MO AVG	<= 9 ug/L	all year
002	Chlorine, total residual	DAILY MX	<= 18 ug/L	all year
002	Chlorine, total residual	MO AVG	<= 105 g/d	all year
002	Chlorine, total residual	DAILY MX	<= 410 g/d	all year
002	E. coli, colony forming units [CFU]	MO AVG	<= 126 CFU/100mL	all year
002	E. coli, colony forming units [CFU]	DAILY MX	<= 575 CFU/100mL	all year
002	Hydrogen sulfide	MO AVG	report only	all year
002	Hydrogen sulfide	DAILY MX	report only	all year
002	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
002	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
002	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	MO MED	report only	all year
002	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	DAILY MX	report only	all year
002	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	MO MED	report only	all year
002	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	DAILY MX	report only	all year
002	TU Static Renewal 7-Day Chronic Pimphales promelas	MO MED	report only	all year
002	TU Static Renewal 7-Day Chronic Pimphales promelas	DAILY MX	report only	all year
003	Temperature, water deg. centigrade	MO AVG	report only	all year
003	Temperature, water deg. centigrade	DAILY MX	report only	all year
003	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
003	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
003	BOD, 5-day, 20 deg. C	MO AVG	<= 680 kg/d	all year
003	BOD, 5-day, 20 deg. C	WKLY AVG	<= 1020 kg/d	all year
003	pH	MINIMUM	>= 6.5 SU	all year
003	pH	MAXIMUM	<= 9 SU	all year
003	Solids, total suspended	MO AVG	<= 30 mg/L	all year
003	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
003	Solids, total suspended	MO AVG	<= 170.3 kg/d	all year
003	Solids, total suspended	WKLY AVG	<= 255.5 kg/d	all year
003	Oil & Grease	MO AVG	<= 10 ug/L	all year
003	Oil & Grease	DAILY MX	<= 15 ug/L	all year
003	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
003	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
003	Nitrogen, ammonia total [as N]	MO AVG	<= 1 Ratio	all year
003	Nitrogen, ammonia total [as N]	DAILY MX	<= 2 Ratio	all year
003	Cyanide, total [as CN]	MO AVG	<= 5.8 ug/L	all year
003	Cyanide, total [as CN]	DAILY MX	<= 17 ug/L	all year
003	Cyanide, total [as CN]	MO AVG	<= 130 g/d	all year
003	Cyanide, total [as CN]	DAILY MX	<= 390 g/d	all year
003	Sulfide, total [as S]	MO AVG	report only	all year
003	Sulfide, total [as S]	DAILY MX	report only	all year
003	Selenium, total recoverable	MO AVG	<= 2 ug/L	all year
003	Selenium, total recoverable	DAILY MX	<= 3 ug/L	all year
003	Selenium, total recoverable	MO AVG	<= 40 g/d	all year
003	Selenium, total recoverable	DAILY MX	<= 70 g/d	all year
003	Chromium, total [as Cr]	MO AVG	report only	all year
003	Chromium, total [as Cr]	DAILY MX	report only	all year
003	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 8 ug/L	all year
003	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 16 ug/L	all year
003	Chromium, hexavalent dissolved [as Cr]	MO AVG	<= 180 g/d	all year
003	Chromium, hexavalent dissolved [as Cr]	DAILY MX	<= 360 g/d	all year
003	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
003	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
003	Chlorine, total residual	MO AVG	<= 9 ug/L	all year
003	Chlorine, total residual	DAILY MX	<= 18 ug/L	all year
003	Chlorine, total residual	MO AVG	<= 105 g/d	all year
003	Chlorine, total residual	DAILY MX	<= 410 g/d	all year
003	E. coli, colony forming units [CFU]	MO AVG	<= 126 CFU/100mL	all year
003	E. coli, colony forming units [CFU]	DAILY MX	<= 575 CFU/100mL	all year
003	Hydrogen sulfide	MO AVG	report only	all year
003	Hydrogen sulfide	DAILY MX	report only	all year
003	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
003	Solids, suspended percent removal	MO AV MN	>= 85 %	all year
003	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	MO MED	report only	all year
003	TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	DAILY MX	report only	all year
003	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	MO MED	report only	all year
003	TU Static Renewal 7-Day Chronic Ceriodaphnia dubia	DAILY MX	report only	all year
003	TU Static Renewal 7-Day Chronic Pimphales promelas	MO MED	report only	all year
003	TU Static Renewal 7-Day Chronic Pimphales promelas	DAILY MX	report only	all year
INF	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
INF	BOD, 5-day, 20 deg. C	WKLY AVG	report only	all year
INF	Solids, total suspended	MO AVG	report only	all year
INF	Solids, total suspended	WKLY AVG	report only	all year