Clean Water Act discharge permit · NPDES AZ0020117

NORTHERN GILA COUNTY SANITARY DISTRICT - AMERICAN GULCH, Payson, AZ: NPDES AZ0020117 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MajorDischarger class
176Pollutants under a numeric limit
8Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

NORTHERN GILA COUNTY SANITARY DISTRICT - AMERICAN GULCH, held by Northern Gila County Sanitary District - Dba Green Valley Water, holds NPDES permit AZ0020117. EPA’s file records it issued June 6, 2017 and expiring June 5, 2022.

NORTHERN GILA COUNTY SANITARY DISTRICT - AMERICAN GULCH, Payson, Arizona: Individual permit AZ0020117, held by Northern Gila County Sanitary District - Dba Green Valley Water; Publicly owned treatment works; Effective; issued June 6, 2017, term to June 5, 2022.

Zinc, total recoverable: 2 limits, 12 violations of any kind, 10 effluent exceedances, latest December 31, 2016, largest 112% over the limit.
Phosphorus, total [as P]: 2 limits, 63 violations of any kind, 6 effluent exceedances, latest August 31, 2016, largest 70% over the limit.
Nitrogen, total [as N]: 0 limits, 61 violations of any kind, 6 effluent exceedances, latest February 29, 2016, largest 122% over the limit.
Copper, total recoverable: 10 limits, 8 violations of any kind, 6 effluent exceedances, latest December 31, 2022, largest 13% over the limit.
Nitrogen, ammonia total [as N]: 6 limits, 6 violations of any kind, 4 effluent exceedances, latest April 30, 2019, largest 60% over the limit.
Oil & Grease: 6 limits, 7 violations of any kind, 3 effluent exceedances, latest June 30, 2006, largest 3,400% over the limit.
Solids, total suspended: 12 limits, 48 violations of any kind, 2 effluent exceedances, latest January 31, 2006, largest 757% over the limit.
BOD, 5-day, 20 deg. C: 12 limits, 47 violations of any kind, 1 effluent exceedance, latest October 31, 2014, largest 62% over the limit.
Chlorine, total residual: 10 limits, 84 violations of any kind, 0 effluent exceedances.
pH: 8 limits, 24 violations of any kind, 0 effluent exceedances.
E. coli, colony forming units [CFU]: 6 limits, 24 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 4 limits, 24 violations of any kind, 0 effluent exceedances.
Static 7Day Chronic Pimephales Promelas: 0 limits, 8 violations of any kind, 0 effluent exceedances.
Selenium, total recoverable: 10 limits, 6 violations of any kind, 0 effluent exceedances.
Mercury, total recoverable: 10 limits, 6 violations of any kind, 0 effluent exceedances.
Cyanide, total [as CN]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Cadmium, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Lead, total recoverable: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Chloroform: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Diethyl phthalate: 2 limits, 6 violations of any kind, 0 effluent exceedances.
Di[2-ethylhexyl] phthalate [DEHP]: 2 limits, 6 violations of any kind, 0 effluent exceedances.
TU Static 7Day Chronic Ceriodaphnia dubia: 0 limits, 6 violations of any kind, 0 effluent exceedances.
Sulfide, total [as S]: 6 limits, 5 violations of any kind, 0 effluent exceedances.
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum): 4 limits, 4 violations of any kind, 0 effluent exceedances.
Chromium, hexavalent dissolved [as Cr]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
Zinc, total [as Zn]: 0 limits, 4 violations of any kind, 0 effluent exceedances.
2-Chloronaphthalene: 2 limits, 3 violations of any kind, 0 effluent exceedances.
Temperature, water deg. centigrade: 6 limits, 2 violations of any kind, 0 effluent exceedances.
Oxygen, dissolved [DO]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrogen, Kjeldahl, total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Arsenic, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Thallium, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Beryllium, total recoverable [as Be]: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Nickel, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Silver total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Antimony, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
2-Methyl-4,6-dinitrophenol: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Diquat: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Dichlorobromomethane: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Carbon tetrachloride: 2 limits, 2 violations of any kind, 0 effluent exceedances.
1,2-Dichloroethane: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Bromoform: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Dibromochloromethane: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Toluene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Benzene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Acenaphthylene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Acenaphthene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Acrolein: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Acrylonitrile: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Anthracene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Benzo[b]fluoranthene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Benzo[k]fluoranthene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Benzo[a]pyrene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Bis[2-chloroethyl] ether: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Bis[2-chloroethoxy]methane: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Bis[2-chloroisopropyl] ether: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Butyl benzyl phthalate: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Chlorobenzene: 2 limits, 2 violations of any kind, 0 effluent exceedances.
Chrysene: 2 limits, 2 violations of any kind, 0 effluent exceedances.

Arizona holds 91 Publicly owned treatment works coverages of this permit type in EPA’s file; 30 were issued before AZ0020117.

Coverages issued nearest AZ0020117

March 8, 2017: TOWN OF JEROME - WWTP, Jerome, AZ0021804, held by Town Of Jerome
March 8, 2017: BIG PARK DOMESTIC WASTEWATER IMPROVEMENT DISTRICT WWTP, Sedona, AZ0024082, held by Big Park Improvement District
March 21, 2017: WICKENBURG RANCH WRF, Wickenburg, AZ0025976, held by Town Of Wickenburg
April 4, 2017: TOWN OF PRESCOTT VALLEY - WWTP, Prescott Valley, AZ0025381, held by Town Of Prescott Valley
April 11, 2017: CITY OF COTTONWOOD - WWTF, Cottonwood, AZ0024716, held by City Of Cottonwood
August 4, 2017: JOMAX WRF, Peoria, AZ0024945, held by City Of Peoria
August 14, 2017: MAIN STREET WATER TREATMENT PLANT, Yuma, AZ0025411, held by City Of Yuma
August 21, 2017: ED PASTOR KINO ENVIRONMENTAL RESTORATION PROJECT, Tucson, AZ0025291, held by Pima County - Stadium District
August 30, 2017: TOWN OF QUARTZSITE - WWTP, Quartzsite, AZ0023752, held by Town Of Quartzsite
October 12, 2017: CITY OF EL MIRAGE - WWTP, El Mirage, AZ0023272, held by City Of El Mirage

NORTHERN GILA COUNTY SANITARY DISTRICT - AMERICAN GULCH among its neighbors

EPA’s permit file holds 11 discharge permits in the American Gulch subwatershed (HUC 150602030204), AZ0020117 among them. Its county holds 29, 2 of them major permits; AZ0020117 is a major permit.

Other permits in the American Gulch subwatershed (HUC 150602030204)

APD 1509 MANUFACTURING, Payson: AZI101234, minor permit, permit term to December 31, 2024
APD 1509 MANUFACTURING, Payson: AZI107080, minor permit, discharging to Green Valley Park Lake | 34°13'54.20 /111°20, permit term to January 15, 2030
APS TONTO SUBSTATION, Payson: AZC099134, minor permit, permit term to June 30, 2025
APS TONTO SUBSTATION, Payson: AZC099151, minor permit, permit term to June 30, 2025
BEELINE BUS ROUTE IMPROVEMENTS, Unknown: AZC109678, minor permit, permit term to June 30, 2025
PAYSON TRANSFER STATION, Payson: AZI108538, minor permit, discharging to Green Valley Park Lake | 34°13'54.20 /111°20, permit term to January 15, 2030
PULSE COMBUSTION SYSTEMS LLC, Payson: AZMS67283, minor permit, permit term to August 10, 2022
TIMBER RIDGE PHASE 1, Unknown: AZC107644, minor permit, permit term to June 30, 2025
TIMBER RIDGE PHASE 1, Unknown: AZC111709, minor permit, discharging to Unnamed perennial or intermittent tributary, permit term to August 28, 2030
TIMBER RIDGE PHASE 2 & 3, Unknown: AZC114417, minor permit, permit term to August 28, 2030

Identity

Facility as filed	NORTHERN GILA COUNTY SANITARY DISTRICT - AMERICAN GULCH
Permittee as filed	Northern Gila County Sanitary District - Dba Green Valley Water
NPDES ID	AZ0020117
Permit status	Effective
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	June 6, 2017
Expiration date	June 5, 2022
Address	Payson, AZ 85541
Subwatershed	American Gulch (HUC 150602030204)
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

183Pollutants on file
176Under a numeric limit
165With a violation of any kind
8With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 183 are shown.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Zinc, total recoverable	2	12	10	December 31, 2016	112% over the limit
Phosphorus, total [as P]	2	63	6	August 31, 2016	70% over the limit
Nitrogen, total [as N]	0	61	6	February 29, 2016	122% over the limit
Copper, total recoverable	10	8	6	December 31, 2022	13% over the limit
Nitrogen, ammonia total [as N]	6	6	4	April 30, 2019	60% over the limit
Oil & Grease	6	7	3	June 30, 2006	3,400% over the limit
Solids, total suspended	12	48	2	January 31, 2006	757% over the limit
BOD, 5-day, 20 deg. C	12	47	1	October 31, 2014	62% over the limit
Chlorine, total residual	10	84	0
pH	8	24	0
E. coli, colony forming units [CFU]	6	24	0
Flow, in conduit or thru treatment plant	4	24	0
Static 7Day Chronic Pimephales Promelas	0	8	0
Selenium, total recoverable	10	6	0
Mercury, total recoverable	10	6	0
Cyanide, total [as CN]	2	6	0
Cadmium, total recoverable	2	6	0
Lead, total recoverable	2	6	0
Chloroform	2	6	0
Diethyl phthalate	2	6	0
Di[2-ethylhexyl] phthalate [DEHP]	2	6	0
TU Static 7Day Chronic Ceriodaphnia dubia	0	6	0
Sulfide, total [as S]	6	5	0
TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)	4	4	0
Chromium, hexavalent dissolved [as Cr]	2	4	0
Zinc, total [as Zn]	0	4	0
2-Chloronaphthalene	2	3	0
Temperature, water deg. centigrade	6	2	0
Oxygen, dissolved [DO]	2	2	0
Nitrogen, Kjeldahl, total [as N]	2	2	0
Nitrite + Nitrate total [as N]	2	2	0
Arsenic, total recoverable	2	2	0
Thallium, total recoverable	2	2	0
Beryllium, total recoverable [as Be]	2	2	0
Nickel, total recoverable	2	2	0
Silver total recoverable	2	2	0
Antimony, total recoverable	2	2	0
2-Methyl-4,6-dinitrophenol	2	2	0
Diquat	2	2	0
Dichlorobromomethane	2	2	0
Carbon tetrachloride	2	2	0
1,2-Dichloroethane	2	2	0
Bromoform	2	2	0
Dibromochloromethane	2	2	0
Toluene	2	2	0
Benzene	2	2	0
Acenaphthylene	2	2	0
Acenaphthene	2	2	0
Acrolein	2	2	0
Acrylonitrile	2	2	0
Anthracene	2	2	0
Benzo[b]fluoranthene	2	2	0
Benzo[k]fluoranthene	2	2	0
Benzo[a]pyrene	2	2	0
Bis[2-chloroethyl] ether	2	2	0
Bis[2-chloroethoxy]methane	2	2	0
Bis[2-chloroisopropyl] ether	2	2	0
Butyl benzyl phthalate	2	2	0
Chlorobenzene	2	2	0
Chrysene	2	2	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES AZ0020117.

Inspections

EPA’s inspection file holds no inspection for NPDES AZ0020117.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES AZ0020117.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, AZ0020117.

Start the watch

How we handle your data → Privacy

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers NPDES permit AZ0020117 for the Northern Gila County Sanitary District - American Gulch in Payson, AZ, which EPA's file lists as an effective Major discharger permit. The page shows 176 in the discharger class figure, 8 pollutants under a numeric limit, and 8 pollutants with an effluent exceedance.