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Tap water quality report

Northern Section 4 Coop

EPA monitoring tested this supplier for 71 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
11
detected
48
people served
12
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Mixed public/private
Counties served
Pinal

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

12
health-based violations
334
violations on file
5
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2019-02-23
MCL Health-based Resolved 2017-01-01 → 2017-12-31
MCL Health-based Resolved 2017-01-01 → 2017-12-31
MCL Health-based Resolved 2017-01-01 → 2017-12-31
MCL Health-based Resolved 2016-01-01 → 2016-12-31
MCL Health-based Resolved 2016-01-01 → 2016-12-31
MCL Health-based Resolved 2016-01-01 → 2016-12-31
MCL Health-based Resolved 2016-01-01 → 2016-12-31
MCL Health-based Resolved 2005-10-01 → 2005-12-31
MCL Health-based Resolved 2005-10-01 → 2005-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
10000 µg/L 100%
of the EPA limit 10000 µg/L
worst single sample: 27700 µg/L
324/326 SYR4 2012–2019
Copper
219 µg/L 17%
of the EPA limit 1300 µg/L
worst single sample: 390 µg/L
20/20 SYR4 2013–2019
Combined Uranium
39.7104 µg/L 132%
of the EPA limit, at the 95th percentile of samples — 30 µg/L
worst single sample: 57.3 µg/L
17/17 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
21.9 pCi/L 146%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 34 pCi/L
12/17 SYR4 2013–2019
Combined Radium (-226 And -228)
2.055 pCi/L 41%
of the EPA limit 5 pCi/L
worst single sample: 2.1 pCi/L
10/22 SYR4 2013–2019
Lead
12.835 µg/L 86%
of the EPA limit 15 µg/L
worst single sample: 19 µg/L
10/20 SYR4 2013–2019
Lead
0.00062 mg/L 4.1%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2022
Arsenic
3.92 µg/L 39%
of the EPA limit 10 µg/L
worst single sample: 4.4 µg/L
5/5 SYR4 2013–2019
Barium
30.2 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 32 µg/L
5/5 SYR4 2013–2019
Fluoride
1580 µg/L 40%
of the EPA limit 4000 µg/L
worst single sample: 1600 µg/L
5/5 SYR4 2013–2019
Nitrate-Nitrite
9460 µg/L 95%
of the EPA limit 10000 µg/L
worst single sample: 9600 µg/L
3/3 SYR4 2013–2016
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DEWEESE-QUIROZ, NICOLE
Phone
480-622-9716
Email
nldvictorian@yahoo.com

Frequently asked questions about Northern Section 4 Coop

Is Northern Section 4 Coop tap water safe to drink?

EPA monitoring detected 11 contaminants in Northern Section 4 Coop's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Northern Section 4 Coop's water?

EPA monitoring detected Nitrate, Copper, Combined Uranium, Gross Alpha, Excl. Radon And U, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Northern Section 4 Coop serve?

Northern Section 4 Coop reports serving 48 people in Arizona, per its EPA record.

Has Northern Section 4 Coop had any water quality violations?

The EPA has 334 violations on file for Northern Section 4 Coop, of which 12 are health-based (a contaminant limit or required treatment was breached) and 5 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.